EX-99 2 ex96-1.htm EXHIBIT 96.1

 

Exhibit 96.1

 

 

HYCROFT MINE

 

Hycroft Technical Report Summary and Initial Assessment

 

Nevada, USA

 

Effective Date: January 21, 2026

 

Prepared for

Hycroft Mining Holding Corporation

PO Box 3030
Winnemucca, NV 89446

 

Prepared by

Ausenco Engineering South USA

 

Contributing Authors:

Ausenco Engineering South USA Inc.

Hycroft Mining Holding Corporation

Independent Mining Consultants Inc.

WestLand Engineering & Environmental Services, Inc.

 


 

 

 

Date and Signature Page

 

This technical report summary (“TRS”), entitled “Initial Assessment and Technical Report Summary on the Hycroft Mine Project, Nevada, US is current as of January 21, 2026, and has been prepared by:

 

Qualified Person or Consulting Firm Responsible for the following sections Signature Date
Ausenco Engineering South USA, Inc. 1.1, 1.2, 1.3, 1.8, 2.1-2.4.1, 2.5-2.7, 3.1-3.7, 3.10-3.12, 4, 10, 12-19, 21, 22.1 22.2, 22.5, 22.7.1.3, 22.7.2.2, 23.3. 23.5 and portions of sections 1.10, 1.11, 24, and 25 “signed” January 21, 2026
Hycroft Mining Holding Corporation 1.4, 3.9 and 5 “signed” January 21, 2026
Independent Mining Consultants, Inc. 1.5, 1.6, 1.7, 1.9, 2.4.2, 6, 7, 8, 9, 11, 20, 22.3, 22.4, 22.6, 22.7.1.1, 22.7.1.2, 22.7.1.4, 22.7.2.1, 22.7.2.3 23.1, 23.2, 23.4 and portions of sections 1.10, 1.11, 24, and 25 “signed” January 21, 2026
WestLand Engineering & Environmental Services, Inc. 3.8 “signed” January 21, 2026

 

 

 

 

Table of Contents

 

1 Executive Summary 1
  1.1 Introduction 1
  1.2 Terms of Reference 1
  1.3 Mineral Tenure, Surface Rights, Water Rights, and Agreements 2
  1.4 History 2
  1.5 Geology and Mineralization 3
  1.6 Exploration 4
    1.6.1 Exploration Targets 4
  1.7 Sampling 4
  1.8 Metallurgical Testwork 4
  1.9 Mineral Resource Estimate 5
  1.10 Conclusions 9
  1.11 Recommendations 9
2 Introduction 10
  2.1 Introduction 10
  2.2 Terms of Reference 10
  2.3 Qualified Persons 11
  2.4 Site Visits and Scope of Personal Inspection 11
    2.4.1 Site inspection for Jonathan Cooper 11
    2.4.2 Site inspection for John Marek 11
  2.5 Effective Dates 11
  2.6 Information Sources and References 11
    2.6.1 General 11
    2.6.2 Previous technical reports 11
  2.7 Currency, Units, Abbreviations and Definitions 12
3 Property Description 16
  3.1 Introduction 16
  3.2 Property and Title in Jurisdiction 16
  3.3 Project Ownership 17
  3.4 Property Agreements 19
  3.5 Surface Rights 22
  3.6 Water Rights 22
  3.7 Liabilities and Encumbrances 22
  3.8 Environmental Considerations 22
  3.9 Safety Considerations 23

 

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  3.10 Permitting Considerations 23
    3.10.1 Hycroft Expansion Permitting and Timelines 25
    3.10.2 Crofoot Heap Leach Facility Closure 27
  3.11 Social License Considerations 27
  3.12 Project risks and uncertainties 27
4 Accessibility, Climate, Local Resources, Infrastructure and Physiography 28
  4.1 Physiography 28
  4.2 Accessibility 28
  4.3 Climate 28
  4.4 Local Resources and Infrastructure 28
  4.5 Seismicity 31
5 History 32
  5.1 Regional History 32
  5.2 Property Exploration History 32
  5.3 Production 33
6 Geological Setting, Mineralization, and Deposit 35
  6.1 Geological Setting 35
    6.1.1 Regional Geology 35
    6.1.2 Local Geology 35
  6.2 Mineralization and Alteration 38
    6.2.1 Brimstone 38
    6.2.2 Vortex 39
    6.2.3 Bay 40
    6.2.4 Central 41
    6.2.5 Camel 42
  6.3 Deposit Types 42
7 Exploration 44
  7.1 Exploration 44
  7.2 Geophysics 44
  7.3 Soil Sampling 44
  7.4 Rock-chip Sampling 45
  7.5 Drilling 45
    7.5.1 Introduction 45
    7.5.2 Exploration Drilling 45
  7.6 Hydrogeology 50
  7.7 Geotechnical 50
  7.8 Exploration Targets 51

 

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8 Sample Preparation, Analyses, and Security 57
  8.1 Introduction 57
  8.2 Sample Preparation 57
  8.3 Assay Methods 57
    8.3.1 Sample Security 60
  8.4 Sample Storage 61
  8.5 Analytical Results 61
  8.6 QP Comment 61
9 Data Verification 62
  9.1 Verification Procedure 62
  9.2 Certificate of Assay Checks 62
  9.3 QA/QC 2005 - 2024 62
    9.3.1 Standards 2005-2013 63
    9.3.2 Blanks 2008 - 2014 66
    9.3.3 Check Assays 2011-2012 66
    9.3.4 Standards 2021 - 2022 68
    9.3.5 Blank Analysis Results 2021-2022 69
    9.3.6 Duplicate Assays, 2021-2022 70
    9.3.7 Standards 2023 - 2024 71
    9.3.8 Blanks 2023-2024 72
    9.3.9 Duplicate Assays 2023-2024 73
    9.3.10 Check Assays 2023-2024 76
    9.3.11 DDH vs RC for Post 2000 Samples 77
    9.3.12 Old vs. New Drilling 78
    9.3.13 Downhole Surveys 80
  9.4 QP Comment 80
10 Mineral Processing and Metallurgical Testing 81
  10.1 Introduction 81
  10.2 Metallurgical Testwork 81
    10.2.1 Summary of Metallurgical Testwork Programs 81
    10.2.2 Mineralized Materials and Sampling 82
    10.2.3 Hycroft Mineralization Domains 82
  10.3 Legacy Testwork 83
    10.3.1 Comminution Tests 83
    10.3.2 Flotation 84
    10.3.3 Direct Cyanidation 94
    10.3.4 Concentrate Oxidation Tests 94
    10.3.5 Solid-Liquid Separation Tests 100
    10.3.6 Deleterious Elements 101
    10.3.7 Metallurgical Parameters for Process Design Criteria and Financial Analysis 101

 

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11 Mineral Resource Estimates 102
  11.1 Summary 102
  11.2 Model Location 102
  11.3 Database 102
  11.4 Basic Statistics 103
  11.5 Geology 104
  11.6 Lithology 104
  11.7 Alteration 106
  11.8 Structure 107
  11.9 Domains 108
  11.10 Assay Caps 111
  11.11 Bench Height Confirmation 112
  11.12 Composites 113
  11.13 Variography 119
  11.14 Block Grade Estimation 120
    11.14.1 Gold 120
    11.14.2 Silver 121
    11.14.3 Cyanide Ratio 124
    11.14.4 Sulfide Sulfur 125
    11.14.5 Density 126
    11.14.6 Stockpile Grade Estimation 126
    11.14.7 Treatment of 1982 - 1987 Data 127
  11.15 Classification 128
  11.16 Model Verification 129
    11.16.1 Swath Plots 131
    11.16.2 Smear Check 135
  11.17 Mineral Resource Estimate 136
12 Mineral Reserve Estimates 144
13 Mining Methods 145
14 Recovery Methods 146
15 Infrastructure 147
16 Market Studies and Contracts 148
17 Environmental Studies, Permitting, and Plan, Negotiations, or Agreements with Local Individuals or Groups 149
18 Capital and Operating Costs 150
19 Economic Analysis 151
20 Adjacent Properties 152
21 Other Relevant Data and Information 154

 

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22 Interpretation and Conclusions 155
22.1 Introduction 155
22.2 Mineral Tenure, Surface Rights, Water Rights, Royalties, and Agreements 155
22.3 Geology and Mineralization 155
22.4 Exploration 155
22.5 Metallurgical Testwork 155
22.6 Mineral Resource Estimates 156
22.7 Risks and Opportunities 158
    22.7.1 Risks 158
    22.7.2 Opportunities 159
23 Recommendations 160
  23.1 Exploration 160
  23.2 Sample Preparation, Analysis and Security 160
  23.3 Metallurgical Testing 160
  23.4 Mineral Resource Estimate 161
  23.5 Estimated Program Costs 161
24 References 162
25 Reliance on Other Experts 165
Appendix A Hycroft Patented Claims A
Appendix B Hycroft Unpatented Claims B

 

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List of Tables

 

Table 1-1: Hycroft Mineral Resources as of 21 January 2026, Imperial Units 6
Table 1-2: Hycroft Mineral Resources as of 21 January 2026, Metric Units 7
Table 1-3: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 2 oz/ton Cutoff Grade, Imperial Units 8
Table 1-4: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 68.57 g/t (2 oz/ton) Cutoff Grade, Metric Units 8
Table 2-1: Abbreviations and Acronyms 12
Table 2-2: Units of Measurement 14
Table 3-1: Hycroft Annual Land Holding Costs 19
Table 3-2: Hycroft Operating Permits 23
Table 3-3: Hycroft Miscellaneous Permits 24
Table 3-4: Hycroft Miscellaneous Permits 25
Table 3-5: Right-of-Way Payment and Renewal Schedule 25
Table 4-1: Hycroft Water Wells and Permitted Yearly Consumption 31
Table 7-1: Drilling from 2023 and 2024 Supporting an Updated Mineral Resource Estimation 48
Table 7-2: Significant Intercepts (2023) 51
Table 7-3: Significant Intercepts (2024) 53
Table 9-1: Nearest Neighbor Sample Comparison of RC vs Diamond Core Gold and Silver Assays 78
Table 9-2: Nearest Neighbor Sample Comparison of 1982-1987 Gold Assays versus 2005 - 2024 Gold Assays 79
Table 10-1: Metallurgical Testwork Summary Table 81
Table 10-2: Average Sulfur Contents of Oxide, Transition and Sulfide Mineralized Materials 82
Table 10-3: Summary of Test Samples 83
Table 10-4: Grindability Test Summary 83
Table 10-5: G&T Composites 1 through 24 Flotation Test Results 85
Table 10-6: G&T Composites M-1 through M-17 Flotation Test Results 86
Table 10-7: Flotation Reagent Schemes Studied 87
Table 10-8: Estimated Metallurgical Recoveries from 2016 Feasibility Study - Gold and Silver 94
Table 10-9: Hycroft Alkaline POX Testwork Summary 97
Table 10-10: Hycroft Acid POX Testwork Summary 98
Table 10-11: Summary Comparison Table - POX 3 to POX-7 100
Table 10-12: Settling Test Results 101
Table 10-13: Deleterious Element Assay 101
Table 10-14: Process Plant Overall Recovery Prediction 101
Table 11-1: Block Size and Model Size 102

 

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Table 11-2: Data Available for the Assembly of the Resource Model for Au, Ag, AuCn, Sulfide Sulfur 103
Table 11-3: Assay Database (No Stockpile Assays, Inside the Model, and No Drilling from 1982 through 1987) 104
Table 11-4: Population Domains for Grade Estimation 108
Table 11-5: High-grade Silver Vein Domains 109
Table 11-6: Sulfide Domains 109
Table 11-7: Assay Cap Values 111
Table 11-8: Sulfide Cap Values Prior to Compositing 112
Table 11-9: Basic Statistics of Composites, In-Situ Rock, Eliminating Years 1982 to 1987 114
Table 11-10: Basic Statistics of 25 ft Sulfide Composites by Sulfide Domain 118
Table 11-11: Grade Estimation Parameters for Au, Ag 121
Table 11-12: Estimation Parameters for Cyanide Ratio, All Three Domains utilized 1/D3 125
Table 11-13: Sulfide Sulfur Estimation Parameters, All Three Domains Utilized 1/D3 125
Table 11-14: Sulfide Sulfur Default Values if Not Estimated 126
Table 11-15: Density Assigned to the Block Model 126
Table 11-16: Stockpiles Assigned Grades by Inverse Distance Estimation 127
Table 11-17: IMC Smear Check 135
Table 11-18: Economic and Technical Parameters for Hycroft Mineral Resource 138
Table 11-19: Hycroft Mineral Resources as of 21 January 2026, Imperial Units 139
Table 11-20: Hycroft Mineral Resources as of 21 January 2026, Metric Units 140
Table 11-21: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 2 oz/ton Cutoff Grade, Imperial Units 141
Table 11-22: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 3 oz/ton Cutoff Grade, Imperial Units 141
Table 11-23: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 4 oz/ton Cutoff Grade, Imperial Units 142
Table 11-24: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 68.57 g/t (2 oz/ton) Cutoff Grade, Metric Units 142
Table 11-25:

High-grade Silver Bearing Domains, Contained within the Mineral Resource at 102.86 g/t (3 oz/ton)

Cutoff Grade, Metric Units

143
Table 11-26: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 137.14 g/t (4 oz/ton) Cutoff Grade, Metric Units 143
Table 22-1: Hycroft Mineral Resources as of 21 January 2026, Imperial Units 157
Table 22-2: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 2 oz/ton Cutoff Grade, Imperial Units 158
Table 23-1: Estimated Program Costs 161
Table 25-1: Information Provided by Hycroft 165

 

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List of Figures

 

Figure 3-1: Hycroft Mine Location Map 17
Figure 3-2: Claim Map 20
Figure 3-3: Current Property and Facilities Layout (2025) 21
Figure 4-1: Onsite Lab, Admin, Maintenance, Truck Shop, and Warehouse 29
Figure 4-2: Crusher and Conveyor Belt Circuit 29
Figure 4-3: North Merrill-Crowe Facility 30
Figure 4-4: Stage 1 Heap Leach Pad and Ponds Along Jungo Road 30
Figure 6-1: Stratigraphic Column for Hycroft Deposit Area 36
Figure 6-2: Simplified East-West Cross Section through the Hycroft Mine - Section 40600 N 37
Figure 6-3: Vortex Alteration Cross-Section - 40600 N 40
Figure 6-4: Bay Geologic Cross-Section at 50300-N 41
Figure 6-5: Generalized Epithermal Diagram 43
Figure 7-1: Drill Collar Location Plan 47
Figure 9-1: Results of Submitted Gold Standards 2005 - 2013 64
Figure 9-2: Results of Submitted Silver Standards 2005-2013 65
Figure 9-3: Results of Blank Submissions 66
Figure 9-4: Check Assay Results, Fire Assay Gold 2011 - 2012 67
Figure 9-5: Check Assay Results, Fire Assay Silver 2011 - 2011 68
Figure 9-6: Standards Results, 2021 - 2022 69
Figure 9-7: Blank Results, 2021 - 2022 70
Figure 9-8: Duplicate Assay Results, 2021 - 2022 70
Figure 9-9: Gold Standards 2023 - 2024 71
Figure 9-10: Blank Insertions 2004 72
Figure 9-11: Gold Duplicates, 2023-2024 74
Figure 9-12: Silver Duplicates, 2023-2024 75
Figure 9-13: Gold Check Assays 2023 - 2024 76
Figure 9-14: Silver Check Assays, 2023-2024 77
Figure 10-1: Recovery Vs. Time Plot, G&T Kamloops Tests, M Composites 88
Figure 10-2: Gold Grade Distribution Chart 89
Figure 10-3: Silver Grade Distribution Chart 90
Figure 10-4: Total Sulfur Grade Distribution 90
Figure 10-5: Sulfide Sulfur Grade Distribution 91
Figure 10-6: FLS Variability Flotation Recoveries under Optimal Conditions (137 Test Samples) 92

 

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Figure 10-7: FLS Variability Flotation Gold Recoveries Based on Gold Head Grade Groups 93
Figure 10-8: FLS Variability Flotation Silver Recoveries Based on Head Grade Groups 93
Figure 10-9: Oxidation of Central Flotation Concentrate: Sulfate Spike Test 96
Figure 10-10: Demonstration Plant Cyanide Leach Recovery of Au and Ag 96
Figure 11-1: East-West Cross-Section 44000-N Looking North, showing Lithology Types 105
Figure 11-2: East-West Cross-Section 44000-N Looking North, showing Alterations 106
Figure 11-3: Structure and Domain Interpretation (plan view) 107
Figure 11-4: Structure and Domain Interpretation with Silver Wireframes (plan view) 110
Figure 11-5: Bench Height Analysis 113
Figure 11-6: Gold Variograms for Silicic Material Between the Central Fault and East Fault 119
Figure 11-7: Gold Variograms for Silicic Material Between the Range Fault and Central Fault 120
Figure 11-8: E-W Cross-section at 41000-N, Showing Confidence Codes 129
Figure 11-9: E-W Cross-section at 41000-N, Visual Check of Gold Grades in Drillholes and Block Model 130
Figure 11-10: E-W Cross-section at 41000-N, Visual Check of Silver Grades in Drillholes and Block Model 131
Figure 11-11: Swath Plots for Gold, X = East and Y = North Slices, 160 ft Wide Slices 132
Figure 11-12: Swath Plots for Silver, X = East and Y = North Slices, 160 ft Slices 133
Figure 11-13: Swath Plots for Sulfide Sulfur, X = East and Y = North Slices, 160 ft Slices 134
Figure 20-1: Location of Rosebud Property 152

 

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1Executive Summary

 

1.1Introduction

 

This technical report summary (“TRS”) has been prepared by Ausenco Engineering USA South Inc. (“Ausenco”), Independent Mining Consultants, Inc. (“IMC”), and WestLand Engineering & Environmental Services, Inc. (“Westland”) for Hycroft Mining Holding Corporation (“Hycroft”), following the reporting requirements of the United States (“US”) Securities and Exchange Commission’s (“SEC”) Modernization of Property Disclosures of Mining Registrants under subpart 1300 and item 601 (96)(B)(iii) of Regulation S-K for an initial assessment (“IA”).

 

This TRS provides an update to the Mineral Resource Estimate (“MRE”) in Hycroft’s Initial Assessment (“IA”), filed on Electronic Data Gathering, Analysis, and Retrieval (“EDGAR”), under Form 8-K on March 27, 2023. The MRE is based on a milling and pressure oxidation (“POX”) process for sulfide and some transition mineralization and heap leaching process for oxide and some transition mineralization. This TRS includes drill results received through March 17, 2025, which formed the basis of this mineral resource estimation model, and this updated report.

 

The Hycroft mine (“the Mine”) is situated on the western flank of the Kamma Mountains on the eastern edge of the Black Rock Desert approximately 54 miles west of Winnemucca in Humboldt and Pershing Counties, Nevada. The Mine property straddles Townships 34, 35, 35½ and 36 north and Ranges 28, 29 and 30 east (MDB&M) with its central coordinates at approximately latitude 40°52’ north and longitude 118°41’ west.

 

The Mine is accessible via Nevada State Route 49 (Jungo Road), an unpaved road maintained by Humboldt County and Pershing County and Hycroft. The Union Pacific railway, a major east–west railway, runs immediately adjacent to the property.

 

Hycroft, a past producer, has existing facilities on site including two administration buildings, a mobile maintenance shop, a light vehicle maintenance shop, a warehouse, leach pads, primary, secondary and tertiary crushing systems, an assay lab, two Merrill-Crowe process plants, and a refinery.

 

1.2Terms of Reference

 

The firms and consultants who are providing Qualified Persons (“QPs”) responsible for the content of the TRS are, in alphabetical order, Ausenco, Hycroft, IMC and WestLand.

 

The TRS presents the MRE for the mine based on the Pressure Oxidation (POX) and Heap Leach processes.

 

All units of measurement in the TRS are imperial, unless otherwise stated.

 

The monetary units are in US dollars, unless otherwise stated.

 

Mineral resources and mineral reserves are reported in accordance with the US Securities and Exchange Commission Code of Federal Regulations, Subpart 229.1300 – Disclosure by Registrants Engaged in Mining operations (“S-K 1300”).

 

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1.3Mineral Tenure, Surface Rights, Water Rights, and Agreements

 

The Mine property consists of 25 private parcels with patented claims totaling approximately 1,855 acres, along with 3,249 unpatented mining claims covering approximately 62,298 acres, for a combined total of approximately 64,000 acres. On May 15, 2023, Hycroft expanded its holdings by acquiring a 50% undivided interest in three additional patented mining claims, adding approximately 61 acres at one location in Northern Nevada. Some mining claims overlap other Hycroft Mining claims to ensure there are no fractional gaps in mining claim coverage.

 

These claims are contiguous or proximate to the original Crofoot and Lewis claims.

 

Payment of annual claim maintenance and holding fees to the Bureau of Land Management (“BLM”) and Humboldt and Pershing Counties and payment of annual real property taxes for patented claims in Humboldt and Pershing Counties are made every third quarter. Payments are current through the 2025 - 2026 claim years, with US$711,551 paid for 2025 - 2026. Payment of annual claim maintenance and holding fees and real property taxes are required to hold the Hycroft property in good standing. BLM annual maintenance fees for claims are due not later than September 1 of each year. Humboldt and Pershing County State annual holding fees beginning September 1 of each year are due no later than November 1 of each year. Annual real property taxes for patented claims in Humboldt and Pershing Counties are due August 31 of the following year.

 

Hycroft controls all surface and mineral rights within the Hycroft mineral resource area. No further land acquisition is required for the operation of the mine and contemplated processing facilities.

 

1.4History

 

The Mine location is in the Nevada Sulfur District, where mining for native sulfur began in the late 1800’s. Then, in the early part of the 20th century high-grade Ag was mined as were veins of nearly pure alunite (hydroxylated aluminum potassium sulfate mineral) in the southern part of the district. From 1941 to 1943, cinnabar (a mercury sulfide mineral) was also mined. Exploration for native sulfur commenced again in 1966 with the Duval Corporation (Duval) reporting elevated Au and Ag values but finding no significant evidence of a sulfur deposit at depth (Wallace, 1980).

 

In 1977, the Cordex Syndicate mapped and rock-chip sampled the Hycroft property, recognizing the potential for a bulk tonnage, low-grade precious metal deposit. Homestake then took interest in the property and completed surface sampling and exploration drilling during 1981-1982. Mining officially began as a small heap leach operation in 1983 at what was then known as the Lewis Mine. In 1985, Vista gained control of the original Hycroft property. They also acquired the Lewis Mine in early 1987 from F. W. Lewis, Inc., and the Crofoot Mine in April 1988. From 1985 to 1999, they drilled 3,212 exploration holes, totaling 965,552 feet (“ft”) with the bulk of this drilling focused on oxide gold mineralization at Central, Bay and Brimstone. Production from the Brimstone pit commenced in 1985 and continued until December 1998.

 

During 1983 to 1998, the Mine produced approximately 1.2 million ounces (“Moz”) of Au and 2.5 Moz of Ag. An additional 58,700 ounce (“oz”) of Au was produced from the leaching operations from 1999 through 2004. The remaining leasehold interest in the Lewis property was purchased by Vista in December 2005. Production followed at the former Crofoot property in the Bay, South Central, Boneyard, Gap, and Historic Cut-4 pits along the Central Zone. The Mine was placed on a care and maintenance program through 2007. In May 2007, the Nevada-based holdings of Vista were spun out into Allied Nevada Gold Corp. (“Allied Nevada”). The Mine was included as part of the transfer of ownership allowing Allied Nevada to explore, expand, and develop the resources. The Mine was reactivated in September 2007 and achieved planned ore production by the end of 2009. With the construction of the North leach pad in 2013, the total leach pad space was increased to more than 20 million square ft. In 2010, the Mine began an expansion program that included construction of a 21,000 gallon per minute (“gal/min.”) Merrill-Crowe processing plant and a three-stage crushing facility as well as solution pumping capacity upgrades. Active mining was stopped again at the Mine in June 2015 due to low metal prices, but active leaching of previously mined ore continued through 2018. During this time, Allied Nevada emerged from its financial restructuring to become Hycroft Mining Corporation.

 

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In late 2018, Hycroft began construction of new leach pads. In April 2019, active mining began with a focus on transition and sulfide minerals but were set aside for future processing. Active mining ceased in 2021, but gold and silver production continued through 2022.

 

From September 2007 through July 2019 metal sales totaled approximately 900,000 oz of Au and 5.0 Moz of Ag. Active mining ceased and production at the Mine was terminated on November 11, 2021. Annual sales in ounces of Au and Ag produced from the Mine’s heap leach operations over years 2019 through 2022 total approximately 107,258 ounces of Au and 615,000 ounces of Ag.

 

1.5Geology and Mineralization

 

The Hycroft deposit is a low-sulfidation, epithermal, hot springs system that contains gold and silver mineralization. Radiometric dating indicates that the main phase of gold and silver mineralization formed four million years ago, when hydrothermal fluids were fed upward along high angle, normal faults.

 

Low-grade gold and silver mineralization was co-deposited with silica and potassium feldspar throughout porous rock types.

 

A subsequent drop in permeability, due to sealing of the system, led to over pressuring and subsequent repeated hydrothermal brecciation. Additional precious metal mineralization was deposited during this event as breccia zones, veins, and sulfide flooding.

 

Gold and silver mineralization was followed by an intense event of high sulfidation acid leaching of the mineralized volcanic rocks coincident with a regional water table drop. This allowed steam heated sulfur gases to condense into sulfuric acid and leach the upper portion of the mineralized rocks.

 

Oxidation of sulfide mineralization occurs to variable depths over the deposit, depending upon proximity to faults, extent of acid leaching, and depth to water table. Sulfide content through the deposit is variable from 0% to 20%.

 

Six major north-northeast trending, west dipping, normal fault zones appear to broadly control the distribution of alteration. From west to east, these fault zones are referred to as the Range, West Splay, Central, Break, Albert, and East Faults. These major structures down-drop stratigraphy and affect the distribution of alteration and mineralization.

 

A post-mineral basin bounding fault appears to border the Camel Conglomerate and the adjacent Pleistocene Lahontan Lake sediments in the Black Rock Desert. Based on geophysics, this structure is approximately one to two miles west of the Mine site. There are several east–west trending structures that appear to provide post-mineral offset to the deposit. These form a series of horst and grabens within the deposit footprint.

 

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1.6Exploration

 

The Hycroft drill history covers the period from 1982 through 2024. Within the block model there are 5,813 drillholes, with 516,901 drill intervals amounting to 2,668,616 ft of drilling.

 

During 2021 through 2024, Hycroft drilled 260 holes, 105 in 2021, 85 in 2022, 49 in 2023 and 21 in 2024. Most of the 2021 drilling was diamond core that was used for metallurgical testing and assay. The 2022 and 2023 drilling focused on extending mineralization and upgrading areas from Inferred to Measured and Indicated classification. The 2024 drilling focused on high-grade mineralization in Brimstone and Vortex.

 

1.6.1Exploration Targets

 

In mid-2022 Hycroft restarted exploration drilling with the primary goal of converting waste material and Inferred resource into measured and indicated resource. The drilling was predominantly reverse circulation (RC), and RC with core tails occurring on the deeper (1,800 ft) holes. In the second half of 2023, the program was re-aligned with recognition of significant silver grades within subvertical thin veining in Brimstone and within a low angle breccia body at Vortex. Subsequently, the drilling method was switched to core only to better understand and define structural complexities at Brimstone and Vortex. The drilling in Brimstone indicates the zone of veining is related to a structural dilation zone between East Fault related structures. The geometry of the high-grade Brimstone deposit has not been fully defined and remains open at depth and along strike. The drilling in Vortex, along with additional mapping east on the trend of the Vortex mineralization, indicates the Vortex deposit is related to a pre-mineral detachment fault. Exploration targets were also identified outside the resource area to the east (Manganese and Wildrose) and south (Oscar) with work on these areas including detailed field mapping, soil and rock-chip geochemistry, induced polarization (“IP”) geophysics, and core drilling. Additionally, exploration work was initiated at Bay to start defining vein geometry as it extends below the current resource.

 

1.7Sampling

 

Hycroft provided IMC with the database which contained drilling information from 1982 through 2024. Assay data was received through March 2025.

 

The current sample preparation analysis and security follow best practices and are acceptable for application to mineral resource reporting.

 

The historic data collection is unknown. Components of the historic data have been found to be reliable. Some components are not reliable and have been removed or modified prior to incorporation into the mineral resources.

 

After the noted adjustments, John Marek, the Qualified Person (“QP”) finds the data applicable to the determination of mineral resources.

 

1.8Metallurgical Testwork

 

Comminution testwork demonstrates that Hycroft mineralization exhibits very high rock competency in both the semi-autogenous grinding (“SAG”) and ball mill grinding.

 

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In 2021, Hycroft initiated a new metallurgical variability study to evaluate mineralized material characteristics within the current mine plan, validate the metallurgical behavior of material across the mine site; and identify potential variations in processing conditions required to recover gold and silver. The objective of the study was to support development of a robust Hycroft process flowsheet, including definition of key process control points in crushing, grinding, capable of consistently achieving gold and silver recoveries across anticipated metallurgical variability.

 

Key outcomes of this study included the development of the flotation process with significantly improved recoveries. The following key process controls parameters were identified during the flotation process development program:

 

Optimal grind size is a P80 of less than 85 micrometer (“µm”).
  
Flotation time is 24 minutes.
  
Adjusted pH level is 4.7.
  
Flotation mass pull is 20% to 25% with 22% being the target.

 

A total of 137 samples were tested under these selected conditions to achieve higher gold and silver recoveries to flotation concentrate. The results show that gold recovery exhibits a broader distribution, with values ranging from approximately 72% to 98% and a statistical median near 88%, indicating greater sensitivity to operating conditions. In contrast, silver recovery is generally higher, with recoveries spanning approximately 76% to 100% and a statistical median exceeding 92%. This is a significant improvement from the gold flotation recovery and silver flotation recovery values reported in the 2023 Technical Report.

 

In 2025, Hycroft completed a series of POX tests demonstrating that POX at 225°C with oxygen overpressure, followed by hot cure, lime boil, and cyanide leaching, is a technically viable and repeatable processing route for the pyrite concentrate. Gold and silver recoveries of approximately 93% and 86%, respectively, were consistent with past performance. Overall, considering the full flowsheet involving flotation, POX, and leaching, gold recovery has improved to approximately 83% and silver recovery has improved to approximately 78%. Overall recovery for both gold and silver are exceeding the values assumed in the 2023 Technical Report.

 

Hycroft existing heap leaching was discontinued by 2022. Heap leach operations are expected to restart once new oxide material becomes available.

 

1.9Mineral Resource Estimate

 

The mineral resource at the Hycroft property is currently envisioned to be produced from a conventional hard rock open pit mine feeding two alternative process facilities:

 

1.Run-of-mine (“ROM”) oxide material will be directed to cyanide heap leaching, producing a gold and silver doré.
  
2.Sulfide material will be directed to a crushing, flotation milling followed by POX of the concentrate to make a gold and silver doré.

 

Transitional material will be directed to either (ROM) cyanide heap leaching or flotation milling followed by pressure oxidation (“POX”) depending on the economics of the material.

 

The terms of reference for this estimate of mineral resources are mineralization in-place. The procedures described in the following paragraphs establish that the stated mineral resources have reasonable prospects of economic extraction.

 

Mineral resources were developed using a computer-based block model for mineralization and pit optimization software to determine mineralization with reasonable expectation of economic extraction as defined by S-K 1300.

 

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The cutoff grade that is reported for this statement of mineral resources is based on mining and processing costs estimated by IMC and Ausenco combined with reasonable metal prices. The internal or marginal cutoff is applied and reported where the benefits of selling the recovered metal will pay for the processing and fixed general and administrative (“G&A”) costs. The cutoff is presented in terms of Net of Refining which is often abbreviated as NSR.

 

Metal prices for mineral resource were US$3,100/ oz Au and US$36.00/ oz Ag. Spot prices for gold and silver in 2025 ranged from US$2,798 to US$4,323/ oz Au and US$31.34 to US$71.63/ oz Ag. The spot prices for gold and silver on January 21, 2026, were US$4,726/ oz Au and US$93.50/ oz Ag. The prices selected for determination of mineral resources are 35% below the spot gold price and 62% below the spot silver price on January 21, 2026, and do not include extensive price extrapolation.

 

The risks to the mineral resource are project costs and project recoveries as well as metal prices that can have a substantial impact on the mineral resource both positively and negatively. Hycroft mineral resources are sensitive to estimated parameters of operating costs, recoveries, and metal prices. That sensitivity may result in future variation in the mineral resource as costs and recoveries are refined.

 

Mineral resources are not mineral reserves, and detailed economic considerations have not been applied. Modifying factors for mine and process design have not been applied.

 

Table 1-1: Hycroft Mineral Resources as of 21 January 2026, Imperial Units

 

Classification

Cutoff Grade

$ Net

of Refining / ton

Approximate

Cutoff, AuEq (oz/ton)

Ktons

Gold

(oz/ton)

Silver

(oz/ton)

Sulfide

Sulfur (%)

Contained Ounces

Gold

Oz x 1000

Silver

Oz x 1000

Heap Leach Resource
Measured $1.88 - $3.63 0.001 - 0.002 92,994 0.005 0.11 1.83 446 10,322
Indicated $1.88 - $3.63 0.001 - 0.002 110,374 0.004 0.09 1.54 475 9,492
Meas + Ind $1.88 - $3.63 0.001 - 0.002 203,368 0.005 0.10 1.67 921 19,814
Inferred $1.88 - $3.63 0.001 - 0.002 110,018 0.005 0.09 1.41 528 10,122
Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach
Measured $16.73 0.007 734,571 0.011 0.43 2.03 8,154 316,600
Indicated $16.73 0.007 748,876 0.010 0.30 1.84 7,339 226,161
Meas + Ind $16.73 0.007 1,483,447 0.010 0.37 1.93 15,493 542,761
Inferred $16.73 0.007 459,646 0.010 0.27 1.76 4,505 122,725
Combined Mineral Resources Leach Plus Mill
Measured $1.88 - $16.73 0.001 - 0.007 827,565 0.010 0.40 2.01 8,600 326,922
Indicated $1.88 - $16.73 0.001 - 0.007 859,250 0.009 0.27 1.80 7,814 235,653
Meas + Ind $1.88 - $16.73 0.001 - 0.007 1,686,815 0.010 0.33 1.90 16,414 562,575
Inferred $1.88 - $16.73 0.001 - 0.007 569,664 0.009 0.23 1.69 5,033 132,847

 

Notes:

 

1.Mineral resources based on metal prices of $3,100/troy oz Au and $36.00/troy oz Ag
2.Cutoffs are Income – Refining Cost = NSR
3.Gold Equivalent (AuEq) for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay, or at average gold leach recovery AuEq = Fire Gold + 0.0035 Total Silver Assay
4.Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay
5.Numbers may not match exactly due to rounding
6.Mineral resources are contained within a computer-generated optimized pit
7.Total material in that pit is 5.42 billion tons

 

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8.Mineral resources are not mineral reserves, and detailed economic considerations have not been applied
9.Modifying factors for mine and process design have not been applied
10.All units are imperial. Ktons means 1,000 short tons of 2,000 lbs Au and Ag grades are in troy ounces per short ton (oz/ton)

 

Table 1-2: Hycroft Mineral Resources as of 21 January 2026, Metric Units

 

Classification

Cutoff Grade

$ Net

of Refining/tonne

Approximate

Cutoff, AuEq g/t

Ktonnes Gold Silver Sulfide Contained Ounces
Gold Silver
g/t g/t % Oz x 1000 Oz x 1000
Heap Leach Resource
Measured $2.07 - $4.00 0.027 - 0.055 84,364 0.164 3.80 1.83 446 10,322
Indicated $2.07 - $4.00 0.027 - 0.055 100,131 0.147 2.95 1.54 475 9,492
Meas + Ind $2.07 - $4.00 0.027 - 0.055 184,495 0.155 3.34 1.67 921 19,814
Inferred $2.07 - $4.00 0.027 - 0.055 99,808 0.164 3.15 1.41 528 10,122
Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach
Measured $18.44 0.206 666,403 0.380 14.76 2.03 8,154 316,600
Indicated $18.44 0.206 679,380 0.336 10.34 1.84 7,339 226,161
Meas + Ind $18.44 0.206 1,345,783 0.358 12.53 1.93 15,493 542,761
Inferred $18.44 0.206 416,991 0.336 9.14 1.76 4,505 122,725
Combined Mineral Resources, Leach Plus Mill
Measured $2.07 - $18.44 0.027 - 0.206 750,767 0.356 13.53 2.01 8,600 326,922
Indicated $2.07 - $18.44 0.027 - 0.206 779,512 0.311 9.39 1.80 7,814 235,653
Meas + Ind $2.07 - $18.44 0.027 - 0.206 1,530,279 0.333 11.42 1.90 16,414 562,575
Inferred $2.07 - $18.44 0.027 - 0.206 516,799 0.303 7.99 1.69 5,033 132,847

 

Notes:

 

1.Mineral resources based on metal prices of $3,100/ oz Au and $36.00/ oz Ag
2.Cutoffs are Income – Refining Cost = NSR
3.Gold Equivalent for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay
4.Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay
5.Numbers may not match exactly due to rounding
6.Mineral resources are contained within a computer-generated optimized pit
7.Total material in that pit is 4.92 billion tonnes
8.All units on this table are metric: Ktonnes means 1,000 tonnes. Au and Ag grades are in grams per tonne (g/t)
9.Mineral resources are not mineral reserves, and detailed economic considerations have not been applied
10.Modifying factors for mine and process design have not been applied

 

Contained within the Mineral Resource at Hycroft are a series of high-grade silver veins at Brimstone and zones of higher silver concentrations in Vortex that are associated with a low angle breccia body. Table 1-3 and Table 1-4 are the tabulation of gold and silver within the domain volumes that are contained within the Mineral Resources at 2 oz/ton cutoff grade in imperial and 68.57 g/t cutoff grade in metric.

 

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Table 1-3: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 2 oz/ton Cutoff Grade, Imperial Units

 

Classification Cutoff Grade Silver (oz/ton) Ktons

Gold

(oz/ton)

Silver
(oz/ton)
Sulfide Sulfur (%) Gold Contained
oz x 1000
Silver Contained
oz x 1000
Brimstone
Measured 2.00 3,195 0.011 8.35 1.33 35 26,686
Indicated 2.00 330 0.010 3.11 1.87 3 1,025
Meas + Ind 2.00 3,525 0.011 7.86 1.38 38 27,711
Inferred 2.00 15 0.008 3.52 1.13 0 52
Vortex
Measured 2.00 9,126 0.018 3.81 1.49 160 34,781
Indicated 2.00 7,342 0.014 3.78 1.24 100 27,726
Meas + Ind 2.00 16,468 0.016 3.80 1.38 261 62,507
Inferred 2.00 3,644 0.014 3.65 1.27 50 13,307
Brimstone + Vortex
Measured 2.00 12,322 0.016 4.99 1.45 195 61,467
Indicated 2.00 7,671 0.013 3.75 1.26 104 28,750
Meas + Ind 2.00 19,993 0.015 4.51 1.38 299 90,218
Inferred 2.00 3,659 0.014 3.65 1.27 51 13,359

 

Table 1-4: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 68.57 g/t (2 oz/ton) Cutoff Grade, Metric Units

 

Classification Cutoff Grade Silver (g/t) Ktonnes Gold
(g/t)
Silver
(g/t)
Sulfide
(%)
Contained Ounces
Gold
Oz x 1000
Silver
Oz x 1000
Brimstone
Measured 68.57 2,899 0.372 286.35 1.33 35 26,686
Indicated 68.57 299 0.332 106.62 1.87 3 1,025
Meas + Ind 68.57 3,198 0.368 269.54 1.38 38 27,711
Inferred 68.57 13 0.289 120.74 1.13 0 52
Vortex
Measured 68.57 8,279 0.603 130.67 1.49 160 34,781
Indicated 68.57 6,660 0.469 129.48 1.24 100 27,726
Meas + Ind 68.57 14,940 0.543 130.14 1.38 261 62,507
Inferred 68.57 3,306 0.475 125.20 1.27 50 13,307
Brimstone + Vortex
Measured 68.57 11,178 0.543 171.04 1.45 195 61,467
Indicated 68.57 6,959 0.463 128.49 1.26 104 28,750
Meas + Ind 68.57 18,137 0.512 154.71 1.38 299 90,218
Inferred 68.57 3,319 0.474 125.18 1.27 51 13,359

 

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1.10Conclusions

 

Hycroft, in conjunction with IMC, developed the Hycroft deposit block model based on 5,813 drillholes with 516,901 drill intervals amounting to 2,668,616 ft of drilling. The model was assembled by Ryan Rodney, C.P.G. of Hycroft. IMC worked with Hycroft and reviewed the final model. IMC is the qualified firm for the statement of mineral resources with John Marek P.E. acting as the Engineer of Record.

 

Previous Hycroft metallurgical test programs conducted on the Hycroft sulfide deposit consisted of a series of comminution, flotation, concentrate oxidation, and cyanide leaching tests on mineralized materials, flotation tailings, and oxidized sulfide concentrates.

 

Comminution testwork demonstrates the Hycroft mineralization exhibits very high rock competency. Flotation testwork conducted at grind sizes ranging from 65 µm to 150 µm, at neutral pH and using strong non-selective sulfide collectors, achieved meaningful Au and Ag recoveries. Metallurgical testwork conducted from 2021 through 2025 indicates that Hycroft sulfide mineralization can be processed using a flotation and POX flowsheet. Flotation optimization resulted in improved gold and silver recoveries, and POX test results support the application of POX followed by hot cure, lime boil, and cyanide leaching for treatment of the pyrite concentrate.

 

The mineral resources statement was developed using a conventional computer-based block model. Each block was evaluated to determine the net return from the following two processes:

 

ROM cyanide heap leaching and Merrill-Crowe of oxide and some transition materials.
  
Milling, Flotation, POX, Hot Cure, and Lime Boil followed by Cyanide Leach and Merrill-Crowe of sulfide and some transition materials.

 

1.11Recommendations

 

Ausenco’s QP recommends that Hycroft proceed with a further study to develop a process plant to treat sulfide and transition mineralized materials, while oxide and some transition materials are processed via heap leaching. That study will provide updated process design criteria and cost estimates.

 

Ausenco also recommends additional metallurgical testwork focusing on optimizing grind size and flotation mass pull, flotation reagent suite, POX operating conditions, equipment sizing, residence times, as well as lime/limestone, and oxygen consumption. Further recommendations include obtaining solids-liquid separation data and flocculant requirements and optimizing cyanide consumption and reagent usage in the cyanide destruction circuit.

 

IMC recommends ongoing targeted drilling as budgets and time allow.

 

In the future, IMC recommends that complete QA/QC procedures be applied to silver and sulfide sulfur assaying and sampling. Regular sampling for QA/QC should be applied to those values in the same way as they have been recently applied to gold.

 

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2Introduction

 

2.1Introduction

 

This technical report summary (“TRS”) summarizes the results of an initial assessment (“IA”) and updates the mineral resource estimate (“MRE”) for the Mine located in northwestern Nevada. The work has been prepared at the request of Hycroft Mining Holding Corporation (“Hycroft”). The TRS follows the requirements and outline as described in the. US Securities and Exchange Commission Code of Federal Regulations, Subpart 229.1300 – Disclosure by Registrants Engaged in Mining operations (“S-K 1300”). This TRS has been completed by Ausenco Engineering South USA (“Ausenco”), Hycroft, Independent Mining Consultants, Inc. (“IMC”) and WestLand Engineering & Environmental Services (“Westland”).

The updated statement of mineral resources reflects information developed through 2025.

 

This TRS supersedes all previous technical studies, including the TRS filed on EDGAR under Form 8-K on March 27, 2023.

 

The mineral resource is based on information provided by Hycroft which has been checked and validated wherever possible by IMC. The mineral resource is based on information and provided by Hycroft. IMC, an independent third party with necessary relevant experience, has checked and validated the mineral resource wherever possible, and is assuming responsibility for the published mineral resource.

 

2.2Terms of Reference

 

Some sections of this report were published previously as part of the previous Technical Reports and are listed below in Section 2.6. The sections of these reports which were utilized have been reviewed by both IMC and Ausenco in sufficient detail so that the QPs at IMC and Ausenco have assumed responsibility for this work.

 

Hycroft staff have provided all requested information and have worked with IMC and Ausenco in an open and transparent manner throughout the Project period.

 

This report uses imperial units including troy ounces for gold and silver, throughout. Occasional use of non-imperial units will be clearly noted and explained in text when they occur. Tons means short tons of 2,000 lbs, Ktons means 1,000 short tons. Precious metal grades are presented in units of troy ounces per short ton (“oz/ton”).

 

The firms and consultants who are providing QPs responsible for the content of the TRS are, in alphabetical order, Ausenco Engineering South USA, Inc. (“Ausenco”), Hycroft Mining Holding Corporation, Independent Mining Consultants, Inc. (“IMC”) and WestLand Engineering & Environmental Services, Inc. (“Westland”).

 

This TRS presents the MRE for the Hycroft mine (“the Mine”), and an initial assessment based on the pressure oxidation (“POX”) process.

 

All units of measurement in the TRS are imperial, unless otherwise stated.

 

The monetary units are in US dollars, unless otherwise stated.

 

Mineral Resources are reported in accordance with SK-1300.

 

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2.3Qualified Persons

 

Below is a list of the firms that acted as QPs in the preparation of this TRS:

 

Ausenco Engineering South USA, Inc. is responsible for sections 1.1, 1.2, 1.3, 1.8, 2.1-2.4.1, 2.5-2.7, 3.1-3.7, 3.10-3.12, 4, 10, 12-19, 21, 22.1 22.2, 22.5, 22.7.1.3, 22.7.2.2, 23.3, 23.5 and portions of sections 1.10, 1.11, 24, and 25.
  
Hycroft is responsible for sections 1.4, 3.9, and 5.
  
Independent Mining Consultants, Inc. is responsible for sections 1.5, 1.6, 1.7, 1.9, 2.4.2, 6, 7, 8, 9, 11, 20, 22.3, 22.4, 22.6, 22.7.1.1, 22.7.1.2, 22.7.1.4, 22.7.2.1, 22.7.2.3 23.1, 23.2, 23.4 and portions of sections 1.10, 1.11, 24, and 25.
  
WestLand Engineering & Environmental Services, Inc., is responsible for Section 3.8.

 

2.4Site Visits and Scope of Personal Inspection

 

2.4.1Site inspection for Jonathan Cooper

 

Ausenco’s QP, Jonathan Cooper, P.Eng., completed a site visit of the Hycroft property from April 8 to 11, 2024 to inspect the existing infrastructure.

 

2.4.2Site inspection for John Marek

 

IMC’s QP, John Marek, P.E., visited the Hycroft property on August 5, 2021, to review the existing core and logs.

 

2.5Effective Dates

 

The overall Report effective date is January 21, 2026.

 

2.6Information Sources and References

 

2.6.1General

 

The authors sourced information from documents listed in the References section of this report (Section 24).

 

Reports and documents listed in Section 2.6.2 and Section 25 of this Report were used to support preparation of the TRS.

 

2.6.2Previous technical reports

 

Hycroft Mining Holding Corporation previously filed the following Technical Reports:

 

Technical Report Summary of Initial Assessment on the Hycroft Mine, Nevada, United States of America, Prepared by Ausenco Engineering USA South Inc for Hycroft Mining Corporation, Effective date: March 27, 2023.
  
Technical Report Summary of Initial Assessment on the Hycroft Mine, Nevada, United States of America, Prepared by Ausenco Engineering USA South Inc for Hycroft Mining Corporation, Effective date: February 18, 2022.
  
Newman, S., DeLong, R.F., Clarkson, B. M., Carew, T., Hartmann, M., Technical Report Summary: Heap Leaching Feasibility Study. Prepared by M3 Metals Corp for Hycroft Mining Corporation, Effective date: July 31, 2019.

 

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Hycroft Mining Corporation completed the following Technical Report in accordance Canada’s National Instrument 43-101 Standards of Disclosure for Mineral Projects and which are available on the SEDAR website (www.SEDARplus.ca)

 

Ibrado, A.S., Roth, D.K., Snider, J.W., Brown, R.A., Harris, D.A., Pennstrom, W.J., Peterson, A.T. NI 43-101 Technical Report Mill Expansion Feasibility Study, Winnemucca, Nevada, USA. Prepared by M3 Engineering & Technology Corp for Allied Nevada Gold Corp., Effective date: November 03, 2014.

 

2.7Currency, Units, Abbreviations and Definitions

 

All units of measurement in this report are imperial, and all currencies are expressed in US dollars (symbol: US$; currency: USD) unless otherwise stated. Contained gold metal is expressed as troy ounces (oz), where 1 oz = 31.1035 g. All material tons are expressed as dry tons unless stated otherwise. A list of abbreviations and acronyms is provided in Table 2-1, and units of measurement are listed in Table 2-2.

 

Table 2-1: Abbreviations and Acronyms

 

Abbreviation Description
AAL American Assay Laboratories
AAO atmospheric alkaline oxidation
AAS atomic absorption spectroscopy
AES atomic emission spectrometry
Allied Nevada Allied Nevada Gold Corp.
AR aqua regia
Ag silver
ALS Auld Lang Syne formation
Au gold
Ausenco Ausenco Engineering USA South Inc.
Az azimuth
BLM Bureau of Land Management
BWi bond ball mill work index
CCD counter current decantation
CNI Call & Nicholas, Inc.
CWi bond crusher work index
DDH diamond drill hole
DSHA deterministic seismic hazard assessment
EA Environmental Assessment
EDGAR Electronic Data Gathering, Analysis, and Retrieval
FA fire assay
FPCP Final Permanent Closure Plan
G&A general and administration
HLF Heap leach facility

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 12

 

Abbreviation Description
Hycroft Hycroft Mining Holding Corporation
IA initial assessment
ICP inductively coupled plasma
ID2 inverse distance squared
ID3 inverse distance cubed
IMC Independent Mining Consultants, Inc.
IP induced polarization
ISO International Organization for Standardization
LECO Laboratory Equipment Corporation
LOM life of mine
LWIR Longwave Infrared
LTI Lost Time Incident
M3 M3 Engineering and Technology Corp
MRE mineral resource estimate
MS mass spectrometry
MWWAI Michael W. West and Associates Inc.
NDEP Nevada Division of Environmental Protection
NDOW Nevada Department of Wildlife
NDWR Nevada Division of Water Resources
NEPA National Environmental Policy Act
NN nearest neighbor
NSR net smelter return
OES optical emission spectrometry
POX pressure oxidation
QA/QC quality assurance/quality control
QP qualified person (as defined in National Instrument 43-101)
RC reverse circulation drilling
ROM run of mine
RPEEE reasonable prospect of eventual economic extraction
RQD rock quality designation
SAG semi-autogenous grinding
SD standard deviation
SEC Securities and Exchange Commission
SHLF South Heap Leach Facility
S-K 1300 US Securities and Exchange Commission Ruling S-K Subpart 1300
SRK SRK Consulting (US) Inc.
SS sulfide sulfur
SWIR Shortwave Infrared

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 13

 

Abbreviation Description
the Mine Hycroft Mine
TMF tailings management facility
TRIFR Total Recordable Incident Frequency Rate
TRS technical report summary
TSG Tertiary Sulphur Group
USGS United States Geological Survey
USFWS US Fish and Wildlife Service
Westland WestLand Engineering & Environmental Services, Inc.

 

Table 2-2: Units of Measurement

 

Unit Description
µm micrometer
ac acre
asl above sea level
Axb hardness of ore in term of impact breakage, unitless
B billion
bgs below ground surface
°C Celsius
Cfs cubic feet per second
D day
°F Fahrenheit
fasl feet above sea level
ft feet
G gravity
g gram (unit of weight)
g/t grams per ton
gal/min. gallons per minute
Hp horsepower
in inch
in/a inches per year
Kg kilogram
ktons kilo short tons
kV kilovolt
lb pound
M million
mi mile
mi2 square mile

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 14

 

Unit Description
mm millimeters
Mtons million short tons
min. minute
Moz Million ounces
oz troy ounce
oz/ton or opt troy ounces per short ton
oz/gal troy ounces per gallon
ppm parts per million
ppt parts per trillion
psig pressure per square inch
ton short ton
ton/d short tons per day
tn short ton
TSS total suspended solids
US$, USD United States dollars (symbol; currency)
wt/wt weight percent
% percent

 

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 15

 

3Property Description

 

3.1Introduction

 

The Mine is an existing gold and silver operation located 54 miles west of Winnemucca in Humboldt County and Pershing County, Nevada, as shown in Figure 3-1. The Site is accessible via Nevada State Route 49 (Jungo Road), an all-weather, unpaved road that is maintained by Humboldt County and Hycroft. A major east–west railway runs immediately adjacent to the property.

 

The Mine property straddles Townships 34, 35, 35½ and 36 north and Ranges 28, 29 and 30 east (MDB&M) with an approximate latitude 40°52’ north and longitude 118°41’ west. The mine is situated on the western flank of the Kamma Mountains on the eastern edge of the Black Rock Desert.

 

The Mine property was consolidated through multiple transactions over several years and is described below. Some unpatented mining claims overlap other Hycroft patented and unpatented mining claims to ensure there are no fractional claim gaps. Existing facilities on site include two administration buildings, a mobile maintenance shop, a light vehicle maintenance shop, a warehouse, an assay laboratory, three heap leach pads – Crofoot, North, and Brimstone, primary, secondary and tertiary crushing systems, two Merrill-Crowe process plants and a refinery. It is considered that existing components of the mine property would be utilized for future development. The Mine operates under permit authorization from the Bureau of Land Management (“BLM”), Nevada Division of Environmental Protection (“NDEP”), Nevada Department of Wildlife (“NDOW”), Nevada Division of Water Resources (“NDWR”) and County agencies. On the date of this report, Hycroft has approximately 52 employees.

 

3.2Property and Title in Jurisdiction

 

The mine is owned and managed by Hycroft Resources and Development, LLC, a wholly owned subsidiary of Hycroft Mining Holding Corporation.

 

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Figure 3-1: Hycroft Mine Location Map

 

Source: Nevada Bureau of Mines, 2023

 

3.3Project Ownership

 

The Mine property consists of 25 private parcels with patented claims totaling approximately 1,855 acres, along with 3,249 unpatented mining claims covering approximately 62,298 acres, for a combined total of approximately 64,000 acres. On May 15, 2023, Hycroft expanded its holdings by acquiring 50% undivided interest in three additional patented mining claims, adding approximately 61 acres at one location in Northern Nevada. Some mining claims overlap other Hycroft Mining claims to ensure there are no fractional gaps in mining claim coverage.

 

There are 30 unpatented placer claims, and 3,219 unpatented lode claims are in Humboldt County and Pershing County, Nevada as follows:

 

T36N, R29E, Sections: 28, 32, 33

 

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T36N, R30E, Sections: 19, 28-34
  
T35 1/2N, R29E, Sections: 25, 26, 35, 36
  
T35N, R29E, Sections: 1-3, 10-15, 21-28, 31-36
  
T35N, R30E, Sections: 2-10, 15-23, 25-36
  
T34N, R28E, Sections: 1, 2, 11, 12, 13
  
T34N, R29E, Sections: 1-28, 33
  
T34N, R30E, Sections: 2-11, 17-20, 29, 30

 

The 25 private patented claims are located in Humboldt County and Pershing County, Nevada as follows:

 

T35N, R29E, Sections: 24, 25, 35, 36
  
T35N, R30E, Sections: 19, 30, 31
  
T34N, R29E, Sections: 1, 2

 

The mining claim package is depicted in Figure 3-2. Individual mining claims for each township range and section are presented in Appendix A – Patented Claims and Appendix B – Unpatented Claims. Ausenco has defined the project centroid in the following mine grid coordinates: 51500 N and 20500 E.

 

This point is located central to all mine facilities. The project centroid shall be used to reference all other locations within one mile.

 

Much of the project area is located on un-surveyed public and private land for which the sections, ranges, and townships listed above have been interpolated. Patented claims have been surveyed (Wilson, 2008; Prenn, 2006). The following is a list of land acquisitions/transactions made over the years which constitute the entire Hycroft land claim package and has been assembled through a series of transactions.

 

The Crofoot property and approximately 3,500 acres of claims were acquired by Vista in 1985. The Crofoot property, originally held under lease, is owned by Hycroft. The Crofoot royalty was terminated January 7, 2026. The Lewis property and approximately 8,700 acres of claims were acquired by Vista in early 1987. In 2006, approximately 13,100 acres of additional claims were staked by Vista. These claims are contiguous or proximate to the original Crofoot and Lewis claims.

 

From 2007 through 2015, Hycroft staked additional lode mining claims contiguous to existing Hycroft claims that cover approximately 37,373 acres. Some of these lode claims overlap existing placer claims.

 

Payment of annual claim maintenance and holding fees to the BLM and Humboldt and Pershing Counties and payment of annual real property taxes for patented claims in Humboldt and Pershing Counties are made every third quarter (Q3). Payments are current through the 2025 - 2026 claim years, with US$711,551 paid for 2025 - 2026. Payment of annual claim maintenance and holding fees and real property taxes are required to continue to hold the Hycroft property in good standing from. BLM annual maintenance fees for claims are due not later than September 1 of each year. Humboldt and Pershing County State annual holding fees beginning September 1 of each year are due no later than November 1 of each year. Annual real property taxes for patented claims in Humboldt and Pershing Counties are due August 31 of the following year.

 

Hycroft controls all surface and mineral rights within the Hycroft mineral resource area. No further land acquisition is required for the operation of the mine and contemplated processing facilities.

 

Figure 3-3 shows the property layout including site facilities, mine workings, leach pads and waste dumps.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 18

 

3.4Property Agreements

 

Table 3-1 shows the royalty amount and other annual land holding costs.

 

Table 3-1: Hycroft Annual Land Holding Costs

 

Month Due Lessor Type Amount
Monthly Sprott Royalty1 Net Smelter Return Royalty 1.5% NSR
August-October US BLM, Humboldt & Pershing Counties Claim Fees US$ 711,551

 

Note:

 

1.The Sprott royalty is equal to 1.5% of Net Smelter Returns (NSR) free and clear of withholding taxes or similar taxes.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 19

 

Figure 3-2: Claim Map

 

Source: Hycroft, 2026

 

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Figure 3-3: Current Property and Facilities Layout (2025)

 

Source: Hycroft, 2025

 

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3.5Surface Rights

 

Hycroft controls all surface and mineral rights within the Hycroft mineral resource area. No further land acquisition is required for the operation of the mine and contemplated processing facilities.

 

3.6Water Rights

 

Hycroft controls 16 separate water-right permits administered by the NDWR. These permits are held in ownership either by Hycroft, or by other private parties and leased to Hycroft. Water resources to support the Mine are controlled under 14 permits in the Black Rock Desert Basin totaling 20,414.9 acre-feet/year (6.65 billion gallons/year). Two of these water permits are outside the Black Rock Desert Hydrographic Basin and used to support construction maintenance of Jungo Road with Humboldt County.

 

3.7Liabilities and Encumbrances

 

The consolidated financial statements of Hycroft Mining Holding Corporation set forth its material liabilities as of the date of such financial statements. The assets of Hycroft Mining Holding Corporation and its subsidiaries (collectively, the “Company”) are subject to encumbrances and obligations, including encumbrances and obligations under and associated with the Sprott Royalty Agreement dated May 29, 2020, by and between the Company and Sprott Private Resource Lending II (Co) Inc.

 

3.8Environmental Considerations

 

Gold production began on the property in 1983 and continued through 1985 when Standard Slag opened the Lewis Mine. There was a brief gap in mining until Hycroft acquired the Lewis Mine and the Crofoot claims and recommenced mining in 1988. Mining operations continued until 1998 when mining was placed on standby due to low metal prices. Process operations continued until 2004 when the property was placed on care and maintenance.

 

Efforts began in 2003 to update the Reclamation Plan, associated cost estimate, and related amount of surety bond posted with the BLM. During the years 2011 and 2012, Hycroft increased collateral account balances to support additional surety bonds for the benefit of the BLM. These additional surety bonds allowed Hycroft to continue operations at the Mine and to expand exploration activities outside of the Mine. In 2011, Hycroft received a reimbursement of US$0.5 million related to reclamation costs that had been paid out.

 

In January 2014, the BLM approved an updated reclamation cost estimate allowing for the phased bonding of the expansion activities. The required bond amount was lowered from US$63 million to US$58.3 million. Hycroft has Surface Management Surety Bonds with insurance companies that meet the financial requirements of the BLM to comply with the total requirement of US$58.3 million as detailed in the September 2013 reclamation cost estimate that requested the phasing of the mill expansion activities. Additionally, Hycroft has posted a bond with the BLM in the amount of US$0.6 million for the adjacent water supply well field, well field monitoring and exploration within the project boundary. Hycroft has US$22.4 million in restricted cash for collateral for these bonds.

 

The Hycroft area has been surveyed for surface water resources, including Waters of the United States, biological resources, cultural resources, and groundwater resources. The Golden Eagle (Aquila chrysaetos) is known to occur adjacent to the Hycroft Project. Hycroft is working with the BLM and the US Fish and Wildlife Service (“USFWS”) in the management of this species.

 

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3.9Safety Considerations

 

The operation of the Mine is subject to regulation by the Federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act). MSHA inspects the Mine on a regular basis and issues various citations and orders when it believes a violation has occurred under the Mine Act. In years ending 2024 and 2025, after multiple inspections, MSHA has issued no (0) citations and no (0) “Significant and Substantial" Violations under section 104(a) of the Mine Act. There have been no fines including citations and orders issued to contractors for the year ending December 31, 2025.

 

Hycroft mandated mine safety and health programs include employee and contractor training, risk management, workplace inspection, emergency response, accident investigation, and program auditing with a goal to have zero workplace injuries and occupational illness. In 2023, Hycroft implemented multifunctional workplace inspections and monthly employee engagement sessions. As a result, Hycroft has now operated for three consecutive years at a 0.0 Total Recordable Incident Frequency Rate (“TRIFR”) and achieved over 1.4 million hours without a Lost Time Incident (“LTI”). The Mine’s TRIFR per 200,000 man-hours worked including contractors was 0.0 on December 31, 2025.

 

3.10Permitting Considerations

 

The Mine operates under permit authorizations from the BLM, NDEP, NDOW, and NDWR. All operating and environmental permits, approved by the BLM, NDEP, NDOW and NDWR, are in good standing for mining operations. Table 3-2 summarizes the operating permits while Table 3-3 shows the miscellaneous permits for the property.

 

Table 3-2: Hycroft Operating Permits

 

Operating Permits Issuing Agency Number Status
Plan of Operations BLM NVN-064641 Current
Eagle Take Permit USFWS MB90099B-0 Current
Mercury Operating Permit to Construct NDEP - BAPC AP1041-2255 Current
Class I Air Quality Operating Permit to Construct NDEP - BAPC AP1041-2974 Incorporated into the Class II AQOP
Class I Air Quality Operating Permit to Construct NDEP - BAPC AP1041-3344 Incorporated into the Class II AQOP
Class I Air Quality Operating Permit NDEP - BAPC AP1041-2964 Current
Permit to Operate a Public Water System NDEP - BSDW HU-0864-12NTNC Current
Class II Air Quality Permit NDEP - BAPC AP1041-0334.05 Current
Water Pollution Control Permit-Crofoot Project NDEP - BMRR NEV60013 Current
Water Pollution Control Permit-Brimstone Project NDEP - BMRR NEV94114 Current (Application Shield)
Bioremediation Facility Permit NDEP - BMRR GNV041995-HGP15 Superseded by Water Pollution Control Permit

 

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Operating Permits Issuing Agency Number Status
Reclamation Permit NDEP - BMRR 134 In Renewal
Mining General Stormwater Pollution Prevention Permit NDEP - BWPC R300000: MSW-177 Current
Class III Landfill Waiver NDEP - BSMM SWW-346 Current
Artificial Pond Permit (Brimstone Process Ponds) NDOW HU019 – S503626 Current
Artificial Pond Permit (Crofoot Process Ponds) NDOW HU009 – 39469 Current
Artificial Pond Permit (North Process Ponds) NDOW HU022-39468 Current
Artificial Pond Permit (Stage 1 Ponds) NDOW HU022-40377 Current
General Onsite Sewage Disposal System NDEP - BWPC GNEVOSDS09 Current
Dam Safety Permit (Crofoot Process Ponds) NDWR J-273 Current
Dam Safety Permit (Brimstone Leach Event Pond) NDWR J-683 Current
Dam Safety Permit (North Leach Event Ponds) NDWR J-687 Current
Dam Safety Permit (Stage 1 Event Ponds) NDWR   Pending
Hazardous Materials Storage Permit NV State Fire Marshall 8250 Current
Special Use Permit Pershing County SUP 12-04 Current
Special Use Permit Humboldt County UH-12-04 Current

 

Table 3-3: Hycroft Miscellaneous Permits

 

Operating Permits Issuing Agency Number Status
Microwave Repeater; Sec. 29, 30 BLM NVN46292 Current
ROW Wells/Pipeline/Power Line; Sec. 3 BLM NVN46564 Current
ROW 2 Wells/Pipeline/Power Line BLM NVN46959 Current
ROW Road & Waterline (Old Man camp to Lewis) BLM NVN39119 Current
ROW Crofoot pipeline BLM NVN44999 Current
ROW 24 kV Aerial Powerline, Lewis/Floka BLM NVN54893 Current
Kamma Peak Station FCC WNER344 Current
Sulfur Mine Station FCC WNER345 Current
Winnemucca Mountain Station FCC WNER346 Current
Base Station & 45 Mobile Units FCC WNKK336 Current

 

Operating and miscellaneous permits that require annual maintenance fees are shown in Table 3-4. Fixed annual fees are required for storm water and public drinking water system permits based upon the current Nevada regulatory structure. The other annual fees are based on annual mining production, quantities and types of chemicals stored on site, existing and permitted surface disturbance, and the level of actual and permitted air emissions. The variable fees shown are based upon the 2025 operational conditions.

 

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Table 3-4: Hycroft Miscellaneous Permits

 

Permit and Fee Description Annual Amount (US$)
Air Quality Operating Permit AP1041-0334.05 Fees are incorporated into title V permit.
Air Quality Operating Permit AP1041-2255 $16,958
Air Quality Operating Permit AP1041-2964 $47,448
Reclamation Permit $37,811
Nevada Radioactive Material License $2,000
Stormwater Permit $1,000
Artificial Pond Permit $31,625
Water Pollution Control Permit NEV94114 $66,000
Water Pollution Control Permit NEV60013 $60,000
State Fire Marshall $210
Public Drinking Water System $391
Septic System Permits $750
Toxic Release Inventory Annual Fee $5,500
Nevada LP-Gas License $795
Total $270,488

 

Hycroft currently holds six Right-of-Way (“ROW”) leases with two exploration notices with the BLM, as described in Table 3-5 along with fees and renewals.

 

Table 3-5: Right-of-Way Payment and Renewal Schedule

 

ROW Number Annual Payment Amount (estimated) Payment Date Expiration Date
NVN46292 $125 01/01/2025 12/31/2048
NVN46564 $100 01/01/2025 12/31/2046
NVN46959 $610 01/01/2025 In Renewal
NVN39119 $427 01/01/2025 In Renewal
NVN44999 $279 01/01/2025 In Renewal
NVN54893 $200 01/01/2025 In Renewal

 

3.10.1Hycroft Expansion Permitting and Timelines

 

Hycroft submitted a Plan of Operations for an expansion of its heap leach facilities, open pits and waste rock facilities to the BLM in April 2010. A major modification to the State Water Pollution Control Permit was submitted in 2011 for the process components that included engineering design reports from Golder Associates. The permit modification was issued in August 2012. An amended Plan of Operations that included a rail spur, open pit expansion and processing complex was submitted to the BLM in August 2012. The BLM determined that an Environmental Assessment (“EA”) was required, deemed the Plan of Operations complete, and initiated public scoping in December 2012. In March 2013, NV Energy submitted a ROW application for the power line associated with the Hycroft Mill. The BLM determined that this action should be analyzed with the Hycroft EA. Approval was received in December 2014. The permits required to construct and operate the crushing system and to begin mill construction were received in 2012. The air quality permit for operation of a mill was submitted in December 2012, and issuance was received in late 2013.

 

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The Plan of Operations for a rail spur, open pit expansion and processing complex, that included a tailings management facility (“TMF”) and expanded Heap Leach Facility (“HLF”), was completed in December 2014, with the BLM issuance of the Record of Decision authorizing the proposed action received in January 2015. A major modification to the State Water Pollution Control Permit was submitted in 2011 for the process components that included engineering design reports from Golder Associates. The permit modification was issued in August 2012. All other permits required for the heap leach expansion have been received.

 

A Plan of Operations for an alternate TMF, mining below the water table and expanded facilities was submitted to the BLM in April 2014. The BLM determined that a Supplemental Environmental Impact Statement (SEIS) was required. In October 2019, the BLM issued a record of decision on the SEIS permitting the new TMF location, expanded facilities and deeper pit depths.

 

In December 2010, Hycroft submitted a minor modification to the NDEP which proposed increasing the permitted processing rate from 10 Mtons/a to 12 Mtons/a. This modification was approved in February 2011. In May 2011, Hycroft proposed a major modification to build a new heap leach pad on the site of the closed Lewis pad and to increase the processing rate to 30 Mtons/a. This modification was approved by the NDEP in December 2011. In January of 2012, Hycroft submitted another major modification to construct a heap leach facility on the south extent of the property. The facility was referred to as the South Heap Leach Facility (“SHLF”). Around the same time, Hycroft submitted a modification proposing to add both a north and south processing area, increasing the Brimstone and Lewis heap leach pads permitted height to 400 ft, and increasing the permitted processing rate to 36 Mtons/a of ore. Both modifications were approved by the NDEP in September 2012. Later, in December 2012, Hycroft submitted a minor modification proposing to add a Merrill-Crowe facility at the North Process Area. NDEP approved this modification in May 2013. In March of 2013, Hycroft submitted another modification to construct a combined heap leach and tailings storage facility, referred to as the South Processing Complex (“SPC”), in the same location as the previously permitted SHLF. The SPC uses the new SHLF, constructed in a horseshoe shape, to provide the embankment for the Southwest TMF located in the central portion of the new SHLF. Also, as part of this modification, Hycroft proposed the construction of a mill and related facilities for processing high-grade ore at an approximate throughput of 65,000 tons per day (“ton/d”) during Phase 1 to a final phase capacity of 132,000 ton/d. Tailings were proposed to be pumped to the TMF at the SPC. These 2013 major modifications were approved by NDEP in August 2017.

 

In September 2014, Hycroft submitted a minor modification to expand the Brimstone-North HLF to the southeast by approximately 80 acres including an additional Event Pond at the existing North Area Merrill-Crowe facility. NDEP approved these minor modifications in March 2015.

 

In April 2019, Hycroft submitted a major modification to construct a new heap leach facility named Hycroft Heap Leach Facility Stage 1 (Stage 1 HLF) north of the North Processing Facility. The Stage 1 HLF will have a storage volume of 29 Mtons and is the first stage of the larger facility (Hycroft HLF) with a storage capacity of 550 Mtons. The ultimate footprint of the Hycroft HLF will cover approximately 925 acres, with the Stage 1 footprint covering approximately 390 acres that includes ponds, channels, and roads. Of this area, 234 acres will be lined with geomembrane along with the HLF pad comprising 204 of these acres. Pregnant solution collected from the pad will be pumped to the existing North Merrill-Crowe process facility for precious metals recovery. The barren solution from the North Merrill-Crowe facility will then be returned to the top of each lift and applied over a designated cell area using a drip and sprinkler system. The major modification was approved by NDEP in July 2020.

 

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Currently, Hycroft has all permits required to restart the Mine and recently received the Federal Record of Decision for the Phase II Environmental Impact Statement supporting the life of mine (“LOM”) pit development.

 

Received Record of Decision from BLM for Environmental Impact Statement (EIS) (10-22-19):

 

Current operating plan is fully permitted
  
Existing operating permits will be amended as new facilities/infrastructure are required
  
EIS allows flexibility:
  
Expanded pits
   
Construction of a TMF to the south of the property, if needed
   
Phase 1 of the new leach pad is permitted
  
Phase 1A of the new leach pad has completed earthwork and high-density polyethylene (HDPE) liner installation. A media cover has been added to protect the porous multimedia protective layer. Collection ponds are in place. Electrical switch gear, instrumentation, and pumps are in storage and will be added during construction restart. No mineralized ore has been added to the pad. Phase 1B of the new leach pad and future phases will be planned for construction from cash flows when needed.

 

Any future expansion activities recommended in this TRS will require multiple federal, state and local permits. The USFWS will require modification to the Golden Eagle Take Permit for the NE TMF and extensions of the South (Vortex) Dump.

 

3.10.2Crofoot Heap Leach Facility Closure

 

In 2023, NDEP asked Hycroft to update the 2017 Final Permanent Closure Plan (“FPPC”). Hycroft complied with this request and a new FPPC was submitted. The updated plan includes schedule of compliance (SOC) items and incorporates current regulations. There are six items in this plan. SOC Items 1 (Stormwater Controls), 2 (Heap Leach Drain-Down Channel), 3 (Update Monitoring Plan), 4 (Water Quality Evaluation Report), SOC Item 5 (updating FPCP), and 6 (Investigation of trend for Wells SP-23, SP-24, and SP-25). NDEP has accepted and approved SOC Items 2 (Heap Leach Drain-Down Channel) and Item 3 (Update Monitoring Plan). The other items are still under review.

 

Construction of a drain-down collection system was completed in 2012. In 2024 and 2025, Hycroft completed steps to regrade the pad in preparation for closure. Hycroft will continue to re-contour the pad, as necessary for surface water management; apply medium, where required; and reseed the pad to complete the closure process. Hycroft is working in conjunction with NDEP, who will issue the final closure approval letter once these activities are reviewed and accepted.

 

3.11Social License Considerations

 

Social and community impacts have been considered and evaluated in the National Environmental Policy Act (“NEPA”) process. Potentially affected Native American tribes, tribal organizations, and/or individuals are consulted during the preparation of all plan amendments to advise on proposed projects that may influence cultural sites, resources, and traditional activities. Potential community impacts on the existing population and demographics, income, employment, economy, public finance, housing, community facilities, and community services are also evaluated during NEPA review processes. There are currently no social or community issues that materially impact Hycroft’s ability to extract mineral resources.

 

3.12Project risks and uncertainties

 

Timely filings and payments are required to maintain title and rights to claims, water rights and permits. Hycroft maintains processes and controls to ensure timely filings and payments. Changing regulations or failure to make timely filings and payments are significant risks to maintaining environmental access or ability to perform the permitted and authorized work on the property.

 

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4Accessibility, Climate, Local Resources, Infrastructure and Physiography

 

4.1Physiography

 

Hycroft is situated on the eastern edge of the Black Rock Desert and on the western flank of the Kamma Mountains between Winnemucca and Gerlach, Nevada. The site is characterized by flat, prehistoric lakebed and well-dissected topography with moderately steep slopes. Topographic relief within the project area is 1,900 feet (“ft”). The elevation ranges from 4,100 ft on the western side to 6,000 ft on the eastern side. The climate in the mine area is arid. The area receives about seven to eight inches of precipitation per year, most of it as rain in the spring and snow in the winter months. Summer daytime temperatures are 85°F to 95°F. Daily temperature ranges are extreme, usually 30°F to 35°F resulting in cool nights. Winter nights can drop to well below freezing, but daytime highs are usually above freezing. Winter snowpack is light, and snow does not normally present logistical problems. Vegetation consists mostly of sagebrush, rabbit brush, and surface grass. Scattered pinon and juniper trees occur along slopes in the higher parts of the property.

 

4.2Accessibility

 

Hycroft and its related facilities are located 54 miles west of Winnemucca, Nevada along State Road No. 49 (Jungo Road), a good quality, unpaved road. Access is also possible from Gerlach via Jungo Road, Imlay or Lovelock by dirt roads intersecting Interstate 80. Winnemucca is a commercial community on Interstate 80 where most of the Mine’s employees are likely to reside. Winnemucca is 164 miles northeast of Reno, Nevada. The town is served by a transcontinental railroad and has a small public airport and there are adequate boarding rooms and dining facilities.

 

4.3Climate

 

The climate at the Mine is classified as arid, with an average precipitation of 7.7 inches per year, most of which occurs during the winter and spring months. Winds are generally light with occasional dust or sandstorms, particularly in the spring.

 

Temperatures are moderate during the summer, ranging from 50°F at night to above 90°F during the day. Winter temperatures average 20°F at night and 40°F during the day. The average range between the highest and lowest daily temperatures is 30°F to 35°F with strong surface heating during the day and rapid nighttime cooling due to the dry air. Hycroft has not reported experiencing major delays in production due to inclement weather and is operating year-round.

 

4.4Local Resources and Infrastructure

 

Existing infrastructure at the Mine consists of the following: a truck shop, a maintenance building, a laboratory, ore crushing facilities, an administration building, and other service-related structures. Power is supplied to the site from nearby power lines that are fed directly from the main power grid and there is a modern communications system including cellular connections. Potable water is sourced from a well located approximately one mile south of the Crofoot Heap. A major east–west railway passes adjacent to the Hycroft property.

 

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Figure 4-1: Onsite Lab, Admin, Maintenance, Truck Shop, and Warehouse

 

  

Source: Hycroft, 2025

 

Figure 4-2: Crusher and Conveyor Belt Circuit

 

Source: Hycroft, 2025

 

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Figure 4-3: North Merrill-Crowe Facility

 

Source: Hycroft, 2025

 

Figure 4-4: Stage 1 Heap Leach Pad and Ponds Along Jungo Road

 

Source: Hycroft, 2025

 

The Mine is in a well-known mining jurisdiction near several towns including Winnemucca, Gerlach and Lovelock. The Mine’s workforce primarily lives in Winnemucca (Humboldt County) and Lovelock (Pershing County).

 

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Initial surveys indicated that the town of Winnemucca has the required infrastructure (short- and long-term rooming and boarding facilities, dining establishments, shopping, emergency services, schools, etc.) to support the maximum workforce and dependents. The Mine has always been successful in filling positions with qualified mining personnel from all over the country.

 

Currently, the Mine operates three production wells that are located four to five miles west of the mine, and a single potable well. These four production wells are the main sources of water for the mine site. All water rights are within the Black Rock Desert Hydrographic Basin, a recently designated basin. Water rights are shown in Table 4-1.

 

Hycroft controls sufficient land position and water rights to support its planned facilities and process water demands.

 

Table 4-1: Hycroft Water Wells and Permitted Yearly Consumption

 

Application No. Permit Diversion Limit (cfs) Annual Appropriation Limit (acre-ft) Point of Division
81228 0.4 14.83 T34N R29E S3
81226 3.2 724.79 T35N R29E S31
81225 3.2 303.43 T35N R29E S31
81227 2.0 1,448 T35N R29E S31
81224 2.0 1,448 T34N R28E S1
81408 5.4 3,890 T35N R29E S31
81409 5.4 3,890 T35N R29E S31
84477 0.3 177.9 T35N R29E S31
82274 10 4,096 T35N R29E S31
82355 3.3 2,050 T35N R29E S31
82356 5.6 3,415 T34N R28E S1
Total 40.8 21,457.95 -

 

A fully developed project will include plans to develop access and haul roads to new processing facilities, a TMF, and additional waste rock storage dumps. Furthermore, the development of a rail spur is recommended off the existing rail line for the receipt of grinding media, fuel, reagents, and other supplies.

 

A power study needs to be conducted to upgrade the existing power at the site to support a fully developed processing plant.

 

4.5Seismicity

 

In 2012, Michael W. West and Associates Inc. (“MWWAI”) completed a review of the Hycroft deterministic seismic hazard assessment (“DSHA”). MWWAI concluded that historical seismicity in the vicinity of the site is low to moderate with no relation to mapped faults. No faults in the project area are classified as “active/capable” based on an unequivocal association of instrumentally recorded earthquakes in the last approximately 50 years. MWWAI stated that a comparison of the United States Geological Survey (“USGS”) national probabilistic seismic hazard model to deterministic and probabilistic floating earthquake peak ground accelerations (“PGAs”) show reasonable agreement. MWWAI recommends the use of the deterministic and probabilistic PGAs presented in the DSHA.

 

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5

History

 

5.1Regional History

 

The earliest recorded mining in the Sulfur District, where the Mine is located, began in the late 1800s following the discovery of significant native sulfur deposits (Couch and Carpenter, 1943; Wilden, 1964). Mining of native sulfur was sporadic from 1900 to 1950 with over 181,488 tons of sulfur ore, grading approximately 20-35% sulfur, mined and milled (McLean, 1991).

 

In addition to sulfur, high-grade Ag mineralization, consisting of nearly pure seams of cerargyrite (AgCl), was discovered in 1908 at Camel Hill (Vandenburg, 1938). Assays up to 3,439 oz/ton Ag and 0.362 oz/ton Au were reported (Jones, 1921). Ag mining ceased in 1912 with an estimated 165,375 Ag ounces produced. Minor Ag mining also occurred along the East Fault at the Snyder Adit, and Ag samples as high as 66 oz/ton (Friberg, 1980) and 29 oz/ton (Bates, 2001) were reported.

 

During the First World War (1914 to 1918), three 6 to 8 ft wide veins of nearly pure alunite were mined in the southern part of the Sulfur District (Clark, 1918). In 1931, several hundred tons of alunite were mined as a soil additive (Fulton and Smith, 1932). Vandenburg estimated that 454 tons of alunite was shipped to the west coast to be used as fertilizer (Vandenburg, 1938). From 1941 to 1943, cinnabar was mined from small pits in the exposed acid leach zone (Bailey, 1944). Total mercury production during this period is estimated at 1,900 lbs. (McLean, 1991).

 

5.2Property Exploration History

 

In 1966, the Great American Minerals Company began extensive exploration for native sulfur in the regional area of the Mine. Approximately 200 shallow holes were drilled, and numerous trenches were dug (Friberg, 1980). In 1974, Duval drilled 20 holes on the property in search of a Frasch-type sulfur deposit (Wallace, 1980). Duval found no evidence of a sulfur deposit at depth but did report elevated Au and Ag values. Duval drilled two core holes (DC-1 and DC-2) and 18 rotary holes (DR-3 through 20) (Ware, 1989).

 

In 1977, the Cordex Syndicate mapped and rock-chip sampled the property. They concluded that there is potential for bulk tonnage as a low-grade precious metal deposit. In 1978, Homestake became interested in the property, recognizing similarities with the McLaughlin hot springs deposit in California. Homestake completed surface sampling and exploration drilling during 1981-1982, and although successful in defining an oxide gold/silver mineral deposit, they forfeited the property in 1982.

 

Hycroft gained control of the district in 1985 and drilled 3,212 exploration holes, totaling 965,552 ft, between 1985 and 1999. The bulk of this drilling was shallow and focused on oxide Au mineralization at Central, Bay and Brimstone.

 

In 2005, Canyon Resources completed 33 drillholes totaling 13,275 ft of RC drilling. These were completed primarily in the Brimstone pit area.

 

Hycroft commenced systematic exploration and resource development drilling starting in 2006. Drilling was focused on oxide resource delineation, sulfide resource definition, sulfide exploration, condemnation drilling for facilities, Ag data and both geotechnical and metallurgical core samples. Between late-2006 and August 31, 2016, Hycroft completed 1,970 exploration holes, totaling approximately 1.45 million ft.

 

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A combination of rotary, RC and core drilling techniques has been utilized to verify the nature and extent of mineralization. Most samples have been collected using RC drilling methods on 5 ft sample intervals. RC drilling utilizes 4.5- to 5.5-inch tooling. Deeper drilling is conducted with diamond drilling, using PQ, HQ and NQ tooling. This practice continued through 2013. Since 2013, an RC drilling program was completed in 2014, and a metallurgical core program with the six drillholes was completed in 2017. Various protocols applied to drilling by Hycroft are consistent with industry standards and the resulting data is of good quality for use in the Hycroft model. Shallow drillholes to sample heap material were completed with sonic coring. The 2018 sonic drilling program was limited to 56 vertical holes in sulfide stockpiles and did not include in-situ alluvium or bedrock material. While these were not used for interpolation of in-situ rock, they were applied to estimate grades in fill material.

 

During 2021 through 2024, Hycroft drilled 261 holes, 105 in 2021, 85 in 2022, 49 in 2023 and 21 in 2024. Most of the 2021 drilling was diamond core that was used for metallurgical testing and assay. The 2022 and 2023 drilling focused on extending mineralization and upgrading areas from Inferred to Measured and Indicated classification. The 2024 drilling focused on high-grade mineralization in Brimstone and Vortex.

 

5.3Production

 

Mining at the Mine began in 1983 with a small heap leach operation known as the Lewis Mine. In 1987, Vista acquired the Lewis Mine and in 1988, they acquired the Crofoot Mine. The Mine was comprised of various open pits on the property (e.g., the Bay, South Central, Boneyard, Gap and Historic Cut-4 pits along the Central Zone and Brimstone) and produced approximately 1.2 million ounces (“Moz”) of Au and 2.5 Moz of Ag from 1983 to December 1998 when the operations were suspended due to low Au prices at the time (<$300/oz). An additional 58,700 ounces of Au were produced from the leaching and rinsing of the heap leach pads from 1999 through 2004, after the mine had been placed on a care and maintenance program. The remaining leasehold interest in the Lewis property was purchased by Vista in December 2005, in consideration of the US$5.1 M payment, resulting in the elimination of the 5% NSR royalty on Au and 7.5% NSR royalty on Ag.

 

Further information on the production history of the Mine comes from Hycroft’s internal documents. Ore from the Lewis Mine was crushed and stacked on the Lewis leach pads in the north-central part of the Sulfur District. Approximately 259.2 Mtons of ore of a gold grade averaging 0.014 oz/ton were mined from 1983 to 2019 beginning with ore mined from the Lewis Mine followed by ore mined from the Bay, South Central, Boneyard, Gap and Historic Cut-4 pits, and finally the north end of the Brimstone pit producing over 2.082 Moz of Au.

 

The Crofoot leach pad (Pads 1 and 2) were constructed in 1987, and Pad 3 in 1992. Ore was placed on Pad 1 from 1988 to 1997, on Pad 2 from 1989 to 1997, and on Pad 3 from 1993 to 1997. Solutions from these pads were treated in the Crofoot Merrill-Crowe plant located on the northeast side of Pad 1.

 

Production from the Brimstone pit was placed on the Brimstone pad (Pads 4 and 5) as run-of-mine (“ROM”). Pad 4, constructed just south of the old Lewis pad, was completed in 1996. Loading of Pads 4 and 5 commenced in October 1996 and July 1997, respectively. A 2,800 gallon per minute Merrill-Crowe leach solution plant (the Brimstone Plant) was completed and put into operation in February 1997. The plant treated solutions from Pad 4. Pad 5 solutions were treated in the older Crofoot plant.

 

In May 2007, the Nevada-based holdings of Vista were spun out into Allied Nevada Gold Corp. The Mine was included as part of the transfer of ownership allowing Allied Nevada to explore, expand, and develop the resources at Hycroft.

 

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In September 2007, Allied Nevada’s Board of Directors approved the reactivation of the Mine, and a year later in December 2008, the Mine had produced its first doré which was shipped to an offsite refinery for final processing, yielding Au and Ag bullion. Allied Nevada received a construction permit for the Brimstone Refinery in 2008, and construction was completed in June of 2009. By the end of 2009, the Mine was achieving the forecasted ore production capacity. In 2010, the mine began an expansion program which included the construction of a 21,000 gal/min Merrill-Crowe processing plant, a three-stage crushing facility and upgrades to their solution pumping capacity. With the construction of the North leach pad complete in 2013, the total leach pad surface area at the Mine site had increased to over 20 million square ft including the Brimstone and Lewis leach pads. Allied Nevada filed for bankruptcy on March 10, 2025, and active mining ceased in June 2015 due to low metal prices. Leaching of the mined ore continuing through 2018.

 

On October 22, 2015, Allied Nevada emerged from its financial restructuring and changed its name to Hycroft Mining Corporation. On May 29, 2020, Hycroft Mining Corporation completed a business combination with a publicly trade special purpose acquisition company (“SPAC”). Following the closing of the transaction, the SPAC changed its name to Hycroft Mining Holding Corporation.

 

In late 2018, Hycroft began construction of Phase 1 of the Jungo Leach Pad to expand process capacity for anticipated heap leach material. Additionally, Hycroft began preparing the mine for a restart. Active mining began again in April 2019 to November 10, 2021, transition ore was placed on the existing leach pads. Sulfide materials, when encountered during active mining, were set aside for future processing.

 

In November 2021, Hycroft suspended mining operations to refocus resources on metallurgical test work and exploration. Final construction of Phase 1 of the Jungo Leach Pad was suspended, and protective media cover material was placed on the multimedia liner. Electrical, instrumentation, and pumping equipment was placed in covered storage for a future restart.

 

The annual sales produced from the Mine’s heap leach operations over years 2019 through 2022 was 107,258 oz Au and 629,904 oz Ag. There have been no gold or silver commodity sales since 2022.

 

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6Geological Setting, Mineralization, and Deposit

 

6.1Geological Setting

 

Section 6 has been written and updated by Alex Davidson, Vice-President of Exploration of Hycroft Resources and Development LLC and approved by IMC (Independent Mining Consultants). IMC is the qualified organization for this section.

 

The Hycroft deposit is a low-sulfidation, epithermal, hot springs system that contains Au and Ag mineralization. Radiometric dating of adularia (potassium feldspar) indicate that the main phase of Au and Ag mineralization formed approximately four million years ago (Ebert, S.W., & Rye, R.O. (1997)) when hydrothermal fluids were fed upward along high angle, normal faults. Low-grade Au and Ag mineralization was co-deposited with silica and potassium feldspar throughout porous rock types.

 

A subsequent drop in permeability, due to sealing of the system, led to over pressuring and subsequent repeated hydrothermal brecciation. Additional precious metal mineralization was deposited during this event as breccia zones, veins, and sulfide flooding.

 

Au and Ag mineralization was followed (0.7 to 4.0 million years ago, (Ebert, S.W., & Rye, R.O. (1997)))1 by an intense event of high sulfidation acid leaching of the mineralized volcanic rocks coincident with a regional water table drop. This allowed steam heated sulfur gases to condense into sulfuric acid and leach the upper portion of the mineralized rocks.

 

Oxidation of sulfide mineralization occurs to variable depths over the deposit, depending upon proximity to faults, extent of acid leaching, and depth to water table. Sulfide content through the deposit is variable from 0% to 20%.

 

6.1.1Regional Geology

 

The Mine is located on the western flank of the Kamma Mountains in the Basin and Range physiographic province of northwestern Nevada. The Kamma Mountains were formed during Miocene to Quaternary Epoch from the uplift of Jurassic basement rock and emplacement of Tertiary volcanic and sedimentary rocks. The stratigraphy along the western flank of the range is down dropped to the west, along a series of north to northeast striking normal faults. These faults served as conduits of hydrothermal fluids that deposited the Hycroft mineralization.

 

6.1.2Local Geology

 

The Hycroft property consists of Tertiary to recent age, fault-controlled, low-sulfidation Au zones that occur over an area measuring approximately three miles in a north–south direction by two miles in an east–west direction. The zones are hosted in volcanic rock eruptive breccias, flows and conglomerates associated with the Tertiary Kamma Volcanics and sand to conglomeratic debris flows associated with the Tertiary Sulphur Group (“TSG”).

 

Younger rocks at the mine are Tertiary conglomerate, siltstone and fanglomerate of the Sulphur Group (locally termed “Camel Conglomerate”). These rocks are comprised of sediment eroded from the underlying Kamma Volcanics and Jurassic Auld Lang Syne (“ALS”) Formation. The Sulphur Group is divided into three main units: a clast-supported coarse conglomerate, a matrix-supported conglomerate, and an underlying tuffaceous lake sediment. This unit outcrops throughout the mine site with increasing thickness to the west.

 

The older Kamma Group is exposed throughout the Kamma Mountains east of the Central Fault. It underlies the Camel Conglomerate (“TCM”). The volcanic package is comprised of siliceous to intermediate tuffs, coarse grained volcanic clastics, fanglomerates, eruption breccias and massive to flow banded rhyolites.

 

 

1Secondary precious metal enrichment by steam-heated fluids in the Crofoot-Lewis hot spring gold -silver deposit. 

 

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The Jurassic ALS Formation underlies the Kamma volcanic package. This formation consists of a thin bedded to laminated siltstone, with calcite cementing. ALS is exposed approximately three miles east of the deposit and is encountered only at depth in drilling at Hycroft. A generalized stratigraphic column for the Hycroft deposit area is presented in Figure 6-1. This stratigraphic column illustrates the formations of volcanic origin that host the deposit with notations for lithologies in each formation. TCM of the TSG has been broken out as a separate rock, in addition to those shown in Figure 6-1. The sub-group of the TSG references lakebed sediments that are distinct from the TCM.

 

Figure 6-1: Stratigraphic Column for Hycroft Deposit Area

 

Source: SRK, 2019

 

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Six major north-northeast trending, west dipping, normal fault zones appear to broadly control the distribution of alteration as shown in Figure 6-2. From west to east, these fault zones are referred to as the Range, West Splay, Central, Break, Albert, and East Faults. These major structures down-drop stratigraphy and affect the distribution of alteration and mineralization. A post-mineral basin bounding fault (not pictured) appears to border TCM and the adjacent Pleistocene Lahontan Lake sediments in the Black Rock Desert. Based on geophysics, this structure is approximately one to two miles west of the mine site. There are several east–west trending structures that appear to provide post-mineral offset to the deposit. These form a series of horst and grabens within the deposit footprint.

 

Figure 6-2 is a mine grid north-looking section through the Mine showing structures and volcanic rock stratigraphy. There are also several other parallel fault zones that may have a significant impact on the localization of mineralization. The depth of oxide and mixed sulfide/oxide Au and Ag mineralization vary considerably throughout the area. Alteration at the deposit is dominated by acid leaching, silicification, argilization, and propylitization.

 

Figure 6-2: Simplified East–West Cross Section through the Hycroft Mine – Section 40600 N

 

Source: Hycroft, 2025


 

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6.2Mineralization and Alteration

 

The Hycroft deposit is broken into five major zones based on geology, mineralization, and alteration. These include Brimstone, Vortex, Central, Bay, and Camel. The boundaries are typically major faults, namely Break, East, and Ramp Faults. Continuity is structurally controlled and disseminated in each of these areas.

 

Detailed geologic work by previous owners at Hycroft identified several hydrothermal alteration events. However, for resource estimation purposes, the following four alteration types have been interpreted and assigned to the block model:

 

Acid Leach – Associated with the upper portion of the epithermal vent. Native Sulfur is common in this area and the original protolith has been obliterated with a white clay alteration.
  
Propylitic – Propylitic altered material is generally found in the volcanic rocks of the Kamma Mountains. Although it is occasionally interpreted within the mineralized zone of the deposit.
  
Argillic – A pervasive alteration of both TCMs and the Kamma Volcanics clay minerals have replaced the original potassium feldspars and other minerals.
  
Silicic – Silica flooding is associated with the mineralization processes at Hycroft.

 

Propylitic is generally barren or nearly so. It has been lumped with the argillic alteration units for grade estimation and assignment.

 

Silicic alteration generally has better grade than the surrounding argillic and is mechanically more robust.

 

Oxidation has occurred across the deposit to variable depth depending on the structural preparation and available acidic ground water. The oxidized material has been the historical ore for heap leaching at Hycroft. This study includes ROM leaching of low-grade mineralization and flotation of mineralization with sufficient pyrite and other sulfides to generate a gold and silver rich concentrate for further processing.

 

6.2.1Brimstone

 

Brimstone is approximately ¾ mile wide (E-W) and approximately 1 mile long (N-S) and sits between the East Fault and Albert Fault. The stratigraphy (depth) at Brimstone includes up to 100 ft of alluvium, underlain by Camel Conglomerate rocks (0 ft to 400 ft), and Kamma volcanic rocks. ALS has been drilled at depth and is in fault contact (East Fault) as well as unconformably with the overlying Kamma Volcanics. The Brimstone deposit is hosted primarily by Kamma volcanic rocks in the hanging wall of the East Fault. The volcanic rocks are principally eruption breccias, tuffs, rhyolites, and volcanic rocks proximal to vents, and overlie deformed and metamorphosed shale, sandstone, and siltstone of the ALS group.

 

At Brimstone, the East Fault is a north-northeast striking, west dipping, normal fault with repeated episodes of movement, including approximately 150 ft to 200 ft of alluvial offset. Where exposed in the Brimstone pit, the fault clearly shows steep normal movement, with slickensides that plunge 80° to 85°. At depth the fault shallows to 45° to 60° and may merge with the Central and Break Faults. The fault may have originally served as a conduit to hydrothermal fluids.

 

North of the Brimstone deposit, the east–west trending Ramp Fault appears to down-drop favorable stratigraphy. Condemnation drilling of the leach pad to the north has shown only local zones of weak Au and Ag mineralization. To the south, the Brimstone Zone transitions to the Vortex Zone, with no apparent change in stratigraphy, but changes to alteration zonation.

 

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Host rocks were highly altered by at least four phases of alteration. The relatively porous conglomerate and breccias were preferentially acid leached by late stage steaming hydrothermal acid vapors. Acid leach alteration extends to depths of 700 ft in some areas of the Brimstone deposit indicating that the water table was present below the base of the acid leached zone. A siliceous layer (basal acid leach), up to tens of feet thick, occurs at the base of the acid leach material. Underlying the acid leaching is a layer of hydrothermal clay alteration, followed by silica potassium feldspar alteration. Pervasive silicification, veining and hydrothermal brecciation are generally found in the rhyolites and breccias.

 

Zones of silicification of varying thickness, oriented parallel to the East Fault, are present in the footwall zone. Alteration extends approximately 1,000 ft from the fault into the footwall, with pervasive silicification and quartz veining dominant.

 

Au and Ag are spatially associated with fracture and breccia-controlled chalcedony sulfide mineralization. A subsequent acid alteration event produced the current distribution of oxidized and transition sulfide/oxide ore. The lower acid leach material hosts Au and Ag mineralization, as does the underlying silicified and veined volcanics.

 

Drilling through 2024 has shown that high-grade silver mineralization hosted in quartz/clay veins extends to a depth of over 1,800 ft in the Brimstone Zone. The high-grade silver veins have little to no association with gold, indicating gold and silver were deposited at different times. Petrography with support from geochemistry indicates some of the high-grade silver mineralization is potentially related to an intermediate sulfidation system and proximal to a magmatic fluid source. Mineralization thickness of the high-grade is highly variable but generally less than 100 ft thick (true width) and the broader overall Brimstone mineralization is 200 to 1,500 ft thick, and both mineralization styles remain open to the west toward the Break Fault. The main phase of mineralization in the high-grade silver is naumannite and argentotetrahedrite with inclusions of chalcopyrite, clausthite, and galena.

 

6.2.2Vortex

 

Vortex area is approximately ¾ mile wide (E-W) and approximately 1 mile long (N-S) and sits east of the Albert Fault. The stratigraphy (depth) in the Vortex Zone is correlative with those at the Brimstone Zone immediately to the north. Camel Conglomerate is underlain by tuffs, volcanic clastics, fanglomerates, and rhyolites of the Kamma Volcanics. The ALS is present in the footwall of the East Fault and appears to be in stratigraphic contact with the Kamma Volcanics.

 

The upper elevation at Vortex is hydrothermally clay (kaolinite) altered. Acid leaching is less prominent than in Brimstone and is focused primarily along the East Fault. Strong silicification has been observed to depths greater than 1,500 ft. At least four hydrothermal mineralizing events are present, as evidenced by crosscutting vein and breccia relationships. Propylitic and/or clay alteration extends outboard of the silicification. The alteration within the Brimstone pit is depicted in Figure 6-3.

 

The mineralization at Vortex is of both vein and disseminated types, with brecciated and altered rhyolite rocks and volcanic clastics acting as favorable hosts. In addition to Au mineralization, high-grade Ag has been encountered at Vortex; with values ranging from 10 to 647 oz/ton. The predominant Ag minerals are miargyrite, and selenostephanite with inclusions of argentotetrahedrite, naumannite occurring both in veins, disseminated and coarse grains along fractures. Petrography and geochemistry support the low-sulfidation epithermal style of mineralization.

 

Oxide mineralization is present at a depth of approximately 500 ft below surface, with sulfide mineralization extending to 2,500 ft below surface. Mineralization thickness (true width) is 1,000 to 1,800 ft thick. Banded quartz veins with both high- grade Ag and Au have been noted in core. Drilling to date indicates that the high-grade zones are both high angle banded quartz veins and a more extensive flat lying, massive quartz zone containing visible pyrargyrite and miargyrite.

 

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Figure 6-3: Vortex Alteration Cross-Section – 40600 N

 

Source: Hycroft, 2025

 

6.2.3Bay

 

Bay area is approximately ¾ mile wide (E-W) and approximately 1.5 miles long (N-S) and sits north of the Camel Pit. Mineralization in Bay is hosted by gentle, west dipping Camel Conglomerate. Both clast-supported and matrix-supported conglomerate rocks host mineralization. The basal rock type is tuffaceous lake sediments, composed of fine-grained clay with minor layers of gravel and conglomerate extending to a depth greater than 1,100 ft. Mineralization is primarily bedding controlled, with the Range and Central Faults as the main feeders. The Break Fault may also have zoning controls but is poorly drilled in this zone. Mineralized siliceous hot spring sinters have been historically mined indicating that this deposit represents the upper-most levels of a hot spring hydrothermal system.

 

The predominant alteration type at Bay is silicification. Acid leach alteration in the area is relatively minor and occurs along high angle structures as seen in Figure 6-4. Clay alteration of the underlying lacustrine sediments is also noted in limited drillholes and is Illite-smectite dominated. Strong oxidation is present in the upper portion of the silicified zone.

 

Au and Ag mineralization is associated with flat lying Camel Conglomerate, above the lacustrine lake sediments. Mineralization thickness (true width) is 20 ft to 250 ft thick at Bay and 50 ft to 300 ft thick at Boneyard. This zone transitions into the upper zone of mineralization at Central. Bay and Boneyard remain open to the north and east.

 

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Figure 6-4: Bay Geologic Cross-Section at 50300-N

 

Source: Hycroft, 2025

 

6.2.4Central

 

Central area is approximately ½ mile wide (E-W) and approximately 1 mile long (N-S) and sits between Central Fault and West Splay Fault. Central geology is similar in nature to that of Bay, with mineralization and alteration fed by high angle faults and fractures, with dominant lateral fluid flow through the porous conglomerate rocks of the Sulphur Group. Camel Conglomerate units are underlain by lacustrine sediments. However, the lacustrine units thin dramatically to the south, with less than 50 ft of the material noted south of Historic Cut-4 Pit.

 

The Central fault movement is unknown, but extends at least 2,000 ft, with recent reactivation in the quaternary (50–150 ft), as demonstrated by offset in the alluvium. The Range Fault to the west may provide an additional boundary, although drill data is limited at this time. Alteration along the Central Zone is consistent with the alteration found at Bay. Acid leach alteration is stronger and more widespread than at Bay and is extensive in the southern portion of the zone. The acid leaching overlies silicified conglomerate rocks, except along the immediate trace of the Central Fault where silicification dominates as the alteration type as seen in Figure 6-4. Acid leach material has mostly been mined through and very little still exists in this area. Oxidation extends downward approximately 400 ft. Underlying the silicification and acid leaching are illite-smectite clay altered and clay dominant lacustrine sediments. Hot spring sinter deposits have not been observed.

 

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Au and Ag mineralization is associated with favorable stratigraphic horizons in the Camel Conglomerate, with an upper and lower zone noted in drilling, separated by a north–south striking, east dipping clay layer. Mineralization remains open to the west, past the Range Fault, and at depth (>1,400 ft). Mineralization thickness (true width) in the upper zone is 50 ft to 300 ft thick, while the lower zone ranges from 300 ft to 1,200 ft thick and remains open at depth. The mineralization zone is contiguous to the Vortex and Brimstone Zones to the east, and the Camel Hill/ Historic Cut-5 Pit zones to the south.

 

6.2.5Camel

 

Camel area is approximately ¾ mile wide (E-W) and approximately ½ mile long (N-S). Conglomerate is the dominant lithology at Camel. The conglomerates appear to extend to depth in this zone, with only thin lake sediments drilled to date. The lack of lake sediments can be attributed to either the Camel Fault or facies changes along a shoreline. The Camel Fault is an east–west trending fault, with down-drop to the south, which is presently poorly defined by drilling.

 

Alteration in the Camel area is predominantly comprised of silicification and clay alteration. Hydrothermal clays, overlying silicified conglomerate rocks, and basal illite-smectite clay altered rocks are present. Acid leaching in the area is relatively minor, especially with respect to the intensity and amount in the Central Zone area immediately to the northeast.

 

Mineralization in Camel is hosted by conglomerate rocks and occurs as both disseminated Au and Ag associated with pyrite and marcasite, and higher-grade veins, including Ag bearing pyrargyrite veins. Mineralization thickness (true width) is 200–1,100 ft thick, extends to depths greater than 1,400 ft, and remains open at depth. Oxidation extends to depths greater than 200 ft and an area of intense oxidized mordenite alteration is present between the Historic Cut-5 Pit and Camel. Mineralization remains open to the south, west and at depth. Mineralization is also open to the west of Camel and to the south towards Hades Fault.

 

6.3Deposit Types

 

The Hycroft deposit is generally an epithermal, low-sulfidation hot springs deposit (Figure 6-5). Au and Ag mineralization are noted as both disseminated and vein controlled.

 

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Figure 6-5: Generalized Epithermal Diagram

 

Source: Buchanan, 1981 and modified by Corbett Greg & Leach, Terry, 1998

 

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7Exploration

 

7.1Exploration

 

Section 7 has been written and updated by Alex Davidson, Vice President of Exploration of Hycroft and approved by IMC. IMC is the qualified organization for this section. Hycroft has conducted geophysical surveys, soil and rock-chip sampling programs, field mapping, historical data compilation, and regional reconnaissance at the site. These efforts are designed to improve the understanding of known mineralization, as well as provide data for further exploration of the greater property position.

 

7.2Geophysics

 

The land position has been surveyed with both gravity and induced polarity (IP) geophysical techniques by Hycroft. The current ground-based gravity survey covers approximately 130 square miles, centered on the mine site. Gravity indicates several structural features and density changes that offer potential exploration targets.

 

Ground induced polarization (“IP”) surveys were run over the mine site and Vortex in 2007 and extended outward in 2011 to cover approximately 24 square miles. The survey results focus on chargeability anomalies, that potentially identify sulfide material (> approximately 1.5%) at depth, and resistivity anomalies, that potentially identify silicification at depth. Results have identified and confirm additional exploration targets suggested by the other geophysical methods.

 

An additional 56-line kilometers of IP were collected in four phases during the 2023 and 2024 exploration seasons which extended several of the lines from the previous surveys. The data from the new IP lines were incorporated into Voxel models which included historical IP data. The results from the survey focused on both chargeability and resistivity anomalies. Field mapping was historically and is currently carried out in all active mine areas. Mapping focuses on structure, bedding, joints, lithology, and alteration. The near mine data is incorporated into the three-dimensional geology model, while the regional work is focused on defining exploration targets for future drilling. A regional geology map covering the land position was compiled in 2012. Regional exploration data from Homestake, LAC Minerals, USX, HRDI, and others has been compiled from both in-house and public data sources. Approximately 250 drillholes, various soil and rock chip locations and results, and various field maps have been identified at present.

 

In 2022 a hyperspectral imaging flyover of the Hycroft was conducted by SpecTIR Advanced Hyperspectral Solutions. Both longwave infrared (“LWIR”) and shortwave infrared (“SWIR”) imaging were collected with the intent of helping identify key minerals on the surface to focus reconnaissance mapping and soils programs. Total flyover grid was 1,200 sq kilometers.

 

7.3Soil Sampling

 

A soil sampling grid was conducted over the Vortex and Brimstone areas historically (1,797 samples) and was extended approximately 5,200 ft north and 29,600 ft south of the mine in 2011–2012 (1,834 samples). The soil sampling program was conducted primarily along the East Fault exposure, which is a primary ore-controlling feature at Vortex and Brimstone. Results, using Au, Ag, arsenic, and antimony, indicate potential exploration targets to the south of the Vortex area. At present this work has identified several target areas. Au values range from 0 to 0.027 oz/ton, while Ag values range from 0 to 3.7 oz/ton. Soil samples are taken on an evenly spaced grid (approximate 100-meter grid spacing), and screened for coarse material and wind-blown material, resulting in a fraction between 2 mm and 180 µm being prepped for analysis. These samples are considered representative of local soil geochemistry and are used to guide the regional exploration effort.

 

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7.4Rock-chip Sampling

 

Rock-chip sampling has been conducted both historically in the active mine area, and on a regional basis (2007–present). A database of 2,416 samples has been compiled, covering the greater land position. Using Au, Ag, arsenic, and other elements, exploration targets have been developed both north and south of the current mine. Rock-chip samples have been taken on most outcrops, with a focus on alteration and potential mineralization. These samples are used as a guide to exploration and are point samples only.

 

An additional 206 rock-chip samples were collected in the 2023 and 2024 exploration season within the mine area and immediately east of the mine area. The gold values include 22 samples with greater than 0.03 oz/ton Au; two samples with greater than 0.23 oz/ton Au. These samples were collected in mineralized structures in the Bay Pit highwall. Silver values include 16 samples with greater than 0.58 oz/ton Ag; two samples with greater than 5.9 oz/ton Ag (maximum 15.2 oz/ton Ag). These samples were collected in mineralized structures in the Brimstone pit highwall and were not collected on a grid.

 

7.5Drilling

 

7.5.1Introduction

 

The Hycroft drill history covers the period from 1982 through 2024 and includes 6,024 holes, representing 2,814,546 ft of drilling. Some of those holes are water wells or are outside the resource model area and were not applied to mineral resource estimation. The drillhole collar locations are shown in Figure 7-1. At this time, there are 5,813 drillholes in the resource model area of which 188 have been drilled to define stockpiles or the Crofoot leach pad. Section 11 provides a more detailed breakdown of the amount of drilling and assaying used in modeling.

 

7.5.2Exploration Drilling

 

Exploration drilling was started in 1974 by Duval Corporation, which was evaluating the property for a Frasch-type sulfur deposit and the copper potential. Although native sulfur appeared to be limited to the acid leach zone, Au and Ag mineralization was discovered at depth, with the deepest hole completed to 2,000 ft. Duval concluded that the property did not have large scale sulfur potential. Twenty drillholes (9,726 ft) were completed on the project. Hycroft does not have access to the Duval Corporation drilling data and therefore is not a part of the Hycroft database.

 

Homestake (1982), using their McLaughlin deposit as a model, completed 96 RC drillholes totaling 16,537 ft, primarily in the Bay and Boneyard areas. Shallow oxide Au mineralization was discovered, but Homestake declined the opportunity. Crofoot and American Slag then proceeded to acquire the property rights and initiated small-scale oxide heap leach mining at Central and Bay in 1983. Homestake also completed 8 core holes during this timeframe, but collar location data has not been located.

 

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Hycroft gained control of the district in 1985 and drilled 3,212 exploration holes, totaling 965,552 ft, between 1985 and 1999. The bulk of this drilling was shallow and focused on oxide Au mineralization at Central, Bay and Brimstone.

 

In 2005, Canyon Resources completed 33 drillholes totaling 13,275 ft of RC drilling. These were completed primarily in the Brimstone pit area.

 

Hycroft commenced systematic exploration and resource development drilling starting in 2006. Drilling was focused on oxide resource delineation, sulfide resource definition, sulfide exploration, condemnation drilling for facilities, Ag data and both geotechnical and metallurgical core samples. Between late-2006 and August 31, 2016, Hycroft completed 1,970 exploration holes, totaling approximately 1.45 million ft.

 

A combination of rotary, RC and core drilling techniques has been utilized to verify the nature and extent of mineralization. Most samples have been collected using RC drilling methods on 5 ft sample intervals. RC drilling utilizes 4.5- to 5.5-inch tooling. Deeper drilling is conducted with diamond drilling, using PQ, HQ and NQ tooling. This practice continued through 2013. Since 2013, an RC drilling program was completed in 2014, and a metallurgical core program with six drillholes was completed in 2017. Various protocols applied to drilling by Hycroft are consistent with industry standards and the resulting data is of good quality for use in the Hycroft model. Shallow drillholes to sample heap material were completed with sonic coring. The 2018 sonic drilling program was limited to 56 vertical holes in sulfide stockpiles and did not include in-situ alluvium or bedrock material. While these were not used for interpolation of in-situ rock, they were applied to estimate grades in fill material.

 

During 2021 through 2024, Hycroft drilled 260 holes, 105 in 2021, 85 in 2022, 49 in 2023 and 21 in 2024. Most of the 2021 drilling was diamond core that was used for metallurgical testing and assay. The 2022 and 2023 drilling focused on extending mineralization and upgrading areas from Inferred to Measured and Indicated classification. The 2024 drilling focused on high-grade mineralization in Brimstone and Vortex.

 

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Figure 7-1: Drill Collar Location Plan

 

Source: Hycroft, 2025

 

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Table 7-1: Drilling from 2023 and 2024 Supporting an Updated Mineral Resource Estimation

 

Hole ID Northing Easting Elevation
(m-asl)
Hole length (ft) Inclination (deg) Azimuth
(deg)
H23C-5767 23022.532 39788.972 5050.094 1000 -57.98 243
H23C-5768 23097.466 39986.601 5048.798 1020 -57.98 243
H23C-5769 19563.12 40199.23 4458.06 1750 -57.98 243
H23C-5770 19024.77 40418.99 4239.71 1887 -57.98 243
H23C-5776 18426.95 40800.25 4361.54 1629.5 -57.98 243
H23C-5778 25545.11 36956.82 5616.41 1000 -57.98 243
H23C-5780 25984.36 36976.45 5575.68 605 -57.98 243
H23C-5781 25980.93 36976.25 5575.86 753 -57.98 243
H23R-5747 22189.79 39295.821 5001.41 1300 -70 90
H23R-5748 17122 38400.01 4606.39 1300 -70 90
H23R-5749 17178.57 38589.8 4598.47 1300 -70 90
H23R-5750 17078.89 38776.26 4598.543 1400 -70 90
H23R-5751 17039.71 38669.56 4599.205 1760 -70 90
H23R-5752 17039.97 38669.7 4599.259 1400 -70 90
H23R-5753 22119.91 42749.64 4479.94 1200 -70 90
H23R-5754 21510.24 41418.17 4501.49 1250 -70 90
H23R-5755 16516.25 37642.36 4406.38 800 -70 90
H23R-5756 16369.51 38282.53 4302.76 1100 -70 90
H23R-5757 16902.9 38592.574 4597.643 1200 -70 90
H23R-5758 16916.07 38779.44 4599.196 1400 -70 90
H23R-5759 17064.069 38765.321 4599.206 1300 -70 90
H23R-5760 22545.27 42526.38 4617.74 1500 -70 90
H23R-5761 22540.37 42621.83 4619.23 1500 -70 90
H23R-5762 16878.68 40805.17 4439.201 1510 -70 90
H23R-5763 17117.9 40800.38 4448.28 1700 -70 90
H23R-5764 17366.39 40800.14 4433.93 1720 -70 90
H23R-5765 21362.57 41350.61 4508.29 1250 -70 90
H23R-5766 21642.38 40908.35 4653.27 1500 -70 90
H23R-5771 22375.51 42362.41 4619.92 1210.4 -70 90
H23R-5773 22579.05 44400.47 4834.02 1380 -70 90
H23R-5774 22577.06 44400.39 4834.09 1500 -70 90
H23R-5784 16389.27 37693.98 4375.49 950 -70 90
H23R-5785 16130.29 37479.09 4343.28 750 -70 90
H23R-5786 16212.63 37860.99 4357.13 800 -70 90
H23C-5787 25261.92 36571.14 5560.73 800 -57.98 243

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 48

 

Hole ID Northing Easting Elevation
(m-asl)
Hole length (ft) Inclination (deg) Azimuth
(deg)
H23C-5777 26047.99 37510.26 5710.02 659 -57.98 243
H23C-5779 25048.82 36226.86 5511.94 610 -57.98 243
H23C-5790 22137.378 42732.949 4481.43 1222 -57.98 243
H23C-5794 26978.764 38048.934 5725.895 1625.5 -70 90
H23C-5795 22368.307 42211.245 4615.752 1205 -70 90
H23R-5775 22107.49 41546.68 4597.67 1378 -70 90
H23R-5782 22417.57 41989.33 4611.14 1200 -70 90
H23R-5792 19737.808 47981.098 4592.636 450 -70 90
H23C-5788 22124 42755 4480 785 -57.98 243
H23C-5789 21501.12 41405.63 4501.13 1260 -57.98 243
H23C-5796 14219.804 30051.704 5258.447 564 -70 90
H23C-5797 14216.243 30054.634 5258.395 421 -70 90
H23C-5791 19202.43 50349.998 4466.932 556 -62.53 91.39
H23C-5798 21842.82 42721.378 4480.006 1306 -70 90
H24D-6000 18456.79 41109.25 4358.82 1288.1 -51.55 139.51
H24D-6001 20279.43 40613.29 4845.23 1897 -81.79 225.4
H24D-6002 19532.83 39871.49 4497.08 1936.6 -72.19 28.04
H24D-6003 21617.07 42344.04 4522.26 1603 -57.96 74.93
H24D-6004 21632.9 42668.16 4480.78 1491 -53.29 85.89
H24D-6005 20430.43 39723.11 4874.35 1978 -80.04 37.12
H24D-6007 18467.86 39384.38 4603.13 1764.3 -65.42 19.17
H24D-6009 21596.98 42343.93 4522.13 1439 -60.25 96.83
H24D-6010 22075.19 42771.26 4480.41 1270 -58.27 121.77
H24D-6008 21414.42 42576.31 4525.28 1589.3 -65.42 19.17
H24D-6011 22083.7 42463.77 4520 1128.9 -58.27 118.96
H24D-6012 21577.37 42129.56 4563.03 1480 -77.5 16.35
H24E-6013 19581.635 52769.501 4459.163 662 -49.93 81.98
H24E-6014 19438.89 51895.48 4426.114 600 -49.93 81.98
H24E-6015 23464.19 39901.24 5307.52 785 -49.93 81.98
H24D-6006 18702.71 40106.39 4419.27 1319.8 -80.04 37.12
H24D-6016 18394.08 39005.45 4671.78 2107 -63.53 20.92
H24D-6017 22075.42 42769.46 4479 1235.4 -63.53 20.92
H24D-6018 22084.57 42462.56 4520.41 1186 -63.53 20.92
H24D-6019 21733.69 42244 4521.2 1701 -63.53 20.92
H24D-6020 21876.02 42083.76 4559.42 1254.7 -49.93 81.98

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 49

 

7.5.2.1Drilling Methods

 

Drilling at Hycroft has been a mix of diamond core holes, reverse circulation (“RC”), and sonic drilling. A total of 6,024 drill holes representing 2,814,546 ft of drilling has been performed throughout the history of the project. A total of 35,647 down-hole surveys exist in the database.

 

7.5.2.2Logging Procedures

 

Core is loaded into cardboard boxes in approximately ten-foot intervals and are transported to the core processing facility. Geology data is logged directly into acQuire by the staff geologists where they log formation, lithology, structure, vein, mineralization, and alteration, and geotechnical data.

 

7.5.2.3Recovery

 

The average sample recovery within the ore at Hycroft is 82% and the average sample recovery within the waste is 75%.

 

7.5.2.4Sample Length/True Thickness

 

Sample length is generally 5 ft intervals sampled down the drill hole but broken in smaller intervals based on local geologic variation. The true thickness of mineralization is tens, of feet to more than 2,000 ft.

 

7.6Hydrogeology

 

An extensive program of hydrologic data collection was implemented by SRK Consulting (US) Inc. (“SRK”) for a previous owner of the property. That work is summarized in a report titled “Summary of Field Investigations and Conceptual Hydrogeology – Hycroft Mine Expansion Project, Nevada”, August 2013. SRK collected data from 43 drill holes including monitor wells, piezometers, slug tests, packer tests, long-term pumping tests, and ground water level monitoring. Eighty-one ground water samples were collected and analyzed over a period of a year and a quarter. The SRK work was utilized during the preliminary geotechnical analysis of the Hycroft pit slopes.

 

IMC holds the opinion that hydrologic data collection and analysis are appropriate to determine mineral resources and a preliminary economic assessment.

 

7.7Geotechnical

 

Call & Nicholas, Inc. (“CNI”) has completed geotechnical data collection and analysis. CNI has prepared two reports titled: “Hycroft Geotechnical Slope Stability Study; February 2022, and “2023 Camel Pit Geotechnical Logging and Laboratory Testing Report”. October 2023. Geotechnical laboratory testing has been completed by CNI during 2010, 2011, 2021, and 2023.

 

Two geotechnical holes were drilled in 2022 using diamond core methods (H22D-5726 and H22D-5729). These holes were sampled and logged for rock quality designation (“RQD”) and other geotechnical parameters by CNI engineers on site at Hycroft. Hole H22D-5729 was also televiewer logged.

 

CNI has provided slope angle recommendations that have been utilized to establish the mineral resource presented in this document.

 

IMC holds the opinion that geotechnical work is appropriate for development of mineral resources and preliminary economic assessment. Additional work will be required as the project progresses, and more detail is required.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 50

 

7.8Exploration Targets

 

In mid-2022 Hycroft restarted exploration drilling with the primary goal of converting waste material and inferred resource into Measured and Indicated resource. The drilling was dominantly RC, and RC with core tails occurring on the deeper (<1,800 ft) holes (See Table 7-2). In the second half of 2023 the program was re-aligned due to the recognition of significant silver grades both within subvertical thin veining in Brimstone and within a low angle breccia body at Vortex. Subsequently, the drilling method was switched to core to better understand and define structural complexities at Brimstone and Vortex. The drilling in Brimstone indicates the zone of veining is related to a structural dilation zone between East Fault related structures. The geometry of the high-grade Brimstone deposit has not been fully defined and remains open at depth and along strike. The drilling in Vortex along with additional mapping east on the trend of the Vortex mineralization, indicates the Vortex deposit is related to a pre-mineral detachment fault. Exploration targets were also identified outside the resource area to the east (Manganese and Wildrose) and south (Oscar) with work on these areas including detailed field mapping, soil and rock-chip geochemistry, IP geophysics, and core drilling. Additionally, exploration work was completed at Bay to start defining vein geometry as it extends below the current resource. These targets are still conceptual and may require significant work before a resource can be determined. Hycroft will continue to develop these high value targets in future exploration programs. The exploration program continued through 2024 with one core drill completing 21 holes totaling approximately 30,000 ft, which was exclusively focused on high-grade silver zones within Brimstone and Vortex.

 

Table 7-2: Significant Intercepts (2023)

 

Hole ID Area From (m) To (m) Interval (m) Grade
Au (g/t) Ag (g/t)
H23R-5748 Camel 105.16 134.11 28.96 0.41 8.82
  204.22 251.46 47.24 0.53 5.71
including 205.74 219.46 13.72 0.61 10.84
H23R-5749 Camel 195.07 240.79 45.72 0.53 4.86
including 204.22 222.50 18.29 0.64 3.75
  288.04 304.80 16.76 0.39 5.39
  368.81 377.95 9.14 0.39 3.42
H23R-5750 Camel 156.97 184.40 27.43 0.45 4.08
  210.31 245.36 35.05 0.50 4.18
  278.89 297.18 18.29 0.33 3.59
  377.95 387.10 9.14 0.44 4.17
H23R-5751 Camel 112.78 211.84 99.06 0.46 6.88
including 192.02 204.22 12.19 0.63 13.91
  393.19 429.77 36.58 0.41 3.24
H23R-5752 Camel 152.40 219.46 67.06 0.41 4.91
  333.76 371.86 38.10 0.37 29.32
including 338.33 345.95 7.62 0.33 85.36

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 51

 

Hole ID Area From (m) To (m) Interval (m) Grade
Au (g/t) Ag (g/t)
H23R-5757 Camel 45.72 111.25 65.53 0.51 10.38
including 45.72 56.39 10.67 0.50 36.37
  126.49 259.08 132.59 0.54 1.37
including 138.68 184.40 45.72 0.69 8.78
  350.52 365.76 15.24 0.47 7.67
H23R-5758 Camel 129.54 234.70 105.16 0.44 4.97
  298.70 329.18 30.48 0.41 2.31
H23R-5759 Camel 27.43 231.65 204.22 0.53 20.70
including 27.43 68.58 41.15 0.49 75.81
including 80.77 128.02 47.24 0.78 8.19
  281.94 359.66 77.72 0.35 3.48
H23R-5784 Camel 105.16 158.50 53.34 0.47 11.86
  237.74 289.56 51.82 0.42 12.26
H23R-5786 Camel 60.96 135.64 74.68 0.36 41.20
including 60.96 86.87 25.91 0.29 106.01
  173.74 225.55 51.82 0.43 44.99
including 173.74 181.36 7.62 0.49 266.72
H23R-5756 Camel 12.19 68.58 56.39 0.40 4.58
  141.73 204.22 62.48 0.36 4.76
  224.03 240.79 16.76 0.43 2.31
H23R-5785 Camel 164.59 213.36 48.77 0.50 43.60
including 172.21 184.40 12.19 0.59 161.16
H23R-5762 Camel 4.57 13.72 9.14 0.41 6.42
  48.77 455.68 406.91 0.39 4.90
including 137.16 202.69 65.53 0.59 6.14
H23R-5763 Camel 190.50 236.22 45.72 0.51 5.36
  254.51 445.01 190.50 0.42 4.99
including 367.28 445.01 77.72 0.53 3.76
H23R-5764 Camel 275.84 300.23 24.38 0.57 4.32
  396.24 519.68 123.44 0.47 7.00
H23C-5769 Vortex 357.62 417.15 59.53 0.36 75.91
including 399.32 417.15 17.83 0.55 211.89
H23C-5770 Vortex 0.00 29.57 29.57 0.45 7.42
  224.27 328.00 103.72 0.37 6.62
  347.38 398.07 50.69 0.50 139.87
including 350.58 368.72 18.14 0.31 288.82
including 387.16 398.07 10.91 1.29 138.48
H23R-5773 Brimstone 88.39 141.73 53.34 0.24 24.41
including 121.92 134.11 12.19 0.32 56.84
  310.90 342.90 32.00 0.51 4.87
  359.66 411.48 51.82 0.38 3.98
H23R-5774 Brimstone 108.20 111.25 3.05 0.36 57.00
  129.54 132.59 3.05 0.59 30.85
  275.84 278.89 3.05 0.69 34.45
  315.47 326.14 10.67 0.44 26.83
  393.19 396.24 3.05 0.54 5.00
H23C-5768 Brimstone 61.87 67.97 6.10 0.39 210.50

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 52

 

Table 7-3: Significant Intercepts (2024)

 

Hole ID Area From (m) To (m) Interval (m) Grade
Au (g/t) Ag (g/t)
H24D-6000 Vortex 71.7 102.3 30.5 0.64 13.80
  272.0 318.8 46.8 0.69 18.12
H24D-6001 Vortex 189.3 224.6 35.3 0.66 6.32
Including 220.0 223.5 3.5 1.07 16.76
  383.2 507.5 124.4 0.95 102.59
Including 385.4 388.2 2.8 7.38 40.85
Including 385.4 386.3 0.9 19.65 80.60
Including 410.7 424.8 14.2 2.13 77.34
Including 449.4 488.0 38.6 0.71 134.25
Including 451.7 452.0 0.3 0.03 4170.00
Including 458.5 462.1 3.6 2.99 40.94
Including 470.2 478.9 8.7 0.32 207.33
  498.2 507.0 8.9 0.31 475.56
Including 498.2 498.8 0.7 0.42 1700.00
Including 504.6 506.0 1.4 0.34 1538.78
H24D-6002 Vortex 357.3 458.2 100.9 0.38 100.65
Including 357.3 359.3 2.1 2.86 4.53
  428.4 448.8 20.4 0.83 357.01
Including 428.4 429.4 1.0 1.38 300.12
Including 435.9 439.5 3.6 0.66 397.04
Including 440.4 445.0 4.6 1.59 1066.47
Including 441.9 442.4 0.5 5.90 3310.00
  452.2 454.2 2.0 0.32 225.49

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 53

 

Hole ID Area From (m) To (m) Interval (m) Grade
Au (g/t) Ag (g/t)
H24D-6005 Vortex 111.2 119.1 8.0 0.79 176.54
  207.4 234.5 27.1 0.40 6.33
  254.4 476.9 222.4 0.45 32.38
Including 385.2 395.2 10.0 0.34 328.25
Including 385.2 386.9 1.7 0.94 1155.27
Including 408.2 419.0 10.8 0.24 107.02
  537.1 556.1 19.0 0.37 142.14
Including 537.4 537.6 0.3 0.06 6260.00
H24D-6006 Vortex 20.9 25.6 4.7 2.81 56.97
  19.6 31.3 11.7 1.38 31.50
  74.5 96.1 21.6 1.11 10.99
Including   74.5 79.2 4.8 0.91 8.60
Including 82.2 86.1 3.9 0.56 6.19
  279.7 280.1 0.4 0.15 581.00
  346.2 400.9 54.7 0.68 12.86
Including 351.8 355.1 3.3 2.19 9.29
Including 365.0 367.4 2.5 4.23 16.71
Including 373.3 375.3 2.0 1.05 16.13
H24D-6007 Vortex 46.1 93.6 47.4 0.35 22.51
Including 47.7 50.2 2.6 0.12 307.40
Including 64.0 64.6 0.5 3.10 54.40
  113.4 125.0 11.6 0.98 16.56
  371.3 399.5 28.2 0.44 11.98
  468.4 537.8 69.4 0.57 108.38
Including 468.4 474.7 6.4 0.63 213.71
Including 497.1 537.8 40.7 0.73 144.25
Including 497.1 500.9 3.8 0.23 193.57
Including 512.4 514.9 2.5 0.72 645.25
Including 513.2 513.7 0.5 1.19 1430.00
Including 536.3 537.8 1.5 4.78 960.00
H24D-6016 Vortex 405.4 456.3 50.9 0.42 19.38
  472.3 518.0 45.7 0.49 15.57
  535.3 557.2 21.9 0.40 53.80
H24D-6003 Brimstone 0.0 23.8 23.8 0.29 10.80
  42.4 47.8 5.5 0.20 119.54
  250.7 278.3 27.6 0.38 4.13
  351.4 440.0 88.5 0.23 34.70
Including 386.7 386.8 0.2 0.12 1835.00
Including 397.7 397.9 0.2 0.62 8410.00
Including 418.8 421.1 2.3 0.08 130.87

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 54

 

Hole ID Area From (m) To (m) Interval (m) Grade
Au (g/t) Ag (g/t)
H24D-6004 Brimstone 0.0 18.6 18.6 0.63 24.59
  341.4 361.6 20.2 0.34 5.48
  413.8 442.1 28.3 0.31 14.19
Including 429.3 441.4 12.0 0.52 11.73
H24D-6008 Brimstone 458.6 474.0 15.4 0.45 12.81
Including 464.5 467.9 3.5 0.82 20.54
Including 470.2 474.0 3.8 0.46 19.83
H24D-6009 Brimstone 0.0 16.2 16.2 0.38 54.89
Including   4.8 6.4 1.5 1.05 353.24
  333.2 358.7 25.5 0.35 5.46
  417.9 423.5 5.6 0.10 150.80
Including 417.9 421.1 3.3 0.10 199.20
Also Including 420.3 420.6 0.2 0.10 652.00
H24D-6010 Brimstone 328.4 346.6 18.2 0.35 1987.35
Including 331.0 332.8 1.8 0.11 2612.33
Including 333.4 335.8 2.5 0.33 4683.70
Also Including 333.4 333.7 0.3 0.41 20280.00
Including 340.2 342.7 2.5 0.50 5513.43
Also Including 340.2 341.1 0.9 0.72 10289.00
Also Including 341.1 341.4 0.3 0.64 15211.00
H24D-6011 Brimstone 109.3 119.0 9.8 0.81 8.14
  168.2 174.7 6.4 0.56 29.76
  246.3 260.2 13.9 0.31 311.41
Including 249.9 252.8 2.9 0.27 1211.32
  273.2 326.5 53.3 0.26 218.92
Including 289.0 314.4 25.3 0.28 401.50
Also Including 298.5 300.7 2.3 0.29 2210.81
Also Including 306.5 311.4 4.9 0.33 610.65
H24D-6012 Brimstone 37.3 37.8 0.4 0.49 4540.00
  65.8 66.8 0.9 0.52 4040.00
  284.0 325.2 41.2 0.39 7.28
Including 297.4 307.5 10.1 0.84 4.67
  354.6 405.4 50.7 0.28 101.82
Including 354.6 357.7 3.1 0.58 36.37
Including 366.3 372.6 6.2 0.23 282.25
Also Including 370.1 370.8 0.7 0.12 1185.00
Including 385.0 386.6 1.6 0.09 1156.86
Including 400.8 405.4 4.6 0.12 202.67
  419.1 421.5 2.4 0.24 103.52
Including 420.7 421.5 0.8 0.13 176.30

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 55

 

Hole ID Area From (m) To (m) Interval (m) Grade
Au (g/t) Ag (g/t)
H24D-6017 Brimstone 312.6 332.5 20.0 0.45 70.02
Including 314.7 321.6 6.9 0.14 151.39
H24D-6018 Brimstone 306.6 327.9 21.2 0.38 2359.68
Including 317.4 324.7 7.3 0.59 6278.23
Also Including 317.4 317.6 0.2 1.62 80017.00

 

H24D-6019 Brimstone 148.0 155.0 6.9 0.98 9.76
  379.1 392.4 13.3 0.16 314.05
Including 379.1 385.1 6.0 0.15 591.73
H24D-6020 Brimstone 262.8 274.7 11.9 0.34 25.86
  320.4 349.2 28.8 0.32 320.7
Including 328.7 332.0 3.3 0.36 775.1
Including 335.6 341.3 5.7 0.48 642.40
Including 343.6 346.2 2.6 0.24 465.16
H24E-6013 Bay 0.0 55.5 55.5 0.45 3.00
Including 13.6 15.0 1.4 3.84 40.00
H24E-6014 Bay 9.0 14.7 5.7 2.68 4.10
Including 12.5 14.7 2.2 4.91 4.74
H24E-6015 Manganese 33.6 41.2 7.6 0.81 293.51
Including 33.6 37.9 4.3 1.18 454.21
  55.4 55.9 0.6 7.91 117.00
  115.5 125.8 10.3 0.61 86.08
Including 117.1 123.6 6.5 0.72 131.15
  168.0 173.9 5.9 0.46 6.03

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 56

 

8Sample Preparation, Analyses, and Security

 

8.1Introduction

 

This section describes the sample collection, preparation, analysis, and security that has been used by Hycroft or their predecessors. Drilling and sampling at the Mine have been ongoing from 1982 through 2024. Hycroft provided IMC with the database which contained assay information for drilling from 1982 through 2024. IMC is the qualified organization for the section.

 

Most of the current staff at Hycroft have been at site for less than five years. As a result, much of the information that is reported here regarding historical sample preparation, analysis, and security was previously reported in a Technical Report Summary of Initial Assessment on the Hycroft Mine, Nevada, United States of America, Prepared by Ausenco Engineering USA South Inc for Hycroft Mining Corporation, Effective date: March 27, 2023. IMC has confirmed that information as much as possible with the data provided.

 

Discussion of quality assurance and quality control (“QA/QC”) regarding the database is presented in Section 9.

 

8.2Sample Preparation

 

The sample preparation procedures prior to 1999 were not documented. Starting in 2005, preparation procedures were well documented with standard methods. The comparison of the pre-2005 data with post-2005 drilling will be presented in Section 9 to provide some confidence in the application of some of the pre-2005 data.

 

Post-2005 sample collection consisted of both diamond core and RC drilling. Core samples are currently split at the mine site, tagged, and the split core is sent to commercial laboratories for further preparation. RC samples are currently collected at the rig with a rotary splitter. Bags of RC cutting splits are tagged and sent to commercial laboratories for further preparation and assaying.

 

Once at the commercial labs, the samples are crushed to 10 mesh and a 0.55 lbs. (0.25 kg) split is taken and pulverized to 85% passing 200 mesh prior to assay analysis.

 

8.3Assay Methods

 

Prior to 1992, most samples were sent to Barringer Laboratories, Inc., in Golden, Colorado. Fire assays (“FA”) were routinely performed on cyanide soluble assays for selected intervals.

 

From 1992 to 1999, samples were processed at the Hycroft laboratory at the mine site.

 

The Hycroft laboratory assays consisted of Au FA followed by cyanide soluble Au and cyanide soluble Ag on all intervals. The Mine cyanide soluble assay methods are reported to have been non-standard and were developed to provide a prediction of recoverable Au and Ag from heap leaching.

 

There are no samples in the database from 2000 through 2004. Starting in 2005, all samples were sent out to commercial labs for analysis that are independent of Hycroft. During 2012, there were 10 drillholes that were an exception to this rule and were assayed by the Hycroft lab. Those holes have reportedly been compared with assays from commercial labs and are still maintained in the database.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 57

 

The external labs that have been used by Hycroft prior to 2021 are all in the Reno/Sparks, Nevada area and are listed below with their accreditations:

 

ALS Minerals ISO9001:2000 and ISO17025
American Assay Laboratories ISO/IEC17025, PTP-MAL Canada
Inspectorate ISO9001:2008
McClelland ISO/IEC17025

 

During 2021 and 2022, Hycroft utilized the following laboratories in the Reno/Sparks area:

 

Bureau Veritas Mineral Laboratories USA ISO-9001 ISO-14001 ISO-45001 OHSAS-18001
Paragon Geochemical ISO/IEC 17025:2017

 

During 2023, Hycroft utilized the following laboratories in the Reno/Sparks area:

 

Paragon Geochemical ISO/IEC 17025:2017
ALS Minerals ISO/IEC 17025:2017 and ISO 9001:2015

 

During 2024, Hycroft utilized the following laboratories in the Reno/Sparks area:

 

ALS Minerals ISO/IEC 17025:2017 and ISO 9001:2015
American Assay Laboratories ISO/IEC 17025:2017

 

All intervals were assayed using conventional FA with Atomic Absorption (“AA”) or gravimetric finish for Au. Fire silver assays were not regularly completed by previous project operators. After 2013, aqua regia (“AR”) digestion was used for total silver assays and replaced the previous gravimetric treatment of silver. The lower detection limit on the AR method was the reason for the change.

 

The FA method for gold with an AA finish was the primary assay method at all the labs. Cyanide soluble methods were alternatively hot or cold depending on the lab.

 

As noted previously, cyanide silver was much more consistently assayed than fire silver. Starting in 2014, total silver was consistently assayed along with fire gold.

 

Cyanide soluble assays for gold and silver were highly prevalent in the pre-2000 drilling. As drilling began to target the deeper sulfide mineralization after 2005, the cyanide soluble assays were selectively run on the upper, oxidized portion of the deposit and not applied to the deeper sulfide mineralization.

 

During 2007 and 2008, Hycroft also applied the 35-element inductively coupled plasma (“ICP”) analysis to 90% of the assay intervals. That data results in 53,624 sample intervals that can be used to track trace elements.

 

During 2011, 127 drillholes were selected for ICP and Laboratory Equipment Corporation (“LECO”) analysis at American Assay. These holes were generally 500 x 200-foot centers across the estimated sulfide pit target at the time. Most were assayed on 25-foot intervals from top to bottom for total sulfur, sulfide sulfur and carbon. During 2014, additional sample intervals were selected from the 2012 to 2014 drilling for LECO and ICP.

 

During 2022, analysis for LECO was conducted on site by Hycroft on some drillholes.

 

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During 2023, some drillholes were selected for ICP (4-acid digestion) and LECO analysis at ALS Minerals. ICP was analyzed on a sample-by-sample basis while LECO was analyzed on 25-foot composites. Some drillholes were analyzed for LECO on site by Hycroft.

 

During 2024, all drillholes were sent out for ICP (4-acid digestion) and LECO analysis at ALS Minerals. In addition, a portion of the 2022 and 2023 drillholes were also sent out for ICP and LECO analysis to ALS. ICP was analyzed on a sample-by-sample basis while LECO was analyzed on 25-foot composites.

 

The sulfide sulfur results from this work have been used to assign sulfide sulfur values to the block model for process metallurgical input. It should be noted that the sulfide sulfur procedures also report elemental sulfur along with the sulfide component.

 

Assay submittals have included blanks and standards since 2007. Check assays and duplicate assays were submitted in 2012 and 2014. The results of the analysis of those samples will be reported in Section 9.

 

Assay procedures requested of ALS laboratories Reno and ALS Laboratories in Vancouver include:

 

ALS Au-AA23 testing:
  
FA gold with an atomic absorption spectroscopy (“AAS”) finish
  
FA Fusion with AAS finish for Au
  
30 g nominal sample weight
  
0.005/10 g/t lower/upper limit
  
>10 g/t over limit testing by gravimetric by Au-GRA21
  
ALS Au-AA13 testing: cyanide leach capacity
  
Cyanide leach; AAS finish for Au
  
30 g nominal sample weight
  
0.03/50 g/t lower/upper limit
  
ALS ME-ICP41 testing
  
AR digestion with an atomic emission spectrometry (“AES”) or AAS
  
AR digestion with AES or AAS finish
  
0.5 g nominal sample weight
  
0.2/100 g/t lower/upper limit.
  
100 g/t over limit testing by AR digestion and AES or AAS finish by Ag-OG46
  
1,500 g/t over limit gravimetric testing by Ag-GRA21
  
10,000 g/t overlimit gravimetric testing by Ag-CON01
  
ALS Ag-AA13 testing: cyanide leach capacity:
  
Cyanide leach with AAS finish
  
30 g nominal sample weight 0.03/350 g/t lower/upper limit
  
ALS ME-MS61m testing: multi-element trace elements:
  
Four acid digestion with ICP atomic emission mass spectrometry (“MS”)

 

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0.75 g nominal sample weight
  
49-element suite with automatic ore-grade testing on over-limits
  
Over-limits were set-up specific to each element
  
ALS S-GRA06a testing: sulfur speciation for autoclave blending:
  
Total sulfur by LECO furnace analysis
  
HCI (15%) leach of sulfates with LECO furnace analysis for sulfide sulfur (“SS”). Sulfide values are reported as calculated values
  
1 g nominal sample weight
  
0.01/50% lower/upper limit by weight
  
Assay procedures requested of American Assay Laboratories (“AAL”) Reno:
  
AAL IO-FAAu30 testing: fire assay (“FA”) with an optical emission spectrometry (“OES”) finish:
  
FA with an OES finish for Au
  
30 g nominal sample weight
  
0.003/10 g/t lower/upper limit
  
> 10 g/t over limit gravimetric testing by G-FA Au
  
AAL IO-2AAg testing: AR with an optical emission spectrometry (OES) finish:
  
AR digestion with an OES finish
  
30 g nominal sample weight
  
0.3/100 g/t lower/upper limit
  
> 100 g/t over limit AR digestion testing by IO-2AOR-AG1000
  
> 1,000 g/t over limit gravimetric testing by G-FAAg

 

8.3.1Sample Security

 

Samples were delivered to the analytical laboratories in numbered bags along with transmittal sheets that list the sample numbers, the total sample count, and codes for sample type (RC or Core). The lab confirmed the receipt of shipment against the transmittal sheets to account for all samples issued.

 

It is reported that no officers, directors, or associates of Hycroft or their predecessors were operationally involved in the sample collection, preparation, or assay transmittal.

 

Sample security relies on the samples being in custody of Hycroft personnel or stored in a secure area prior to shipment to ALS. Chain-of-custody procedures consist of unique and independent sample numbers used for each sample with dispatch-submittal sheets and database entries used to track the progress of samples and to ensure that all samples are received by the laboratory.

 

Unique and independent sample numbers and sample tags are used in all cases. Sample Dispatch and Submittal sheets are used to check and track samples through the system. Sample information is entered into the computer database to track the samples and record results.

 

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8.4Sample Storage

 

Split core and chip trays are stored on site in an enclosed warehouse, Conex containers, or wrapped outside, located near the core shed. Generally, since 2021, the remaining half of split core is retained. However, core from 2021 was mostly consumed for metallurgical purposes, and core prior to 2021 no longer exists.

 

Sample rejections are retained but stored outside where they degrade after three to four years.

 

All core boxes, chip trays, and pulps are coded to facilitate easy retrieval when required.

 

8.5Analytical Results

 

Following analysis, results are posted to a digital laboratory database for which Hycroft has secure permission privileges. Managers download data where the sample results are cross-referenced to sample numbers. Each drillhole carries a unique self-identifying sample number, simplifying cross-referencing. The completed digital file for each drillhole is emailed to Hycroft by the lab, and a follow-up, hard copy certificate is mailed to Company offices.

 

Data is checked by geologists visually and loaded into the secure acQuire database. The acQuire database is further checked using electronic methods and then calculated into ounce per ton values and loaded to the modeling database for display and further visual QA/QC checking.

 

Database security and integrity are accomplished by restricting access and user level permissions that are set by the Database Administrator. Once data entry and validation are completed for a drill hole, access is locked. There are procedures for version control on any updates that may happen over time, so that the database will retain all original information and prioritize use of any updates.

 

8.6QP Comment

 

The sample preparation, analysis and security practices are typical for the US mining industry and are acceptable for application to mineral resource determination.

 

The QP considers that current sampling, sample preparation, analytical methods and security are acceptable, are in line with industry-standard practices, and are adequate for Mineral Resource estimation.

 

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9Data Verification

 

9.1Verification Procedure

 

This section will address the QA/QC and data verification procedures that were used to confirm that the Hycroft database was acceptable for estimation of mineral resources. Multiple tasks have been completed to verify the data since the completion of the previous Technical Report Summaries of Feb 2022 and Feb 2023.

 

The data verification steps were as follows:

 

1.Detailed comparison of certificates of assay versus the assay database which resulted in substantial update and correction to the database.
  
2.Analysis of the QA/QC data used by Hycroft and previous owners from 2005 to 2024. This work was done in three stages representing different time periods.
  
3.Analysis of diamond drilling hole (“DDH”) versus RC Drilling with the 2005-2024 drilling to confirm that the two methods can be comingled and utilized for the estimation of mineral resources.
  
4.Comparison of pre-2005 drilling versus 2005-2024 drilling to verify the application of the older data. The pre-2005 data has no QA/QC information that can be used to verify its reliability.

 

The IMC approach to data verification was to establish the reliability of the Post -2005 drilling based on the available QA/QC data and the comparison between DDH and RC. Once the 2005-2024 data was established as reliable, it was used to check the historic pre-2000 drilling by a nearest neighbor sample comparison.

 

9.2Certificate of Assay Checks

 

The team at the Mine site completed an extensive check and verification of the data base with interval-by-interval checks against the available certificates of assay. After completion of that work, IMC completed a spot check of 95 of the drill hole certificates of assay to confirm the edits and corrections completed by Hycroft.

 

9.3QA/QC 2005 – 2024

 

The 2005 to 2024 drilling data had the following QA/QC information collected:

 

Standards.
  
Blanks.
  
Duplicate Assays.
  
Check Assays from 2011 through 2013 and again in 2024.

 

That information will be analyzed in three parts to understand the relative reliability of the post-2005 drilling: (1) the data collected from 2005 to 2014, (2) the data collected from 2021 through 2022, and finally (3) the 2023 to 2024 data.

 

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9.3.1Standards 2005-2013

 

Blind standards are inserted into the assay sample submissions for analysis at the assay lab. The lab obviously knows the sample is a standard, but they do not know which standard.

 

The early standards database provided to IMC did not include dates of insertion. It is presumed that the insertion of standards started in 2005 with the modern drilling program. However, the earliest example of standard acquisition that IMC could find was mid-2007. There are indications of sample insertion though the 2013-time frame.

 

In most exploration environments, standards results are reviewed as they arrive from the lab to confirm that the measured result is within the error tolerance reported for the standard. IMC takes a different approach and compares the accepted value of the standard against the multiple assays of the standard on an XY plot to identify any potential bias in the assay process.

 

Figure 9-1 illustrates the results of the standards submissions for gold for 2005-2013.

 

The comparison of the accepted value of the standard and the tested standards results does not indicate consistent bias. The points that are scattered off-line reflect swapped samples meaning that the wrong standard was recorded or submitted to the lab compared to the tabular results. There are 22 apparent sample swaps out of 7,154 tested standards or about 0.3% of the original samples.

 

Figure 9-2 summarizes the results of the total silver standards submissions. There is substantially more variation in the silver standards results as one would expect in this grade range. In addition, most of the original assays are gravimetric finish which have a detection limit of 5 ppm or 0.15 oz/ton. There are only five standards below 0.15 oz/ton out of 6,498 Ag standards analyzed. With some standards values as low as 0.20 oz/ton it would not be out of line to see an indication of subtle bias if the lowest value that can be reported is 0.15 oz/ton.

 

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Figure 9-1: Results of Submitted Gold Standards 2005 - 2013

 

Source: IMC, 2021

 

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Figure 9-2: Results of Submitted Silver Standards 2005-2013

 

Source: IMC, 2021

 

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9.3.2Blanks 2008 - 2014

 

Blank samples are inserted periodically to confirm that metal is not carried over from one sample to the subsequent sample in the sample stream. Figure 9-3 summarizes the results of the blank submissions for gold from 2008 to 2014. The figure indicates that the majority of samples reported back as trace or small values.

 

However occasional samples have been reported near or above heap leach feed grade. Of the 2,260 standards in Figure 9-3, 5.9% reported higher than 0.005 oz/ton and 5.6% reported higher than 0.010 oz/ton. Although these represent small percentages, there is room for improvement.

 

One expects that some of the samples were not blanks but were mistakenly inserted standards. The statistical average above 0.005 oz/ton is about 0.019 oz/ton, which is quite close to the standard value of the Cove 2 standard.

 

Figure 9-3: Results of Blank Submissions

 

Source: IMC, 2021

 

9.3.3Check Assays 2011-2012

 

Assay pulps were submitted to a second lab as check assays during 2011–2012. The primary lab was ALS, and the check lab was AAL. The results are summarized in Figure 9-4 and Figure 9-5 as XY plots.

 

The variability in the results is more than one would expect from pulp submissions, but there does not appear to be an observable bias in the laboratory comparisons. The line on the graphs illustrates a 1:1 relationship as a comparison.

 

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Figure 9-4: Check Assay Results, Fire Assay Gold 2011 - 2012

 

Source: IMC, 2021

 

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Figure 9-5: Check Assay Results, Fire Assay Silver 2011 – 2011

 

Source: IMC, 2021

 

9.3.4Standards 2021 – 2022

 

All recent drilling completed by Hycroft utilizes standards, blanks, and duplicate assays for QA/QC confirmation of the database. Hycroft analyzes the data as it is received to confirm that the results are within appropriate acceptance ranges.

 

Diamond drilling was the primary method used during 2021, and RC drilling was the primary method during 2022. An analysis of RC to DDH during 2021 and 2022 indicates that both can be used for mineral resource estimation. In addition, two assay laboratories were used in 2021 and 2022. Bureau Veritas, Mineral Laboratories, USA (Sparks, Nevada) and Paragon Geochemical Laboratories, (Sparks, Nevada) were both used to assay Hycroft samples during this period.

 

Paragon and Bureau Veritas’ results have been analyzed separately and both provide similar results. The figures presented for the 2021 through 2022 QA/QC show both laboratories combined as a summary of the overall results. Most of the silver QA/QC was applied to cyanide silver assays. Since those are not used in this estimate, the gold QA/QC information is shown.

 

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The standards that do not check well amount to about 2.4% of the submitted standards. Those out-of-range results tend to line up with other standards or blank values. This implies swaps in standards submissions or in data recording rather than outright errors in the assay.

 

Figure 9-6 illustrates the standards results for the 495 submitted gold standards during 2021 and 2022.

 

Figure 9-6: Standards Results, 2021 – 2022

 

Source: IMC, 2023

 

9.3.5Blank Analysis Results 2021-2022

 

Blanks are inserted and analyzed to confirm that there is no sample-to-sample contamination. Figure 9-7 illustrates the results of blank submissions during 2021 – 2022. The results indicate only one value reported with a potentially economic gold grade out of 495 blank submissions.

 

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Figure 9-7: Blank Results, 2021 – 2022

 

Source: IMC, 2022

 

9.3.6Duplicate Assays, 2021-2022

 

Duplicate pulps were assayed to confirm the repeatability of results from the assay lab. During 2021-2022, 314 duplicates were re-assayed. Figure 9-8 summarizes the results of the duplicate checks. There are two results that are higher than expected. Those reflect an error rate of about 0.64%.

 

Figure 9-8: Duplicate Assay Results, 2021 – 2022

 

Source: IMC, 2023

 

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9.3.7Standards 2023 – 2024

 

During 2023 and 2024, 70 drill holes were completed. Of that total, 44 were diamond drilling, the rest were RC drilling. The next few sections address the QA/QC completed by Hycroft during the period of 2023 through 2024.

 

During this period, 1,501 gold standards were inserted out of 18,893 gold assays, amounting to almost 8% of the assay count. However, only 36 silver standards were inserted during this period and all of those were during 2024. The explanation is that silver standards were inserted if there was observable high-grade silver mineralization. This procedure is inappropriate and should be corrected going forward so that the silver standards insertion rate is 5% of the total assay number.

 

The average grade of all silver assays during 2024 was 1.46 oz/ton. In the future, as silver values and volumes increase at Hycroft, silver bearing material will receive the same QA/QC diligence as gold.

 

Figure 9-9 illustrates the comparison of assayed gold values versus the standard value inserted into the assay stream.

 

Figure 9-9: Gold Standards 2023 – 2024

 

Source: IMC, 2025

 

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The results of this overview are consistent with previous work where the incorrect standard was inserted, or the wrong standard was recorded. The number of these occurrences is extremely small, and the gold standard results are acceptable for 2023-2024.

 

The 36 silver standards did not illustrate any bias, but the graph is not shown due to the insignificant number of silver standards.

 

9.3.8Blanks 2023-2024

 

Figure 9-10 summarizes the results of 1,013 blank insertions during 2023 and 2024 (6%). The results are positive with only one value at 0.045 g/t.

 

Figure 9-10: Blank Insertions 2004

 

Source: IMC, 2025

 

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9.3.9Duplicate Assays 2023-2024

 

Three different types of duplicates samples were applied in 2023. The naming convention and the source of the duplicates is summarized below:

 

1.FDUP: Field duplicate, these were ¼ core for DDH holes and a second split from the rotary splitter for RC samples. IMC check procedure is to combine field duplicates with the core and RC field duplicates.

 

2.PDUP: Pulp duplicate, a second aliquot from the pulp is inserted into the sample stream to check the repeatability of the assay process.

 

3.CDUP: Coarse duplicate, a second split from the coarse rejects is taken during the sample preparation process. The coarse duplicate is meant to check on the repeatability of the pulp preparation and assaying combined.

 

The above duplicates were assayed for both gold and silver and compared to the original values of gold and silver to confirm the overall process repeatability (precision). The results of all three duplicate types for both gold and silver produced similar statistical mean and standard deviation results for all tests. All tests comfortably passed the Student’s T test illustrating that they represent the same population with a high degree of confidence.

 

Figure 9-11 and Figure 9-12 illustrate the results for the gold and silver duplicate checks during 2023-2024 respectively.

 

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Figure 9-11: Gold Duplicates, 2023-2024

 

Source: IMC, 2025

 

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Figure 9- 12: Silver Duplicates, 2023-2024

 

Source: IMC, 2025

 

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9.3.10Check Assays 2023-2024

 

During 2023 – 2024, 668 sample pulps were sent to an outside laboratory for independent checks on the primary assay lab. The primary lab changed from Paragon to ALS Chemex between 2023 and 2024. However, the check assays were all completed at AAL. The check assay rate is about 3.5% out of the total number of over 18,800 assays during 2023 through 2024.

 

Basic statistical analysis of the original versus check assays indicate that the check data report the same population as the primary lab with better than 95% confidence. Figure 9-13 and Figure 9-14 illustrate X-Y plots of the original assays versus check assays for 2023-2024.

 

Figure 9-13: Gold Check Assays 2023 – 2024

 

Source: IMC, 2025

 

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Figure 9-14: Silver Check Assays, 2023-2024

 

Source: IMC, 2025

 

9.3.11DDH vs RC for Post 2000 Samples

 

The drillhole database at Hycroft is predominately based on RC drilling with some DDH. Prior to 2000, the database does not provide a record regarding the type of drilling applied, although it was reported to be largely RC.

 

Since 2000, the database records whether the drilling was RC, DDH, or sonic. All the DDH drilling was completed after 2006. The sonic drilling was applied in stockpiles which are a minor component of the remaining mineral resource.

 

The RC data was compared to DDH drilling using the nearest neighbor method that was described in the previous sub-section. Table 9-1 summarizes the results of that comparison.

 

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Table 9-1: Nearest Neighbor Sample Comparison of RC vs Diamond Core Gold and Silver Assays

 

Maximum Separation Distance (ft) Number of Sample Pairs

RC Mean

(oz/ton)

DDH Mean

(oz/ton)

Ratio of the Means T-Statistic1
Gold
10 1114 0.006 0.005 0.903 0.976
20 3207 0.006 0.006 0.965 0.681
Silver
10 1042 0.197 0.281 1.428 0.971
20 3005 0.296 0.224 0.757 1.512

 

Note:

 

1.T-Statistics is the Smith-Satterthwaite T for large populations

 

The results indicate that the RC and DDH drilling information provide similar results for the post-2006 drilling and that they can be combined for estimation of mineral resources.

 

9.3.12Old vs. New Drilling

 

Early technical Reports regarding Hycroft mineral resources had reported that all gold assays prior to 2000 were factored upward. Those in acid leach alteration were factored upward by 1.32 and all others upward by 1.19 (Hycroft Project Mill Expansion Feasibility Study Technical Report, October 31, 2016, and Technical Report, Allied Nevada Gold Corp, Hycroft Mine, October 2011).

 

Detailed checks on the certificates of assay indicate that the gold assay information used by Hycroft and provided to IMC for use in this estimation of mineral resources has not been factored in any way and the database matches the original certificate of assay.

 

A comparison of pre-2000 drilling and gold assay results versus the 2005-2024 gold assay results indicates that the old data averages higher grade than the new data when compared on a nearest neighbor basis. To identify the source of this bias, the pre-2000 data was analyzed on a year-by-year basis against the 2005-2024 drilling assay data. The 2005-2024 data set has been illustrated to be reliable based on the QA/QC analysis reported on previous pages and on the DDH-RC comparisons reported in the previous sub-section.

 

A nearest neighbor analysis was completed comparing 1999 drilling versus 2005-2024. That was followed by analysis of 1998 versus 2006-2024. This process was completed annually for all years prior to 2000. The results for years 1988 through 1999 were stable and compare acceptably with the 2005-2024 data. However, once 1987 and earlier years were compared against the 2005-2024 data, an obvious high bias was identified in the 1982 to 1987 data.

 

To summarize the results, the 1982-1987 data is compared to the 2005-2024 data on a nearest sample basis. These results were completed for sample distances as close as 5 ft for assay data.

 

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Table 9-2: Nearest Neighbor Sample Comparison of 1982-1987 Gold Assays versus 2005 – 2024 Gold Assays

 

Maximum Separation Distance ft

Number of Sample

Pairs

1982-1987 Mean

oz/ton

2006-2024 Mean

oz/ton

Ratio of the Means T-Statistic1
5 164 0.020 0.012 1.67 3.98
10 300 0.025 0.017 1.47 4.24
20 803 0.020 0.011 1.82 8.41
30 1,635 0.018 0.010 1.80 10.43
40 2,746 0.017 0.010 1.70 12.47

 

Note:

 

1.T-Statistics is the Smith-Satterthwaite T for large populations

 

The above data excludes the stockpile drilling and includes all hard rock data that is located within the block model area.

 

The results of Table 9-2 indicate that the 1982-1987 gold assays are between 1.47 and 1.80 times higher than the 2005-2024 gold assays. The T-Statistic reported on the right side of the table is comfortably above the value of 2.0 for the sample separation distances. If the T-Statistic is greater than 2.0 one should reject that the two data sets are similar.

 

The above analysis indicates that the 1982-1987 data is biased high and unreliable relative to the more modern 2005-2024 drilling and assaying. The 1982-1987 drilling is reported to be RC drilling completed by an early predecessor of the current Hycroft management. Hycroft and IMC have not found any record regarding the RC sampling methods that were applied during that time that would shed light on the cause or source of this bias.

 

Half of the 1982 to 1987 database has been mined out. Discussion with retired Hycroft staff has indicated that production reconciliation was difficult during that period. However, the 1982-1987 data set does indicate the presence of mineralization. To capture that mineralization in the potential resource, IMC and Hycroft have completed the following steps:

 

1.The 1982-1987 gold data (composites) were multiplied by 0.56 to remove the observed high bias. There are no fire silver assays recorded during that period.

 

2.Block gold grades were estimated without the 1982-1987 data and were frozen so that they could not be changed.

 

3.Block grade estimation for gold was repeated including the bias corrected 1982-1987 data.

 

4.If a block received a gold grade in this process that was not previously assigned, it was added to the model and coded as “inferred” class mineralization.

 

5.The resource floating cone was regenerated with the additional 1982-1987 inferred resource blocks.

 

In summary, a bias corrected version of the 1982-1987 data was incorporated so that any component of the resource based on that data is coded as “Inferred.”

 

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9.3.13Downhole Surveys

 

The Mine operates on a local mine survey grid that is rotated 15.85 degrees from the Nevada state plane coordinate system. Down-hole survey data from the drill rigs reports directly in true north coordinates, requiring all holes to be rotated into the Hycroft grid.

 

Hycroft personnel have spent substantial time checking the downhole survey bearings against the original downhole survey logs. The data is stored in both state planes, and the Hycroft grid in the Hycroft system. Hycroft and IMC have confirmed that the down-hole surveys used for mineral resource estimation are in the Mine grid, consistent with the resource model and historic and potentially future mine planning.

 

9.4QP Comment

 

The work outlined in this section is a summary of over a year’s worth of data verification and checking by Hycroft and IMC personnel. As a result, the Hycroft and IMC teams have gained significant confidence in this data set. IMC holds the opinion that the database as utilized in this statement of mineral resources inclusive of the edits and corrections outlined is appropriate for the estimation of mineral resources. The 1982-1987 data set has been incorporated so that it only contributes to inferred category mineral resource after correction of the high bias of that data.

 

In the future, IMC recommends that complete QA/QC procedures be applied to silver and sulfide sulfur assaying and sampling. Regular sampling for QA/QC should be applied to those values in the same way as they have been recently applied to gold.

 

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10Mineral Processing and Metallurgical Testing

 

10.1Introduction

 

Hycroft has been operating the Mine as an open pit mine with a run-of-mine (ROM) heap leach facility (HLF) treating oxide ores to produce gold and silver since 2008. Prior to that, Vista Gold operated the Mine in a similar manner. As a result, the cumulative performance statistics and metallurgical test data gathered for the direct cyanidation of high-grade ROM oxide ore via heap leach are extensive and are not the focus of this report. The following subsections focus on metallurgical testwork conducted by Hycroft on extraction of Au and Ag from refractory sulfide mineralization.

 

The metallurgical test programs conducted on the Hycroft sulfide mineral deposits over the years have consisted of comminution, flotation, concentrate oxidation, and cyanide leaching tests on mineralized materials, flotation tailings, and oxidized sulfide concentrate samples. The samples were mostly derived from drill cores. Most of the flotation testwork were conducted at G&T Metallurgical Services (G&T) and SGS Canada Mineral Lakefield (SGS), both located in Canada, as well as by Hazen Research Inc (Hazen) in Colorado. Oxidation testing was primarily conducted by Hazen, SGS and Kappes, Cassiday & Associates (KCA). G&T (ISO – 9001:2008) and SGS (ISO – 17025:2017) both have ISO accreditation. All laboratories are independent of Hycroft.

 

In general, core samples for metallurgical testing were selected to be representative of the mineralized materials, drawing from five mineralization domains, as they were classified at the time. The primary sources included the Brimstone and Vortex domains.

 

10.2Metallurgical Testwork

 

10.2.1Summary of Metallurgical Testwork Programs

 

Table 10-1 summarizes the metallurgical testwork programs completed to date for the Hycroft sulfide mineralization, including the testing laboratory/location and the primary testwork performed.

 

Table 10-1: Metallurgical Testwork Summary Table

 

Year Laboratory/Location Testwork performed
2009-2014 SGS Minerals Services (Lakefield, Canada) Flotation testwork
2011 Kappes, Cassiday & Associates (Reno, USA) Flotation, batch and locked-cycle testing
2011 G&T Metallurgical Services Ltd. (Kamloops, Canada) Flotation testing
2011-2016 Hazen Research, Inc. (USA) Flotation variability testing; concentrate oxidation tests
2013 SGS Minerals Services (Lakefield Canada and South Africa) BIOX testing
2014 Hazen Research, Inc (USA) Pilot plant flotation testing
2021-2025 FLSmidth Minerals Testing (Salt Lake City, USA) Flotation variability testing
2024-2025 Hazen Research, Inc (USA) Concentrate oxidation testing

 

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10.2.2Mineralized Materials and Sampling

 

Hycroft mineralized materials are classified as oxide, transition, or sulfide based on the cyanide solubility of its gold, which is used as an indicator of refractoriness. Materials with cyanide soluble gold of 70% or greater are classified as oxide, while material with cyanide soluble gold of less than 30% is classified as sulfide. Material with a cyanide soluble ratio between 30% and 70% is classified as transition. The classification has been shown to have no strong correlation with sulfide sulfur content.

 

10.2.3Hycroft Mineralization Domains

 

The Hycroft mineral deposit consists of five process domains, namely Bay, Boneyard, Brimstone, Central, and Vortex.

 

Table 10-2 is a summary of the data for average total sulfur, sulfide sulfur, and the ratio of sulfide sulfur to total sulfur from 95 oxide, 158 transition, and 417 sulfide samples collected from the Brimstone, Central, and Vortex domains. It shows that the classification of mineralized material as oxide, transition, or sulfide is essentially a measure of refractoriness and shows little correlation with sulfide-sulfur content of the minerals. The sulfide-sulfur to total sulfur ratio averages slightly over 80% across the entire dataset, indicating that degree of sulfur oxidation is similar among oxide, transition, and sulfide classifications.

 

Table 10-2: Average Sulfur Contents of Oxide, Transition and Sulfide Mineralized Materials

 

Total S (ST), % Oxide Transition Sulfide
Brimstone 2.55 2.41 2.25
Central 2.94 2.82 2.48
Vortex 2.47 2.66 2.33
Unclassified 4.28 2.92 2.61
All 3.00 2.74 2.43
Sulfide S (S=), % Oxide Transition Sulfide
Brimstone 2.19 2.06 1.87
Central 2.36 2.26 1.80
Vortex 2.09 2.23 1.91
Unclassified 3.29 2.23 2.09
All 2.45 2.23 1.93
S=:ST Ratio Oxide Transition Sulfide
Brimstone 0.839 0.839 0.820
Central 0.810 0.806 0.797
Vortex 0.880 0.827 0.833
Unclassified 0.840 0.823 0.843
All 0.849 0.819 0.824

 

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10.3Legacy Testwork

 

Table 10-3 below lists the number of samples selected to span the three main domains and their distribution within the mineral deposit.

 

Information on the individual core samples selected for testing can be found in the metallurgical test reports referenced in this study.

 

Table 10-3: Summary of Test Samples

 

Tests Number of Samples per Domain
Central Brimstone Vortex Composite
Crushing (CWi) 1 1 5 7
Axb (Drop Wt & SMC) 13 6 9 32
Bond BWi 24 6 16 58
Bond RWi 2 1 0 5
Bond Abrasion 3 1 5 12
Flotation 11 13 24 48

 

10.3.1Comminution Tests

 

The Hycroft mineralized material has been extensively characterized for its comminution properties in previous studies. Comminution tests were conducted at the laboratories of SGS, G&T, Hazen, and Phillips, and included crushing and grinding work indices, JKSimMet parameters, and abrasion indices.

 

A summary of the 80th-percentile comminution test results is presented in Table 10-4 below. For the Axb parameter, material competence increases as Axb decreases, therefore, the 80th-percentile in material competence corresponds to the 20th-percentile of Axb value. The results indicate that the Hycroft mineralized material is very competent.

 

Table 10-4: Grindability Test Summary

 

Parameter Unit Value
CWi kWh/ton 18.6
RWi kWh/ton 21.2
BWi kWh/ton 20.1
Axb unitless 34.2
SPI (min) min 102.4
Ai (g) g 0.623

 

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10.3.2Flotation

 

Refractory gold in Hycroft’s sulfide mineralized materials is believed to be associated with iron sulfides, primarily pyrite and marcasite. The objectives of the flotation testwork were to evaluate the floatability of the sulfide minerals and the recovery of gold and silver into a sulfide concentrate. Recovering gold and silver into a sulfide concentrate reduces the volume of material requiring downstream processing.

 

Initial flotation testwork was performed by SGS in March 2009 and continued at several laboratories through April 2014. Over this period, the testing program progressed from bench-scale flotation tests to pilot plant flotation testing conducted at G&T and Hazen.

 

10.3.2.1SGS Minerals Services (Lakefield) – March 2009

 

Six drums containing samples representative of the Hycroft Project were shipped to SGS Minerals Services (Lakefield) on September 5, 2008.

 

The initial flotation test development program consisted of three bench-scale rougher kinetics tests to evaluate the effect of primary grind size on flotation response. A standard bulk sulfide collectors suite, comprising potassium amyl xanthate (PAX) and dithiophosphate (Cytec AF 208), was used in conjunction with Dowfroth 250 as the frother. An additional five bench-scale tests were conducted to investigate alternative reagent schemes and grind sizes.

 

Flotation testwork was conducted on the Master Composite sample. The flotation investigation consisted of the following:

 

Two-stage cleaner flotation applying the flowsheet developed during phase 1 testing (program 12012-001).

 

Cyanide leaching of the second cleaner flotation concentrate.

 

Cyanide leaching of the recombined rougher and first cleaner scavenger tailings.

 

SGS stated “In terms of sulfide flotation, it appears that beyond about 10% mass pull, recoveries were on the same grade vs. recovery curve regardless of grind fineness.”

 

10.3.2.2SGS Minerals Services (Lakefield) – Nov 2010

 

Batch tests were completed on 33 sulfide zone composites representing the Vortex (18), Cut 5 (4), Bay Area (10), and Bone Yard (1) deposits of the Mine sulfide resource. Multiple rock types were represented in the composites. The testwork evaluated metallurgical variability in response to the flotation (and cyanidation) flowsheet previously developed for the Master Composite under program 12012-001.

 

Metallurgical variability testing consisted of rougher flotation followed by concentrate regrinding and two-stage cleaning. In the initial set of tests, the second cleaner concentrate was cyanide leached. Based on review of those results, cyanide leaching was subsequently refocused on the combined rougher and first cleaner scavenger tailings.

 

From these tests, gold recovery in rougher flotation ranged from ~62% at a mass pull of ~15% (Test F-2, P80 of ~103 μm) to ~69% at a mass pull of ~17% (Test F-1, P80 of ~128 μm). At comparable mass pulls, silver recovery ranged from 74% (Test F-2) to 85% (Test F-1). The addition of a dithiophosphate collector (Cytec A208) in Test F-5 further improved Au recoveries to 80.1% at a mass pull of 14.6%.

 

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10.3.2.3KCA Batch Tests – Jan 2011

 

In December 2010, KCA received material from the Hycroft project at its laboratory facility in Reno, Nevada. Portions of the received material were composited, as directed, to generate six composite samples for metallurgical testing. Initial testwork was conducted by KCA and reported in the study titled “PAX, pH, and Grind Flotation Kinetics Study” (January 2011). Additional flotation testing was subsequently completed, including cyanide leach testing of flotation products.

 

10.3.2.4KCA Locked-cycle Tests – May 2011

 

Portions of the six composites were combined to generate two master composites, a Sulfide Master Composite and a Mixed Master Composite. Additional flotation testing was conducted using material from these composites, including cyanide leach testing of the flotation tailings.

 

10.3.2.5G&T Metallurgical Services Ltd. – Feb 2011

 

Five separate shipments of samples were received at G&T Metallurgical Services Ltd between August 31 and December 3, 2010. The samples consisted of half HQ drill core, with a total estimated mass of approximately 2.9 tons. These samples were used to construct thirty-nine composite samples for flotation and cyanidation testing.

 

For the first set of twenty-four composites, a single stage batch cleaner flotation test was performed. For the second set of samples (M1 to M17), a simplified flotation flowsheet was applied, using a reduced reagent scheme consisting of PAX and MIBC only. Under this simplified flowsheet, the flotation froth was more stable and more representative of a typical sulfide flotation froth compared to the original flowsheet. Overall, the samples responded well to flotation. Across all thirty-nine composite samples, average flotation recoveries to the rougher concentrate were about 78% for Au and 67% for Ag.

 

Using this revised flowsheet applied to samples M1 to M17, average rougher recoveries were 78% for Au and 83% for Ag. These recoveries generally correlated with sulfide sulfur recovery to the rougher concentrate. Table 10-5 and Table 10-6 show the results of this testwork.

 

Table 10-5: G&T Composites 1 through 24 Flotation Test Results

 

Sample ID

ST

(%)

S=

(%)

Au (oz/ton) Ag (oz/ton) Rougher Conc Mass Pull, (%) Au Recovery to conc, (%) Ag Recovery to conc, (%) Type
G&T Composite 1 0.70 0.62 0.009 3.968 13.3 80.1 77.3 Sulfide
G&T Composite 2 2.48 2.49 0.145 11.136 13.2 79.6 63.2 Transition
G&T Composite 3 2.29 2.28 0.076 11.872 12.2 82.7 61.9 Transition
G&T Composite 4 1.25 1.22 0.008 18.016 9.1 60.4 27.7 Sulfide
G&T Composite 5 1.50 1.40 0.045 0.496 12.9 83.1 83.6 Sulfide
G&T Composite 6 1.64 1.51 0.027 23.136 15.0 88.3 72.6 Sulfide
G&T Composite 7 1.36 1.29 0.010 9.504 15.7 94.5 37.8 Sulfide
G&T Composite 8 1.33 1.26 0.027 4.000 13.1 89.4 50.5 Sulfide
G&T Composite 9 4.30 3.81 0.021 0.602 16.5 86.5 88.5 Sulfide
G&T Composite 10 2.23 2.04 0.014 1.946 11.6 80.5 60.1 Sulfide
G&T Composite 11 2.80 2.72 0.027 8.064 17.8 88.1 53.9 Transition
G&T Composite 12 1.57 1.25 0.113 1.680 8.3 73.6 44.8 Oxide

 

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Sample ID

ST

(%)

S=

(%)

Au (oz/ton) Ag (oz/ton) Rougher Conc Mass Pull, (%) Au Recovery to conc, (%) Ag Recovery to conc, (%) Type
G&T Composite 13 2.32 2.02 0.065 1.472 11.6 56.1 68.2 Transition
G&T Composite 14 2.08 1.34 0.004 1.818 7.8 89.5 30.2 Sulfide
G&T Composite 15 1.78 1.71 0.043 5.376 10.8 94.0 63.2 Transition
G&T Composite 16 2.64 2.27 0.022 0.627 14.9 77.2 76.9 Sulfide
G&T Composite 17 0.45 0.34 0.093 0.198 5.2 28.1 27.5 Oxide
G&T Composite 18 1.33 1.08 0.014 0.074 11.8 58.7 61.2 Sulfide
G&T Composite 19 2.00 1.76 0.012 0.266 15.7 69.9 50.3 Sulfide
G&T Composite 20 13.70 11.80 0.045 0.992 31.2 93.7 87.1 Sulfide
G&T Composite 21 2.06 1.97 0.019 0.598 13.1 85.6 74.9 Sulfide
G&T Composite 22 1.73 1.70 0.025 0.464 13.1 61.2 60.7 Sulfide
G&T Composite 23 1.72 1.31 0.016 2.099 11.1 87.5 53.7 Sulfide
G&T Composite 24 2.00 1.92 0.024 3.584 15.5 85.4 38.9 Sulfide
Average Sulfides 2.56 2.25 0.020 4.246 14.2 80.7 60.7  
Average All 2.39 2.13 0.037 4.666 13.4 78.1 58.9  

 

Table 10-6: G&T Composites M-1 through M-17 Flotation Test Results

 

Sample ID

ST

(%)

S=

(%)

Au (oz/ton) Ag (oz/ton) Rougher Conc Mass Pull, (%) Au Recovery to conc, (%) Ag Recovery to conc, (%) Type
G&T Composite M-1 1.98 1.81 0.038 0.378 13.4 86.4 82.4 Sulfide
G&T Composite M-2 2.62 1.75 0.013 1.082 14.2 82.1 85.9 Sulfide
G&T Composite M-3 1.20 1.12 0.014 0.272 12.7 73.6 83.2 Sulfide
G&T Composite M-4 1.62 1.55 0.020 0.150 18.1 79.7 76.8 Sulfide
G&T Composite M-5 1.81 1.70 0.013 0.128 18.8 76.9 72.7 Sulfide
G&T Composite M-6 1.92 1.79 0.016 0.253 20.8 79.1 76.4 Sulfide
G&T Composite M-7 No Data - - - - - - -
G&T Composite M-8 No Data - - - - - - -
G&T Composite M-9 2.25 2.06 0.011 0.586 10.9 89.7 92.7 Sulfide
G&T Composite M-10 2.50 2.00 0.012 2.454 11.6 76.7 96.0 Sulfide
G&T Composite M-11 1.55 1.49 0.016 1.475 8.3 80.4 96.4 Sulfide
G&T Composite M-12 1.86 1.30 0.016 3.840 10.4 80.4 97.3 Sulfide
G&T Composite M-13 6.34 2.99 0.046 1.043 13.0 85.7 86.8 Sulfide
G&T Composite M-14 5.53 2.32 0.020 0.288 16.0 88.2 84.1 Transition
G&T Composite M-15 2.32 1.15 0.024 1.584 7.0 44.9 61.3 Oxide
G&T Composite M-16 2.51 2.43 0.017 0.486 14.3 74.6 87.8 Transition
G&T Composite M-17 1.52 1.39 0.017 0.259 16.1 65.1 62.8 Sulfide
Average Sulfides 2.26 1.75 0.019 0.993 14.0 79.7 84.1  
Average All 2.50 1.79 0.020 0.943 13.7 77.6 82.8  

 

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10.3.2.6Hazen Research, Inc. – August 2011

 

For this investigation, 38 drillhole composite samples representing five mineralized material types were evaluated. Initial flotation testing was conducted using sodium hydrosulfide (NaHS) and copper sulfate (CuSO4). In subsequent tests, the NaHS and CuSO4 were eliminated, and lead nitrate (Pb(NO3)2) was introduced as a modifying agent. Following the addition of modifying agents, flotation pH ranged from neutral to 10.5, and redox potential was monitored throughout the testing program.

 

A series of 91 small-scale flotation tests were performed on 4.4-lbs splits from the 38 composite samples. The objective of this testwork was to evaluate variability in flotation response among the composite samples.

 

An additional 41 small-scale flotation tests were subsequently performed on Composites 1 through 38, excluding Composites 6, 8, 9, and 10, using rougher flotations conditions based on G&T Metallurgical conditions and conditions recommended by Hazen. Rougher concentrate mass pulls ranged from 4.9% to 30.7%, with corresponding Au recoveries ranging from 26.9% to 97.6% and Ag recoveries ranging from 17.1% to 98.7%.

 

The rougher concentrate assays ranged from 0.032 oz/ton Au (Test 3346-82) to 1.536 oz/ton Au (Test 3346-40), and from 0.224 oz/ton Ag (Test 3346-82) to 73.601 oz/ton Ag (Test 3346-68). The recoveries of Au and Ag to the rougher concentrates ranged from 27% (Test 3346-52) to 91% (Test 3346-68) and from 17% (Test 3346-52) to 99% (Test 3346-68), respectively.

 

10.3.2.7Effect of Grind Size on Flotation Performance

 

Most flotation tests on Hycroft samples were performed on materials ground to 80% passing 100 µm. Additional tests were conducted at both finer and coarser grind sizes. Overall, the results indicate that flotation achieves favorable recoveries at grinds ranging from 100 to 150 µm. Gold and silver recoveries generally decreased with grind sizes finer than 100 µm or coarser than 150 µm.

 

10.3.2.8Reagent Suite

 

Both G&T and Hazen concluded that flotation tests using NaHS as a sulfurizing agent, as well as tests conducted at alkaline pH, generally resulted in poor flotation performance.

 

The exploratory and variability flotation test results discussed above demonstrate that sulfide mineralized materials can be floated to recover gold and silver. The reagents schemes employed relied on strong, non-selective sulfide collectors, with frothing achieved using methyl isobutyl carbinol (MIBC), Dowfroth 250 (DF250), or a combination of both. Table 10-7 summarizes the reagent schemes applied by G&T, SGS, and Hazen. In all laboratory test programs, the reagent dosages were relatively high.

 

Table 10-7: Flotation Reagent Schemes Studied

 

Reagent (lb/ton) G&T Laboratory Hazen SGS
NaHS - 0, 2.56 2.1
PAX 0.552 0.546, 0.416 0.21
3418A - 0, 0.064 - 0.124 0.055
MIBC 0.05 - 0.128, 0.192 0.02 - 0.064 -
DF250 - 0.02 - 0.064 0.095

 

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Based on the test results from the three laboratories, particularly G&T, the simplified reagent scheme can be further developed. Several tests indicate that Cytec’s AEROPHINE® 3418A Promoter (sodium diisobutyldithiophosphinate) may improve Au and Ag recoveries.

 

10.3.2.9Flotation Time

 

Flotation kinetics were not systematically evaluated during the flotation test programs. However, flotation data generated from the G&T testwork on the M Composites included recoveries from froth collected at 4, 8, 12, and 16 minutes. A total of 15 rougher flotation tests were performed. Kinetics plots for Au and Ag derived from this work are shown in Figure 10-1. To avoid visual clutter, only selected data points are shown, along with asymptotic recovery curves fitted to the data.

 

For each of the 15 datasets, the maximum recovery, Rmax and the kinetics constant, K were derived from the fitted asymptotic curves.

 

The results indicate that the average laboratory flotation time required to achieve 95% of the maximum recovery is 19 minutes for gold and 17 minutes for silver.

 

Figure 10-1: Recovery Vs. Time Plot, G&T Kamloops Tests, M Composites

 

Source: M3, 2016

 

10.3.2.10FLSmidth 2021

 

In 2021, Hycroft initiated a new metallurgical variability study to evaluate mineralized material characteristics within the current mine plan validate the metallurgical behavior of material across the mine site; and identify potential variations in processing conditions required to recover gold and silver. The objective of the study was to support development of a robust Hycroft process flowsheet, including definition of key process control points in crushing, grinding, capable of consistently achieving gold and silver recovery across anticipated metallurgical variability. Hycroft selected 243 Samples from 65 different drill holes, all within the current resource, representing the three primary metallurgical domains – Brimstone, Vortex, and Camel. The drill holes encompassed material ranging from near surface elevations to approximately 1,235 ft below current elevations (3,040 ft above mean sea level). Two primary lithologies were represented, corresponding to material located east and west of the Central Fault. The sample suite covered a broad range of alteration and mineralization characteristics, including four silicification intensities - Strong quartz-K-feldspar, strong quartz, moderate, and weak; two alunite styles based on vein width and frequency (used to estimate volume percent and validated by sulfide sulfur content; and gold grades ranging from slightly below the cutoff grade of 0.2 g/t to values exceeding above 2.0 g/t. oxide and transition ore types were not included in this study; it is envisioned that in the future, these materials will be processed in the heap leach pads. Figure 10-2 to Figure 10-5 present the head grade distribution plots for gold, silver, total sulfur, and sulfide sulfur, based on the full set of 243 variability study samples.

 

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Figure 10-2 to Figure 10-5 present the head grade distribution plots for gold, silver, total sulfur, and sulfide sulfur, based on the full set of 243 variability study samples.

 

Figure 10-2: Gold Grade Distribution Chart

 

Source: Hycroft, 2025

 

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Figure 10- 3: Silver Grade Distribution Chart

 

Source: Hycroft, 2025

 

Figure 10-4: Total Sulfur Grade Distribution

 

Source: Hycroft, 2025

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Figure 10-5: Sulfide Sulfur Grade Distribution

 

Source: Hycroft, 2025

 

The head grade distributions for gold, silver, total sulfur, and sulfide sulfur across the 243 variability study samples indicate a broad but well-represented range of metallurgical conditions within the current resource. Gold head grades exhibit a right-skewed distribution with an average of approximately 0.56 g/t and a standard deviation of 0.64 g/t, reflecting the inclusion of material spanning from near cutoff grades to higher-grade mineralization. Silver grades show a wider distribution, with an average of approximately 12.4 g/t and a higher standard deviation (14.3 g/t), indicating greater variability in silver tenor relative to gold.

 

Total sulfur and sulfide sulfur distributions demonstrate moderate variability, with average grades of approximately 2.60% total sulfur and 2.17% sulfide sulfur, and standard deviations of 2.00% and 1.64%, respectively. The close correspondence between total sulfur and sulfide sulfur indicates that sulfur is predominantly present as sulfide minerals, consistent with the refractory nature of the ore. Collectively, these distributions confirm that the variability study sample set adequately captures the range of grade and mineralogical conditions expected within the mine plan, providing a sound basis for evaluating metallurgical response and defining robust process design criteria.

 

Important results of this study included the development of the flotation process with significantly improved recoveries. There were four key process controls parameters identified during the flotation process development program.

 

1.Optimal grind size is a P80 of less than 85 µm.

 

2.Flotation time is 24 minutes.

 

3.Adjusted pH level is 4.7.

 

4.Mass Pull is 20% to 25% with 22% being the target.

 

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A total of 137 samples were tested under these selected conditions to achieve higher gold and silver recoveries. Figure 10-6 summarizes the distribution of gold and silver flotation recoveries achieved under the selected key process control conditions, based on 137 variability test samples. The results show that gold recovery exhibits a broader distribution, with values ranging from approximately 72% to 98% and a statistical median near 88%, indicating greater sensitivity to operating conditions. In contrast, silver recovery is generally higher and more consistent, with recoveries spanning approximately 76% to 100% and a statistical median exceeding 92%. Overall, the figures highlight the comparatively more robust flotation response of silver relative to gold under the selected operating conditions.

 

Figure 10-6: FLS Variability Flotation Recoveries under Optimal Conditions (137 Test Samples)

 

Source: Hycroft, 2025

 

Figure 10-7 and Figure 10-8 show that flotation recovery is only weakly correlated with head grade for both metals. Gold recoveries display greater variability within grade groups, particularly at lower head grades, indicating sensitivity to mineralogical and metallurgical factors beyond grade alone. In contrast, silver recoveries are consistently higher and more uniform across head grade groups, demonstrating a more robust and less grade-dependent flotation response.

 

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Figure 10-7: FLS Variability Flotation Gold Recoveries Based on Gold Head Grade Groups

 

Source: Hycroft, 2025

 

Figure 10-8: FLS Variability Flotation Silver Recoveries Based on Head Grade Groups

 

Source: Hycroft, 2025

 

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10.3.3Direct Cyanidation

 

Direct cyanidation testwork on bulk concentrate samples (P80 = 325 mesh, or 44 µm) collected from all zones of the deposit was conducted in early 2010. The results indicated generally poor metallurgical performance. Gold recoveries for the Brimstone and Vortex samples were in the mid-20% range, with silver recoveries of approximately 80%. The remaining samples yielded gold recoveries ranging from 45% to 50% and silver recoveries ranging from 55% to 83%.

 

A useful indicator of direct cyanidation amenability is the ratio of cyanide soluble metal to total metal assay, expressed as AuCN/AuFA for gold and AgCN/AgFA for silver. These ratios have been determined for many exploration samples and have been included in the resource database. The cyanide soluble gold ratio has been applied during resource estimation to assist in mineral classification and routing, with mineralized domains exhibiting higher cyanide soluble gold preferentially directed to heap leach processing.

 

10.3.4Concentrate Oxidation Tests

 

Oxidation testwork on Hycroft flotation concentrates evaluated POX, roasting, atmospheric oxidation, and other oxidation methods, all of which demonstrated technical viability with varying recoveries. The results of these tests are summarized below.

 

Beginning in 2007, Hycroft investigated milling and flotation of refractory sulfide mineralized material followed by oxide treatment, focusing primarily on POX, and roasting technologies commonly applied in the gold industry.

 

In 2012, additional testwork assessed alternative, low capital oxidation methods, including chlorination, atmospheric alkaline oxidation, and fine grinding with intensive cyanidation. These tests showed that the Hycroft rougher concentrates were amenable to oxidation under atmospheric conditions, leading to pilot scale testing on three main metallurgical domains at Hazen Research Inc.

 

In 2016, Hycroft developed an oxidation demonstration plant at the mine site to process flotation concentrates and produce doré onsite. Based on historical and current oxide heap leach performance, combined with oxide heap leach metallurgical testwork and bench-, pilot-, and demonstration-scale metallurgical test results, individual gold and silver recoveries for each processing stream were calculated and are presented in Table 10-8. This recovery assumption formed the basis of the 2016 NI 43-101 Feasibility Study Technical Report published in 2016 (Ibrado, A. et al, 2016).

 

Table 10-8: Estimated Metallurgical Recoveries from 2016 Feasibility Study – Gold and Silver

 

  Gold Silver
Contained koz Recovered koz Recovery (%) Contained koz Recovered koz Recovery (%)
Heap Leach 3,875 1,933 49.9 21,242 21,242 15.5
Mill-AAO Sulfide 7,797 5,696 73.0 287,693 287,693 81.6
Total 11,672 7,629 65.4 489,447 308,935 63.1

 

10.3.4.1Atmospheric Oxidation – Batch Tests

 

From 2013 through 2016, metallurgical testing focused on developing a process to oxidize sulfide flotation concentrates under atmospheric conditions. The process concept involved oxidation in an agitated slurry at elevated temperatures, using oxygen as the oxidant. Batch oxidation tests were conducted at Hazen under various conditions on concentrates derived from Central, Brimstone, and Vortex composites.

 

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The results demonstrated that complete oxidation is not required to achieve high precious metal recoveries during subsequent cyanide leaching, consistent with earlier oxidation studies. Cyanidation recoveries of approximately 85% for gold and 92% for silver were achieved when about 60% of the sulfide-sulfur content in the concentrate was oxidized.

 

Oxidation reaction kinetics improved with increasing temperatures up to 75°C. Tests conducted at higher temperatures (around 90°C) resulted in slower oxidation rates, due to reduced oxygen solubility under bench-scale laboratory conditions.

 

10.3.4.2Pilot Plant Oxidation Tests

 

Continuous pilot testing was conducted at Hazen using 10-liter reactors on concentrates from three metallurgical domains. The pilot results confirmed the batch test findings. Testing was performed at 75°C a grind size of 25 µm, 20% solids, and a total residence time of 48 hours. Oxidation rates varied by material type, with Vortex oxidizing most rapidly, followed by Central and then Brimstone. The Master Composite exhibited oxidation behavior comparable to Brimstone.

 

Key outcomes from the pilot testing include:

 

gold recovery versus sulfide oxidation was higher than indicated by bench-scale testing

 

approximately 80% gold recovery was achieved at 50% sulfide oxidation for all material types

 

approximately 87% gold recovery was achieved at 60% sulfide oxidation for all material types.

 

10.3.4.3Hycroft Mill Demonstration Plant

 

Hycroft Mining constructed and operated a demonstration plant with a nominal capacity of 10 tons/d at the Mine site. The integrated flowsheet comprised of a ball mill, rougher flotation bank, concentrate and tailings thickeners, a regrind mill, oxidation and neutralization tanks, an oxidized concentrate thickener, cyanide leach tanks, CCD thickeners, and a Merrill-Crowe precipitation circuit. The plant was operated continuously, with concentrate surge capacity upstream of oxidation and pregnant solution storage upstream of Merrill-Crowe.

 

The demonstration plant processed Central and Brimstone materials mined from exposed mineralization at the surface of the current open pit.

 

Key demonstration plant results for Central material are presented in Figure 10-9. For clarity, only data from Tank 1 (TK1) and Tank 5 (TK5) are shown. Sulfide oxidation levels of 60% or greater were consistently achieved when steady-state operating conditions were maintained.

 

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Figure 10-9: Oxidation of Central Flotation Concentrate: Sulfate Spike Test

 

Source: M3, 2019

 

Oxidation of the flotation concentrates resulted in a significant improvement in gold and silver recoveries compared to direct cyanidation. Cyanide leach recoveries of oxidized concentrates during demonstration plant operation are presented in Figure 10-10. The graph initially reflected Central concentrate processing and transition to Brimstone concentrates on June 11, 2016. Gold and silver recoveries for Central concentrate peaked at approximately 85%. For Brimstone concentrate, gold recovery reached approximately 80%, while silver recovery peaked at 90%. Overall recovery trends closely tracked the degree of concentrate oxidation.

 

Figure 10-10: Demonstration Plant Cyanide Leach Recovery of Au and Ag

 

Source: M3, 2019

 

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10.3.4.4Pressure Oxidation

 

Previous POX testwork was conducted primarily by Hazen and SGS on various flotation concentrates derived from Hycroft sulfide mineralized material, including individual samples, composites samples, and two transition material samples. POX testwork was performed under both alkaline and acidic conditions.

 

The following is a list of all POX testwork reports provided to Ausenco:

 

Hazen Project 11232 Report and Appendices A-F, POX-CIL Evaluation of Hycroft Flotation Concentrates.

 

Hazen Project 11243-01 Report and Appendix, Evaluation of Hycroft Blend Flotation Concentrate.

 

Hazen Project 11307 Report and Appendix, Evaluation of Kappes, Cassiday & Associates Flotation Concentrate.

 

SGS Project 13224-001/003 Final Report, An Investigation into Oxidative Pre-treatment of Hycroft Flotation Concentrates.

 

SGS Hycroft Project – 12012-001 Report 3, The Recovery of Au and Ag from Hycroft Project Sulfide Samples, Allied Nevada Gold Corporation.

 

Kappes, Cassidy & Associates Project No. 189 C, Hycroft Pressure Oxidation and Leach Testwork.

 

Previous acid POX testwork was conducted on flotation concentrates to establish suitable operating criteria. Table 10-9 summarizes the acid POX test results completed by Hazen, SGS and KCA.

 

The results indicate that the highest gold and silver cyanide amenability was achieved at (1) operating temperature between 374 °F to 437 °F, (2) an oxygen overpressure of approximately 100 psi, and (3) a residence time of 60 minutes. The POX test results also suggest that the concentrates may be prone to jarosites formation, which can inhibit silver recovery. Evidence for potential jarosite formation includes:

 

the acidic autoclave discharge pulp exhibited a yellow coloration, transitioning to reddish brown following lime boil conditioning

 

silver recovery was higher when the pulp was subjected to a lime boil, which exposed the hot pulp to alkaline conditions for several hours.

 

Table 10-9: Hycroft Alkaline POX Testwork Summary

 

Flotation Concentrates Samples Sulfide (Stotal) (wt%)

Gold

 

(ppm)

Silver

 

(ppm)

AC Temp

 

(°F)

Solids

 

(wt%)

AC Retention Time

 

(min)

Oxygen Over-pressure

 

(Psig)

Caustic Consumption

 

(lbs/ton)

Cyanide Conc. (wt%) Gold recovery
(%)
Silver recovery
(%)
Brimstone 40.1 11.6 418 437 20 256 40 5.41 2 98.5 72.9
40.1 11.6 418 212 40 360 40 6.05 2 54.3 71.2
Hycroft Blend Float Concentrate 38.5 18.1 2103 437 26 240 40 0.15 1 64.3 35.8
38.5 18.1 2103 437 26 240 40 1.45 2 63.8 52.0
38.5 18.1 2103 4372 26 240 40 2.95 5 63.8 82.1

 

The gold and silver recoveries from rougher flotation concentrate subjected to acid POX, followed by lime boil conditioning and cyanide leaching were in the mid-90% range for gold and approximately the mid-80% range for silver (Table 10-10).

 

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Acid POX followed by lime boil was evaluated during mineral resource development primarily due to its ability to consistently achieve high sulfide oxidation. Sulfide oxidation exceeding 95% is expected with POX, whereas AAO did not consistently achieve the target of 60%. As a result, gold and silver recoveries from POX residue are expected to be higher and more stable than those achieved using AAO. Additional factors for supporting the evaluation of POX included the following:

 

Limestone is a more cost-effective reagent for acid neutralization.

 

Cyanide consumption following pressure oxidation is lower than for AAO.

 

Soda ash was considered as an alternative to trona but was found to be less cost effective than limestone.

 

Table 10-10: Hycroft Acid POX Testwork Summary

 

Sulfide Concentrate
Samples Tested

Sulfide (S=)

 

(wt%)

Au (ppm) Ag1
(ppm)
Temp (°F)

Cyan. Conc.6

 

(ppt)

Sulfide Oxidation (%) Au recovery (%) Ag recovery (%) Test Lab
Brimstone 40.1 11.60 418 374 1 - 97.5 89.0 Hazen
Cut 4 36.9 11.40 168 374 1 - 94.0 94.1 Hazen
Camel 37.7 9.33 152 374 1 - 97.7 89.9 Hazen
Bay 22.1 6.03 52.3 374 1 - 97.5 75.3 Hazen
Bone Yard 31.9 5.97 95.3 374 1 - 96.0 86.0 Hazen
Hycroft Blend 38.5 18.10 2103 401 1 - 100.0 77.1 Hazen
Sulfide Master Ro 18.9 4.90 432 401 1 - 87.0 65.8 Hazen
Mixed Master Ro 9.3 8.50 193 401 1 - 82.8 86.4 Hazen
Central Blk Sul Ro 8.4 2.47 26 374 1 98.8 93.6 90.5 SGS
Central Blk Sul Cl 35.6 10.10 131 374 1 99.8 94.0 94.2 SGS
Vortex Blk Sul Ro 9.1 2.93 276 374 1 98.6 97.7 73.5 SGS
Vortex Blk Sul Cl 32.3 10.80 976 374 1 99.8 96.0 72.2 SGS
Central Sul Cl 30.7 10.30 750 374 1 98.1 93.5 81.9 SGS
Brimstone Sul Cl 34.7 7.93 392 374 1 83.6 53.6 49.5 SGS
Vortex Sul Cl 35.4 8.03 350 374 1 94.2 94.5 89.2 SGS
POX 1 Cl con F-162 31.1 5.93 158 437 1 98.8 71.8 5.5 SGS
POX 2 Cl con F-253 33.9 9.38 155 437 1 98.6 64.3 19.1 SGS
POX 3 Cl con F-264 24.2 4.95 165 435 1 97.6 72.7 72.7 SGS
Brimstone Sul Cl5 33.9 7.13 383 428 2 99.9 94.0 97.0 KCA

 

Note:

 

1.Fire Assay
2.No lime boil, no NaCl
3.No lime boil, 1.34 oz/g NaCl
4.No lime boil, 2.67 oz/g NaCl
5.H2SO4 added to autoclave feed
6.ppt = parts per trillion

 

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10.3.4.5Concentrate Oxidation Tests – Hazen 2025

 

In 2022 to 2025, Hycroft repeated flotation testing in preparation of concentrate for the POX Process Development program and achieved higher recovery rates with tighter controls on particle size, pH adjustment to 4.7, 24-minute conditioning time and 20% to 25% Mass Pull with a target of 22%.

 

A series of POX tests (POX-3 through POX-7) were conducted at Hazen Research, Inc. on pyrite flotation concentrate to evaluate oxidation performance and downstream precious metal recovery following hot cure, lime boil, and cyanide leaching. The objective of this test program was to establish repeatability, assess sensitivity to operating conditions, and confirm the effectiveness of the integrated POX–hot cure–lime boil–cyanidation flowsheet.

 

All POX tests were conducted in a 2-L titanium autoclave at a nominal temperature of 225°C, with oxygen overpressure of approximately 100 psig, and a total residence time of 90 minutes. The starting solution contained approximately 10 g/L H₂SO₄. Agitation speeds ranged from 1,000 to 1,020 rpm, and off-gas bleed rates were maintained at approximately 100 cm³/min.

 

Across POX-3 through POX-7, oxidation conditions were consistent and reproducible. No evidence of excessive passivation or runaway reactions was observed. The POX discharge slurries were subsequently subjected to hot cure to decompose basic iron sulfate phases prior to lime boiling and cyanide leaching.

 

10.3.4.6Hot Cure – Hazen 2025

 

Hot cure tests were conducted on pressure-oxidized slurry at 90–95°C for 12 hours with agitation. The purpose of this step was to decompose basic iron sulfate species formed during pressure oxidation and to condition the solids for effective jarosite breakdown during lime boiling.

 

Across POX-3 to POX-7, hot cure performance was stable, with temperature control maintained within ±1°C of target. Filtration following hot cure produced well-behaved filter cakes suitable for downstream processing. No washing was conducted after hot cure, consistent with the intended flowsheet configuration.

 

10.3.4.7Lime Boil – Hazen 2025

 

Lime boil tests were performed on hot-cured residues at 90–95°C under alkaline conditions (target pH approximately 11–11.5) to promote decomposition of jarosite and related basic iron sulfate phases. Residence times ranged from 4 hours to overnight, depending on the specific test objective.

 

Calcium hydroxide consumption varied across tests, reflecting differences in sulfate loading and the extent of iron sulfate formation during POX. Later tests (POX-6 and POX-7) incorporated extended lime boil durations and tighter pH control to ensure complete jarosite decomposition prior to cyanidation.

 

10.3.4.8Cyanide Leaching – Hazen 2025

 

Cyanide bottle roll leach tests were conducted on lime-boiled residues at ambient temperature using sodium cyanide concentrations ranging from 2.5 to 5.0 g/L, with activated carbon addition where indicated. Leach durations were typically 48 hours.

 

In several cases, a second lime boil and/or second cyanide leach was performed where the initial cyanidation indicated incomplete precious metal extraction, particularly for silver. This staged approach demonstrated that additional gold and silver recovery could be achieved when jarosite decomposition was completed prior to cyanidation.

 

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Overall, the combined results confirm that the integrated POX–hot cure–lime boil–cyanidation flowsheet is effective for achieving high gold and silver recoveries from the pyrite concentrate. Table 10-11 summarizes the POX 3 through POX 7 test results.

 

Table 10-11: Summary Comparison Table – POX 3 to POX-7

 

Test POX Temp
(°C)
O₂ Overpressure (psig)

Hot Cure

(°C/h)

Lime Boil

(°C/h)

NaCN

(g/L)

Au Extraction (%) Ag Extraction (%)
POX-3 225 100 90–93 / 12 90–95 / 4 5.0 ~91 ~95
POX-4 225 100 90–95 / 12 90–95 / overnight 5.0 >92 ~95
POX-5 225 100 90–95 / 12 90–95 / overnight 5.0 ~92 ~93
POX-6 225 100 90–93 / 12 90–95 / 4 5.0 ~93 ~88–90
POX-7 225 100 95 / 12 95 / 24+ 2.5–5.0 ~93 ~92

 

Note: Gold and silver extractions shown are combined values based on feed and final residues. Minor balance deviations are attributed to analytical uncertainty and low residual grades

 

The POX-3 through POX-7 test series demonstrates that pressure oxidation at 225°C with oxygen overpressure, followed by hot cure, lime boil, and cyanide leaching, is a robust and repeatable processing route for the pyrite concentrate. Variability in silver recovery was primarily associated with the completeness of jarosite decomposition, which was successfully addressed through extended lime boiling and staged cyanidation.

 

These results provide a defensible metallurgical basis for flowsheet development and recovery assumptions.

 

10.3.5Solid-Liquid Separation Tests

 

Several thickeners are included in the Hycroft flowsheet. Updated settling tests for these thickeners were conducted by Pocock Industrial, Inc. using samples generated during hydrometallurgical process development studies performed by Hazen Research, Inc.

 

Tested sample streams included:

 

rougher flotation concentrate

 

neutralized AAO circuit product (pre-leach)

 

cyanide-leached slurry (CCD feed)

 

rougher flotation tailings.

 

A summary of the settling test results is presented in Table 10-12 below.

 

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Table 10-12: Settling Test Results

 

Sample

Tested Feed Solids

(%)

Design Basis Net Feed Loading (ft2/gal/mmin.) Flocculant Dosage (lb/ton)

Predicted U’flow Density

(% solids)

Overflow Clarity, (ppm) TSS
Rougher Concentrate 7.47 – 14.79 0.87 – 1.37 0.12 – 0.13 40.6 – 49.1 150 – 318
Pre-Leach Oxidized Concentrate 7.52 – 7.75 0.68 – 0.92 0.11 – 0.17 35.0 – 41.0 150 – 329
CCD Feed 7.41 – 8.00 0.92 – 1.11 0.15 – 0.17 33.0 – 37.0 150 – 349
Rough Tailings 14.10 – 15.80 0.84 – 0.88 0.07 – 0.13 59.5 – 65.0 150 – 250

 

10.3.6Deleterious Elements

 

The deleterious element assay results for five bulk samples analyzed by Hazen Research Inc are presented in Table 10-13 below.

 

Table 10-13: Deleterious Element Assay

 

Sample ID Hg (ppm)
Cut 4 Bin-03, -08, and -18 4.19
Brimstone Bin-14 and -20 2.68
Camel Conglomerate Bin -26, -27, and -28 2.35
Boneyard Bin-9, -16, and -23 15.70
Bay Bulk Bin-7, -11, and -24 9.96

 

Mercury is present in the mineralized material at moderate to high levels and is a deleterious element that can negatively impact gold recovery. Mercury is managed through zinc precipitation, followed by retorting to capture and remove the mercury.

 

10.3.7Metallurgical Parameters for Process Design Criteria and Financial Analysis

 

Overall plant recovery is calculated by multiplying the flotation recoveries by the recoveries achieved in POX, cyanide leaching, and counter current decantation (CCD), by the refining recovery in Merrill-Crowe precipitation. The proposed process plant overall recoveries are presented in Table 10-14 below.

 

Table 10-14: Process Plant Overall Recovery Prediction

 

Element

Flotation Recovery

(%)

Cyanide Extraction

(%)

Refining Recovery

(%)

Overall Recovery

(%)

2023 Tech Report Overall Recovery (%)
Au 89.5 93.5 99.0 82.8 76.0
Ag 92.9 86.0 97.0 77.5 76.0

 

Note: Overall Recovery = (Flotation Recovery) x (POX and Cyanide Leach Recovery) x (Refining Recovery)

 

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11Mineral Resource Estimates

 

11.1Summary

 

Mineral resources for the Hycroft deposit were developed using conventional block modeling methods and open pit optimization software to estimate the component of mineralization that has reasonable prospect of eventual economic extraction (“RPEEE”). The mineral resource was developed in accordance with the US Securities and Exchange Commission Rule SK-1300 for Mineral Projects. The estimate of mineral resources reflects in-place mineralization as the point of reference. The Effective Date of the Resource Estimate is January 1, 2026. The MRE presented here supersedes any previously stated Mineral Resources for the Hycroft property.

 

The model was assembled by Ryan Rodney, C.P.G. of Hycroft. Independent Mining Consultants, Inc. (“IMC”) worked with Hycroft and reviewed the final model. IMC is an independent third party with necessary relevant experience and has checked and validated the mineral resource wherever possible, and is assuming responsibility for the published mineral resource, with John Marek P.E. acting as the Engineer of Record.

 

11.2Model Location

 

The block model is assembled in the existing local mine grid. That grid is rotated 15.85 degrees (left rotation looking down) compared to true north. Table 11-1 summarizes the block size and block limits.

 

Table 11-1: Block Size and Model Size

 

Model Location From Coordinates To Coordinates Number of Blocks
Easting Limit 13000 26000 325
Northing Limit 35440 54800 484
Elevation Limits 2200 6600 110
Block Size (Parent, subblock) 40 x 40 x 40 ft

 

The drillhole database and the block model are all in the mine grid. To the user, there does not appear to be a rotation because the mine grid is treated as if there were no rotation. The block size selection will be discussed in a later sub-section.

 

11.3Database

 

The drillhole database has been assembled over many years by multiple companies using at least four different drill methods. That history and the verification of the historical information have been discussed in previous sections. Additional drilling has been completed since the previous mineral resource with additional checking, and corrections have been completed on the historic database. The cutoff date for the drilling database is March 17, 2025, which represents the last data received from the 2024 drilling campaign.

 

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There are stockpiles and historical leach pads at the mine that are within the block model area. Many of those have been drilled after the original excavation by sonic or rotary methods. The stockpile holes have been used to estimate the stockpile and leach pad areas, only; they have not been used to estimate in-situ rock. In total, the Hycroft database contains 6,023 drillholes with 534,881 sample intervals amounting to 2,814,546 ft of drilling. Within the area of the block model, there are 5,813 drillholes with 516,901 drill intervals amounting to 2,668,616 ft of drilling. There has been 87,383 ft of drilling in 70 drill holes that have been added due to drilling or database correction since the previous mineral resource in March 2023. Table 11-2 summarizes the amount of drilling and assay information that was used to assemble the block model.

 

Table 11-2: Data Available for the Assembly of the Resource Model for Au, Ag, AuCn, Sulfide Sulfur

 

Number of Total in Model Stockpile Drilling Assays for Estimation After Removal of 1982-1987 Drilling
Holes 5,813 188 4,221
Assay Intervals 516,901 3,268 460,131
Au Fire Assays 488,222 2,354 433,422
Au Cn Assays 380,400 1,952 325,962
Ag Fire Assays 330,110 2,336 327,774
Ag Cn Assays 327,125 1,972 309,137
Sulfide Assays 39,058 2,450 39,058

 

The “Assays for Estimation After Removal of 1982-1987 Drilling” column indicates how much of the information was used to estimate measured and indicated class mineralization.

 

Sulfide sulfur levels have been estimated from a combination of three data sources. A set of sample composites were established by weighing pulp material from the drillholes to represent 25 ft composites from selected holes during 2011 and 2014. Specific holes were selected to provide coverage over the zone of the deposit being considered for flotation mill treatment. Those 25 ft samples were analyzed by LECO methods to determine sulfide sulfur percent by weight. In addition, all recent drilling in 2021 through mid-way through 2023 were assayed for sulfide sulfur using the LECO method on each 5 ft interval. Starting in the 2023 drilling campaign, LECO analyses were reverted to the 25 ft samples created from pulp samples. The three data sets were combined and then numerically distributed to 25 ft down-hole intervals. The combined sulfide sulfur LECO database inside the model contains 13,523 composites that are 25 ft long, averaging 1.66% sulfide sulfur.

 

There is additional multi-element ICP data available that was not used in the development of this resource model.

 

11.4Basic Statistics

 

The assay values of economic interest are gold, silver, and sulfide sulfur. This mineral resource estimate is based on utilizing the POX process for flotation concentrate treatment. Sulfide sulfur content is a key measurable indicator in the POX process with potential operating cost impacts. There is a direct correlation of sulfide sulfur content to lime and limestone consumption during the Hot Cure and Lime Boil steps after POX and prior to cyanide leaching.

 

In addition, the cyanide soluble assays of gold are of interest because they provide a basis to establish the best metallurgical process based on the ability of the gold to dissolve into cyanide solution.

 

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Table 11-3 presents the basic statistics of the assay database used to assemble the model. The stockpile assays are not included in the table and the assay data from 1982 through 1987 have been removed. The entire database listed in Table 11-3 was used for block grade estimation even though some of the assay values are located above current post mining topography. Drilling data from 1982 through 1987 was bias corrected and used to contribute to inferred class mineralization only. The cyanide data is represented as the ratio of cyanide gold divided by fire gold where the cyanide gold value exists and when fire gold is greater than or equal to 0.001 oz/ton.

 

Table 11-3: Assay Database (No Stockpile Assays, Inside the Model, and No Drilling from 1982 through 1987)

 

Commodity Number of Assays Mean
Grade
Standard Deviation Minimum Value Maximum Value
Fire Au 433,422 0.0063 oz/t 0.0145 0 oz/t 3.15 oz/t
CnAu/FaAu (ratio) 251,475 0.3431 ratio 0.3156 0 ratio 1.00 ratio
Ag 327,774 0.25 oz/t 5.20 0 oz/t 2,334 oz/t
Sulfide Sulfur in %, 25 ft Composites 13,486 1.65% 1.39% 0% 42.86%

 

 

Table 11-3 also illustrates that Au cyanide soluble ratio (CnAu/FaAu) data exists on 58% of the database. Total silver assays exist on 76% of the database. During later historic leach operations, cyanide Ag assays were generally completed, however fire Ag assays were not common. Estimation of total or fire Ag will consequently be limited by the smaller number of available assays. Cyanide Ag assays were not used for block grade estimation due to uncertainty in that data identified during checks of the certificates of assay.

 

Cyanide soluble gold assays were completed on approximately 75% of the intervals where there are gold fire assays. The ratio of cyanide soluble Au to fire assay Au (CnAu/FaAu) ratio has been used to estimate the intensity of oxidation within the deposit. Although not statistically optimum, the process is necessary and common in the industry. The ratio of cyanide soluble Au to fire assay Au is used in mine planning to allocate material to the proper treatment process. When the CnAu/FaAu is calculated, values over 1.0 are set back to 1.0. The basic statistics of CnAu/FaAu are also summarized on Table 11-3. In simple terms, the cyanide to fire ratio reflects the degree of oxidation in the rock mass.

 

The apparent loss of cyanide ratio data (75% assay to 58% ratio) is because a gold fire value of 0.001 oz/ton or greater was required to calculate a meaningful ratio. In many cases the cyanide assays and / or the fire assay reported as trace values. In those cases, the resulting cyanide ratio was either 0.0, 0.5, or 1.0. Those values are meaningless when determining the level of oxidation and the relative cyanide amenability of the fire gold assay and were removed from the estimation process.

 

11.5Geology

 

The geology of the Hycroft deposit has been presented in previous report sections. The primary occurrences which have control on the grade distribution at Hycroft are Lithology, Alteration, and Structure. Each has an impact on mineralization.

 

11.6Lithology

 

The following are the main lithology or rock types in the Hycroft deposit:

 

Alluvium.

 

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Tuffaceous Lake Bed Sediment, part of the TSG.

 

Camel Conglomerate, part of the TSG, and eroded from the Kamma Volcanics.

 

Kamma Volcanics, Tertiary, but older than the sulfur group conglomerates and sediments.

 

Auld Lang Syne (“ALS”), Jurassic laminated siltstone, the basement of the deposit.

 

The lithology interpretation was updated by Hycroft since the previous Technical Report. The primary change was a reduction in size of the TSG unit due to detailed review of the original geologic logging by Hycroft geologists. New wire frame solids were developed and used to code the model blocks to the nearest whole block. The main mineral hosts are the Camel and Kamma units; however, mineralization is found in all the lithologic units.

 

Interpreted solids representing the above rock types were provided by Hycroft and checked against logging by IMC. IMC found them appropriate for use in the development of the resource model. Figure 11-1 is an east–west cross-section illustrating the major rock types looking north.

 

Figure 11-1: East–West Cross-Section 44000-N Looking North, showing Lithology Types

 

Source: Hycroft, 2025

 

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11.7Alteration

 

Alteration consists of:

 

acid leach

 

argillic

 

silicic

 

propylitic

 

unaltered.

 

Hycroft provided alteration solids to IMC that have not been updated since the previous Technical Report. IMC checked those solids against the logged database and found them to be acceptable for use in development of the resource model. In summary, when propylitic alteration was encountered, boundary analysis and basic statistics indicated that it was statistically similar to the argillic altered material, and it was combined with argillic during block grade estimation.

 

Silicic alteration is common and tends to be deeper and generally more prevalent in the eastern portion of the deposit. Boundary and statistical analysis indicate that the silicic altered material is generally higher grade than the argillic-propylitic altered rock. Figure 11-2 is an east–west cross-section through the interpreted alterations, looking north.

 

Figure 11-2: East–West Cross-Section 44000-N Looking North, showing Alterations

 

Source: Hycroft, 2025

 

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11.8Structure

 

Several north–south striking basin and range faults cut through the Hycroft deposit. In addition to those faults, the deposit is cut by the Ramp Fault and the west dipping East Fault. The East Fault is interpreted to be a thick shear zone and appears to be the orientation and probably the conduit of mineralization in the eastern portion of the deposit. The footwall of the East Fault has minor low-grade mineralization in the Kamma formation.

 

Figure 11-3 is a map view of the faults and the numbering system assigned to the fault blocks between the faults. The fault block numbers will be used to define the domains and search parameters for block grade estimation.

 

There are additional interpreted faults through the deposit, but after review by the Hycroft geology and modeling team, the faults and fault blocks on Figure 11-3 were selected as those that had impact or control on the mineralization

 

Figure 11-3: Structure and Domain Interpretation (plan view)

 

Source: Hycroft, 2025

 

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11.9Domains

 

Domains for grade estimation are a combination of structure, alteration, and lithology. The domain boundaries were developed by studying the basic statistics by Hycroft and by boundary analysis completed by IMC to confirm the domain interpretation.

 

Boundary analysis selects the assay (or composite) information from both sides of the boundary being tested at several different separation distances. IMC then completes a series of statistical hypothesis tests to confirm if the data on either side of the boundary could have come from the same or different statistical populations.

 

As a result of the work described above, the selected 22 domains are summarized on Table 11-4. In addition to the domains created from boundary analysis, Hycroft identified and created 16 additional discrete domains to represent high-grade (greater than or equal to 4 opt) silver veins. The silver domains create additional boundaries which isolate the higher-grade veins from the lower grade disseminated silver to prevent too much smearing during estimation. The domains are identified in Table 11-5, where 6,000 series represent the Vortex area, and 7,000 series represent the Brimstone area. Figure 11-4 shows the location of the high-grade silver domains. These domains are treated as hard boundaries where composites outside the boundary do not influence the inside, and the composites inside do not influence outside the boundary.

 

Sulfide sulfur utilized a different set of domains based on similar analysis as applied to gold and silver. There are three domains for sulfide sulfur illustrated on Table 11-6.

 

Table 11-4: Population Domains for Grade Estimation

 

Domain Name Structure Block Lithology Alteration Description
Alluvium All Alluvium All Alluvium
TSG_seds All TSG All Tertiary Lake Bed Sediments (TSG)
auld lang syne All ALS All ALS formation
acid leach All All Acid Leach Acid Leach Alteration
domain_1_arg_prop 1 Kamma+Camel Argillic+Propylitic West of the Range Fault, North of the Camel Fault
domain_1_silicic 1 Kamma+Camel Silicic West of the Range Fault, North of the Camel Fault
domain_1_unaltered 1 Kamma+Camel Unaltered West of the Range Fault, North of the Camel Fault
Domain_2_arg_prop 2 Kamma+Camel Argillic+Propylitic Between Range and Central Faults, North of the Camel Fault
domain_2_silicic 2 Kamma+Camel Silicic Between Range and Central Faults, North of the Camel Fault
domain_2_unaltered 2 Kamma+Camel Unaltered Between Range and Central Faults, North of the Camel Fault
domain_3_arg_prop 3 Kamma+Camel Argillic+Propylitic Between Central and East, Albert Fault, North of the Camel Fault
domain_3_silicic 3 Kamma+Camel Silicic Between Central and East, Albert Fault, North of the Camel Fault
domain_3_unaltered 3 Kamma+Camel Unaltered Between Central and East, Albert Fault, North of the Camel Fault
domain_4_arg_prop 4 Kamma+Camel Argillic+Propylitic East of East Fault, South of the Ramp Fault

 

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Domain Name Structure Block Lithology Alteration Description
domain_4_silicic 4 Kamma+Camel Silicic East of East Fault, South of the Ramp fault
domain_4_unaltered 4 Kamma+Camel Unaltered East of East Fault, South of the Ramp fault
domain_5_arg_prop 5 Kamma+Camel Argillic+Propylitic South of the Camel Fault, West of the East Fault
domain_5_silicic 5 Kamma+Camel Silicic South of the Camel Fault, West of the East Fault
domain_5_unaltered 5 Kamma+Camel Unaltered South of the Camel Fault, West of the East Fault
domain_6_arg_prop 6 Kamma+Camel Argillic+Propylitic East of Albert Fault, North of Ramp fault
domain_6_silicic 6 Kamma+Camel Silicic East of Albert Fault, North of Ramp fault
domain_6_unaltered 6 Kamma+Camel Unaltered East of Albert Fault, North of Ramp fault

 

Table 11-5: High-grade Silver Vein Domains

 

Domain Name Structure Block Lithology Alteration Description
ag_6001 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6002 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6003 3,4 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6004 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6005 3,4 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6006 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6007 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6008 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6009 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6010 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6011 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_6012 3 Kamma Argillic+Propylitic+Silicic Vortex High-grade silver vein
ag_7001 3 Kamma Argillic+Propylitic+Silicic Brimstone High-grade silver vein
ag_7002 3 Kamma Argillic+Propylitic+Silicic Brimstone High-grade silver vein
ag_7004 3 Kamma Argillic+Propylitic+Silicic Brimstone High-grade silver vein
ag_7005 3 Kamma Argillic+Propylitic+Silicic Brimstone High-grade silver vein

 

Table 11-6: Sulfide Domains

 

Sulfide Domain Number Structure Block Lithology Alteration Description
1 All All Acid Leach Alluvium
2 3,4,6 All All East of the Central fault
4 1,2,5 All All West of the Central fault flat dipping

 

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Figure 11-4: Structure and Domain Interpretation with Silver Wireframes (plan view)

 

Source: Hycroft, 2025

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 110

 

11.10Assay Caps

 

Prior to grade estimation, high-grade outliers were capped to limit undue impact on block grade estimation. Histograms were studied by Hycroft within each of the domains to set cap values. IMC spot checked the cap values using cumulative frequency plots. In all cases, only a small percentage of high valued samples were capped, generally less than 0.5% of the database. Table 11-7 summarizes the cap values that were applied to assays prior to calculating composites.

 

Table 11-7: Assay Cap Values

 

Domain Gold Cap Value (opt) Silver Cap Value (opt)
Alluvium 0.10 3
TSG_Seds 0.06 7
Auld Lang Syne 0.07 4
Acid Leach 0.25 5
domain_1_arg_prop 0.07 5
domain_1_silicic 0.09 15
domain_1_unaltered 0.06 3
Domain_2_arg_prop 0.36 12
domain_2_silicic 0.55 34
domain_2_unaltered 0.04 2.5
domain_3_arg_prop 0.35 30
domain_3_silicic 0.65 55
domain_3_unaltered 0.05 10
domain_4_arg_prop 0.07 6
domain_4_silicic 0.15 15
domain_4_unaltered 0.07 2
domain_5_arg_prop 0.03 0.5
domain_5_silicic 0.04 3.5
domain_5_unaltered 0.03 1
domain_6_arg_prop 0.06 1.5
domain_6_silicic 0.12 30
domain_6_unaltered 0.07 4
ag_6001 na 12
ag_6002 na 14
ag_6003 na 35
ag_6004 na 15
ag_6005 na 8
ag_6006 na 20
ag_6007 na 12
ag_6008 na 14
ag_6009 na 25

 

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Domain Gold Cap Value (opt) Silver Cap Value (opt)
ag_6010 na 20
ag_6011 na 8
ag_6012 na 20
ag_7001 na 300
ag_7002 na 15
ag_7004 na 60
ag_7005 na 9

 

The gold cyanide to fire assay ratio was capped at 1.0 to assure that there were no values with cyanide assay greater than fire assay when estimating the model.

 

In all cases above, the stockpile drilling and the drilling in the Crofoot leach pad were excluded from the analysis as they do not represent in-situ mineralization.

 

Sulfide cap values were applied to the original sulfide data prior to compositing. The cap levels by sulfide domain are summarized on Table 11-8.

 

Table 11-8: Sulfide Cap Values Prior to Compositing

 

Alteration Structure Blocks Lithology Sulfide Cap Level % Sulfide
Acid Leach All All 12.00%
Argilic All All 17.00%
Propylitic All All na
Silicic All All 28.00%
Unaltered All All 12.00%

 

11.11Bench Height Confirmation

 

A test was completed to confirm the selection of bench height for the model. The assay database was composited into alternative bench height intervals of 20 ft to 50 ft in 5-ft intervals. For each set of composites, the number of composites above cutoff and the average grade of those composites above cutoff were calculated. The number of composites multiplied by the average grade is used as an approximation of contained metal above cutoff. Multiple cutoffs of 0.001 through 0.007 oz/ton Au were tested at each of the bench heights. The stockpile and leach pad drilling were not included in the analysis.

 

Figure 11-5 indicates that the gold grade is not particularly sensitive to bench height and the selected bench height of 40 ft is a reasonable value considering the relatively high ore production rate being considered at Hycroft (nearly 60,000 t/d).

 

Future work could consider increasing the bench height to 50 ft, but 50 ft is only about a 1.2% improvement over the contained metal at 40 ft.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 112

 

Figure 11-5: Bench Height Analysis

 

Source: IMC, 2025

 

11.12Composites

 

Downhole (length) composites were created from the capped, raw assay values for input to block grade estimation. Composite lengths of 40 ft were used for gold and silver estimation outside of the silver veins. Within the silver veins, the composite length was set to 10 ft due to the narrow width of the interpreted veins.

 

The capped assays were composited at 40 ft down-hole intervals, respecting the alteration and mineral domain boundaries described above. A minimum of 20 ft was required for a composite and anything less than 20 ft was applied to the previous interval. Table 11-9 summarizes the basic statistics of the composited assay data.

 

Table 11-10 summarizes the basic statistics of the composited sulfide-sulfur data as 25 ft composites.

 

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Table 11-9: Basic Statistics of Composites, In-Situ Rock, Eliminating Years 1982 to 1987

 

Domain Number Structure Block Code Lithology Alteration Statistics Summary for Composites
Statistic Au oz/ton Ag oz/ton CnAu/ AuFa Ratio
alluvium All Alluvium All N = 2,644 1,849 1,058
Mean = 0.0028 0.0873 0.5370
Max = 0.0508 1.6595 1
Std = 0.0039 0.1134 0.26
TSG_seds All TSG All N = 1,465 1,254 363
Mean = 0.0025 0.0882 0.2380
Max = 0.0336 4.2323 1
Std = 0.0042 0.1814 0.214
auld lang syne All ALS All N = 49 51 9
Mean = 0.0014 0.0410 0.2700
Max = 0.0105 0.2061 0.45
Std = 0.0019 0.0428 0.132
acid leach All All Acid Leach N = 5,401 1,621 3,486
Mean = 0.0048 0.0888 0.6070
Max = 0.1245 1.9186 1
Std = 0.0076 0.1645 0.252
domain_1_arg_prop 1 Kamma+Camel Argillic+Propylitic N = 373 352 80
Mean = 0.0020 0.0745 0.1950
Max = 0.0198 1.0011 0.688
Std = 0.0032 0.0858 0.17
domain_1_silicic 1 Kamma+Camel Silicic N = 824 795 513
Mean = 0.0071 0.1983 0.1210
Max = 0.0476 6.4177 1
Std = 0.0065 0.4468 0.167
domain_1_unaltered 1 Kamma+Camel Unaltered N = 305 306 44
Mean = 0.0017 0.0918 0.4180
Max = 0.0205 1.1522 0.863
Std = 0.003 0.1271 0.258
Domain_2_arg_prop 2 Kamma+Camel Argillic+Propylitic N = 4,461 3,169 1,941
Mean = 0.0040 0.0932 0.4100
Max = 0.1091 4.8678 1
Std = 0.0066 0.2059 0.287

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 114
Domain Number Structure Block Code Lithology Alteration Statistics Summary for Composites
Statistic Au oz/ton Ag oz/ton CnAu/ AuFa Ratio
domain_2_silicic 2 Kamma+Camel Silicic N = 10,458 7,120 8,503
Mean = 0.0100 0.1895 0.3220
Max = 0.3368 11.5751 1
Std = 0.0101 0.4312 0.27
domain_2_unaltered 2 Kamma+Camel Unaltered N = 151 128 49
Mean = 0.0030 0.0800 0.3330
Max = 0.0328 0.8482 1
Std = 0.0046 0.132 0.274
domain_3_arg_prop 3 Kamma+Camel Argillic+Propylitic N = 7,101 5,944 2,386
Mean = 0.0033 0.1091 0.3090
Max = 0.1395 5.9384 1
Std = 0.0062 0.2488 0.253
domain_3_silicic 3 Kamma+Camel Silicic N = 16,860 13,688 12,995
Mean = 0.0085 0.3065 0.2780
Max = 0.251 36.5706 1
Std = 0.0094 0.6761 0.247
domain_3_unaltered 3 Kamma+Camel Unaltered N = 723 384 363
Mean = 0.0023 0.1048 0.5680
Max = 0.0349 3.5645 1
Std = 0.0034 0.2502 0.294
domain_4_arg_prop 4 Kamma+Camel Argillic+Propylitic N = 1,203 1,146 224
Mean = 0.0017 0.0738 0.3990
Max = 0.0338 1.932 1
Std = 0.0028 0.1335 0.275
domain_4_silicic 4 Kamma+Camel Silicic N = 1,232 995 563
Mean = 0.0040 0.1787 0.3980
Max = 0.0604 3.9584 1
Std = 0.0051 0.3188 0.29
domain_4_unaltered 4 Kamma+Camel Unaltered N = 283 259 55
Mean = 0.0012 0.0290 0.3850
Max = 0.0323 0.6248 0.935
Std = 0.003 0.0558 0.186
domain_5_arg_prop 5 Kamma+Camel Argillic+Propylitic N = 107 100 11
Mean = 0.0008 0.0830 0.3170
Max = 0.0193 0.2503 0.7
Std = 0.0025 0.0349 0.25
domain_5_silicic 5 Kamma+Camel Silicic N = 207 198 50
Mean = 0.0021 0.0914 0.1760
Max = 0.0214 0.7186 0.863
Std = 0.0039 0.0958 0.203

 

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Domain Number Structure Block Code Lithology Alteration Statistics Summary for Composites
Statistic Au oz/ton Ag oz/ton CnAu/ AuFa Ratio
domain_5_unaltered 5 Kamma+Camel Unaltered N = 94 93 -
Mean = 0.0004 0.0797 -
Max = 0.003 0.2559 -
Std = 0.0005 0.0381 -
domain_6_arg_prop 6 Kamma+Camel Argillic+Propylitic N = 896 774 83
Mean = 0.0009 0.0696 0.4590
Max = 0.0298 0.3795 1
Std = 0.0018 0.0529 0.311
domain_6_silicic 6 Kamma+Camel Silicic N = 583 496 225
Mean = 0.0041 0.1869 0.2690
Max = 0.0382 10.7052 1
Std = 0.0051 0.5849 0.241
domain_6_unaltered 6 Kamma+Camel Unaltered N = 161 136 97
Mean = 0.0037 0.1936 0.5050
Max = 0.0199 1.175 0.906
Std = 0.0039 0.2161 0.177
ag_6001 3 Kamma Argillic+Propylitic+Silicic N = na 41 na
Mean = na 4.2624 na
Max = na 12 na
Std = na 3.4599 na
ag_6002 3 Kamma Argillic+Propylitic+Silicic N = na 18 na
Mean = na 5.3505 na
Max = na 11.8884 na
Std = na 2.9268 na
ag_6003 3,4 Kamma Argillic+Propylitic+Silicic N = na 18 na
Mean = na 8.8920 na
Max = na 26.8903 na
Std = na 9.1648 na
ag_6004 3 Kamma Argillic+Propylitic+Silicic N = na 12 na
Mean = na 6.6931 na
Max = na 15 na
Std = na 4.9057 na
ag_6005 3,4 Kamma Argillic+Propylitic+Silicic N = na 12 na
Mean = na 4.2462 na
Max = na 8 na
Std = na 2.4865 na

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 116

 

Domain Number Structure Block Code Lithology Alteration Statistics Summary for Composites
Statistic Au oz/ton Ag oz/ton CnAu/ AuFa Ratio
ag_6006 3 Kamma Argillic+Propylitic+Silicic N = na 15 na
Mean = na 7.7032 na
Max = na 18.3126 na
Std = na 5.1522 na
ag_6007 3 Kamma Argillic+Propylitic+Silicic N = na 25 na
Mean = na 5.3803 na
Max = na 11.1771 na
Std = na 3.2084 na
ag_6008 3 Kamma Argillic+Propylitic+Silicic N = na 23 na
Mean = na 4.5142 na
Max = na 13.0085 na
Std = na 3.5674 na
ag_6009 3 Kamma Argillic+Propylitic+Silicic N = na 34 na
Mean = na 8.9273 na
Max = na 25 na
Std = na 6.6283 na
ag_6010 3 Kamma Argillic+Propylitic+Silicic N = na 40 na
Mean = na 6.0614 na
Max = na 20 na
Std = na 5.3179 na
ag_6011 3 Kamma Argillic+Propylitic+Silicic N = na 22 na
Mean = na 4.3523 na
Max = na 8 na
Std = na 1.656 na
ag_6012 3 Kamma Argillic+Propylitic+Silicic N = na 29 na
Mean = na 5.9920 na
Max = na 18.645 na
Std = na 5.5774 na
ag_7001 3 Kamma Argillic+Propylitic+Silicic N = na 79 na
Mean = na 25.4563 na
Max = na 157.5105 na
Std = na 36.8384 na
ag_7002 3 Kamma Argillic+Propylitic+Silicic N = na 14 na
Mean = na 4.8935 na
Max = na 15 na
Std = na 4.3965 na

 

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Domain Number Structure Block Code Lithology Alteration Statistics Summary for Composites
Statistic Au oz/ton Ag oz/ton CnAu/ AuFa Ratio
ag_7004 3 Kamma Argillic+Propylitic+Silicic N = na 11 na
Mean = na 11.0018 na
Max = na 52.5782 na
Std = na 18.7548 na
ag_7005 3 Kamma Argillic+Propylitic+Silicic N = na 8 na
Mean = na 4.5161 na
Max = na 6.2646 na
Std = na 1.4602 na

 

Table 11-10: Basic Statistics of 25 ft Sulfide Composites by Sulfide Domain

 

Sulfide Domain Number Structure Blocks Lithology Alteration Basic Statistics of 25ft Composites
1 All All Acid Leach N = 319
Mean = 1.94
Max = 12.00
Std = 2.36
2 3,4,5,6 All All N = 8,544
Mean = 1.54
Max = 28.00
Std = 1.45
4 1,2,5 All All N = 4,623
Mean = 1.82
Max = 26.20
Std = 1.14

 

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11.13Variography

 

Variograms were prepared and analyzed by mineralized domain during earlier mineral resource work. The guidance for search orientation and distance that was developed from that work has been applied to the grade assignment techniques applied to this model. A few illustrative variograms have been prepared using the database and domain boundaries applied to this model to provide support to the selected search parameters.

 

Figure 11-6: Gold Variograms for Silicic Material Between the Central Fault and East Fault

 

 

Source: IMC, 2023

 

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Figure 11-7: Gold Variograms for Silicic Material Between the Range Fault and Central Fault

 

 

Source: IMC, 2023

 

11.14Block Grade Estimation

 

Block grade estimation was broken into four groups of estimates: gold, silver, cnratau, sulfide-sulfur. The boundaries and controls on each of the four were different as might be expected with the differences in geologic occurrence in each case.

 

11.14.1Gold

 

Gold estimations utilized the 22 domains defined previously. Those domain boundaries were treated as “hard” boundaries during estimation. The estimation used the 40 ft composites noted earlier and inverse distance cubed (1/d3) as the estimation method. Search parameters are provided on Table 11-11.

 

The grade estimation used a maximum of ten composites with a maximum of three composites from one hole. A single composite could be used to assign a block grade, but that grade would be considered as inferred category (Class is discussed later in this section).

 

Test runs of ordinary kriging have been applied in previous models. The intent of selecting the inverse distance method was to develop a better planning model with less smoothing during block estimation and to provide an estimate of block values that would be predictive of actual mine head grades once appropriate mining cutoffs were applied.

 

Block gold grade estimation was done in two estimation passes:

 

1.Block grades were estimated without the 1982 to 1987 drilling, applying the methods described here in text.

 

2.The mineral resource classes of Measured, Indicated, and Inferred were established without the use of the 1982-1987 data.

 

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A second pass of gold block grade estimation was made incorporating the 1982 to 1987 data after the bias correction of 0.56 was applied. Any blocks that were added in addition to those in Step 1 above were coded as Inferred.

 

11.14.2Silver

 

Silver utilized the 38 domains defined previously. Those domain boundaries were treated as “hard” boundaries during estimation. As discussed earlier, silver composites were broken by domain boundaries where high-grade silver mineralization occurs, the composites are set to 10ft length inside the high-grade domains and 40 ft and outside of the high-grade zones. Silver was estimated using inverse distance cubed (1/d3) methodology.

 

The estimation strategy within the high-grade domains used a three-pass approach incorporating a small ellipse in the first pass and a larger ellipse in the subsequent passes. Outside of the high-grade domains, the estimation used a one pass approach. Search parameters are provided on Table 11-11.

 

Two domains that are not inside the high-grade structures, incorporated a high-grade search limit where composites above a certain grade were capped again beyond a specified search distance. This process includes the high-grade values but limits their extent to minimize high-grade smearing over neighboring low-grade values.

 

Table 11-11: Grade Estimation Parameters for Au, Ag

 

Domain Variable

Ellipsoid Ranges

(m)

Ellipsoid Directions

(°)

Composite Counts Drill Hole Limit HG Restrictions
Max Interm Min Dip Dip Azimuth Pitch Min Max Max per opt Search Limit (ft)
Alluvium Au 150 150 25 0 270 0 1 10 3 na na
Ag 150 150 25 0 270 0 1 10 3 na na
TSG_seds Au 270 270 50 0 270 0 1 10 3 na na
Ag 270 270 50 0 270 0 1 10 3 na na
auld lang syne Au 150 150 50 40 285 0 1 10 3 na na
Ag 150 150 50 40 285 0 1 10 3 na na
acid leach Au 270 270 50 0 270 0 1 10 3 na na
Ag 270 270 50 0 270 0 1 10 3 na na
domain_1_arg_prop Au 150 150 50 0 270 0 1 10 3 na na
Ag 150 150 50 0 270 0 1 10 3 na na
domain_1_silicic Au 300 300 50 0 270 0 1 10 3 na na
Ag 300 300 50 0 270 0 1 10 3 na na
domain_1_unaltered Au 150 150 50 0 270 0 1 10 3 na na
Ag 150 150 50 0 270 0 1 10 3 na na
Domain_2_arg_prop Au 250 250 50 0 270 0 1 10 3 na na
Ag 250 250 50 0 270 0 1 10 3 na na
domain_2_silicic Au 300 300 50 0 270 0 1 10 3 na na
Ag 300 300 50 0 270 0 1 10 3 na na

 

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Domain Variable

Ellipsoid Ranges

(m)

Ellipsoid Directions

(°)

Composite Counts Drill Hole Limit HG Restrictions
Max Interm Min Dip Dip Azimuth Pitch Min Max Max per opt Search Limit (ft)
domain_2_unaltered Au 150 150 50 0 270 0 1 10 3 na na
Ag 150 150 50 0 270 0 1 10 3 na na
domain_3_arg_prop Au 300 300 50 40 285 0 1 10 3 na na
Ag 300 300 50 40 285 0 1 10 3 20 50
domain_3_silicic Au 300 300 50 40 285 0 1 10 3 na na
Ag 300 300 50 40 285 0 1 10 3 20 50
domain_3_unaltered Au 150 150 50 40 285 0 1 10 3 na na
Ag 150 150 50 40 285 0 1 10 3 na na
domain_4_arg_prop Au 250 250 50 40 285 0 1 10 3 na na
Ag 250 250 50 40 285 0 1 10 3 na na
domain_4_silicic Au 300 300 50 40 285 0 1 10 3 na na
Ag 300 300 50 40 285 0 1 10 3 na na
domain_4_unaltered Au 150 150 50 40 285 0 1 10 3 na na
Ag 150 150 50 40 285 0 1 10 3 na na
domain_5_arg_prop Au 250 250 50 0 270 0 1 10 3 na na
Ag 250 250 50 0 270 0 1 10 3 na na
domain_5_silicic Au 300 300 50 0 270 0 1 10 3 na na
Ag 300 300 50 0 270 0 1 10 3 na na
domain_5_unaltered Au 150 150 50 0 270 0 1 10 3 na na
Ag 150 150 50 0 270 0 1 10 3 na na
domain_6_arg_prop Au 250 250 50 40 285 0 1 10 3 na na
Ag 250 250 50 40 285 0 1 10 3 na na
domain_6_silicic Au 300 300 50 40 285 0 1 10 3 na na
Ag 300 300 50 40 285 0 1 10 3 na na
domain_6_unaltered Au 150 150 50 40 285 0 1 10 3 na na
Ag 150 150 50 40 285 0 1 10 3 na na
ag_6001 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6002 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6003 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na

 

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Domain Variable

Ellipsoid Ranges

(m)

Ellipsoid Directions

(°)

Composite Counts Drill Hole Limit HG Restrictions
Max Interm Min Dip Dip Azimuth Pitch Min Max Max per opt Search Limit (ft)
ag_6004 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6005 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6006 pass 1 120 60 30 50 300 90 2 12 2 na na
pass 2 180 90 45 50 300 90 2 12 2 na na
pass 3 240 120 60 50 300 90 1 12 na na na
ag_6007 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6008 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6009 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6010 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6011 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_6012 pass 1 120 60 30 20 270 90 2 12 2 na na
pass 2 180 90 45 20 270 90 2 12 2 na na
pass 3 240 120 60 20 270 90 1 12 na na na
ag_7001 pass 1 120 60 30 50 300 90 2 12 2 na na
pass 2 180 90 45 50 300 90 2 12 2 na na
pass 3 240 120 60 50 300 90 1 12 na na na
ag_7002 pass 1 120 60 30 50 300 90 2 12 2 na na
pass 2 180 90 45 50 300 90 2 12 2 na na
pass 3 240 120 60 50 300 90 1 12 na na na
ag_7004 pass 1 120 60 30 50 300 90 2 12 2 na na
pass 2 180 90 45 50 300 90 2 12 2 na na
pass 3 240 120 60 50 300 90 1 12 na na na
ag_7005 pass 1 120 60 30 50 300 90 2 12 2 na na
pass 2 180 90 45 50 300 90 2 12 2 na na
pass 3 240 120 60 50 300 90 1 12 na na na

 

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11.14.3Cyanide Ratio

 

About 75% of the assay database for fire gold was also assayed for cyanide soluble gold. The cyanide soluble assay is a direct indication of the cyanide amenability of the mineralized material to gold and silver recovery by cyanidation. Much of the upper portion of the deposit received cyanide soluble assays for gold and silver.

 

CnAu/FaAu was used to indicate cyanide amenability. The ratio, where it is available, can be interpreted as an indication of oxidation that has occurred in the rock mass.

 

The domains selected for gold and silver mineralization (previously shown in Table 11-4) reflect the original hydrothermal mineralization. The cyanide ratio however reflects the oxidation process as a secondary impact.

 

A review of cross-sections of the cyanide ratio data indicated two populations of cnratau:

 

1.A generally horizontal band near topography reflecting surface water and oxidation that looks like a conventional oxidation blanket.

 

2.Isolated values at depth that likely reflect oxidation downward along structure with limited later extent.

 

To estimate cnratau, a boundary was developed between the upper oxide blanket and the lower structural controlled oxidation. This was completed by visual analysis of cnratau cross-sections.

 

The boundary surface was defined as a horizontal plane on the 4,000 ft. elevation from the eastern edge of the model to the 19,000 East line. From there the surface trends upward to the 4,400 ft. elevation at the 21,000 East line. From 21,000 east to the east edge of the model, the 4400 ft. elevation is applied. Blocks above the surface were coded with a value of 1 in a variable called “Contrat”. Blocks below the surface were coded with a Contrat value of 2.

 

Table 11-12 summarizes the parameters used to estimate the cnratau within each block. Once the ratio was assigned, block values of cyanide soluble Au could be calculated where required. Composite requirements: max =10, min =1, max per hole =3.

 

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Table 11-12: Estimation Parameters for Cyanide Ratio, All Three Domains utilized 1/D3

 

Cn Ratio Domain “Contrat” Structure Block Code Description Parameters Applied to 40 ft Composites
Variable Orientation, Degrees Search Radii, Ft. Maximum Composites per Drillhole
Dip Dir Plunge Rotation Prim Second Perpend
1 All Near Surface Oxidation cnratau 0 0 0 700 700 50 3
2 3,4,6 Structural Oxidation, East of Central Fault cnratau 285 -40 0 150 150 50 3
3 1,2,3,5 Structural Oxidation, West of Central Fault cnratau 270 -90 0 150 150 50 3

 

11.14.4Sulfide Sulfur

 

Sulfide sulfur was estimated to provide an improved localized cost for concentrate processing. The cost of concentrate processing is dependent on the amount of sulfide sulfur in the mill feed. The current POX process has been adjusted to match the full range of sulfide sulfur found in the flotation concentrate. Most of the sulfide sulfur is in the form of pyrite. Pyrite exists everywhere throughout the deposit, including in the oxidized portion. In particular, the acid leach alteration type contains native sulfur which also reports to the LECO assay method for sulfide sulfur.

 

The presence of sulfide sulfur is not impacted by the oxidation state or rock type. Population tests indicate that the only independent population is the acid leach alteration. The dip orientation for the estimation parameters was, however, adjusted based on structure.

 

The sulfide sulfur LECO data was performed on selected drillholes. The sulfide sulfur block grades were estimated from the 25 ft composite LECO data as described in previous sections. Composite counts were a maximum of 10, minimum of 1 with a maximum of 3 composites per drill hole.

 

Table 11-13 summarizes the estimation parameters used to assign sulfide sulfur to the model blocks.

 

Table 11-13: Sulfide Sulfur Estimation Parameters, All Three Domains Utilized 1/D3

 

Structure Block Code Description Variable Orientation, Degrees Search Radii, ft
Dip Dir Plunge Rotation Prim Second Perpend
All Acid Leach Alteration Sulfd 0 0 0 650 650 200
3,4,6 East of Central Fault Sulfd 285 -40 0 650 650 200
1,2,3,5 West of Central Fault Sulfd 0 0 0 650 650 200

 

Due to the low number of sulfide sulfur composites, default values were assigned based on alteration type to those blocks without estimated sulfide sulfur. Sulfide sulfur can be an input to project cost so leaving blocks un-estimated would underestimate project costs.

 

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The default values were assigned as follows in Table 11-14. Default values were assigned to blocks that did not receive a sulfide sulfur value from the estimation process.

 

In the development of the POX process, reagent consumption and power costs were consistent across the range of sulfide sulfur levels identified. Therefore, a fixed value could be applied to the operating costs.

 

Table 11-14: Sulfide Sulfur Default Values if Not Estimated

 

Description Default Sulfide Sulfur %
Acid Leach 1.7167
Argillic 1.5226
Silicic 1.8335
Propylitic 1.1057
Unaltered 0.782

 

11.14.5Density

 

Bulk density was assigned to in-situ rock based on density data collected by Hycroft and their predecessors. Average density values were set based on alteration type within the hard or in-situ units. The exception was the ALS rock type which was assigned a single value not impacted by alteration.

 

Alluvium, back fill, and stockpiles were guided by the few test values available but were generally based on the density values assigned to an earlier block model completed in 2019. Table 11-15 summarizes the densities assigned to the model.

 

Table 11-15:

Density Assigned to the Block Model

 

Description Specific Gravity lbs/ft Cu Ktons per Model Block
Acid Leach 2.2654 141.424 4.5256
Argillic 2.2094 137.928 4.4137
Silicic 2.5055 156.413 5.0052
Propylitic 2.3193 144.789 4.6333
Alluvium 1.7808 111.172 3.5575
Auld Lang Syne 2.652 165.559 5.2979
Unassigned Blocks 2.3193 144.789 4.6333
Stockpile Specific Gravity lbs/ft Cu Ktons per Block
100 1.6026 100.047 3.2015
101, 102, 103, 104, 105, 106 1.7049 106.433 3.4059
120 (Crofoot Leach Pad) 2.0000 124.856 3.9954

 

11.14.6Stockpile Grade Estimation

 

The Hycroft pits have incurred both backfilling and in-pit stockpiling. Potential sulfide mill feed that has been incurred during the mining of oxide heap leach ores have been stockpiled. That material is a potential future mill feed to a sulfide processing facility.

 

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Hycroft developed interpreted solids based on survey data of the stockpiles.

 

Some of the stockpiles at Hycroft have been drilled by Sonic drilling and RC sampling methods. The grade of those stockpiles that contained stockpile drilling were assigned with the assays from those holes. Stockpiles that were estimated all used a search of 600 x 600 x 200 ft and 1/D1 methods to estimate Au, Ag, Sulfide Sulfur and cnratau. Densities were assigned as summarized in the previous sub-section. Where there were no stockpile drilling assays, average tonnage and grade of each stockpile based on the blast hole grade control information was used.

 

Blocks were assigned stockpile codes as summarized in Table 11-16.

 

Table 11-16: Stockpiles Assigned Grades by Inverse Distance Estimation

 

Stockpile Codes Location Variables Estimated by 1/D1
Au, Ag, Sulfide Sulfur, CnAu/FaAu Ratio
Dip Dir Plunge Rotation Prim Second Perpend
101 Brimstone Stockpile 1 0 90 0 600 600 200
102 Brimstone Stockpile 2 0 90 0 600 600 200
104 Central Stockpile 1 0 90 0 600 600 200
120 Crofoot Leach Pad 0 90 0 600 600 200
Stockpile Grades Assigned by Hycroft Production History
Stockpile Codes Location Au oz/ton Ag oz/ton Sulfide Sulfur % CnAu/FaAu Ratio
100 General Fill 0 0 0 0
103 Brimstone Stockpile 3 0.0148 0.6514 2.51 0.2
105 Central Stockpile 2 0.0131 0.2308 1.89 0.25
106 Gyro Stockpile 0.019 0.848 2.97 0.18
120   - - 1.74 -
                         

Note: No sulfide sulfur data exists for the Crofoot Leach Pad (120) so a default value was assigned for processing costs

 

The Crofoot leach pad (code 120) was assigned an inferred confidence classification. All other graded stockpiles were assigned an Indicated confidence classification.

 

11.14.7Treatment of 1982 – 1987 Data

 

The observed high bias with the 1982 – 1987 data was discussed and illustrated in Section 9. Half of the 1982-1987 data have been historically mined out. The 1982-1987 drill data was included using the following steps:

 

1.The procedures described in the previous sub-sections and in Section 11.15 regarding classification were first completed using the drill hole composites that had excluded the 1982 to 1987 drill data.

 

2.Once completed, the block gold grades and the block class codes were stored in separate variables.

 

3.The 1982-1987 composite data was corrected for potential high bias by multiplying each composite by a factor of 0.56, based on the nearest neighbor comparison to post 2005 data described in Section 9.

 

4.The gold estimation procedure was repeated using the identical parameters as described in the previous sub-sections and in item 1 above.

 

5.Any additional blocks that were estimated in pass 2 were added to the gold grade and coded as “inferred.”

 

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The procedure outlined above did not change the gold block grade of the blocks estimated in pass 1 without the 1982-1987 data. It was not necessary to update the silver because there were no silver assays within the 1982-1987 data.

 

11.15Classification

 

Individual blocks in the model were assigned classification codes as defined within S-K 1300. As noted earlier, the stockpiles were assigned classification codes of 2 for Indicated class and the Crofoot leach pad was assigned a code of 3 for inferred.

 

The in-situ rock values were assigned classification codes based on the inverse distance estimation of Au. During that estimation process, the number of composites that were used to estimate the block was stored along with the distance between the block and the closest composite. Those two parameters were used to assign classification code in the following manner to blocks estimated without the 1982-1987 data.

 

If closest distance <= 125 ft and number of composites = 10, Class = 1 Measured

 

Else

 

If closest distance <=225 ft and number of composites >=4, Class = 2 Indicated

 

Otherwise

 

Remaining Estimated Blocks Class = 3 Inferred

 

After the above coding was complete, the additional blocks that resulted from inclusion of the bias corrected 1982-1987 data were coded as inferred.

 

As noted in Section 11.14.4 sulfide sulfur information is limited in number compared to gold and silver assays. The confidence procedures that are described in the previous paragraph are to be applied to metallurgical processes that utilize sulfide sulfur to estimated process cost such as POX. Default assignments of sulfide sulfur to blocks with estimated gold and silver are appropriate for cost estimation.

 

The previous paragraphs discuss several items of uncertainty in the database that have caused components of the mineralization to be classified as inferred. There is indication that those inferred components are mineralized, but the uncertainty in the data or lack of data contributes to an inferred level of grade estimation.

 

Measured mineralization has a sound level of reliability due to the close spacing (125 ft) and large number of samples contributing to the grade estimates. Indicated level is slightly more uncertain than measured due to the wider spacing of the data and fewer number of samples used for estimation. The definitions of measured, indicated, and inferred are consistent with the definitions within SK-1300.

 

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Figure 11-8 is a cross-section showing the classification for Hycroft resources.

 

Figure 11-8: E-W Cross-section at 41000-N, Showing Confidence Codes

 

 

Note: Red (1) = Measured, Green (2) = Indicated, Blue (3) = Inferred. Source: Hycroft, 2025

 

11.16Model Verification

 

The block model was verified by several methods before being used to determine mineral resources:

 

Detailed Visual Checks of Drilling versus Block Estimates.

 

A Bias Check for Each Domain.

 

Swath Plots.

 

IMC Smear Check.

 

The visual check of the block model is one of the most useful and informative processes that was used to confirm the practicality of the block model. IMC completed visual checks on plan and section for all the estimated variables in the model. In addition to IMC visual checks, the Hycroft engineering and geology team on site have also reviewed the model.

 

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Figure 11-9 and Figure 11-10 are cross sections through the block model with drilling as visual checks.

 

Figure 11-9: E-W Cross-section at 41000-N, Visual Check of Gold Grades in Drillholes and Block Model

 

 

Note: Warmer Colors are Higher Grade. Source: Hycroft, 2025

 

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Figure 11-10: E-W Cross-section at 41000-N, Visual Check of Silver Grades in Drillholes and Block Model

 

 

Note: Warmer Colors are Higher Grade. Source: Hycroft, 2025

 

11.16.1Swath Plots

 

Hycroft produced comparative statistics, including inverse distance cubed (ID3), nearest neighbor (“NN”) and inverse distance squared (ID2) estimations, and swath plots for all deposits. Swath plots provide a visual indication if the block model follows the grade trends indicated by the supporting data and if there is any observable local bias in the block grade estimation The swath plots produced generally demonstrated good correlation, with block grades being somewhat smoothed relative to composite grades, as expected.

 

Figure 11-11 is an example for the swath plots in the X and Y (model east and north) directions across the deposit for the gold estimation. Figure 11-12 and Figure 11-13 illustrate the same swath plots for silver and sulfide sulfur respectively.

 

The green histogram represents the volume of estimated blocks within the resource pit for each 160 ft slice of the model.

 

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Figure 11-11: Swath Plots for Gold, X = East and Y = North Slices, 160 ft Wide Slices

 

 

 

 

Source: Hycroft, 2025

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 132

 

Figure 11-12: Swath Plots for Silver, X = East and Y = North Slices, 160 ft Slices

 

 

 

 

Source: Hycroft, 2025

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 133

 

Figure 11-13: Swath Plots for Sulfide Sulfur, X = East and Y = North Slices, 160 ft Slices

 

 

Source: Hycroft, 2025

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 134

 

11.16.2Smear Check

 

IMC used a simple test to understand the amount of grade smoothing within the block model and to confirm that the model grades are not high biased. The test is referred to internally as the “smear check.”

 

The procedure is as follows:

 

A range of cutoff grades are selected for the check process. Typically, they bracket the potential planning cutoff grades.

 

For each cutoff grade being tested, the blocks above cutoff are identified.

 

All composites contained within those blocks are identified.

 

Average grade of the composites and blocks are tabulated.

 

Percentage of the contained composites less than cutoff are calculated.

 

Table 11-17 summarizes the results for both Au and Ag in-situ rock. Stockpiles and stockpile drillholes have been removed from this analysis. In all cases, the model mean grade is less than or equal to the mean grade of the contained composites. This is because the block estimate also draws from composites that are outside of the test shape.

 

Less than cutoff, is indicative of the amount of averaging or “smearing” of grade that has occurred in the estimation process. Ideally this value should be less than about 10 to 15% in the range of cutoff grades. The gold and sulfide sulfur responses meet these criteria over a range of the deposit grades.

 

Table 11-17: IMC Smear Check

 

Cutoff Grade % Comps Less than Cutoff Number of Comps In Shape Composite Grade oz/ton Number of Blocks in Shape Model Grade oz/ton
Au Composites vs Model Au
0.002 6.24 24,464 0.009 673,328 0.008
0.003 7.31 22,073 0.010 585,073 0.009
0.004 9.10 20,000 0.010 511,894 0.009
0.005 11.54 17,758 0.011 445,637 0.010
0.006 13.39 15,577 0.012 380,290 0.011
0.007 15.08 13,349 0.013 318,446 0.012
0.008 15.84 11,331 0.014 262,200 0.013
0.009 18.36 9,446 0.015 213,726 0.014
0.010 20.04 7,830 0.016 171,559 0.015
Ag Composites vs Model Ag
0.100 15.52 16,074 0.353 500,629 0.302
0.200 21.81 8,259 0.531 221,681 0.505
0.300 25.83 4,916 0.729 122,015 0.720
0.400 27.16 3,328 0.934 80,459 0.914
0.500 28.17 2,446 1.076 57,512 1.100
0.600 29.70 1,943 1.217 43,761 1.274
Sulfide Sulfur Composites vs Model, Default Values Removed from Analysis
0.25 4.73 11,813 1.86 792,323 1.78
0.50 3.28 10,887 1.98 758,989 1.85
1.00 4.99 9,547 2.15 670,013 1.99
1.50 8.07 7,773 2.34 532,655 2.18
2.00 13.61 4,181 2.87 272,917 2.56
           

Note: Below End 2021 Topography, Without stockpile blocks or drilling, and without data from 1982 through 1987 Drilling. The silver check does not include the vein domains

 

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Silver grade responses at 0.20 oz/ton and above indicate a modeled mineralized zone will have 22 to 29% of the composite values inside the modeled shape that are less than the cutoff shape. Although not ideal, the result for silver is acceptable.

 

As an additional test on silver, the blocks within the mineral resource pit with positive economic value were averaged to determine their average silver grade. The average of all composites was identified within the same envelope. The statistical mean of the resource containing silver composites is 0.55 oz/ton after capping. The average silver grade of the resource blocks is 0.32 oz/ton. The result indicates that the observed grade smearing in silver is not overestimating the contained silver in the mineral resource.

 

11.17Mineral Resource Estimate

 

The mineral resource at the Hycroft property is currently envisioned to be produced from a conventional hard rock open pit mine feeding two alternative process facilities:

 

1.ROM cyanide heap leach, producing gold and silver doré.

 

2.Flotation milling followed by POX of the concentrate to make a gold and silver doré.

 

The terms of reference for this estimate of mineral resources are mineralization in-place. The procedures described in the following paragraphs establish that the stated mineral resources have reasonable prospects of economic extraction.

 

Mineral resources were developed using the block model and pit optimization software to determine mineralization with reasonable expectation of economic extraction as defined by S-K 1300. The optimization software compares the cost of production versus the benefit of metal sales to develop an estimated open pit geometry. The pit walls of the resulting pit are at breakeven economics where costs equal benefits.

 

The cutoff grade that is reported for this statement of mineral resources is based on the estimated costs and metal prices on Table 11-18. The internal or marginal cutoff is applied and reported where the benefits of selling the recovered metal will pay for the processing and fixed general and administrative (“G&A”) costs.

 

Table 11-18 summarizes the economic and recovery parameters that were used to define the pit that established the Mineral Resource. The process costs were developed by Ausenco and Hycroft based on recent cost estimation. Mine operating cost estimates were developed by IMC by scaling from preliminary mine planning and cost estimation completed during early 2022.

 

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The cutoff grade is presented in terms of Income Net of Refining sometimes abbreviated as NSR. A marginal or internal cutoff grade is consequently $0.01/ton. An estimate of the Net of Process value is also provided in terms of Equivalent Gold Grade. Metal prices for the Mineral Resource were $3,100 /oz Au, and $36.00/oz Ag. Spot prices for Au and Ag in 2025 ranged from US$2,798 to US$4,323/ oz Au and US$31.34 to US$71.63/ oz Ag respectively. The prices selected for determination of mineral resources are conservative relative to current metal prices and do not include extensive price extrapolation.

 

The Mineral Resource is presented on Table 11-19 using imperial units and on Table 11-20 in metric units. Mineral Resources are not mineral reserves, and detailed economic considerations have not been applied. Modifying factors for mining and processing have not been applied.

 

The risks to the Hycroft Mineral Resource are future changes in project costs and project recoveries as well as metal prices that can have a substantial impact on the Mineral Resource. Process recoveries in the grade ranges near the cutoff grades may be less than the recoveries presented on Table 11-18. Additional process testing could result in modifications to the recovery and process costs that could result in reductions in the Mineral Resource.

 

The categories of measured, indicated, and inferred reflect different drill densities as noted in Section 11.15. Uncertainties in the drill database have been minimized by the following two treatment components of the database:

 

1.The 1982 through 1987 drilling and assay data, which appears to be biased, has been corrected for bias and incorporated only in the estimation of inferred mineral resources.

 

2.The cyanide soluble silver assays which measure the cyanide amenable silver content have not been used in the MRE.

 

The slope angles input for the pit optimization software was based on work completed by Call & Nicholas Inc, (CNI) completed in February of 2022 with additional documentation in October of 2023. IMC has reviewed these documents and has accepted the slope angle recommendations for use in the development of mineral Resources.

 

The qualified organization for this Mineral Resource is IMC. IMC holds the opinion that all relevant technical and economic factors likely to influence the project or economic extraction could be resolved with further work and that this statement of Mineral Resources meets the requirements to show reasonable expectation of economic extraction.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 137

 

Table 11-18: Economic and Technical Parameters for Hycroft Mineral Resource

 

Cost Assumptions
Mining Cost, Base $1.65/ton material moved
+ Bench Incremental Cost Below 4660 $0.018/ton per bench of depth

 

Categorization of Oxidation Type based on the AuCn/AuFA Ratio = cnratau
Oxide >=0.7 Transition between 0.3 and 0.7 Sulfide <=0.3

 

Process Cost for Flotation and POX
Total Mill Cost for Sulfide and Transition $16.73/ton of feed to float plant
ROM Leach for Oxide, $1.88/ton of feed to ROM Leach
ROM Leach for Transition Sulfide $3.63/ton of feed to ROM Leach

 

Mill Process Recoveries
Mill Recoveries Flotation POX Extraction Total  
Gold 89.5% 93.5% 99.0% 82.8%  of (AuFA)
Silver 92.9% 86.0% 97.0% 77.5%  of (Total Silver Assay)

 

ROM Heap Leach Recoveries
ROM Leach Recovery Oxide Transition    
Gold   75.0% 75.0% of (AuCn)  
Silver   12.2% 12.2% of (Total Silver Assay)  
               

 

Refining Recoveries Au Ag
Mill + POX Payable 99.5% 99.5%
Leach Process Payable 99.5% 99.5%

 

Doré Transport and Refining Cost
Gold $5.00/oz
Silver $0.50/oz

 

Metal Price Assumptions Heap Leach AuCN Cutoffs Mill-POX Au Equiv
Gold Silver Internal Cutoff Internal Cutoff
$3,100/oz $36.00/oz Oxide 0.0008 oz/ton 0.0066 oz/t AuEquiv
Transition 0.0016 oz/ton

Gold Equivalent for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay

Or at average gold leach recovery AuEq = Fire Gold + 0.0035 Total Silver Assay

Gold Equivalent for Flotation + Concentration = Fire Assay Gold + Total Silver Assay x 0.0107
           

 

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Table 11-19: Hycroft Mineral Resources as of 21 January 2026, Imperial Units

 

Classification

Cutoff Grade $ Net

of Refining/ ton

Approximate

Cutoff, AuEq oz/ton

Ktons

Gold

oz/ton

Silver

oz/ton

Sulfide

Sulfur%

Contained Ounces

Gold

Oz x 1000

Silver

Oz x 1000

Heap Leach Resource
Measured $1.88 - $3.63 0.001 - 0.002 92,994 0.005 0.11 1.83 446 10,322
Indicated $1.88 - $3.63 0.001 - 0.002 110,374 0.004 0.09 1.54 475 9,492
Meas + Ind $1.88 - $3.63 0.001 - 0.002 203,368 0.005 0.10 1.67 921 19,814
Inferred $1.88 - $3.63 0.001 - 0.002 110,018 0.005 0.09 1.41 528 10,122
Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach
Measured $16.73 0.007 734,571 0.011 0.43 2.03 8,154 316,600
Indicated $16.73 0.007 748,876 0.010 0.30 1.84 7,339 226,161
Meas + Ind $16.73 0.007 1,483,447 0.010 0.37 1.93 15,493 542,761
Inferred $16.73 0.007 459,646 0.010 0.27 1.76 4,505 122,725
Combined Mineral Resources Leach Plus Mill
Measured $1.88 - $16.73 0.001 - 0.007 827,565 0.010 0.40 2.01 8,600 326,922
Indicated $1.88 - $16.73 0.001 - 0.007 859,250 0.009 0.27 1.80 7,814 235,653
Meas + Ind $1.88 - $16.73 0.001 - 0.007 1,686,815 0.010 0.33 1.90 16,414 562,575
Inferred $1.88 - $16.73 0.001 - 0.007 569,664 0.009 0.23 1.69 5,033 132,847

 

Notes:

 

1.Mineral resources based on metal prices of $3,100/troy oz Au and $36.00/troy oz Ag
2.Cutoffs are Income – Refining Cost = NSR
3.Gold Equivalent (AuEq) for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay, or at average gold leach recovery AuEq = Fire Gold + 0.0035 Total Silver Assay
4.Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay
5.Numbers may not match exactly due to rounding
6.Mineral resources are contained within a computer-generated optimized pit
7.Total material in that pit is 5.42 billion tons
8.Mineral resources are not mineral reserves, and detailed economic considerations have not been applied
9.Modifying factors for mine and process design have not been applied
10.All units are imperial. Ktons means 1,000 short tons of 2,000 lbs Au and Ag grades are in troy ounces per short ton (oz/ton)

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 139

 

Table 11-20: Hycroft Mineral Resources as of 21 January 2026, Metric Units

 

Classification

 Cutoff Grade $ Net of Refining/ tonne

Approximate

Cutoff, AuEq g/t

Ktonnes

Gold

(g/t)

Silver

(g/t)

Sulfide

(%)

Contained Ounces
Gold Silver
Oz x 1000 Oz x 1000
Heap Leach Resource
Measured $2.07 - $4.00 0.027 - 0.055 84,364 0.164 3.80 1.83 446 10,322
Indicated $2.07 - $4.00 0.027 - 0.055 100,131 0.147 2.95 1.54 475 9,492
Meas + Ind $2.07 - $4.00 0.027 - 0.055 184,495 0.155 3.34 1.67 921 19,814
Inferred $2.07 - $4.00 0.027 - 0.055 99,808 0.164 3.15 1.41 528 10,122
Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach
Measured $18.44 0.206 666,403 0.380 14.76 2.03 8,154 316,600
Indicated $18.44 0.206 679,380 0.336 10.34 1.84 7,339 226,161
Meas + Ind $18.44 0.206 1,345,783 0.358 12.53 1.93 15,493 542,761
Inferred $18.44 0.206 416,991 0.336 9.14 1.76 4,505 122,725
Combined Mineral Resources, Leach Plus Mill
Measured $2.07 - $18.44 0.027 - 0.206 750,767 0.356 13.53 2.01 8,600 326,922
Indicated $2.07 - $18.44 0.027 - 0.206 779,512 0.311 9.39 1.80 7,814 235,653
Meas + Ind $2.07 - $18.44 0.027 - 0.206 1,530,279 0.333 11.42 1.90 16,414 562,575
Inferred $2.07 - $18.44 0.027 - 0.206 516,799 0.303 7.99 1.69 5,033 132,847

 

Notes:

 

1.Mineral resources based on metal prices of $3,100/ oz Au and $36.00/ oz Ag
2.Cutoffs are Income – Refining Cost = NSR
3.Gold Equivalent for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay
4.Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay
5.Numbers may not match exactly due to rounding
6.Mineral resources are contained within a computer-generated optimized pit
7.Total material in that pit is 4.92 billion tonnes
8.All units on this table are metric: Ktonnes means 1,000 tonnes. Au and Ag grades are in grams per tonne (g/t)
9.Mineral resources are not mineral reserves, and detailed economic considerations have not been applied
10.Modifying factors for mine and process design have not been applied

 

Contained within the Mineral Resource at Hycroft are a series of high-grade silver veins at Brimstone and zones of higher silver concentrations in Vortex that are associated with a low angle breccia body. The modeling process of these high-grade silver domains was described earlier in this section. Those domains are contained within the Mineral Resources on Table 11-19 and Table 11-20. Table 11-21 to Table 11-23 are the tabulation of the gold and silver within the domain volumes that are contained within the Mineral Resources in Table 11-19 and Table 11-20.

 

The domains are in two areas of the deposit referred to as Brimstone and Vortex. The contained metal is illustrated at three different silver cutoff grades. Specific mine plans have not been completed but it is envisioned that these domains could be either mined in an open pit methodology and high-grade material could be comingled with lower-grade material from that specific pit. Or as an alternative, this material could be potentially targeted for an underground mine methodology. Additional metallurgical process development may be required to validate gold and silver recovery values in these specific areas.

 

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Table 11-21: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 2 oz/ton Cutoff Grade, Imperial Units

 

Classification Cutoff Grade Silver oz/ton Ktons

Gold

(oz/ton)

Silver

(oz/ton)

Sulfide Sulfur (%)

Gold Contained

oz x 1000

Silver Contained

oz x 1000

Brimstone
Measured 2.00 3,195 0.011 8.35 1.33 35 26,686
Indicated 2.00 330 0.010 3.11 1.87 3 1,025
Meas + Ind 2.00 3,525 0.011 7.86 1.38 38 27,711
Inferred 2.00 15 0.008 3.52 1.13 0 52
Vortex
Measured 2.00 9,126 0.018 3.81 1.49 160 34,781
Indicated 2.00 7,342 0.014 3.78 1.24 100 27,726
Meas + Ind 2.00 16,468 0.016 3.80 1.38 261 62,507
Inferred 2.00 3,644 0.014 3.65 1.27 50 13,307
Brimstone + Vortex
Measured 2.00 12,322 0.016 4.99 1.45 195 61,467
Indicated 2.00 7,671 0.013 3.75 1.26 104 28,750
Meas + Ind 2.00 19,993 0.015 4.51 1.38 299 90,218
Inferred 2.00 3,659 0.014 3.65 1.27 51 13,359

 

Table 11-22: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 3 oz/ton Cutoff Grade, Imperial Units

 

Classification Cutoff Grade Silver oz/ton Ktons

Gold

(oz/ton)

Silver

(oz/ton)

Sulfide

(%)

Gold Contained

oz x 1000

Silver Contained

oz x 1000

Brimstone
Measured 3.00 1,841 0.010 12.75 1.25 19 23,476
Indicated 3.00 109 0.008 4.55 2.14 1 494
Meas + Ind 3.00 1,949 0.010 12.30 1.30 20 23,970
Inferred 3.00 10 0.009 4.13 1.23 0 40
Vortex
Measured 3.00 4,494 0.017 5.24 1.39 74 23,568
Indicated 3.00 3,899 0.014 4.98 1.16 54 19,416
Meas + Ind 3.00 8,393 0.015 5.12 1.28 128 42,984
Inferred 3.00 2,023 0.010 4.63 1.30 21 9,374
Brimstone + Vortex
Measured 3.00 6,335 0.015 7.43 1.35 93 47,045
Indicated 3.00 4,007 0.014 4.97 1.19 55 19,909
Meas + Ind 3.00 10,342 0.014 6.47 1.29 148 66,954
Inferred 3.00 2,032 0.010 4.63 1.30 21 9,414

 

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Table 11-23: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 4 oz/ton Cutoff Grade, Imperial Units

 

Classification Cutoff Grade Silver oz/ton Ktons

Gold

(oz/ton)

Silver

(oz/ton)

Sulfide

(%)

Gold Contained

oz x 1000

Silver Contained

oz x 1000

Brimstone
Measured 4.00 1,386 0.011 15.81 1.23 15 21,912
Indicated 4.00 61 0.007 5.39 2.10 0 331
Meas + Ind 4.00 1,447 0.010 15.37 1.27 15 22,243
Inferred 4.00 10 0.009 4.13 1.23 0 40
Vortex
Measured 4.00 2,679 0.017 6.48 1.37 46 17,350
Indicated 4.00 2,452 0.015 5.88 1.13 36 14,426
Meas + Ind 4.00 5,131 0.016 6.19 1.26 82 31,776
Inferred 4.00 1,326 0.010 5.26 1.26 13 6,969
Brimstone + Vortex
Measured 4.00 4,065 0.015 9.66 1.33 60 39,262
Indicated 4.00 2,513 0.015 5.87 1.15 37 14,757
Meas + Ind 4.00 6,578 0.015 8.21 1.26 97 54,019
Inferred 4.00 1,335 0.010 5.25 1.26 13 7,009

 

Table 11-24: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 68.57 g/t (2 oz/ton) Cutoff Grade, Metric Units

 

Classification Cutoff Grade Silver g/t Ktonnes

Gold

(g/t)

Silver

(g/t)

Sulfide

(%)

Contained Ounces

Gold

Oz x 1000

Silver

Oz x 1000

Brimstone
Measured 68.57 2,899 0.372 286.35 1.33 35 26,686
Indicated 68.57 299 0.332 106.62 1.87 3 1,025
Meas + Ind 68.57 3,198 0.368 269.54 1.38 38 27,711
Inferred 68.57 13 0.289 120.74 1.13 0 52
Vortex
Measured 68.57 8,279 0.603 130.67 1.49 160 34,781
Indicated 68.57 6,660 0.469 129.48 1.24 100 27,726
Meas + Ind 68.57 14,940 0.543 130.14 1.38 261 62,507
Inferred 68.57 3,306 0.475 125.20 1.27 50 13,307
Brimstone + Vortex
Measured 68.57 11,178 0.543 171.04 1.45 195 61,467
Indicated 68.57 6,959 0.463 128.49 1.26 104 28,750
Meas + Ind 68.57 18,137 0.512 154.71 1.38 299 90,218
Inferred 68.57 3,319 0.474 125.18 1.27 51 13,359

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 142

 

Table 11-25: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 102.86 g/t (3 oz/ton) Cutoff Grade, Metric Units

 

Classification Cutoff Grade Silver (g/t) Ktonnes

Gold

(g/t)

Silver

(g/t)

Sulfide (%)

Contained Ounces

Gold

Oz x 1000

Silver

Oz x 1000

Brimstone
Measured 102.86 1,670 0.353 437.24 1.25 19 23,476
Indicated 102.86 98 0.281 155.98 2.14 1 494
Meas + Ind 102.86 1,768 0.349 421.58 1.30 20 23,970
Inferred 102.86 9 0.297 141.73 1.23 0 40
Vortex
Measured 102.86 4,077 0.566 179.80 1.39 74 23,568
Indicated 102.86 3,537 0.477 170.74 1.16 54 19,416
Meas + Ind 102.86 7,614 0.525 175.59 1.28 128 42,984
Inferred 102.86 1,835 0.349 158.91 1.30 21 9,374
Brimstone + Vortex
Measured 102.86 5,747 0.504 254.61 1.35 93 47,045
Indicated 102.86 3,635 0.472 170.34 1.19 55 19,909
Meas + Ind 102.86 9,382 0.492 221.96 1.29 148 66,954
Inferred 102.86 1,844 0.348 158.82 1.30 21 9,414

 

Table 11-26: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 137.14 g/t (4 oz/ton) Cutoff Grade, Metric Units

 

Classification Cutoff Grade Silver (g/t) Ktonnes

Gold

(g/t)

Silver

(g/t)

Sulfide

(%)

Contained Ounces

Gold

Oz x 1000

Silver

Oz x 1000

Brimstone
Measured 137.14 1,257 0.361 542.02 1.23 15 21,912
Indicated 137.14 56 0.244 184.93 2.10 0 331
Meas + Ind 137.14 1,313 0.357 526.88 1.27 15 22,243
Inferred 137.14 9 0.297 141.73 1.23 0 40
Vortex
Measured 137.14 2,430 0.587 222.07 1.37 46 17,350
Indicated 137.14 2,225 0.504 201.70 1.13 36 14,426
Meas + Ind 137.14 4,655 0.548 212.34 1.26 82 31,776
Inferred 137.14 1,203 0.338 180.23 1.26 13 6,969
Brimstone + Vortex
Measured 137.14 3,687 0.510 331.17 1.33 60 39,262
Indicated 137.14 2,280 0.498 201.29 1.15 37 14,757
Meas + Ind 137.14 5,968 0.505 281.55 1.26 97 54,019
Inferred 137.14 1,211 0.338 179.95 1.26 13 7,009

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 143

 

12Mineral Reserve Estimates

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 144

 

13Mining Methods

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 145

 

14Recovery Methods

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 146

 

15Infrastructure

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 147

 

16Market Studies and Contracts

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 148

 

17Environmental Studies, Permitting, and Plan, Negotiations, or Agreements with Local Individuals or Groups

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 149

 

18Capital and Operating Costs

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 150

 

19Economic Analysis

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 151

 

20Adjacent Properties

 

The Rosebud mine is located about 4.7 miles south-east of the Mine (Figure 20-1). Rosebud was operated as an underground stope mine between 1997 and 2000 by a joint venture between Hecla and Newmont. Much of the following information is available online at mindat.org.

 

Figure 20-1: Location of Rosebud Property

 

  

 

Source: Hycroft, 2023

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 152

 

The deposit is part of a large, low-sulfidation hydrothermal system extending throughout most of the Kamma Mountains. Specifically, the deposit is a low-temperature epithermal, quartz-sericite, gold and silver deposit within Miocene andesitic and rhyolitic volcanics and volcaniclastics. The volcanics unconformably overlie a Jurassic/Triassic metasediment basement, which also hosts precious metal mineralization.

 

Main structural elements include the east-west trending South Ridge Fault and the northeast trending Rosebud Shear, which displays up to 2,000 ft of left-lateral displacement and about 400 ft of normal displacement. The South Ridge Fault is a mineralized listric normal fault which acted as a conduit for mineralizing fluids.

 

The mining method was overhand cut and fill with access via a decline. Equipment was rubber-tired, including drill jumbos, rock bolters, 3.5-yard loaders, and 20-ton haul trucks. Typical ore panels were 14 ft high, 18 ft wide and about 80 ft long. These were backfilled with cemented materials batched at the surface and hauled underground.

 

Ore was direct shipped to the Carlin district for processing.

 

The QP has been unable to verify the information in this section, and the information is not necessarily indicative of the mineralization on the property that is the subject of the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 153

 

21Other Relevant Data and Information

 

This section is not relevant to the technical report summary.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 154

 

22Interpretation and Conclusions

 

22.1Introduction

 

The QPs note the following interpretations and conclusions in their respective areas of expertise, based on the review of data available for this Report.

 

The purpose of this initial assessment is to disclose the latest update of the MRE as it is Hycroft’s intent to further develop their sulfide mineral resource.

 

22.2Mineral Tenure, Surface Rights, Water Rights, Royalties, and Agreements

 

Hycroft controls all surface and mineral rights within the Hycroft mineral resource area. No further land acquisition is required for the operation of the mine and contemplated processing facilities.

 

22.3Geology and Mineralization

 

The Hycroft deposit is a low-sulfidation, epithermal, hot springs system that contains gold and silver mineralization. Radiometric dating of adularia (potassium feldspar) indicates that the main phase of gold and silver mineralization formed approximately four million years ago (Ebert and Rye, 1997) when hydrothermal fluids were fed upward along high angle, normal faults. Low-grade gold and silver mineralization was co-deposited with silica and potassium feldspar throughout porous rock types.

 

22.4Exploration

 

The exploration drilling, sample preparation, analysis and security are typical for the US mining industry and is acceptable for application to mineral resource determination.

 

Within the block model, there are 5,813 drillholes with 516,901 drill intervals amounting to 2,668,616 ft of drilling. The work outlined is a summary of over a year’s worth of data verification and checking by Hycroft and IMC personnel. As a result, the Hycroft and IMC teams have gained significant confidence in this data set. IMC holds the opinion that the database as utilized in this statement of mineral resources inclusive the edits and corrections outlined is appropriate for the estimation of mineral resources.

 

The QP considers that exploration drilling, sampling, sample preparation, analytical methods and security are acceptable, are in line with industry-standard practices, and are adequate for Mineral Resource determination.

 

22.5Metallurgical Testwork

 

The mineralized material at Hycroft is considered very abrasive.

 

The mineralized material at Hycroft is considered hard with respect to grinding.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 155

 

Silver recovery decreases at low pH ranges (<5.0) during oxidation, indicating the need for a lime boil step following POX.

 

Oxygen consumption in POX circuit is primarily a function of the sulfide sulfur content of the concentrate. To achieve approximately 95% sulfide oxidation, about 0.19 ton of oxygen per ton of concentrate is required.

 

Metallurgical testwork completed between 2021 and 2025 confirms that Hycroft sulfide mineralization is amenable to a flotation and POX processing route. Optimized flotation conditions significantly improved gold recoveries, and subsequent POX testing demonstrated that POX followed by hot cure, lime boil, and cyanide leaching is a technically viable and repeatable flowsheet for treating pyrite concentrate.

 

22.6Mineral Resource Estimates

 

Mineral resources were developed based on a conventional computer-based block model of the deposit and the application of open pit optimization software to determine the mineralization with reasonable expectation of economic extraction.

 

Each block was evaluated to determine which process provides the best net return after operating cost. The following two processes were identified:

 

ROM cyanide heap leaching of oxide and some transition materials.

 

Milling, Flotation, POX, Hot Cure, and Lime Boil followed by Cyanide Leach and Merrill-Crowe of sulfide and some transition materials.

 

Mineral Resources were based on metal prices of $3,100/oz Au and $36.00/oz Ag. Mineral resources were contained within a computer-generated pit.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 156

 

Table 22-1: Hycroft Mineral Resources as of 21 January 2026, Imperial Units

 

Classification

Cutoff Grade $ Net

of Refining/ ton

Approximate

Cutoff, AuEq oz/ton

Ktons

Gold

oz/ton

Silver

oz/ton

Sulfide

%

Contained Ounces

Gold

oz x 1000

Silver

oz x 1000

Heap Leach Resource
Measured $1.88 - $3.63 0.001 - 0.002 92,994 0.005 0.11 1.83 446 10,322
Indicated $1.88 - $3.63 0.001 - 0.002 110,374 0.004 0.09 1.54 475 9,492
Meas + Ind $1.88 - $3.63 0.001 - 0.002 203,368 0.005 0.10 1.67 921 19,814
Inferred $1.88 - $3.63 0.001 - 0.002 110,018 0.005 0.09 1.41 528 10,122
Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach
Measured $16.73 0.007 734,571 0.011 0.43 2.03 8,154 316,600
Indicated $16.73 0.007 748,876 0.010 0.30 1.84 7,339 226,161
Meas + Ind $16.73 0.007 1,483,447 0.010 0.37 1.93 15,493 542,761
Inferred $16.73 0.007 459,646 0.010 0.27 1.76 4,505 122,725
Combined Mineral Resources Leach Plus Mill
Measured $1.88 - $16.73 0.001 - 0.007 827,565 0.010 0.40 2.01 8,600 326,922
Indicated $1.88 - $16.73 0.001 - 0.007 859,250 0.009 0.27 1.80 7,814 235,653
Meas + Ind $1.88 - $16.73 0.001 - 0.007 1,686,815 0.010 0.33 1.90 16,414 562,575
Inferred $1.88 - $16.73 0.001 - 0.007 569,664 0.009 0.23 1.69 5,033 132,847

 

Notes:

 

1.Mineral resources based on metal prices of $3,100/ oz Au and $36.00/ oz Ag
2.Cutoffs are income – refining cost = NSR
3.Gold Equivalent (AuEq) for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay, or at average gold leach recovery AuEq = Fire Gold + 0.0035 Total Silver Assay
4.Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay
5.Numbers may not match exactly due to rounding
6.Mineral resources are contained within a computer-generated optimized pit
7.Total material in the pit is 5.42 billion tons
8.Mineral resources are not mineral reserves, and detailed economic considerations have not been applied
9.Modifying factors for mine and process design have not been applied
10.All units are imperial. Ktons means 1,000 short tons of 2,000 lbs. Au and Ag grades are in troy ounces per short ton (oz/ton)

 

Contained within the Mineral Resource at Hycroft are a series of high-grade silver veins at Brimstone and zones of higher silver concentrations in Vortex that are associated with a low angle breccia body. Table 22-2 is the tabulation of gold and silver within the domain volumes that are contained within the Mineral Resources at 2 oz/ton cutoff grade in imperial units.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 157

 

Table 22-2: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 2 oz/ton Cutoff Grade, Imperial Units

 

Classification Cutoff Grade Silver oz/ton Ktons

Gold

 

oz/ton

Silver
oz/ton
Sulfide Sulfur% Gold Contained
oz x 1000
Silver Contained
oz x 1000
Brimstone
Measured 2.00 3,195 0.011 8.35 1.33 35 26,686
Indicated 2.00 330 0.010 3.11 1.87 3 1,025
Meas + Ind 2.00 3,525 0.011 7.86 1.38 38 27,711
Inferred 2.00 15 0.008 3.52 1.13 0 52
Vortex
Measured 2.00 9,126 0.018 3.81 1.49 160 34,781
Indicated 2.00 7,342 0.014 3.78 1.24 100 27,726
Meas + Ind 2.00 16,468 0.016 3.80 1.38 261 62,507
Inferred 2.00 3,644 0.014 3.65 1.27 50 13,307
Brimstone + Vortex
Measured 2.00 12,322 0.016 4.99 1.45 195 61,467
Indicated 2.00 7,671 0.013 3.75 1.26 104 28,750
Meas + Ind 2.00 19,993 0.015 4.51 1.38 299 90,218
Inferred 2.00 3,659 0.014 3.65 1.27 51 13,359

 

22.7Risks and Opportunities

 

22.7.1Risks

 

22.7.1.1Exploration

 

There are structural complexities with yet underdetermined kinematics controlling the high-grade silver veins requiring additional drilling for further definition.

 

22.7.1.2Sample Preparation, Analysis and Security

 

In the future, IMC recommends that complete QA/QC procedures be applied to silver and sulfide sulfur assaying and sampling. Regular sampling for QA/QC should be applied to those values in the same way as they have been recently applied to gold.

 

22.7.1.3Metallurgical Testing

 

The process method for processing sulfide mineralized materials by using flotation followed by a pressure oxidative treatment of the concentrates showed that the process method worked well and has improved from previous test work.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 158

 

The previous testwork program did not include provisions for mercury capture in the POX off-gas scrubbing and venting system. If mercury capture is required for environmental compliance, additional equipment would be required, including condensing capacity and upstream air drying and gas cleaning systems.

 

Head grade analyses of rougher flotation concentrates conducted by SGS (Project 13224-001/003, Final Report dated April 11, 2013) reported mercury concentrations ranging from 9.1 ppm to 34.1 ppm. However, no testwork has been performed to quantify the extent of mercury volatilization during POX. Additional testwork is required to confirm mercury concentrations in autoclave off-gas and to determine whether mercury capture is required.

 

Operating recoveries for gold and silver assumed for this report has some risks that could impact economics, and these need to be managed and mitigated by additional studies.

 

Process reagent unit costs can change quite quickly depending on various market factors which may result in fluctuations in operating cost estimates.

 

Operating costs are also subject to market pricing changes due to increases in energy costs that are being driven by the continued inflationary environment in many industries, particularly commodity materials.

 

Hycroft has operated run-of-mine heap leach facility to produce gold and silver. The cumulative performance statistics and metallurgical test data gathered are extensive and strongly support the current heap leach recovery assumptions for oxide mineralized materials.

 

22.7.1.4Mineral Resource Estimate

 

The risks to the Mineral Resource are project costs and project recoveries as well as metal prices that can have a substantial impact both positive and negative.

 

Cutoff grades for both heap leach and concentrator processing are low due to the current high level of metal prices.

 

Any reduction of process recovery near the heap leach or concentrator cutoff grades could result in a loss of mineral resource.

 

22.7.2Opportunities

 

22.7.2.1Exploration

 

Hycroft holds a large land package with good growth potential.

 

Multiple episodes of mineralization within a well-developed structural framework may result in discovery of additional mineral trends that are open along strike and at depth.

 

Expanding the use of IP geophysics in the mineralization zone may identify multiple untested targets in the existing data set. This emerging technology has a proven record of success in similar applications.

 

22.7.2.2Metallurgical Testing

 

Additional metallurgical testwork provides opportunities to further optimize the POX circuit design and potentially reduce capital and operating costs. Key testwork opportunities include evaluating POX kinetics to confirm minimum autoclave retention time, assessing the impact of flotation grind size and mass pull on concentrate quality and POX performance, and optimizing oxygen partial pressure and utilization. Additional work is also recommended to confirm autothermal operation, characterize solids–liquid separation performance for flotation concentrate and POX discharge, and better define POX discharge chemistry to optimize neutralization and downstream processing. Targeted off-gas and condensate characterization may also be required to support environmental compliance requirements.

 

Alternatives for processing flotation concentrates are under process development, including but not limited to, roasting and sulfide sulfur recovery for sulfuric acid production. This has the potential to reduce operating costs, raise gold and silver recoveries and create an additional revenue stream.

 

22.7.2.3Mineral Resource Estimate

 

Alternatives are under evaluation for treatment of flotation concentrates. Improvements and confirmation of those alternatives could provide significant financial benefit and increase the volume and value of the mineral resource.

 

Minimal geotechnical information has been gathered resulting in very conservative slope parameters applied. Adding geotechnical data from the drilling and logging program may improve the alteration model which could lead to more beneficial slope parameters, thus reducing stripping ratios.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 159

 

23Recommendations

 

23.1Exploration

 

Update the technical report summary with a preliminary economic evaluation of the project as currently envisioned.
Increase the drill hole density in the Bay area.
Continue to develop drill plans in the exploration target areas to the east (Manganese and Wildrose) and south (Oscar), to further expand the resource.
Continue deep exploration on Brimstone and Vortex high-grade mineralization.
Drill the Bay and Camel targets to fully define leachable opportunities.
Continue developing regional exploration targets.
Continue exploring the total land package that Hycroft holds, including more geological mapping, soil and chip samples, geophysical information and drilling.
Drill out the current leach pads and stockpiles to better define potential economic benefit to future processing activities.

 

23.2Sample Preparation, Analysis and Security

 

Always complete QA/QC analysis on all potentially economic minerals including gold, silver, and sulfide sulfur. Avoid selective application of quality controls during the drilling, sampling, and assay process.

 

23.3Metallurgical Testing

 

It is recommended that Hycroft continue to evaluate known oxide / transition zones for further heap leach feed material. Also, Hycroft should investigate the potential to re-leach material from historic heap leach pads for an additional revenue source.

 

It is also recommended that Hycroft undertake additional metallurgical testwork covering flotation, POX, leaching, solids–liquid separation, cyanide destruction, and Merrill-Crowe processes. The results of this testwork should allow Hycroft to:

 

optimize the flotation reagent suite to reduce operating costs
optimize the autoclave retention time required for variations in flotation concentrate product size
evaluate the potential to reduce autoclave oxygen partial pressure to the range of 15–30 psi
generate additional recovery data as a function of retention time and extent of sulfide oxidation
investigate each of the POX, Hot Cure, and Lime Boil stages in sufficient detail to reduce capital costs by reducing lime and limestone consumption, eliminating unnecessary process steps or shortening retention times, thereby reducing equipment sizing and cost
investigate POX discharge solution chemistry and limestone/lime consumptions to reduce operating costs

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 160

 

determine whether flotation mass pull can be reduced. The sulfide grade of the concentrate may be marginal with respect to providing sufficient exothermic energy to sustain autoclave reactions. This information is required to determine whether preheating is necessary ahead of POX
obtain solids–liquid separation performance data and flocculant requirements for all thickeners, including tailings, concentrate, POX CCDs, and leach residue CCDs. Higher underflow density from the concentrate thickener would be beneficial to the autoclave heat balance
optimize cyanide addition and quantify cyanide consumption in the leach circuit, including levels of free and WAD cyanide post-leach
optimize reagent consumption in the cyanide destruction circuit by developing an accurate and reliable SO₂/CN ratio
determine whether post-leach solution chemistry impacts Merrill-Crowe recovery efficiency.

 

23.4Mineral Resource Estimate

 

Continue evaluation and testing of alternative processing methods of flotation concentrates.

 

Always complete QA/QC analysis on all potentially economic minerals including gold, silver, and sulfide sulfur.

 

Gather more geotechnical information from previous core samples and with the addition of new geotechnical core holes to improve slope stability parameters.

 

23.5Estimated Program Costs

 

Table 23-1 provides estimated program costs.

 

Table 23-1: Estimated Program Costs

 

Program Cost Estimated Cost (US$)
Updated Technical Report with Economics 200,000
Exploration Drilling East and South 1,600,000
Exploration Drilling Deep in Brimstone/Vortex 14,500,000
Regional Exploration Targets 500,000
Exploration for Leachable Opportunities (Bay & Camel) 1,800,000
Exploration - Leach Pads and Stockpiles 800,000
Sample Preparation - Procedural Upgrade 50,000
Metallurgical Testing - Historic Leach Pads 250,000
Metallurgical Testing - High-Grade Process Development 550,000
Metallurgical Testing - POX Process Development/Optimization 1,100,000
Mineral Resource - Alternative Processing Method Development 800,000
Mineral Resource and Mine Planning – Additional Geotechnical Testing 300,000

 

Note: All costs are subject to change based on project results

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 161

 

24References

 

Ausenco Engineering USA South Inc, 2023. “Technical Report Summary of Initial Assessment on the Hycroft Mine, Nevada, United States of America.”

 

Ausenco Engineering USA South Inc, 2022. “Technical Report Summary of Initial Assessment on the Hycroft Mine, Nevada, United States of America.”

 

Bailey, E.H, and Phoenix, D.A. (1944). QuickAg Deposits in Nevada, University of Nevada Bulletin, v.38, no.5.

 

Bates, W.R. (2001). A proposed Exploration Program for the Hycroft Mine. Unpublished Vista Au report.

 

Bureau of Land Management (BLM). (2019). Hycroft Mine Phase II Expansion Project Draft Environmental Impact Statement DOI-BLM-NV-W030-2015-007. Prepared by U.S. Bureau of Land Management Winnemucca District Office Black Rock Field Office in Coordination with U.S. Fish and Wildlife Service Pacific Southwest Region Division of Migratory Bird Management. May 2019.

 

California’s Office of Statewide Health Planning and Development (OSHPD), OSHPD Seismic Design Maps Website for Hycroft Mine, Reference: ASCE 7-16, Site Class: D, Risk Category: Visited 20 Aug 2021. I Available at: https://seismicmaps.org/.

 

Clark. I.C. (1918). Recently Recognized Alunite Deposits at Sulphur, Humboldt County, Nevada, Engineering and Mining Journal, v.106, no.4.

 

Couch, B.F and Carpenter, J. A. (1943). Nevada’s metal and mineral production (1859-1940 inclusive), Univ. Nevada Bulletin, v.37, no.4 Geology and Mining Services no.38.

 

Ebert, S.W., & Rye, R.O. (1997). Secondary precious metal enrichment by steam-heated fluids in the Crofoot-Lewis hot spring gold -silver deposit. Economic Geology, v.92, 578-600p.

 

Friberg, R.S. (1980). Detailed Evaluation Report of the Sulphur Au Ag prospect, Humboldt and Pershing Counties, Nevada. Unpublished Homestake Mining Company Report, 32p.

 

Fulton and Smith. (1932). Nevada Bureau of Mines and Geology File Manuscript.

 

GISTM. (2020). Global Industry Standards on Tailings Management. Co-convened by the International Council on Mining and Metals (ICMM), United Nations Environment Programme (UNEP) and Principles for Responsible Investment (PRI). August 2020.

 

Hazen Research Inc. (2011). POX-CIL Evaluation of Hycroft Flotation Concentrates, Hazen Project 11232 Report and Appendices A-F.

 

Hazen Research Inc. (2011). Evaluation of Hycroft Blend Flotation Concentrate, Hazen Project 11243-01 Report and Appendix.

 

Hazen Research Inc. (2011). Evaluation of Kappes, Cassiday & Associates Flotation Concentrate, Hazen Project 11307 Report and Appendix.

 

Hazen Research Inc. (2014). Atmospheric Alkaline Oxidation Pre-treatment Pilot Plant of Hycroft Flotation Concentrates, Hazen Project 11859.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 162

 

Hazen Research Inc. (2014). Phase 2 Atmospheric Alkaline Oxidation of Hycroft Flotation Concentrate, Hazen Project 11821.

 

Humboldt County Building Department 2018 Code Amendments. Visited 20 August 2021. Available at: https://www.humboldtcountynv.gov/DocumentCenter/View/3415/2018-Code-Admendments-Approved.

 

Hycroft Mining Management. (2021). Hycroft Building a World-Class Operation. PowerPoint presentation from April 20, 2021. http://www.hycroftmining.com/wp-content/uploads/2021-Presentation-4-19-21.pdf.

 

Hycroft Resources and Development, Inc. (HRDI). (2017). Fact Sheet Pursuant to Hycroft Mine Project, Permit Number: NEV0094114. Renewal 2017, Fact Sheet Revision 01. https://ndep.nv.gov/uploads/documents/NEV0094114dfsFY20.pdf.

 

Hycroft Resources and Development, Inc. (HRDI). (2018). Hycroft Mine Amendment to Plan of Operations (NVN-064641) Phase II Expansion Project. Prepared for the United States Department of the Interior, Bureau of Land Management, Black Rock Field Office, Winnemucca, Nevada. April 2014. Revised June 2014, Revised January 2017, Revised March 2017, and Revised June 2018.

 

Hynes-Griffin, M.E., and Franklin, A. G. (1984). “Rationalizing the seismic coefficient method.” Miscellaneous Paper GL-84-13, Geotechnical Laboratory, U. S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi.

 

Ibrado, A.S., Roth, D.K., Snider, J.W., Brown, R.A., Harris, D.A., Pennstrom, W.J., Peterson, A.T. (2014). NI 43-101 Technical Report Mill Expansion Feasibility Study Technical Report, Winnemucca, Nevada, USA. Prepared by M3 for Allied Nevada Gold Corp., Effective date: November 03, 2014.

 

Jones, J.C. (1921). Report on the Property of the Ag Camel Mining and Development Company, Sulphur, Nevada. Unpublished Ag Camel Mining and Development Company Report, 6p.

 

Kappes, Cassidy & Associates, (2013). Hycroft Pressure Oxidation and Leach Test Work, Project No. 189 C/Report I.D. KCA0120225_HY18_02 / Mainfile No. 7665.

 

M3 Engineering & Technology, Newman, S., DeLong, R.F., Clarkson, B. M., Carew, T., Hartmann, M. (2019). Technical Report Summary: Heap Leaching Feasibility Study. Prepared by M3 for Hycroft, Effective date: July 31, 2019.

 

McLean, D.A., (1991). Geology of the Crofoot Mine; unpublished Hycroft Resources and Development Inc. Report, 11p.

 

MMW (2012). Review of Seismogenic Potential of the Kamma (East) Fault and Design Ground Motions, Proposed Heap Leach Facilities, Hycroft Mine, Humboldt County, Nevada. Report prepared by Michael W. West & Associates, Inc. for Knight Piesold & Company. December 18, 2012.

 

Newman, S., DeLong, R.F., Clarkson, B. M., Carew, T., Hartmann, M., Technical Report Summary: Heap Leaching Feasibility Study. Prepared by M3 Metals Corp for Hycroft Mining Corporation, Effective date: July 31, 2019

 

Pershing County Building Commercial Building Guide, Minimum Standards for Building Plans, New Commercial Project Permit Application Checklist: For commercial structures, such as Groups: A, B, E, F, H, I, M, R, and S occupancies. Visited 16 Aug 2021. Available at: https:// www.pershingcountynv.gov/document_center /Department/Building%20Department/CommercialGuidelines-002.pdf.

 

Prenn, Neil, (2006). Technical Report – Vista Au Corp., Hycroft Mine, Winnemucca, Nevada, USA, 43-101 Technical Report prepared by Mine Development Associates, 142p.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 163

 

SGS Minerals Services. (2009). The Recovery of Au and Ag from Hycroft Project Sulphide Samples, Allied Nevada Au Corporation – Hycroft Project – 12012-001 (Report 3).

 

SGS Minerals Services. (2013). An Investigation into Oxidative Pretreatment of Hycroft Flotation Concentrates, SGS Project 13224-001/003 – Final Report.

 

Shawn Gooch, P.E., (2020). Hycroft Resources and Development, Inc. (HDRI) Hycroft Mine Project NEV0094114 (Renewal 2017, Fact Sheet Revision 01).

 

SRK Consulting Inc (SRK). (2022). Preliminary Estimate of Dewatering Requirements to Support 2021 Pre-Feasibility Study Technical Memorandum.

 

USGS (2014). United States Geologic Survey - Unified Hazard Tool. Website tool. https://earthquake.usgs.gov/hazards/interactive/index.php.

 

Vandenburg, W.O. (1938). Reconnaissance of Mining Districts in Humboldt County, Nevada; U.S. Bureau of Mines Circular 6995, 47p.

 

Wallace, A.B. (1980). Geology of the Sulphur District, Southwestern Humboldt County, Nevada, unpublished report for the Soc. Econ. Geol. Field Trip, 1984.

 

Ware, G.H. (1989). Surface Mapping, Sampling and Selected Cross-Sections, unpublished report for Hycroft Resources & Development.

 

Wilden R. (1964). Geology of Mineral Deposits of Humboldt County, Nevada, Nevada Bureau of Mines Bulletin 59, 154p.

 

Wilson, S. E. (2008). Technical Report - Allied Nevada Gold Corp., Hycroft Mine, Winnemucca, Nevada, USA.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 164

 

25Reliance on Other Experts

 

Table 25-1 provides a detailed list of information provided by Hycroft (Registrant) for matters discussed in this Technical Report Summary.

 

Table 25-1: Information Provided by Hycroft

 

Category TRS Section Reliance
Legal Matters Section 3 Property Description and Location Information and documentation regarding mineral titles, surface land agreements, current permitting status, royalties and other agreements provided by Hycroft.

 

The QPs consider it reasonable to rely upon Hycroft for this information because Hycroft, along with its legal and other advisors, are best positioned to access and interpret existing information and documentation concerning these legal matters and interpretation of the same is outside of the expertise of the QPs.

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentPage | 165

 

Appendix A Hycroft Patented Claims

 

Claim Name Patent No. Mineral Survey No.
Admission Placer 908431 4355
Black Rock (portion) 1064817 4688A
Black Rock (portion) 1064817 4688A
Brime Stone Placer - aka Brimstone Placer 1001727 4600
Cold Sulphur Placer 83151 3225
Green Rock Placer (portion) - aka Green Rock No. 1 1223182

4839

4857

Green Rock Placer (portion) - aka Green Rock No. 2 1223182

4839

4857

Green Rock Placer (portion) - aka Green Rock No. 3 1223182

4839

4857

Green Rock Placer (portion) - aka Green Rock No. 4 1223182

4839

4857

Hilltop Placer (portion) 1008652 4598
Hilltop Placer (portion) 1008652 4598
Hilltop Placer (portion) 1008652 4598
Occult Placer (portion) 1008652 4598
Occult Placer (portion) 1008652 4598
Occult Placer (portion) 1008652 4598
Scheol No. 9 Placer 1008652 4598
Sheol No. 4 Placer (portion) 908431 4355
Sheol No. 5 Placer (portion) 908431 4355
Sheol No. 6 Placer 908431 4355
Sheol No. 7 Placer 908431 4355
Sheol No. 8 Placer 908431 4355
Sheol Nos. 4 & 5 Placer (portions) 908431 4355
Sheol Sulphur Mine No. 1 Placer 908431 4355
Sheol Sulphur Mine No. 2 Placer 908431 4355
Sheol Sulphur Mine No. 3 Placer 908431 4355
Swager Placer 1213605 4839
West Virginia No. 1 1064817 4688A
West Virginia No. 2 1064817 4688A

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | A

 

Appendix B Hycroft Unpatented Claims

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
Airstrip #1 4/09/1958 Crofoot Henry NMC88292 Humboldt
Airstrip #2 4/09/1958 Crofoot Henry NMC88293 Humboldt
Airstrip #3 4/09/1958 Crofoot Henry NMC88294 Humboldt
Airstrip #4 4/02/1958 Crofoot Henry NMC88295 Humboldt
Airstrip #5 4/02/1958 Crofoot Henry NMC88296 Humboldt
Airstrip Fraction 7/27/1967 Crofoot Henry NMC88297 Humboldt
Albert Lode 1 1/27/2026 Hycroft Resources & Development, LLC In Process - Application Submitted Humboldt
Albert Lode 2 1/27/2026 Hycroft Resources & Development, LLC In Process - Application Submitted Humboldt
Albert 3/11/1989 Kolb Theodore A NMC546000 Humboldt
Alunite 11/04/1980 Lewis Frank W NMC181012 Humboldt
Alunite #2 11/04/1980 Lewis Frank W NMC181013 Humboldt
Anita 3/11/1989 Kolb Theodore A NMC545998 Humboldt
Ashlode 3/11/1989 Kolb Theodore A NMC545999 Humboldt
Blackrock #2 3/11/1989 Kolb Theodore A NMC545996 Humboldt
CKC #1 3/03/1973 Crofoot Daniel M NMC88348 Humboldt
CKC #10 3/11/1989 Crofoot Daniel M NMC546001 Humboldt
CKC #11 3/11/1989 Crofoot Daniel M NMC546002 Humboldt
CKC #13 3/11/1989 Crofoot Daniel M NMC546003 Humboldt
CKC #14 3/11/1989 Crofoot Daniel M NMC546004 Humboldt
CKC #15 8/14/1987 Crofoot Daniel M NMC444112 Humboldt
CKC #2 3/03/1973 Crofoot Daniel M NMC88349 Humboldt
CKC #3 4/03/1973 Crofoot Daniel M NMC88350 Humboldt
CKC #4 4/03/1973 Crofoot Daniel M NMC88351 Humboldt
CKC #5 4/03/1973 Crofoot Daniel M NMC88352 Humboldt
CKC #6 4/03/1973 Crofoot Daniel M NMC88353 Humboldt
CKC #7 9/06/1973 Crofoot Daniel M NMC88354 Humboldt
DIA #1 8/25/1983 Lewis Frank W NMC284248 Humboldt
DIA #2 8/25/1983 Lewis Frank W NMC284249 Humboldt
DIA #3 8/25/1983 Lewis Frank W NMC284250 Humboldt
DIA #4 8/25/1983 Lewis Frank W NMC284251 Humboldt
DIA #5 8/25/1983 Lewis Frank W NMC284252 Humboldt
FG 223 9/05/2006 Hycroft Res & Dev Inc NMC939256 Humboldt
FG 224 9/05/2006 Hycroft Res & Dev Inc NMC939257 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | B

 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 225 9/05/2006 Hycroft Res & Dev Inc NMC939258 Humboldt
FG 270 9/01/2006 Hycroft Res & Dev Inc NMC939291 Humboldt
FG 271 9/01/2006 Hycroft Res & Dev Inc NMC939292 Humboldt
FG 272 9/01/2006 Hycroft Res & Dev Inc NMC939293 Humboldt
FG 273 9/01/2006 Hycroft Res & Dev Inc NMC939294 Humboldt
FG 274 9/01/2006 Hycroft Res & Dev Inc NMC939295 Humboldt
FG 319 9/01/2006 Hycroft Res & Dev Inc NMC939332 Humboldt
FG 320 9/01/2006 Hycroft Res & Dev Inc NMC939333 Humboldt
FG 321 9/01/2006 Hycroft Res & Dev Inc NMC939334 Humboldt
FG 322 9/01/2006 Hycroft Res & Dev Inc NMC939335 Humboldt
FG 323 9/01/2006 Hycroft Res & Dev Inc NMC939336 Humboldt
FG 368 9/01/2006 Hycroft Res & Dev Inc NMC939373 Humboldt
FG 369 9/01/2006 Hycroft Res & Dev Inc NMC939374 Humboldt
FG 370 9/01/2006 Hycroft Res & Dev Inc NMC939375 Humboldt
FG 371 9/01/2006 Hycroft Res & Dev Inc NMC939376 Humboldt
FG 372 9/01/2006 Hycroft Res & Dev Inc NMC939377 Humboldt
FG 373 9/01/2006 Hycroft Res & Dev Inc NMC939378 Humboldt
FG 374 9/01/2006 Hycroft Res & Dev Inc NMC939379 Humboldt
FG 375 9/01/2006 Hycroft Res & Dev Inc NMC939380 Humboldt
FG 376 9/01/2006 Hycroft Res & Dev Inc NMC939381 Humboldt
FG 421 9/01/2006 Hycroft Res & Dev Inc NMC939426 Humboldt
FG 423 9/01/2006 Hycroft Res & Dev Inc NMC939428 Humboldt
FG 424 9/01/2006 Hycroft Res & Dev Inc NMC939429 Humboldt
FG 425 9/01/2006 Hycroft Res & Dev Inc NMC939430 Humboldt
FG 426 9/01/2006 Hycroft Res & Dev Inc NMC939431 Humboldt
FG 427 9/01/2006 Hycroft Res & Dev Inc NMC939432 Humboldt
FG 428 9/01/2006 Hycroft Res & Dev Inc NMC939433 Humboldt
FG 429 9/01/2006 Hycroft Res & Dev Inc NMC939434 Humboldt
FG 430 9/01/2006 Hycroft Res & Dev Inc NMC939435 Humboldt
FG 431 9/01/2006 Hycroft Res & Dev Inc NMC939436 Humboldt
FG 432 9/01/2006 Hycroft Res & Dev Inc NMC939437 Humboldt
FG422 9/01/2006 Hycroft Res & Dev Inc NMC939427 Humboldt
HRDI 224 4/15/2014 Hycroft Res & Dev Inc NMC1102182 Humboldt
HRDI 225 4/15/2014 Hycroft Res & Dev Inc NMC1102183 Humboldt
HRDI 226 4/15/2014 Hycroft Res & Dev Inc NMC1102184 Humboldt
HRDI 227 4/15/2014 Hycroft Res & Dev Inc NMC1102185 Humboldt
HRDI 228 4/15/2014 Hycroft Res & Dev Inc NMC1102186 Humboldt
HRDI 229 4/15/2014 Hycroft Res & Dev Inc NMC1102187 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | C

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
HRDI 230 4/15/2014 Hycroft Res & Dev Inc NMC1102188 Humboldt
Mayo 3/11/1989 Hycroft Res & Dev Inc NMC545997 Humboldt
NC 1 8/14/2010 Hycroft Res & Dev Inc NMC1027839 Humboldt
NC 10 8/14/2010 Hycroft Res & Dev Inc NMC1027848 Humboldt
NC 11 8/14/2010 Hycroft Res & Dev Inc NMC1027849 Humboldt
NC 110 8/14/2010 Hycroft Res & Dev Inc NMC1027948 Humboldt
NC 111 8/14/2010 Hycroft Res & Dev Inc NMC1027949 Humboldt
NC 112 8/14/2010 Hycroft Res & Dev Inc NMC1027950 Humboldt
NC 113 8/14/2010 Hycroft Res & Dev Inc NMC1027951 Humboldt
NC 114 8/14/2010 Hycroft Res & Dev Inc NMC1027952 Humboldt
NC 115 8/14/2010 Hycroft Res & Dev Inc NMC1027953 Humboldt
NC 116 8/14/2010 Hycroft Res & Dev Inc NMC1027954 Humboldt
NC 117 8/14/2010 Hycroft Res & Dev Inc NMC1027955 Humboldt
NC 118 8/14/2010 Hycroft Res & Dev Inc NMC1027956 Humboldt
NC 119 8/14/2010 Hycroft Res & Dev Inc NMC1027957 Humboldt
NC 12 8/14/2010 Hycroft Res & Dev Inc NMC1027850 Humboldt
NC 120 8/14/2010 Hycroft Res & Dev Inc NMC1027958 Humboldt
NC 121 8/14/2010 Hycroft Res & Dev Inc NMC1027959 Humboldt
NC 122 8/14/2010 Hycroft Res & Dev Inc NMC1027960 Humboldt
NC 123 8/14/2010 Hycroft Res & Dev Inc NMC1027961 Humboldt
NC 124 8/14/2010 Hycroft Res & Dev Inc NMC1027962 Humboldt
NC 125 8/14/2010 Hycroft Res & Dev Inc NMC1027963 Humboldt
NC 126 8/14/2010 Hycroft Res & Dev Inc NMC1027964 Humboldt
NC 127 8/14/2010 Hycroft Res & Dev Inc NMC1027965 Humboldt
NC 128 8/14/2010 Hycroft Res & Dev Inc NMC1027966 Humboldt
NC 129 8/14/2010 Hycroft Res & Dev Inc NMC1027967 Humboldt
NC 13 8/14/2010 Hycroft Res & Dev Inc NMC1027851 Humboldt
NC 130 8/14/2010 Hycroft Res & Dev Inc NMC1027968 Humboldt
NC 131 8/14/2010 Hycroft Res & Dev Inc NMC1027969 Humboldt
NC 14 8/14/2010 Hycroft Res & Dev Inc NMC1027852 Humboldt
NC 15 8/14/2010 Hycroft Res & Dev Inc NMC1027853 Humboldt
NC 151 8/14/2010 Hycroft Res & Dev Inc NMC1027989 Humboldt
NC 152 8/14/2010 Hycroft Res & Dev Inc NMC1027990 Humboldt
NC 153 8/14/2010 Hycroft Res & Dev Inc NMC1027991 Humboldt
NC 154 8/14/2010 Hycroft Res & Dev Inc NMC1027992 Humboldt
NC 155 8/14/2010 Hycroft Res & Dev Inc NMC1027993 Humboldt
NC 156 8/14/2010 Hycroft Res & Dev Inc NMC1027994 Humboldt
NC 157 8/14/2010 Hycroft Res & Dev Inc NMC1027995 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | D

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 158 8/14/2010 Hycroft Res & Dev Inc NMC1027996 Humboldt
NC 159 8/14/2010 Hycroft Res & Dev Inc NMC1027997 Humboldt
NC 16 8/14/2010 Hycroft Res & Dev Inc NMC1027854 Humboldt
NC 160 8/14/2010 Hycroft Res & Dev Inc NMC1027998 Humboldt
NC 161 8/14/2010 Hycroft Res & Dev Inc NMC1027999 Humboldt
NC 162 8/14/2010 Hycroft Res & Dev Inc NMC1028000 Humboldt
NC 163 8/14/2010 Hycroft Res & Dev Inc NMC1028001 Humboldt
NC 164 8/14/2010 Hycroft Res & Dev Inc NMC1028002 Humboldt
NC 165 8/14/2010 Hycroft Res & Dev Inc NMC1028003 Humboldt
NC 166 8/14/2010 Hycroft Res & Dev Inc NMC1028004 Humboldt
NC 167 8/14/2010 Hycroft Res & Dev Inc NMC1028005 Humboldt
NC 168 8/14/2010 Hycroft Res & Dev Inc NMC1028006 Humboldt
NC 169 8/14/2010 Hycroft Res & Dev Inc NMC1028007 Humboldt
NC 189 8/14/2010 Hycroft Res & Dev Inc NMC1028027 Humboldt
NC 190 8/14/2010 Hycroft Res & Dev Inc NMC1028028 Humboldt
NC 191 8/14/2010 Hycroft Res & Dev Inc NMC1028029 Humboldt
NC 192 8/14/2010 Hycroft Res & Dev Inc NMC1028030 Humboldt
NC 193 8/14/2010 Hycroft Res & Dev Inc NMC1028031 Humboldt
NC 194 8/14/2010 Hycroft Res & Dev Inc NMC1028032 Humboldt
NC 195 8/14/2010 Hycroft Res & Dev Inc NMC1028033 Humboldt
NC 196 8/14/2010 Hycroft Res & Dev Inc NMC1028034 Humboldt
NC 197 8/14/2010 Hycroft Res & Dev Inc NMC1028035 Humboldt
NC 198 8/14/2010 Hycroft Res & Dev Inc NMC1028036 Humboldt
NC 199 8/14/2010 Hycroft Res & Dev Inc NMC1028037 Humboldt
NC 2 8/14/2010 Hycroft Res & Dev Inc NMC1027840 Humboldt
NC 200 8/14/2010 Hycroft Res & Dev Inc NMC1028038 Humboldt
NC 201 8/14/2010 Hycroft Res & Dev Inc NMC1028039 Humboldt
NC 202 8/14/2010 Hycroft Res & Dev Inc NMC1028040 Humboldt
NC 203 8/14/2010 Hycroft Res & Dev Inc NMC1028041 Humboldt
NC 204 8/14/2010 Hycroft Res & Dev Inc NMC1028042 Humboldt
NC 224 8/14/2010 Hycroft Res & Dev Inc NMC1028062 Humboldt
NC 225 8/14/2010 Hycroft Res & Dev Inc NMC1028063 Humboldt
NC 226 8/14/2010 Hycroft Res & Dev Inc NMC1028064 Humboldt
NC 227 8/14/2010 Hycroft Res & Dev Inc NMC1028065 Humboldt
NC 228 8/14/2010 Hycroft Res & Dev Inc NMC1028066 Humboldt
NC 229 8/14/2010 Hycroft Res & Dev Inc NMC1028067 Humboldt
NC 230 8/14/2010 Hycroft Res & Dev Inc NMC1028068 Humboldt
NC 231 8/14/2010 Hycroft Res & Dev Inc NMC1028069 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | E

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 232 8/14/2010 Hycroft Res & Dev Inc NMC1028070 Humboldt
NC 233 8/14/2010 Hycroft Res & Dev Inc NMC1028071 Humboldt
NC 234 8/14/2010 Hycroft Res & Dev Inc NMC1028072 Humboldt
NC 235 8/14/2010 Hycroft Res & Dev Inc NMC1028073 Humboldt
NC 236 8/14/2010 Hycroft Res & Dev Inc NMC1028074 Humboldt
NC 237 8/14/2010 Hycroft Res & Dev Inc NMC1028075 Humboldt
NC 238 8/14/2010 Hycroft Res & Dev Inc NMC1028076 Humboldt
NC 239 8/14/2010 Hycroft Res & Dev Inc NMC1028077 Humboldt
NC 259 8/14/2010 Hycroft Res & Dev Inc NMC1028097 Humboldt
NC 260 8/14/2010 Hycroft Res & Dev Inc NMC1028098 Humboldt
NC 261 8/14/2010 Hycroft Res & Dev Inc NMC1028099 Humboldt
NC 262 8/14/2010 Hycroft Res & Dev Inc NMC1028100 Humboldt
NC 263 8/14/2010 Hycroft Res & Dev Inc NMC1028101 Humboldt
NC 264 8/14/2010 Hycroft Res & Dev Inc NMC1028102 Humboldt
NC 265 8/14/2010 Hycroft Res & Dev Inc NMC1028103 Humboldt
NC 266 8/14/2010 Hycroft Res & Dev Inc NMC1028104 Humboldt
NC 267 8/14/2010 Hycroft Res & Dev Inc NMC1028105 Humboldt
NC 268 8/14/2010 Hycroft Res & Dev Inc NMC1028106 Humboldt
NC 269 8/14/2010 Hycroft Res & Dev Inc NMC1028107 Humboldt
NC 270 8/14/2010 Hycroft Res & Dev Inc NMC1028108 Humboldt
NC 271 8/14/2010 Hycroft Res & Dev Inc NMC1028109 Humboldt
NC 272 8/14/2010 Hycroft Res & Dev Inc NMC1028110 Humboldt
NC 273 8/14/2010 Hycroft Res & Dev Inc NMC1028111 Humboldt
NC 293 8/14/2010 Hycroft Res & Dev Inc NMC1028131 Humboldt
NC 294 8/14/2010 Hycroft Res & Dev Inc NMC1028132 Humboldt
NC 295 8/14/2010 Hycroft Res & Dev Inc NMC1028133 Humboldt
NC 296 8/14/2010 Hycroft Res & Dev Inc NMC1028134 Humboldt
NC 297 8/14/2010 Hycroft Res & Dev Inc NMC1028135 Humboldt
NC 298 8/14/2010 Hycroft Res & Dev Inc NMC1028136 Humboldt
NC 299 8/14/2010 Hycroft Res & Dev Inc NMC1028137 Humboldt
NC 3 8/14/2010 Hycroft Res & Dev Inc NMC1027841 Humboldt
NC 300 8/14/2010 Hycroft Res & Dev Inc NMC1028138 Humboldt
NC 301 8/14/2010 Hycroft Res & Dev Inc NMC1028139 Humboldt
NC 302 8/14/2010 Hycroft Res & Dev Inc NMC1028140 Humboldt
NC 303 8/14/2010 Hycroft Res & Dev Inc NMC1028141 Humboldt
NC 304 8/14/2010 Hycroft Res & Dev Inc NMC1028142 Humboldt
NC 305 8/14/2010 Hycroft Res & Dev Inc NMC1028143 Humboldt
NC 31 8/14/2010 Hycroft Res & Dev Inc NMC1027869 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | F

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 32 8/14/2010 Hycroft Res & Dev Inc NMC1027870 Humboldt
NC 33 8/14/2010 Hycroft Res & Dev Inc NMC1027871 Humboldt
NC 34 8/14/2010 Hycroft Res & Dev Inc NMC1027872 Humboldt
NC 35 8/14/2010 Hycroft Res & Dev Inc NMC1027873 Humboldt
NC 36 8/14/2010 Hycroft Res & Dev Inc NMC1027874 Humboldt
NC 37 8/14/2010 Hycroft Res & Dev Inc NMC1027875 Humboldt
NC 38 8/14/2010 Hycroft Res & Dev Inc NMC1027876 Humboldt
NC 39 8/14/2010 Hycroft Res & Dev Inc NMC1027877 Humboldt
NC 4 8/14/2010 Hycroft Res & Dev Inc NMC1027842 Humboldt
NC 40 8/14/2010 Hycroft Res & Dev Inc NMC1027878 Humboldt
NC 41 8/14/2010 Hycroft Res & Dev Inc NMC1027879 Humboldt
NC 42 8/14/2010 Hycroft Res & Dev Inc NMC1027880 Humboldt
NC 43 8/14/2010 Hycroft Res & Dev Inc NMC1027881 Humboldt
NC 44 8/14/2010 Hycroft Res & Dev Inc NMC1027882 Humboldt
NC 45 8/14/2010 Hycroft Res & Dev Inc NMC1027883 Humboldt
NC 46 8/14/2010 Hycroft Res & Dev Inc NMC1027884 Humboldt
NC 47 8/14/2010 Hycroft Res & Dev Inc NMC1027885 Humboldt
NC 48 8/14/2010 Hycroft Res & Dev Inc NMC1027886 Humboldt
NC 49 8/14/2010 Hycroft Res & Dev Inc NMC1027887 Humboldt
NC 5 8/14/2010 Hycroft Res & Dev Inc NMC1027843 Humboldt
NC 6 8/14/2010 Hycroft Res & Dev Inc NMC1027844 Humboldt
NC 69 8/14/2010 Hycroft Res & Dev Inc NMC1027907 Humboldt
NC 7 8/14/2010 Hycroft Res & Dev Inc NMC1027845 Humboldt
NC 70 8/14/2010 Hycroft Res & Dev Inc NMC1027908 Humboldt
NC 71 8/14/2010 Hycroft Res & Dev Inc NMC1027909 Humboldt
NC 72 8/14/2010 Hycroft Res & Dev Inc NMC1027910 Humboldt
NC 73 8/14/2010 Hycroft Res & Dev Inc NMC1027911 Humboldt
NC 74 8/14/2010 Hycroft Res & Dev Inc NMC1027912 Humboldt
NC 75 8/14/2010 Hycroft Res & Dev Inc NMC1027913 Humboldt
NC 76 8/14/2010 Hycroft Res & Dev Inc NMC1027914 Humboldt
NC 77 8/14/2010 Hycroft Res & Dev Inc NMC1027915 Humboldt
NC 78 8/14/2010 Hycroft Res & Dev Inc NMC1027916 Humboldt
NC 79 8/14/2010 Hycroft Res & Dev Inc NMC1027917 Humboldt
NC 8 8/14/2010 Hycroft Res & Dev Inc NMC1027846 Humboldt
NC 80 8/14/2010 Hycroft Res & Dev Inc NMC1027918 Humboldt
NC 81 8/14/2010 Hycroft Res & Dev Inc NMC1027919 Humboldt
NC 82 8/14/2010 Hycroft Res & Dev Inc NMC1027920 Humboldt
NC 83 8/14/2010 Hycroft Res & Dev Inc NMC1027921 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | G

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 84 8/14/2010 Hycroft Res & Dev Inc NMC1027922 Humboldt
NC 85 8/14/2010 Hycroft Res & Dev Inc NMC1027923 Humboldt
NC 86 8/14/2010 Hycroft Res & Dev Inc NMC1027924 Humboldt
NC 87 8/14/2010 Hycroft Res & Dev Inc NMC1027925 Humboldt
NC 88 8/14/2010 Hycroft Res & Dev Inc NMC1027926 Humboldt
NC 89 8/14/2010 Hycroft Res & Dev Inc NMC1027927 Humboldt
NC 9 8/14/2010 Hycroft Res & Dev Inc NMC1027847 Humboldt
NC 90 8/14/2010 Hycroft Res & Dev Inc NMC1027928 Humboldt
NFG 1 10/10/2006 Hycroft Res & Dev Inc NMC939506 Humboldt
NFG 10 10/10/2006 Hycroft Res & Dev Inc NMC939515 Humboldt
NFG 100 10/10/2006 Hycroft Res & Dev Inc NMC939604 Humboldt
NFG 101 10/10/2006 Hycroft Res & Dev Inc NMC939605 Humboldt
NFG 102 10/10/2006 Hycroft Res & Dev Inc NMC939606 Humboldt
NFG 103 10/10/2006 Hycroft Res & Dev Inc NMC939607 Humboldt
NFG 104 10/10/2006 Hycroft Res & Dev Inc NMC939608 Humboldt
NFG 105 10/10/2006 Hycroft Res & Dev Inc NMC939609 Humboldt
NFG 106 10/10/2006 Hycroft Res & Dev Inc NMC939610 Humboldt
NFG 107 10/10/2006 Hycroft Res & Dev Inc NMC939611 Humboldt
NFG 108 10/10/2006 Hycroft Res & Dev Inc NMC939612 Humboldt
NFG 109 10/10/2006 Hycroft Res & Dev Inc NMC939613 Humboldt
NFG 11 10/10/2006 Hycroft Res & Dev Inc NMC939516 Humboldt
NFG 110 10/10/2006 Hycroft Res & Dev Inc NMC939614 Humboldt
NFG 111 10/10/2006 Hycroft Res & Dev Inc NMC939615 Humboldt
NFG 112 10/10/2006 Hycroft Res & Dev Inc NMC939616 Humboldt
NFG 113 10/10/2006 Hycroft Res & Dev Inc NMC939617 Humboldt
NFG 114 10/10/2006 Hycroft Res & Dev Inc NMC939618 Humboldt
NFG 115 10/10/2006 Hycroft Res & Dev Inc NMC939619 Humboldt
NFG 116 10/10/2006 Hycroft Res & Dev Inc NMC939620 Humboldt
NFG 117 10/10/2006 Hycroft Res & Dev Inc NMC939621 Humboldt
NFG 118 10/10/2006 Hycroft Res & Dev Inc NMC939622 Humboldt
NFG 119 10/10/2006 Hycroft Res & Dev Inc NMC939623 Humboldt
NFG 12 10/10/2006 Hycroft Res & Dev Inc NMC939517 Humboldt
NFG 120 10/10/2006 Hycroft Res & Dev Inc NMC939624 Humboldt
NFG 121 10/10/2006 Hycroft Res & Dev Inc NMC939625 Humboldt
NFG 122 10/10/2006 Hycroft Res & Dev Inc NMC939626 Humboldt
NFG 123 10/10/2006 Hycroft Res & Dev Inc NMC939627 Humboldt
NFG 124 10/10/2006 Hycroft Res & Dev Inc NMC939628 Humboldt
NFG 125 10/10/2006 Hycroft Res & Dev Inc NMC939629 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | H

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NFG 126 10/10/2006 Hycroft Res & Dev Inc NMC939630 Humboldt
NFG 127 10/10/2006 Hycroft Res & Dev Inc NMC939631 Humboldt
NFG 128 10/10/2006 Hycroft Res & Dev Inc NMC939632 Humboldt
NFG 129 10/10/2006 Hycroft Res & Dev Inc NMC939633 Humboldt
NFG 13 10/10/2006 Hycroft Res & Dev Inc NMC939518 Humboldt
NFG 130 10/10/2006 Hycroft Res & Dev Inc NMC939634 Humboldt
NFG 131 10/10/2006 Hycroft Res & Dev Inc NMC939635 Humboldt
NFG 132 10/10/2006 Hycroft Res & Dev Inc NMC939636 Humboldt
NFG 133 10/10/2006 Hycroft Res & Dev Inc NMC939637 Humboldt
NFG 134 10/10/2006 Hycroft Res & Dev Inc NMC939638 Humboldt
NFG 135 10/10/2006 Hycroft Res & Dev Inc NMC939639 Humboldt
NFG 136 10/10/2006 Hycroft Res & Dev Inc NMC939640 Humboldt
NFG 137 10/10/2006 Hycroft Res & Dev Inc NMC939641 Humboldt
NFG 138 10/10/2006 Hycroft Res & Dev Inc NMC939642 Humboldt
NFG 139 10/10/2006 Hycroft Res & Dev Inc NMC939643 Humboldt
NFG 14 10/10/2006 Hycroft Res & Dev Inc NMC939519 Humboldt
NFG 140 10/10/2006 Hycroft Res & Dev Inc NMC939644 Humboldt
NFG 141 10/10/2006 Hycroft Res & Dev Inc NMC939645 Humboldt
NFG 142 10/10/2006 Hycroft Res & Dev Inc NMC939646 Humboldt
NFG 143 10/10/2006 Hycroft Res & Dev Inc NMC939647 Humboldt
NFG 144 10/10/2006 Hycroft Res & Dev Inc NMC939648 Humboldt
NFG 145 10/10/2006 Hycroft Res & Dev Inc NMC939649 Humboldt
NFG 146 10/10/2006 Hycroft Res & Dev Inc NMC939650 Humboldt
NFG 147 10/10/2006 Hycroft Res & Dev Inc NMC939651 Humboldt
NFG 148 10/10/2006 Hycroft Res & Dev Inc NMC939652 Humboldt
NFG 149 10/10/2006 Hycroft Res & Dev Inc NMC939653 Humboldt
NFG 15 10/10/2006 Hycroft Res & Dev Inc NMC939520 Humboldt
NFG 150 10/10/2006 Hycroft Res & Dev Inc NMC939654 Humboldt
NFG 151 10/10/2006 Hycroft Res & Dev Inc NMC939655 Humboldt
NFG 152 10/10/2006 Hycroft Res & Dev Inc NMC939656 Humboldt
NFG 153 10/10/2006 Hycroft Res & Dev Inc NMC939657 Humboldt
NFG 154 10/10/2006 Hycroft Res & Dev Inc NMC939658 Humboldt
NFG 155 10/10/2006 Hycroft Res & Dev Inc NMC939659 Humboldt
NFG 156 10/10/2006 Hycroft Res & Dev Inc NMC939660 Humboldt
NFG 157 10/10/2006 Hycroft Res & Dev Inc NMC939661 Humboldt
NFG 158 10/10/2006 Hycroft Res & Dev Inc NMC939662 Humboldt
NFG 159 10/10/2006 Hycroft Res & Dev Inc NMC939663 Humboldt
NFG 16 10/10/2006 Hycroft Res & Dev Inc NMC939521 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | I

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NFG 160 10/10/2006 Hycroft Res & Dev Inc NMC939664 Humboldt
NFG 161 10/10/2006 Hycroft Res & Dev Inc NMC939665 Humboldt
NFG 162 10/10/2006 Hycroft Res & Dev Inc NMC939666 Humboldt
NFG 163 10/10/2006 Hycroft Res & Dev Inc NMC939667 Humboldt
NFG 164 10/10/2006 Hycroft Res & Dev Inc NMC939668 Humboldt
NFG 165 10/10/2006 Hycroft Res & Dev Inc NMC939669 Humboldt
NFG 166 10/10/2006 Hycroft Res & Dev Inc NMC939670 Humboldt
NFG 167 10/10/2006 Hycroft Res & Dev Inc NMC939671 Humboldt
NFG 168 10/10/2006 Hycroft Res & Dev Inc NMC939672 Humboldt
NFG 169 10/10/2006 Hycroft Res & Dev Inc NMC939673 Humboldt
NFG 17 10/10/2006 Hycroft Res & Dev Inc NMC939522 Humboldt
NFG 170 10/10/2006 Hycroft Res & Dev Inc NMC939674 Humboldt
NFG 171 10/10/2006 Hycroft Res & Dev Inc NMC939675 Humboldt
NFG 172 10/10/2006 Hycroft Res & Dev Inc NMC939676 Humboldt
NFG 173 10/10/2006 Hycroft Res & Dev Inc NMC939677 Humboldt
NFG 174 10/10/2006 Hycroft Res & Dev Inc NMC939678 Humboldt
NFG 175 10/10/2006 Hycroft Res & Dev Inc NMC939679 Humboldt
NFG 176 10/10/2006 Hycroft Res & Dev Inc NMC939680 Humboldt
NFG 177 10/10/2006 Hycroft Res & Dev Inc NMC939681 Humboldt
NFG 178 10/10/2006 Hycroft Res & Dev Inc NMC939682 Humboldt
NFG 179 10/10/2006 Hycroft Res & Dev Inc NMC939683 Humboldt
NFG 18 10/10/2006 Hycroft Res & Dev Inc NMC939523 Humboldt
NFG 180 10/10/2006 Hycroft Res & Dev Inc NMC939684 Humboldt
NFG 181 10/10/2006 Hycroft Res & Dev Inc NMC939685 Humboldt
NFG 182 10/10/2006 Hycroft Res & Dev Inc NMC939686 Humboldt
NFG 183 10/10/2006 Hycroft Res & Dev Inc NMC939687 Humboldt
NFG 184 10/10/2006 Hycroft Res & Dev Inc NMC939688 Humboldt
NFG 185 10/10/2006 Hycroft Res & Dev Inc NMC939689 Humboldt
NFG 186 10/10/2006 Hycroft Res & Dev Inc NMC939690 Humboldt
NFG 187 10/10/2006 Hycroft Res & Dev Inc NMC939691 Humboldt
NFG 19 10/10/2006 Hycroft Res & Dev Inc NMC939524 Humboldt
NFG 2 10/10/2006 Hycroft Res & Dev Inc NMC939507 Humboldt
NFG 20 10/10/2006 Hycroft Res & Dev Inc NMC939525 Humboldt
NFG 21 10/10/2006 Hycroft Res & Dev Inc NMC939526 Humboldt
NFG 22 10/10/2006 Hycroft Res & Dev Inc NMC939527 Humboldt
NFG 23 10/10/2006 Hycroft Res & Dev Inc NMC939528 Humboldt
NFG 24 10/10/2006 Hycroft Res & Dev Inc NMC939529 Humboldt
NFG 25 10/10/2006 Hycroft Res & Dev Inc NMC939530 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | J

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NFG 26 10/10/2006 Hycroft Res & Dev Inc NMC939531 Humboldt
NFG 27 10/10/2006 Hycroft Res & Dev Inc NMC939532 Humboldt
NFG 28 10/10/2006 Hycroft Res & Dev Inc NMC939533 Humboldt
NFG 29 10/10/2006 Hycroft Res & Dev Inc NMC939534 Humboldt
NFG 3 10/10/2006 Hycroft Res & Dev Inc NMC939508 Humboldt
NFG 30 10/10/2006 Hycroft Res & Dev Inc NMC939535 Humboldt
NFG 31 10/10/2006 Hycroft Res & Dev Inc NMC939536 Humboldt
NFG 32 10/10/2006 Hycroft Res & Dev Inc NMC939537 Humboldt
NFG 33 10/10/2006 Hycroft Res & Dev Inc NMC939538 Humboldt
NFG 34 10/10/2006 Hycroft Res & Dev Inc NMC939539 Humboldt
NFG 35 10/10/2006 Hycroft Res & Dev Inc NMC939540 Humboldt
NFG 36 10/10/2006 Hycroft Res & Dev Inc NMC939541 Humboldt
NFG 37 10/10/2006 Hycroft Res & Dev Inc NMC939542 Humboldt
NFG 38 10/10/2006 Hycroft Res & Dev Inc NMC939543 Humboldt
NFG 39 10/10/2006 Hycroft Res & Dev Inc NMC939544 Humboldt
NFG 4 10/10/2006 Hycroft Res & Dev Inc NMC939509 Humboldt
NFG 40 10/10/2006 Hycroft Res & Dev Inc NMC939545 Humboldt
NFG 41 10/10/2006 Hycroft Res & Dev Inc NMC939546 Humboldt
NFG 42 10/10/2006 Hycroft Res & Dev Inc NMC939547 Humboldt
NFG 43 10/10/2006 Hycroft Res & Dev Inc NMC939548 Humboldt
NFG 44 10/10/2006 Hycroft Res & Dev Inc NMC939549 Humboldt
NFG 45 10/10/2006 Hycroft Res & Dev Inc NMC939550 Humboldt
NFG 46 10/10/2006 Hycroft Res & Dev Inc NMC939551 Humboldt
NFG 47 10/10/2006 Hycroft Res & Dev Inc NMC939552 Humboldt
NFG 48 10/10/2006 Hycroft Res & Dev Inc NMC939553 Humboldt
NFG 49 10/10/2006 Hycroft Res & Dev Inc NMC939554 Humboldt
NFG 5 10/10/2006 Hycroft Res & Dev Inc NMC939510 Humboldt
NFG 50 10/10/2006 Hycroft Res & Dev Inc NMC939555 Humboldt
NFG 51 10/10/2006 Hycroft Res & Dev Inc NMC939556 Humboldt
NFG 52 10/10/2006 Hycroft Res & Dev Inc NMC939557 Humboldt
NFG 53 10/10/2006 Hycroft Res & Dev Inc NMC939558 Humboldt
NFG 54 10/10/2006 Hycroft Res & Dev Inc NMC939559 Humboldt
NFG 55 10/10/2006 Hycroft Res & Dev Inc NMC939560 Humboldt
NFG 56 10/10/2006 Hycroft Res & Dev Inc NMC939561 Humboldt
NFG 57 10/10/2006 Hycroft Res & Dev Inc NMC939562 Humboldt
NFG 58 10/10/2006 Hycroft Res & Dev Inc NMC939563 Humboldt
NFG 59 10/10/2006 Hycroft Res & Dev Inc NMC939564 Humboldt
NFG 6 10/10/2006 Hycroft Res & Dev Inc NMC939511 Humboldt

  

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | K

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NFG 60 10/10/2006 Hycroft Res & Dev Inc NMC939565 Humboldt
NFG 61 10/10/2006 Hycroft Res & Dev Inc NMC939566 Humboldt
NFG 62 10/10/2006 Hycroft Res & Dev Inc NMC939567 Humboldt
NFG 63 10/10/2006 Hycroft Res & Dev Inc NMC939568 Humboldt
NFG 64 10/10/2006 Hycroft Res & Dev Inc NMC939569 Humboldt
NFG 65 10/10/2006 Hycroft Res & Dev Inc NMC939570 Humboldt
NFG 66 10/10/2006 Hycroft Res & Dev Inc NMC939571 Humboldt
NFG 67 10/10/2006 Hycroft Res & Dev Inc NMC939572 Humboldt
NFG 68 10/10/2006 Hycroft Res & Dev Inc NMC939573 Humboldt
NFG 69 10/10/2006 Hycroft Res & Dev Inc NMC939574 Humboldt
NFG 7 10/10/2006 Hycroft Res & Dev Inc NMC939512 Humboldt
NFG 70 10/10/2006 Hycroft Res & Dev Inc NMC939575 Humboldt
NFG 71 10/10/2006 Hycroft Res & Dev Inc NMC939576 Humboldt
NFG 72 10/10/2006 Hycroft Res & Dev Inc NMC939577 Humboldt
NFG 73 10/10/2006 Hycroft Res & Dev Inc NMC939578 Humboldt
NFG 74 10/10/2006 Hycroft Res & Dev Inc NMC939579 Humboldt
NFG 76 10/10/2006 Hycroft Res & Dev Inc NMC939580 Humboldt
NFG 78 10/10/2006 Hycroft Res & Dev Inc NMC939582 Humboldt
NFG 79 10/10/2006 Hycroft Res & Dev Inc NMC939583 Humboldt
NFG 8 10/10/2006 Hycroft Res & Dev Inc NMC939513 Humboldt
NFG 80 10/10/2006 Hycroft Res & Dev Inc NMC939584 Humboldt
NFG 81 10/10/2006 Hycroft Res & Dev Inc NMC939585 Humboldt
NFG 82 10/10/2006 Hycroft Res & Dev Inc NMC939586 Humboldt
NFG 83 10/10/2006 Hycroft Res & Dev Inc NMC939587 Humboldt
NFG 84 10/10/2006 Hycroft Res & Dev Inc NMC939588 Humboldt
NFG 85 10/10/2006 Hycroft Res & Dev Inc NMC939589 Humboldt
NFG 86 10/10/2006 Hycroft Res & Dev Inc NMC939590 Humboldt
NFG 87 10/10/2006 Hycroft Res & Dev Inc NMC939591 Humboldt
NFG 88 10/10/2006 Hycroft Res & Dev Inc NMC939592 Humboldt
NFG 89 10/10/2006 Hycroft Res & Dev Inc NMC939593 Humboldt
NFG 9 10/10/2006 Hycroft Res & Dev Inc NMC939514 Humboldt
NFG 90 10/10/2006 Hycroft Res & Dev Inc NMC939594 Humboldt
NFG 91 10/10/2006 Hycroft Res & Dev Inc NMC939595 Humboldt
NFG 92 10/10/2006 Hycroft Res & Dev Inc NMC939596 Humboldt
NFG 93 10/10/2006 Hycroft Res & Dev Inc NMC939597 Humboldt
NFG 94 10/10/2006 Hycroft Res & Dev Inc NMC939598 Humboldt
NFG 95 10/10/2006 Hycroft Res & Dev Inc NMC939599 Humboldt
NFG 96 10/10/2006 Hycroft Res & Dev Inc NMC939600 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | L

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NFG 97 10/10/2006 Hycroft Res & Dev Inc NMC939601 Humboldt
NFG 98 10/10/2006 Hycroft Res & Dev Inc NMC939602 Humboldt
NFG 99 10/10/2006 Hycroft Res & Dev Inc NMC939603 Humboldt
NFG77 10/10/2006 Hycroft Res & Dev Inc NMC939581 Humboldt
NFRA 1 11/07/2007 Victory Exploration Inc. NMC977833 Humboldt
NFRA 2 11/07/2007 Victory Exploration Inc. NMC977834 Humboldt
NFRA 20 11/08/2007 Victory Exploration Inc. NMC977852 Humboldt
NFRA 3 11/07/2007 Victory Exploration Inc. NMC977835 Humboldt
NFRA16 11/07/2007 Victory Exploration Inc. NMC977848 Humboldt
NFRA17 11/07/2007 Victory Exploration Inc. NMC977849 Humboldt
NFRA18 11/07/2007 Victory Exploration Inc. NMC977850 Humboldt
NFRA19 11/07/2007 Victory Exploration Inc. NMC977851 Humboldt
NH 1 5/04/2008 Hycroft Res & Dev Inc NMC990154 Humboldt
NH 10 5/04/2008 Hycroft Res & Dev Inc NMC990163 Humboldt
NH 100 5/03/2008 Hycroft Res & Dev Inc NMC990253 Humboldt
NH 101 5/03/2008 Hycroft Res & Dev Inc NMC990254 Humboldt
NH 102 5/03/2008 Hycroft Res & Dev Inc NMC990255 Humboldt
NH 103 5/03/2008 Hycroft Res & Dev Inc NMC990256 Humboldt
NH 104 5/03/2008 Hycroft Res & Dev Inc NMC990257 Humboldt
NH 105 5/03/2008 Hycroft Res & Dev Inc NMC990258 Humboldt
NH 106 5/03/2008 Hycroft Res & Dev Inc NMC990259 Humboldt
NH 107 5/03/2008 Hycroft Res & Dev Inc NMC990260 Humboldt
NH 108 5/03/2008 Hycroft Res & Dev Inc NMC990261 Humboldt
NH 109 5/03/2008 Hycroft Res & Dev Inc NMC990262 Humboldt
NH 11 5/04/2008 Hycroft Res & Dev Inc NMC990164 Humboldt
NH 110 5/03/2008 Hycroft Res & Dev Inc NMC990263 Humboldt
NH 111 5/03/2008 Hycroft Res & Dev Inc NMC990264 Humboldt
NH 112 5/03/2008 Hycroft Res & Dev Inc NMC990265 Humboldt
NH 113 5/03/2008 Hycroft Res & Dev Inc NMC990266 Humboldt
NH 114 5/03/2008 Hycroft Res & Dev Inc NMC990267 Humboldt
NH 115 5/03/2008 Hycroft Res & Dev Inc NMC990268 Humboldt
NH 116 5/03/2008 Hycroft Res & Dev Inc NMC990269 Humboldt
NH 117 5/03/2008 Hycroft Res & Dev Inc NMC990270 Humboldt
NH 118 5/03/2008 Hycroft Res & Dev Inc NMC990271 Humboldt
NH 119 5/03/2008 Hycroft Res & Dev Inc NMC990272 Humboldt
NH 12 5/04/2008 Hycroft Res & Dev Inc NMC990165 Humboldt
NH 120 5/03/2008 Hycroft Res & Dev Inc NMC990273 Humboldt
NH 121 5/03/2008 Hycroft Res & Dev Inc NMC990274 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | M

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 122 5/03/2008 Hycroft Res & Dev Inc NMC990275 Humboldt
NH 123 5/03/2008 Hycroft Res & Dev Inc NMC990276 Humboldt
NH 124 5/03/2008 Hycroft Res & Dev Inc NMC990277 Humboldt
NH 125 5/03/2008 Hycroft Res & Dev Inc NMC990278 Humboldt
NH 126 5/03/2008 Hycroft Res & Dev Inc NMC990279 Humboldt
NH 127 5/03/2008 Hycroft Res & Dev Inc NMC990280 Humboldt
NH 128 5/03/2008 Hycroft Res & Dev Inc NMC990281 Humboldt
NH 129 5/03/2008 Hycroft Res & Dev Inc NMC990282 Humboldt
NH 13 5/04/2008 Hycroft Res & Dev Inc NMC990166 Humboldt
NH 130 5/03/2008 Hycroft Res & Dev Inc NMC990283 Humboldt
NH 131 5/03/2008 Hycroft Res & Dev Inc NMC990284 Humboldt
NH 132 5/03/2008 Hycroft Res & Dev Inc NMC990285 Humboldt
NH 133 5/03/2008 Hycroft Res & Dev Inc NMC990286 Humboldt
NH 134 5/03/2008 Hycroft Res & Dev Inc NMC990287 Humboldt
NH 135 5/03/2008 Hycroft Res & Dev Inc NMC990288 Humboldt
NH 136 5/03/2008 Hycroft Res & Dev Inc NMC990289 Humboldt
NH 137 5/03/2008 Hycroft Res & Dev Inc NMC990290 Humboldt
NH 138 5/03/2008 Hycroft Res & Dev Inc NMC990291 Humboldt
NH 139 5/03/2008 Hycroft Res & Dev Inc NMC990292 Humboldt
NH 14 5/04/2008 Hycroft Res & Dev Inc NMC990167 Humboldt
NH 140 5/03/2008 Hycroft Res & Dev Inc NMC990293 Humboldt
NH 141 5/03/2008 Hycroft Res & Dev Inc NMC990294 Humboldt
NH 142 5/03/2008 Hycroft Res & Dev Inc NMC990295 Humboldt
NH 143 5/03/2008 Hycroft Res & Dev Inc NMC990296 Humboldt
NH 144 5/03/2008 Hycroft Res & Dev Inc NMC990297 Humboldt
NH 145 5/03/2008 Hycroft Res & Dev Inc NMC990298 Humboldt
NH 146 5/03/2008 Hycroft Res & Dev Inc NMC990299 Humboldt
NH 147 5/03/2008 Hycroft Res & Dev Inc NMC990300 Humboldt
NH 148 5/03/2008 Hycroft Res & Dev Inc NMC990301 Humboldt
NH 149 5/03/2008 Hycroft Res & Dev Inc NMC990302 Humboldt
NH 15 5/04/2008 Hycroft Res & Dev Inc NMC990168 Humboldt
NH 150 5/03/2008 Hycroft Res & Dev Inc NMC990303 Humboldt
NH 151 5/02/2008 Hycroft Res & Dev Inc NMC990304 Humboldt
NH 152 5/02/2008 Hycroft Res & Dev Inc NMC990305 Humboldt
NH 153 5/02/2008 Hycroft Res & Dev Inc NMC990306 Humboldt
NH 154 5/02/2008 Hycroft Res & Dev Inc NMC990307 Humboldt
NH 155 5/02/2008 Hycroft Res & Dev Inc NMC990308 Humboldt
NH 156 5/02/2008 Hycroft Res & Dev Inc NMC990309 Humboldt

  

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | N

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 157 5/02/2008 Hycroft Res & Dev Inc NMC990310 Humboldt
NH 158 5/02/2008 Hycroft Res & Dev Inc NMC990311 Humboldt
NH 159 5/02/2008 Hycroft Res & Dev Inc NMC990312 Humboldt
NH 16 5/04/2008 Hycroft Res & Dev Inc NMC990169 Humboldt
NH 160 5/02/2008 Hycroft Res & Dev Inc NMC990313 Humboldt
NH 161 5/02/2008 Hycroft Res & Dev Inc NMC990314 Humboldt
NH 162 5/02/2008 Hycroft Res & Dev Inc NMC990315 Humboldt
NH 163 5/02/2008 Hycroft Res & Dev Inc NMC990316 Humboldt
NH 164 5/02/2008 Hycroft Res & Dev Inc NMC990317 Humboldt
NH 165 5/02/2008 Hycroft Res & Dev Inc NMC990318 Humboldt
NH 166 5/02/2008 Hycroft Res & Dev Inc NMC990319 Humboldt
NH 167 5/02/2008 Hycroft Res & Dev Inc NMC990320 Humboldt
NH 168 5/02/2008 Hycroft Res & Dev Inc NMC990321 Humboldt
NH 169 5/02/2008 Hycroft Res & Dev Inc NMC990322 Humboldt
NH 17 5/04/2008 Hycroft Res & Dev Inc NMC990170 Humboldt
NH 170 5/02/2008 Hycroft Res & Dev Inc NMC990323 Humboldt
NH 171 5/02/2008 Hycroft Res & Dev Inc NMC990324 Humboldt
NH 172 5/02/2008 Hycroft Res & Dev Inc NMC990325 Humboldt
NH 173 5/02/2008 Hycroft Res & Dev Inc NMC990326 Humboldt
NH 174 5/02/2008 Hycroft Res & Dev Inc NMC990327 Humboldt
NH 175 5/02/2008 Hycroft Res & Dev Inc NMC990328 Humboldt
NH 176 5/02/2008 Hycroft Res & Dev Inc NMC990329 Humboldt
NH 177 5/02/2008 Hycroft Res & Dev Inc NMC990330 Humboldt
NH 178 5/02/2008 Hycroft Res & Dev Inc NMC990331 Humboldt
NH 179 5/02/2008 Hycroft Res & Dev Inc NMC990332 Humboldt
NH 18 5/04/2008 Hycroft Res & Dev Inc NMC990171 Humboldt
NH 180 5/02/2008 Hycroft Res & Dev Inc NMC990333 Humboldt
NH 181 5/02/2008 Hycroft Res & Dev Inc NMC990334 Humboldt
NH 182 5/02/2008 Hycroft Res & Dev Inc NMC990335 Humboldt
NH 183 5/02/2008 Hycroft Res & Dev Inc NMC990336 Humboldt
NH 184 5/02/2008 Hycroft Res & Dev Inc NMC990337 Humboldt
NH 185 5/02/2008 Hycroft Res & Dev Inc NMC990338 Humboldt
NH 186 5/02/2008 Hycroft Res & Dev Inc NMC990339 Humboldt
NH 187 5/02/2008 Hycroft Res & Dev Inc NMC990340 Humboldt
NH 188 5/02/2008 Hycroft Res & Dev Inc NMC990341 Humboldt
NH 189 5/02/2008 Hycroft Res & Dev Inc NMC990342 Humboldt
NH 19 5/04/2008 Hycroft Res & Dev Inc NMC990172 Humboldt
NH 190 5/02/2008 Hycroft Res & Dev Inc NMC990343 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | O

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 191 5/02/2008 Hycroft Res & Dev Inc NMC990344 Humboldt
NH 192 5/02/2008 Hycroft Res & Dev Inc NMC990345 Humboldt
NH 193 5/02/2008 Hycroft Res & Dev Inc NMC990346 Humboldt
NH 194 5/02/2008 Hycroft Res & Dev Inc NMC990347 Humboldt
NH 195 5/02/2008 Hycroft Res & Dev Inc NMC990348 Humboldt
NH 196 5/02/2008 Hycroft Res & Dev Inc NMC990349 Humboldt
NH 197 5/02/2008 Hycroft Res & Dev Inc NMC990350 Humboldt
NH 198 5/02/2008 Hycroft Res & Dev Inc NMC990351 Humboldt
NH 199 5/02/2008 Hycroft Res & Dev Inc NMC990352 Humboldt
NH 2 5/04/2008 Hycroft Res & Dev Inc NMC990155 Humboldt
NH 20 5/04/2008 Hycroft Res & Dev Inc NMC990173 Humboldt
NH 200 5/02/2008 Hycroft Res & Dev Inc NMC990353 Humboldt
NH 201 5/02/2008 Hycroft Res & Dev Inc NMC990354 Humboldt
NH 202 5/02/2008 Hycroft Res & Dev Inc NMC990355 Humboldt
NH 203 5/02/2008 Hycroft Res & Dev Inc NMC990356 Humboldt
NH 204 5/02/2008 Hycroft Res & Dev Inc NMC990357 Humboldt
NH 205 5/02/2008 Hycroft Res & Dev Inc NMC990358 Humboldt
NH 206 5/02/2008 Hycroft Res & Dev Inc NMC990359 Humboldt
NH 207 5/02/2008 Hycroft Res & Dev Inc NMC990360 Humboldt
NH 208 5/02/2008 Hycroft Res & Dev Inc NMC990361 Humboldt
NH 209 5/02/2008 Hycroft Res & Dev Inc NMC990362 Humboldt
NH 21 5/04/2008 Hycroft Res & Dev Inc NMC990174 Humboldt
NH 210 5/02/2008 Hycroft Res & Dev Inc NMC990363 Humboldt
NH 211 5/02/2008 Hycroft Res & Dev Inc NMC990364 Humboldt
NH 212 5/02/2008 Hycroft Res & Dev Inc NMC990365 Humboldt
NH 213 5/02/2008 Hycroft Res & Dev Inc NMC990366 Humboldt
NH 214 5/02/2008 Hycroft Res & Dev Inc NMC990367 Humboldt
NH 215 5/02/2008 Hycroft Res & Dev Inc NMC990368 Humboldt
NH 216 5/02/2008 Hycroft Res & Dev Inc NMC990369 Humboldt
NH 217 5/02/2008 Hycroft Res & Dev Inc NMC990370 Humboldt
NH 218 5/02/2008 Hycroft Res & Dev Inc NMC990371 Humboldt
NH 219 5/02/2008 Hycroft Res & Dev Inc NMC990372 Humboldt
NH 22 5/04/2008 Hycroft Res & Dev Inc NMC990175 Humboldt
NH 220 5/02/2008 Hycroft Res & Dev Inc NMC990373 Humboldt
NH 221 5/02/2008 Hycroft Res & Dev Inc NMC990374 Humboldt
NH 222 5/02/2008 Hycroft Res & Dev Inc NMC990375 Humboldt
NH 223 5/02/2008 Hycroft Res & Dev Inc NMC990376 Humboldt
NH 224 5/02/2008 Hycroft Res & Dev Inc NMC990377 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | P

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 225 5/02/2008 Hycroft Res & Dev Inc NMC990378 Humboldt
NH 226 5/02/2008 Hycroft Res & Dev Inc NMC990379 Humboldt
NH 227 5/02/2008 Hycroft Res & Dev Inc NMC990380 Humboldt
NH 228 5/02/2008 Hycroft Res & Dev Inc NMC990381 Humboldt
NH 229 5/02/2008 Hycroft Res & Dev Inc NMC990382 Humboldt
NH 23 5/04/2008 Hycroft Res & Dev Inc NMC990176 Humboldt
NH 230 5/02/2008 Hycroft Res & Dev Inc NMC990383 Humboldt
NH 231 5/02/2008 Hycroft Res & Dev Inc NMC990384 Humboldt
NH 232 5/02/2008 Hycroft Res & Dev Inc NMC990385 Humboldt
NH 233 5/02/2008 Hycroft Res & Dev Inc NMC990386 Humboldt
NH 234 5/02/2008 Hycroft Res & Dev Inc NMC990387 Humboldt
NH 235 5/02/2008 Hycroft Res & Dev Inc NMC990388 Humboldt
NH 236 5/02/2008 Hycroft Res & Dev Inc NMC990389 Humboldt
NH 237 5/02/2008 Hycroft Res & Dev Inc NMC990390 Humboldt
NH 238 5/02/2008 Hycroft Res & Dev Inc NMC990391 Humboldt
NH 239 5/02/2008 Hycroft Res & Dev Inc NMC990392 Humboldt
NH 24 5/04/2008 Hycroft Res & Dev Inc NMC990177 Humboldt
NH 240 5/02/2008 Hycroft Res & Dev Inc NMC990393 Humboldt
NH 241 5/02/2008 Hycroft Res & Dev Inc NMC990394 Humboldt
NH 242 5/02/2008 Hycroft Res & Dev Inc NMC990395 Humboldt
NH 243 5/02/2008 Hycroft Res & Dev Inc NMC990396 Humboldt
NH 244 5/02/2008 Hycroft Res & Dev Inc NMC990397 Humboldt
NH 245 5/02/2008 Hycroft Res & Dev Inc NMC990398 Humboldt
NH 246 5/02/2008 Hycroft Res & Dev Inc NMC990399 Humboldt
NH 247 5/02/2008 Hycroft Res & Dev Inc NMC990400 Humboldt
NH 248 5/02/2008 Hycroft Res & Dev Inc NMC990401 Humboldt
NH 249 5/02/2008 Hycroft Res & Dev Inc NMC990402 Humboldt
NH 25 5/04/2008 Hycroft Res & Dev Inc NMC990178 Humboldt
NH 250 5/02/2008 Hycroft Res & Dev Inc NMC990403 Humboldt
NH 251 5/02/2008 Hycroft Res & Dev Inc NMC990404 Humboldt
NH 252 5/02/2008 Hycroft Res & Dev Inc NMC990405 Humboldt
NH 253 5/02/2008 Hycroft Res & Dev Inc NMC990406 Humboldt
NH 254 5/02/2008 Hycroft Res & Dev Inc NMC990407 Humboldt
NH 255 5/01/2008 Hycroft Res & Dev Inc NMC990408 Humboldt
NH 256 5/01/2008 Hycroft Res & Dev Inc NMC990409 Humboldt
NH 257 5/01/2008 Hycroft Res & Dev Inc NMC990410 Humboldt
NH 258 5/01/2008 Hycroft Res & Dev Inc NMC990411 Humboldt
NH 259 5/01/2008 Hycroft Res & Dev Inc NMC990412 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | Q

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 26 5/04/2008 Hycroft Res & Dev Inc NMC990179 Humboldt
NH 260 5/01/2008 Hycroft Res & Dev Inc NMC990413 Humboldt
NH 261 5/01/2008 Hycroft Res & Dev Inc NMC990414 Humboldt
NH 262 5/01/2008 Hycroft Res & Dev Inc NMC990415 Humboldt
NH 263 5/01/2008 Hycroft Res & Dev Inc NMC990416 Humboldt
NH 264 5/01/2008 Hycroft Res & Dev Inc NMC990417 Humboldt
NH 265 5/01/2008 Hycroft Res & Dev Inc NMC990418 Humboldt
NH 266 5/01/2008 Hycroft Res & Dev Inc NMC990419 Humboldt
NH 267 5/01/2008 Hycroft Res & Dev Inc NMC990420 Humboldt
NH 268 5/01/2008 Hycroft Res & Dev Inc NMC990421 Humboldt
NH 269 5/01/2008 Hycroft Res & Dev Inc NMC990422 Humboldt
NH 27 5/04/2008 Hycroft Res & Dev Inc NMC990180 Humboldt
NH 270 5/01/2008 Hycroft Res & Dev Inc NMC990423 Humboldt
NH 271 5/01/2008 Hycroft Res & Dev Inc NMC990424 Humboldt
NH 272 5/01/2008 Hycroft Res & Dev Inc NMC990425 Humboldt
NH 273 5/01/2008 Hycroft Res & Dev Inc NMC990426 Humboldt
NH 274 5/01/2008 Hycroft Res & Dev Inc NMC990427 Humboldt
NH 275 5/01/2008 Hycroft Res & Dev Inc NMC990428 Humboldt
NH 276 5/01/2008 Hycroft Res & Dev Inc NMC990429 Humboldt
NH 277 5/01/2008 Hycroft Res & Dev Inc NMC990430 Humboldt
NH 278 5/01/2008 Hycroft Res & Dev Inc NMC990431 Humboldt
NH 279 5/01/2008 Hycroft Res & Dev Inc NMC990432 Humboldt
NH 28 5/04/2008 Hycroft Res & Dev Inc NMC990181 Humboldt
NH 280 5/01/2008 Hycroft Res & Dev Inc NMC990433 Humboldt
NH 281 5/01/2008 Hycroft Res & Dev Inc NMC990434 Humboldt
NH 282 5/01/2008 Hycroft Res & Dev Inc NMC990435 Humboldt
NH 283 5/01/2008 Hycroft Res & Dev Inc NMC990436 Humboldt
NH 284 5/01/2008 Hycroft Res & Dev Inc NMC990437 Humboldt
NH 285 5/01/2008 Hycroft Res & Dev Inc NMC990438 Humboldt
NH 286 5/01/2008 Hycroft Res & Dev Inc NMC990439 Humboldt
NH 287 5/01/2008 Hycroft Res & Dev Inc NMC990440 Humboldt
NH 288 5/01/2008 Hycroft Res & Dev Inc NMC990441 Humboldt
NH 289 5/01/2008 Hycroft Res & Dev Inc NMC990442 Humboldt
NH 29 5/04/2008 Hycroft Res & Dev Inc NMC990182 Humboldt
NH 290 5/01/2008 Hycroft Res & Dev Inc NMC990443 Humboldt
NH 291 5/01/2008 Hycroft Res & Dev Inc NMC990444 Humboldt
NH 292 5/01/2008 Hycroft Res & Dev Inc NMC990445 Humboldt
NH 293 5/01/2008 Hycroft Res & Dev Inc NMC990446 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | R

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 294 5/01/2008 Hycroft Res & Dev Inc NMC990447 Humboldt
NH 295 5/01/2008 Hycroft Res & Dev Inc NMC990448 Humboldt
NH 296 5/01/2008 Hycroft Res & Dev Inc NMC990449 Humboldt
NH 297 5/01/2008 Hycroft Res & Dev Inc NMC990450 Humboldt
NH 298 5/01/2008 Hycroft Res & Dev Inc NMC990451 Humboldt
NH 299 5/01/2008 Hycroft Res & Dev Inc NMC990452 Humboldt
NH 3 5/04/2008 Hycroft Res & Dev Inc NMC990156 Humboldt
NH 30 5/04/2008 Hycroft Res & Dev Inc NMC990183 Humboldt
NH 300 5/01/2008 Hycroft Res & Dev Inc NMC990453 Humboldt
NH 301 5/01/2008 Hycroft Res & Dev Inc NMC990454 Humboldt
NH 302 5/01/2008 Hycroft Res & Dev Inc NMC990455 Humboldt
NH 303 5/01/2008 Hycroft Res & Dev Inc NMC990456 Humboldt
NH 304 5/01/2008 Hycroft Res & Dev Inc NMC990457 Humboldt
NH 305 5/01/2008 Hycroft Res & Dev Inc NMC990458 Humboldt
NH 306 5/01/2008 Hycroft Res & Dev Inc NMC990459 Humboldt
NH 307 5/01/2008 Hycroft Res & Dev Inc NMC990460 Humboldt
NH 308 5/01/2008 Hycroft Res & Dev Inc NMC990461 Humboldt
NH 309 5/01/2008 Hycroft Res & Dev Inc NMC990462 Humboldt
NH 31 5/04/2008 Hycroft Res & Dev Inc NMC990184 Humboldt
NH 310 5/01/2008 Hycroft Res & Dev Inc NMC990463 Humboldt
NH 311 5/01/2008 Hycroft Res & Dev Inc NMC990464 Humboldt
NH 312 5/01/2008 Hycroft Res & Dev Inc NMC990465 Humboldt
NH 313 5/01/2008 Hycroft Res & Dev Inc NMC990466 Humboldt
NH 314 5/01/2008 Hycroft Res & Dev Inc NMC990467 Humboldt
NH 315 5/01/2008 Hycroft Res & Dev Inc NMC990468 Humboldt
NH 316 5/01/2008 Hycroft Res & Dev Inc NMC990469 Humboldt
NH 317 5/01/2008 Hycroft Res & Dev Inc NMC990470 Humboldt
NH 318 5/01/2008 Hycroft Res & Dev Inc NMC990471 Humboldt
NH 319 5/01/2008 Hycroft Res & Dev Inc NMC990472 Humboldt
NH 32 5/04/2008 Hycroft Res & Dev Inc NMC990185 Humboldt
NH 320 5/01/2008 Hycroft Res & Dev Inc NMC990473 Humboldt
NH 321 5/01/2008 Hycroft Res & Dev Inc NMC990474 Humboldt
NH 322 5/01/2008 Hycroft Res & Dev Inc NMC990475 Humboldt
NH 323 5/01/2008 Hycroft Res & Dev Inc NMC990476 Humboldt
NH 324 5/01/2008 Hycroft Res & Dev Inc NMC990477 Humboldt
NH 325 5/01/2008 Hycroft Res & Dev Inc NMC990478 Humboldt
NH 326 5/01/2008 Hycroft Res & Dev Inc NMC990479 Humboldt
NH 327 5/01/2008 Hycroft Res & Dev Inc NMC990480 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | S

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 328 5/01/2008 Hycroft Res & Dev Inc NMC990481 Humboldt
NH 329 5/01/2008 Hycroft Res & Dev Inc NMC990482 Humboldt
NH 33 5/04/2008 Hycroft Res & Dev Inc NMC990186 Humboldt
NH 330 5/01/2008 Hycroft Res & Dev Inc NMC990483 Humboldt
NH 331 5/01/2008 Hycroft Res & Dev Inc NMC990484 Humboldt
NH 332 5/01/2008 Hycroft Res & Dev Inc NMC990485 Humboldt
NH 333 5/01/2008 Hycroft Res & Dev Inc NMC990486 Humboldt
NH 334 5/01/2008 Hycroft Res & Dev Inc NMC990487 Humboldt
NH 335 5/01/2008 Hycroft Res & Dev Inc NMC990488 Humboldt
NH 336 5/01/2008 Hycroft Res & Dev Inc NMC990489 Humboldt
NH 337 5/01/2008 Hycroft Res & Dev Inc NMC990490 Humboldt
NH 338 5/01/2008 Hycroft Res & Dev Inc NMC990491 Humboldt
NH 339 5/01/2008 Hycroft Res & Dev Inc NMC990492 Humboldt
NH 34 5/04/2008 Hycroft Res & Dev Inc NMC990187 Humboldt
NH 340 5/01/2008 Hycroft Res & Dev Inc NMC990493 Humboldt
NH 341 5/01/2008 Hycroft Res & Dev Inc NMC990494 Humboldt
NH 342 5/01/2008 Hycroft Res & Dev Inc NMC990495 Humboldt
NH 343 5/01/2008 Hycroft Res & Dev Inc NMC990496 Humboldt
NH 344 5/01/2008 Hycroft Res & Dev Inc NMC990497 Humboldt
NH 345 5/01/2008 Hycroft Res & Dev Inc NMC990498 Humboldt
NH 346 5/01/2008 Hycroft Res & Dev Inc NMC990499 Humboldt
NH 347 5/01/2008 Hycroft Res & Dev Inc NMC990500 Humboldt
NH 348 5/01/2008 Hycroft Res & Dev Inc NMC990501 Humboldt
NH 349 5/01/2008 Hycroft Res & Dev Inc NMC990502 Humboldt
NH 35 5/04/2008 Hycroft Res & Dev Inc NMC990188 Humboldt
NH 350 5/01/2008 Hycroft Res & Dev Inc NMC990503 Humboldt
NH 351 5/01/2008 Hycroft Res & Dev Inc NMC990504 Humboldt
NH 352 5/01/2008 Hycroft Res & Dev Inc NMC990505 Humboldt
NH 353 5/01/2008 Hycroft Res & Dev Inc NMC990506 Humboldt
NH 354 5/01/2008 Hycroft Res & Dev Inc NMC990507 Humboldt
NH 355 5/01/2008 Hycroft Res & Dev Inc NMC990508 Humboldt
NH 356 5/01/2008 Hycroft Res & Dev Inc NMC990509 Humboldt
NH 357 5/01/2008 Hycroft Res & Dev Inc NMC990510 Humboldt
NH 358 5/01/2008 Hycroft Res & Dev Inc NMC990511 Humboldt
NH 359 4/28/2008 Hycroft Res & Dev Inc NMC990512 Humboldt
NH 36 5/04/2008 Hycroft Res & Dev Inc NMC990189 Humboldt
NH 360 4/28/2008 Hycroft Res & Dev Inc NMC990513 Humboldt
NH 361 4/28/2008 Hycroft Res & Dev Inc NMC990514 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | T

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 362 4/28/2008 Hycroft Res & Dev Inc NMC990515 Humboldt
NH 363 4/28/2008 Hycroft Res & Dev Inc NMC990516 Humboldt
NH 364 4/28/2008 Hycroft Res & Dev Inc NMC990517 Humboldt
NH 365 4/28/2008 Hycroft Res & Dev Inc NMC990518 Humboldt
NH 366 4/28/2008 Hycroft Res & Dev Inc NMC990519 Humboldt
NH 367 4/28/2008 Hycroft Res & Dev Inc NMC990520 Humboldt
NH 368 4/28/2008 Hycroft Res & Dev Inc NMC990521 Humboldt
NH 369 4/28/2008 Hycroft Res & Dev Inc NMC990522 Humboldt
NH 37 5/04/2008 Hycroft Res & Dev Inc NMC990190 Humboldt
NH 370 4/28/2008 Hycroft Res & Dev Inc NMC990523 Humboldt
NH 371 4/28/2008 Hycroft Res & Dev Inc NMC990524 Humboldt
NH 372 4/28/2008 Hycroft Res & Dev Inc NMC990525 Humboldt
NH 373 4/28/2008 Hycroft Res & Dev Inc NMC990526 Humboldt
NH 374 4/28/2008 Hycroft Res & Dev Inc NMC990527 Humboldt
NH 375 4/28/2008 Hycroft Res & Dev Inc NMC990528 Humboldt
NH 376 4/28/2008 Hycroft Res & Dev Inc NMC990529 Humboldt
NH 377 4/28/2008 Hycroft Res & Dev Inc NMC990530 Humboldt
NH 378 4/28/2008 Hycroft Res & Dev Inc NMC990531 Humboldt
NH 379 4/28/2008 Hycroft Res & Dev Inc NMC990532 Humboldt
NH 38 5/04/2008 Hycroft Res & Dev Inc NMC990191 Humboldt
NH 380 4/28/2008 Hycroft Res & Dev Inc NMC990533 Humboldt
NH 381 4/28/2008 Hycroft Res & Dev Inc NMC990534 Humboldt
NH 382 4/28/2008 Hycroft Res & Dev Inc NMC990535 Humboldt
NH 383 4/28/2008 Hycroft Res & Dev Inc NMC990536 Humboldt
NH 384 4/28/2008 Hycroft Res & Dev Inc NMC990537 Humboldt
NH 385 4/28/2008 Hycroft Res & Dev Inc NMC990538 Humboldt
NH 386 4/28/2008 Hycroft Res & Dev Inc NMC990539 Humboldt
NH 387 4/28/2008 Hycroft Res & Dev Inc NMC990540 Humboldt
NH 388 4/28/2008 Hycroft Res & Dev Inc NMC990541 Humboldt
NH 389 4/28/2008 Hycroft Res & Dev Inc NMC990542 Humboldt
NH 39 5/04/2008 Hycroft Res & Dev Inc NMC990192 Humboldt
NH 390 4/28/2008 Hycroft Res & Dev Inc NMC990543 Humboldt
NH 391 4/28/2008 Hycroft Res & Dev Inc NMC990544 Humboldt
NH 392 4/28/2008 Hycroft Res & Dev Inc NMC990545 Humboldt
NH 393 4/28/2008 Hycroft Res & Dev Inc NMC990546 Humboldt
NH 394 4/28/2008 Hycroft Res & Dev Inc NMC990547 Humboldt
NH 395 4/28/2008 Hycroft Res & Dev Inc NMC990548 Humboldt
NH 396 4/28/2008 Hycroft Res & Dev Inc NMC990549 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | U

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 397 4/28/2008 Hycroft Res & Dev Inc NMC990550 Humboldt
NH 398 4/28/2008 Hycroft Res & Dev Inc NMC990551 Humboldt
NH 399 4/28/2008 Hycroft Res & Dev Inc NMC990552 Humboldt
NH 4 5/04/2008 Hycroft Res & Dev Inc NMC990157 Humboldt
NH 40 5/04/2008 Hycroft Res & Dev Inc NMC990193 Humboldt
NH 400 4/28/2008 Hycroft Res & Dev Inc NMC990553 Humboldt
NH 401 4/28/2008 Hycroft Res & Dev Inc NMC990554 Humboldt
NH 402 4/28/2008 Hycroft Res & Dev Inc NMC990555 Humboldt
NH 403 4/28/2008 Hycroft Res & Dev Inc NMC990556 Humboldt
NH 404 4/28/2008 Hycroft Res & Dev Inc NMC990557 Humboldt
NH 405 4/28/2008 Hycroft Res & Dev Inc NMC990558 Humboldt
NH 406 4/28/2008 Hycroft Res & Dev Inc NMC990559 Humboldt
NH 407 4/28/2008 Hycroft Res & Dev Inc NMC990560 Humboldt
NH 408 4/28/2008 Hycroft Res & Dev Inc NMC990561 Humboldt
NH 409 4/28/2008 Hycroft Res & Dev Inc NMC990562 Humboldt
NH 41 5/04/2008 Hycroft Res & Dev Inc NMC990194 Humboldt
NH 410 4/28/2008 Hycroft Res & Dev Inc NMC990563 Humboldt
NH 411 4/28/2008 Hycroft Res & Dev Inc NMC990564 Humboldt
NH 412 4/28/2008 Hycroft Res & Dev Inc NMC990565 Humboldt
NH 413 4/28/2008 Hycroft Res & Dev Inc NMC990566 Humboldt
NH 414 4/28/2008 Hycroft Res & Dev Inc NMC990567 Humboldt
NH 415 4/28/2008 Hycroft Res & Dev Inc NMC990568 Humboldt
NH 416 4/28/2008 Hycroft Res & Dev Inc NMC990569 Humboldt
NH 417 4/28/2008 Hycroft Res & Dev Inc NMC990570 Humboldt
NH 418 4/28/2008 Hycroft Res & Dev Inc NMC990571 Humboldt
NH 419 4/28/2008 Hycroft Res & Dev Inc NMC990572 Humboldt
NH 42 5/04/2008 Hycroft Res & Dev Inc NMC990195 Humboldt
NH 420 4/28/2008 Hycroft Res & Dev Inc NMC990573 Humboldt
NH 421 4/28/2008 Hycroft Res & Dev Inc NMC990574 Humboldt
NH 422 4/28/2008 Hycroft Res & Dev Inc NMC990575 Humboldt
NH 423 4/28/2008 Hycroft Res & Dev Inc NMC990576 Humboldt
NH 424 4/28/2008 Hycroft Res & Dev Inc NMC990577 Humboldt
NH 425 4/28/2008 Hycroft Res & Dev Inc NMC990578 Humboldt
NH 426 4/28/2008 Hycroft Res & Dev Inc NMC990579 Humboldt
NH 427 4/28/2008 Hycroft Res & Dev Inc NMC990580 Humboldt
NH 428 4/28/2008 Hycroft Res & Dev Inc NMC990581 Humboldt
NH 429 4/28/2008 Hycroft Res & Dev Inc NMC990582 Humboldt
NH 43 5/04/2008 Hycroft Res & Dev Inc NMC990196 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | V

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 430 4/28/2008 Hycroft Res & Dev Inc NMC990583 Humboldt
NH 431 4/28/2008 Hycroft Res & Dev Inc NMC990584 Humboldt
NH 436 4/28/2008 Hycroft Res & Dev Inc NMC990589 Humboldt
NH 44 5/04/2008 Hycroft Res & Dev Inc NMC990197 Humboldt
NH 440 4/28/2008 Hycroft Res & Dev Inc NMC990593 Humboldt
NH 441 4/28/2008 Hycroft Res & Dev Inc NMC990594 Humboldt
NH 444 4/28/2008 Hycroft Res & Dev Inc NMC990597 Humboldt
NH 445 4/28/2008 Hycroft Res & Dev Inc NMC990598 Humboldt
NH 446 4/28/2008 Hycroft Res & Dev Inc NMC990599 Humboldt
NH 447 4/28/2008 Hycroft Res & Dev Inc NMC990600 Humboldt
NH 448 4/28/2008 Hycroft Res & Dev Inc NMC990601 Humboldt
NH 449 4/28/2008 Hycroft Res & Dev Inc NMC990602 Humboldt
NH 45 5/04/2008 Hycroft Res & Dev Inc NMC990198 Humboldt
NH 451 4/28/2008 Hycroft Res & Dev Inc NMC990604 Humboldt
NH 452 4/28/2008 Hycroft Res & Dev Inc NMC990605 Humboldt
NH 453 4/28/2008 Hycroft Res & Dev Inc NMC990606 Humboldt
NH 454 4/28/2008 Hycroft Res & Dev Inc NMC990607 Humboldt
NH 455 4/28/2008 Hycroft Res & Dev Inc NMC990608 Humboldt
NH 456 4/28/2008 Hycroft Res & Dev Inc NMC990609 Humboldt
NH 457 4/28/2008 Hycroft Res & Dev Inc NMC990610 Humboldt
NH 458 4/28/2008 Hycroft Res & Dev Inc NMC990611 Humboldt
NH 459 4/28/2008 Hycroft Res & Dev Inc NMC990612 Humboldt
NH 46 5/04/2008 Hycroft Res & Dev Inc NMC990199 Humboldt
NH 460 4/28/2008 Hycroft Res & Dev Inc NMC990613 Humboldt
NH 461 4/28/2008 Hycroft Res & Dev Inc NMC990614 Humboldt
NH 462 4/28/2008 Hycroft Res & Dev Inc NMC990615 Humboldt
NH 463 4/28/2008 Hycroft Res & Dev Inc NMC990616 Humboldt
NH 464 4/28/2008 Hycroft Res & Dev Inc NMC990617 Humboldt
NH 465 4/28/2008 Hycroft Res & Dev Inc NMC990618 Humboldt
NH 466 4/28/2008 Hycroft Res & Dev Inc NMC990619 Humboldt
NH 467 4/28/2008 Hycroft Res & Dev Inc NMC990620 Humboldt
NH 468 4/28/2008 Hycroft Res & Dev Inc NMC990621 Humboldt
NH 469 4/28/2008 Hycroft Res & Dev Inc NMC990622 Humboldt
NH 47 5/03/2008 Hycroft Res & Dev Inc NMC990200 Humboldt
NH 470 4/28/2008 Hycroft Res & Dev Inc NMC990623 Humboldt
NH 471 4/28/2008 Hycroft Res & Dev Inc NMC990624 Humboldt
NH 472 4/28/2008 Hycroft Res & Dev Inc NMC990625 Humboldt
NH 473 4/28/2008 Hycroft Res & Dev Inc NMC990626 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | W
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 474 4/28/2008 Hycroft Res & Dev Inc NMC990627 Humboldt
NH 475 4/28/2008 Hycroft Res & Dev Inc NMC990628 Humboldt
NH 476 4/28/2008 Hycroft Res & Dev Inc NMC990629 Humboldt
NH 477 4/28/2008 Hycroft Res & Dev Inc NMC990630 Humboldt
NH 478 4/28/2008 Hycroft Res & Dev Inc NMC990631 Humboldt
NH 479 4/28/2008 Hycroft Res & Dev Inc NMC990632 Humboldt
NH 48 5/03/2008 Hycroft Res & Dev Inc NMC990201 Humboldt
NH 480 4/28/2008 Hycroft Res & Dev Inc NMC990633 Humboldt
NH 481 4/28/2008 Hycroft Res & Dev Inc NMC990634 Humboldt
NH 482 4/28/2008 Hycroft Res & Dev Inc NMC990635 Humboldt
NH 483 4/28/2008 Hycroft Res & Dev Inc NMC990636 Humboldt
NH 484 4/28/2008 Hycroft Res & Dev Inc NMC990637 Humboldt
NH 485 4/29/2008 Hycroft Res & Dev Inc NMC990638 Humboldt
NH 486 4/29/2008 Hycroft Res & Dev Inc NMC990639 Humboldt
NH 487 4/29/2008 Hycroft Res & Dev Inc NMC990640 Humboldt
NH 488 4/29/2008 Hycroft Res & Dev Inc NMC990641 Humboldt
NH 489 4/29/2008 Hycroft Res & Dev Inc NMC990642 Humboldt
NH 49 5/03/2008 Hycroft Res & Dev Inc NMC990202 Humboldt
NH 490 4/29/2008 Hycroft Res & Dev Inc NMC990643 Humboldt
NH 491 4/29/2008 Hycroft Res & Dev Inc NMC990644 Humboldt
NH 492 4/29/2008 Hycroft Res & Dev Inc NMC990645 Humboldt
NH 493 4/29/2008 Hycroft Res & Dev Inc NMC990646 Humboldt
NH 494 4/29/2008 Hycroft Res & Dev Inc NMC990647 Humboldt
NH 495 4/29/2008 Hycroft Res & Dev Inc NMC990648 Humboldt
NH 496 4/29/2008 Hycroft Res & Dev Inc NMC990649 Humboldt
NH 497 4/29/2008 Hycroft Res & Dev Inc NMC990650 Humboldt
NH 498 4/29/2008 Hycroft Res & Dev Inc NMC990651 Humboldt
NH 499 4/29/2008 Hycroft Res & Dev Inc NMC990652 Humboldt
NH 5 5/04/2008 Hycroft Res & Dev Inc NMC990158 Humboldt
NH 50 5/03/2008 Hycroft Res & Dev Inc NMC990203 Humboldt
NH 500 4/29/2008 Hycroft Res & Dev Inc NMC990653 Humboldt
NH 51 5/03/2008 Hycroft Res & Dev Inc NMC990204 Humboldt
NH 52 5/03/2008 Hycroft Res & Dev Inc NMC990205 Humboldt
NH 53 5/03/2008 Hycroft Res & Dev Inc NMC990206 Humboldt
NH 54 5/03/2008 Hycroft Res & Dev Inc NMC990207 Humboldt
NH 55 5/03/2008 Hycroft Res & Dev Inc NMC990208 Humboldt
NH 56 5/03/2008 Hycroft Res & Dev Inc NMC990209 Humboldt
NH 57 5/03/2008 Hycroft Res & Dev Inc NMC990210 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | X
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 58 5/03/2008 Hycroft Res & Dev Inc NMC990211 Humboldt
NH 59 5/03/2008 Hycroft Res & Dev Inc NMC990212 Humboldt
NH 6 5/04/2008 Hycroft Res & Dev Inc NMC990159 Humboldt
NH 60 5/03/2008 Hycroft Res & Dev Inc NMC990213 Humboldt
NH 61 5/03/2008 Hycroft Res & Dev Inc NMC990214 Humboldt
NH 62 5/03/2008 Hycroft Res & Dev Inc NMC990215 Humboldt
NH 63 5/03/2008 Hycroft Res & Dev Inc NMC990216 Humboldt
NH 64 5/03/2008 Hycroft Res & Dev Inc NMC990217 Humboldt
NH 65 5/03/2008 Hycroft Res & Dev Inc NMC990218 Humboldt
NH 66 5/03/2008 Hycroft Res & Dev Inc NMC990219 Humboldt
NH 67 5/03/2008 Hycroft Res & Dev Inc NMC990220 Humboldt
NH 68 5/03/2008 Hycroft Res & Dev Inc NMC990221 Humboldt
NH 69 5/03/2008 Hycroft Res & Dev Inc NMC990222 Humboldt
NH 7 5/04/2008 Hycroft Res & Dev Inc NMC990160 Humboldt
NH 70 5/03/2008 Hycroft Res & Dev Inc NMC990223 Humboldt
NH 71 5/03/2008 Hycroft Res & Dev Inc NMC990224 Humboldt
NH 72 5/03/2008 Hycroft Res & Dev Inc NMC990225 Humboldt
NH 73 5/03/2008 Hycroft Res & Dev Inc NMC990226 Humboldt
NH 74 5/03/2008 Hycroft Res & Dev Inc NMC990227 Humboldt
NH 75 5/03/2008 Hycroft Res & Dev Inc NMC990228 Humboldt
NH 76 5/03/2008 Hycroft Res & Dev Inc NMC990229 Humboldt
NH 77 5/03/2008 Hycroft Res & Dev Inc NMC990230 Humboldt
NH 78 5/03/2008 Hycroft Res & Dev Inc NMC990231 Humboldt
NH 79 5/03/2008 Hycroft Res & Dev Inc NMC990232 Humboldt
NH 8 5/04/2008 Hycroft Res & Dev Inc NMC990161 Humboldt
NH 80 5/03/2008 Hycroft Res & Dev Inc NMC990233 Humboldt
NH 81 5/03/2008 Hycroft Res & Dev Inc NMC990234 Humboldt
NH 82 5/03/2008 Hycroft Res & Dev Inc NMC990235 Humboldt
NH 83 5/03/2008 Hycroft Res & Dev Inc NMC990236 Humboldt
NH 84 5/03/2008 Hycroft Res & Dev Inc NMC990237 Humboldt
NH 85 5/03/2008 Hycroft Res & Dev Inc NMC990238 Humboldt
NH 86 5/03/2008 Hycroft Res & Dev Inc NMC990239 Humboldt
NH 87 5/03/2008 Hycroft Res & Dev Inc NMC990240 Humboldt
NH 88 5/03/2008 Hycroft Res & Dev Inc NMC990241 Humboldt
NH 89 5/03/2008 Hycroft Res & Dev Inc NMC990242 Humboldt
NH 9 5/04/2008 Hycroft Res & Dev Inc NMC990162 Humboldt
NH 90 5/03/2008 Hycroft Res & Dev Inc NMC990243 Humboldt
NH 91 5/03/2008 Hycroft Res & Dev Inc NMC990244 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | Y
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NH 92 5/03/2008 Hycroft Res & Dev Inc NMC990245 Humboldt
NH 93 5/03/2008 Hycroft Res & Dev Inc NMC990246 Humboldt
NH 94 5/03/2008 Hycroft Res & Dev Inc NMC990247 Humboldt
NH 95 5/03/2008 Hycroft Res & Dev Inc NMC990248 Humboldt
NH 96 5/03/2008 Hycroft Res & Dev Inc NMC990249 Humboldt
NH 97 5/03/2008 Hycroft Res & Dev Inc NMC990250 Humboldt
NH 98 5/03/2008 Hycroft Res & Dev Inc NMC990251 Humboldt
NH 99 5/03/2008 Hycroft Res & Dev Inc NMC990252 Humboldt
NH432 4/28/2008 Hycroft Res & Dev Inc NMC990585 Humboldt
NH433 4/28/2008 Hycroft Res & Dev Inc NMC990586 Humboldt
NH434 4/28/2008 Hycroft Res & Dev Inc NMC990587 Humboldt
NH435 4/28/2008 Hycroft Res & Dev Inc NMC990588 Humboldt
NH437 4/28/2008 Hycroft Res & Dev Inc NMC990590 Humboldt
NH438 4/28/2008 Hycroft Res & Dev Inc NMC990591 Humboldt
NH439 4/28/2008 Hycroft Res & Dev Inc NMC990592 Humboldt
NH442 4/28/2008 Hycroft Res & Dev Inc NMC990595 Humboldt
NH443 4/28/2008 Hycroft Res & Dev Inc NMC990596 Humboldt
NH450 4/28/2008 Hycroft Res & Dev Inc NMC990603 Humboldt
Pacific #2 11/04/1980 Lewis Frank W NMC181010 Humboldt
RFG # 39 6/28/1987 Lewis Frank W NMC436884 Humboldt
RFG # 72 6/28/1987 Lewis Frank W NMC436912 Humboldt
RFG #0BF 1/30/1980 Hrdi NMC143488 Humboldt
RFG #1 12/20/1979 Hrdi NMC143252 Humboldt
RFG #10 12/20/1979 Hrdi NMC143261 Humboldt
RFG #11 1/03/1980 Hrdi NMC143262 Humboldt
RFG #12 1/03/1980 Hrdi NMC143263 Humboldt
RFG #12A 2/20/1980 Hrdi NMC143490 Humboldt
RFG #13 12/27/1979 Hrdi NMC143264 Humboldt
RFG #13A 2/20/1980 Hrdi NMC143491 Humboldt
RFG #15 1/03/1980 Hrdi NMC143266 Humboldt
RFG #16 1/03/1980 Hrdi NMC143267 Humboldt
RFG #168 2/01/1980 Hrdi NMC143347 Humboldt
RFG #169 2/01/1980 Hrdi NMC143348 Humboldt
RFG #17 1/03/1980 Hrdi NMC143268 Humboldt
RFG #170 2/01/1980 Hrdi NMC143349 Humboldt
RFG #171 2/01/1980 Hrdi NMC143350 Humboldt
RFG #172 1/31/1980 Hrdi NMC143351 Humboldt
RFG #173 1/31/1980 Hrdi NMC143352 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | Z
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #174 1/31/1980 Hrdi NMC143353 Humboldt
RFG #175 1/31/1980 Hrdi NMC143354 Humboldt
RFG #176 1/31/1980 Hrdi NMC143355 Humboldt
RFG #177 1/31/1980 Hrdi NMC143356 Humboldt
RFG #178 2/01/1980 Hrdi NMC143357 Humboldt
RFG #179 2/01/1980 Hrdi NMC143358 Humboldt
RFG #18 1/03/1980 Hrdi NMC143269 Humboldt
RFG #180 2/01/1980 Hrdi NMC143359 Humboldt
RFG #181 2/01/1980 Hrdi NMC143360 Humboldt
RFG #182 2/01/1980 Hrdi NMC143361 Humboldt
RFG #183 2/01/1980 Hrdi NMC143362 Humboldt
RFG #184 2/01/1980 Hrdi NMC143363 Humboldt
RFG #185 2/01/1980 Hrdi NMC143364 Humboldt
RFG #186 1/31/1980 Hrdi NMC143365 Humboldt
RFG #187 2/01/1980 Hrdi NMC143366 Humboldt
RFG #188 1/31/1980 Hrdi NMC143367 Humboldt
RFG #189 2/01/1980 Hrdi NMC143368 Humboldt
RFG #19 1/03/1980 Hrdi NMC143270 Humboldt
RFG #190 1/31/1980 Hrdi NMC143369 Humboldt
RFG #191 2/01/1980 Hrdi NMC143370 Humboldt
RFG #192 1/31/1980 Hrdi NMC143371 Humboldt
RFG #193 2/01/1980 Hrdi NMC143372 Humboldt
RFG #194 1/31/1980 Hrdi NMC143373 Humboldt
RFG #195 2/01/1980 Hrdi NMC143374 Humboldt
RFG #196 1/31/1980 Hrdi NMC143375 Humboldt
RFG #197 2/01/1980 Hrdi NMC143376 Humboldt
RFG #198 1/31/1980 Hrdi NMC143377 Humboldt
RFG #199 2/01/1980 Hrdi NMC143378 Humboldt
RFG #1FS 1/27/1980 Hrdi NMC143489 Humboldt
RFG #2 12/20/1979 Hrdi NMC143253 Humboldt
RFG #20 1/03/1980 Hrdi NMC143271 Humboldt
RFG #200 1/31/1980 Hrdi NMC143379 Humboldt
RFG #201 2/05/1980 Hrdi NMC143380 Humboldt
RFG #201A 2/05/1980 Hrdi NMC143504 Humboldt
RFG #202 1/03/1980 Hrdi NMC143381 Humboldt
RFG #203 1/30/1980 Hrdi NMC143382 Humboldt
RFG #204 1/30/1980 Hrdi NMC143383 Humboldt
RFG #205 1/30/1980 Hrdi NMC143384 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | AA
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #206 1/30/1980 Hrdi NMC143385 Humboldt
RFG #207 1/30/1980 Hrdi NMC143386 Humboldt
RFG #208 1/30/1980 Hrdi NMC143387 Humboldt
RFG #209 1/30/1980 Hrdi NMC143388 Humboldt
RFG #21 1/03/1980 Hrdi NMC143272 Humboldt
RFG #210 1/30/1980 Hrdi NMC143389 Humboldt
RFG #211 1/30/1980 Hrdi NMC143390 Humboldt
RFG #212 1/30/1980 Hrdi NMC143391 Humboldt
RFG #213 1/30/1980 Hrdi NMC143392 Humboldt
RFG #214 1/30/1980 Hrdi NMC143393 Humboldt
RFG #215 1/30/1980 Hrdi NMC143394 Humboldt
RFG #2158 2/14/1980 Hrdi NMC143505 Humboldt
RFG #216 1/30/1980 Hrdi NMC143395 Humboldt
RFG #217 1/30/1980 Hrdi NMC143396 Humboldt
RFG #2178 2/14/1980 Hrdi NMC143506 Humboldt
RFG #218 2/13/1980 Hrdi NMC143397 Humboldt
RFG #2188 2/04/1980 Hrdi NMC143508 Humboldt
RFG #218A 2/04/1980 Hrdi NMC143507 Humboldt
RFG #219 2/13/1980 Hrdi NMC143398 Humboldt
RFG #2198 2/13/1980 Hrdi NMC143509 Humboldt
RFG #22 1/03/1980 Hrdi NMC143273 Humboldt
RFG #220 1/31/1980 Hrdi NMC143399 Humboldt
RFG #221 1/31/1980 Hrdi NMC143400 Humboldt
RFG #222 1/31/1980 Hrdi NMC143401 Humboldt
RFG #223 1/31/1980 Hrdi NMC143402 Humboldt
RFG #224 1/26/1980 Hrdi NMC143403 Humboldt
RFG #225 1/26/1980 Hrdi NMC143404 Humboldt
RFG #226 1/26/1980 Hrdi NMC143405 Humboldt
RFG #227 1/26/1980 Hrdi NMC143406 Humboldt
RFG #22A 2/20/1980 Hrdi NMC143492 Humboldt
RFG #23 1/03/1980 Hrdi NMC143274 Humboldt
RFG #238F 1/29/1980 Hrdi NMC143510 Humboldt
RFG #239 1/26/1980 Hrdi NMC143407 Humboldt
RFG #239 2/22/1980 Hrdi NMC143598 Humboldt
RFG #239A 2/22/1980 Hrdi NMC143511 Humboldt
RFG #24 12/22/1979 Hrdi NMC143275 Humboldt
RFG #240 2/22/1980 Hrdi NMC143408 Humboldt
RFG #240 2/22/1980 Hrdi NMC143597 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | BB
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #241 3/11/1980 Hrdi NMC143409 Humboldt
RFG #241A 3/11/1980 Hrdi NMC143596 Humboldt
RFG #242 3/11/1980 Hrdi NMC143410 Humboldt
RFG #243 2/01/1980 Hrdi NMC143411 Humboldt
RFG #244 2/03/1980 Hrdi NMC143412 Humboldt
RFG #245 2/03/1980 Hrdi NMC143413 Humboldt
RFG #246 2/03/1980 Hrdi NMC143414 Humboldt
RFG #247 2/03/1980 Hrdi NMC143415 Humboldt
RFG #248 2/03/1980 Hrdi NMC143416 Humboldt
RFG #25 12/22/1979 Hrdi NMC143276 Humboldt
RFG #26 1/05/1980 Hrdi NMC143277 Humboldt
RFG #262 1/11/1980 Hrdi NMC143487 Humboldt
RFG #264 1/11/1980 Hrdi NMC143417 Humboldt
RFG #265 1/11/1980 Hrdi NMC143418 Humboldt
RFG #266 1/17/1980 Hrdi NMC143419 Humboldt
RFG #267 1/17/1980 Hrdi NMC143420 Humboldt
RFG #268 1/17/1980 Hrdi NMC143421 Humboldt
RFG #269 1/17/1980 Hrdi NMC143422 Humboldt
RFG #27 1/05/1980 Hrdi NMC143278 Humboldt
RFG #270 1/17/1980 Hrdi NMC143423 Humboldt
RFG #271 1/17/1980 Hrdi NMC143424 Humboldt
RFG #28 1/05/1980 Hrdi NMC143279 Humboldt
RFG #288 3/11/1989 Crofoot Daniel M NMC546067 Humboldt
RFG #29 1/05/1980 Hrdi NMC143280 Humboldt
RFG #290 3/11/1989 Crofoot Daniel M NMC546068 Humboldt
RFG #292 3/11/1989 Crofoot Daniel M NMC546069 Humboldt
RFG #294 3/11/1989 Crofoot Daniel M NMC546070 Humboldt
RFG #296 3/11/1989 Crofoot Daniel M NMC546071 Humboldt
RFG #298 2/06/1980 Hrdi NMC143494 Humboldt
RFG #298 3/11/1989 Crofoot Daniel M NMC546072 Humboldt
RFG #29A 2/06/1980 Hrdi NMC143493 Humboldt
RFG #3 12/20/1979 Hrdi NMC143254 Humboldt
RFG #30 12/22/1979 Hrdi NMC143281 Humboldt
RFG #300 3/11/1989 Crofoot Daniel M NMC546073 Humboldt
RFG #302 3/11/1989 Crofoot Daniel M NMC546074 Humboldt
RFG #304 3/11/1989 Crofoot Daniel M NMC546075 Humboldt
RFG #305 1/18/1980 Hrdi NMC143444 Humboldt
RFG #306 1/18/1980 Hrdi NMC143445 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | CC
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #307 1/18/1980 Hrdi NMC143446 Humboldt
RFG #30A 1/05/1980 Hrdi NMC143495 Humboldt
RFG #31 12/22/1979 Hrdi NMC143282 Humboldt
RFG #32 12/22/1979 Hrdi NMC143283 Humboldt
RFG #322 3/11/1989 Crofoot Daniel M NMC546076 Humboldt
RFG #323 3/11/1989 Crofoot Daniel M NMC546077 Humboldt
RFG #324 3/11/1989 Crofoot Daniel M NMC546078 Humboldt
RFG #325 3/11/1989 Crofoot Daniel M NMC546079 Humboldt
RFG #326 3/11/1989 Crofoot Daniel M NMC546080 Humboldt
RFG #327 3/11/1989 Crofoot Daniel M NMC546081 Humboldt
RFG #328 1/11/1980 Hrdi NMC143453 Humboldt
RFG #329 3/11/1989 Crofoot Daniel M NMC546082 Humboldt
RFG #33 3/10/1989 Crofoot Daniel M NMC546005 Humboldt
RFG #330 1/11/1980 Hrdi NMC143455 Humboldt
RFG #331 3/11/1989 Crofoot Daniel M NMC546083 Humboldt
RFG #332 1/11/1980 Hrdi NMC143457 Humboldt
RFG #333 3/11/1989 Crofoot Daniel M NMC546084 Humboldt
RFG #334 1/11/1980 Hrdi NMC143459 Humboldt
RFG #335 3/11/1989 Crofoot Daniel M NMC546085 Humboldt
RFG #336 1/11/1980 Hrdi NMC143461 Humboldt
RFG #337 3/11/1989 Crofoot Daniel M NMC546086 Humboldt
RFG #338 1/22/1980 Hrdi NMC143463 Humboldt
RFG #339 3/11/1989 Crofoot Daniel M NMC546087 Humboldt
RFG #34 12/22/1979 Hrdi NMC143285 Humboldt
RFG #340 1/22/1980 Hrdi NMC143465 Humboldt
RFG #341 3/11/1989 Crofoot Daniel M NMC546088 Humboldt
RFG #342 1/22/1980 Hrdi NMC143467 Humboldt
RFG #343 3/11/1989 Crofoot Daniel M NMC546089 Humboldt
RFG #35 3/10/1989 Crofoot Daniel M NMC546006 Humboldt
RFG #358 1/31/1980 Hrdi NMC143469 Humboldt
RFG #359 1/31/1980 Hrdi NMC143470 Humboldt
RFG #36 12/22/1979 Hrdi NMC143287 Humboldt
RFG #360 1/31/1980 Hrdi NMC143471 Humboldt
RFG #361 1/31/1980 Hrdi NMC143472 Humboldt
RFG #362 1/31/1980 Homestake Mng Co Of Ca NMC143473 Humboldt
RFG #362A 2/05/1980 Hrdi NMC143512 Humboldt
RFG #363 1/31/1980 Hrdi NMC143474 Humboldt
RFG #364 1/31/1980 Homestake Mng Co Of Ca NMC143475 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | DD
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #364A 2/05/1980 Hrdi NMC143513 Humboldt
RFG #365 1/31/1980 Hrdi NMC143476 Humboldt
RFG #366 1/31/1980 Homestake Mng Co Of Ca NMC143477 Humboldt
RFG #366A 2/06/1980 Hrdi NMC143514 Humboldt
RFG #367 1/31/1980 Hrdi NMC143478 Humboldt
RFG #368 2/01/1980 Homestake Mng Co Of Ca NMC143479 Humboldt
RFG #368 2/07/1980 Hrdi NMC143497 Humboldt
RFG #368A 2/06/1980 Hrdi NMC143515 Humboldt
RFG #36A 2/07/1980 Hrdi NMC143496 Humboldt
RFG #37 3/10/1989 Crofoot Daniel M NMC546007 Humboldt
RFG #38 3/10/1989 Crofoot Daniel M NMC546008 Humboldt
RFG #39A 3/10/1989 Crofoot Daniel M NMC546009 Humboldt
RFG #4 12/20/1979 Hrdi NMC143255 Humboldt
RFG #40 1/07/1980 Hrdi NMC143291 Humboldt
RFG #400 10/25/1980 Hrdi NMC175062 Humboldt
RFG #401 10/25/1980 Hrdi NMC175063 Humboldt
RFG #402 10/25/1980 Hrdi NMC175064 Humboldt
RFG #403 10/25/1980 Hrdi NMC175065 Humboldt
RFG #404 10/17/1980 Hrdi NMC175066 Humboldt
RFG #405 10/17/1980 Hrdi NMC175067 Humboldt
RFG #406 10/17/1980 Hrdi NMC175068 Humboldt
RFG #407 10/17/1980 Hrdi NMC175069 Humboldt
RFG #408 10/17/1980 Hrdi NMC175070 Humboldt
RFG #409 10/17/1980 Hrdi NMC175071 Humboldt
RFG #41 1/07/1980 Hrdi NMC143292 Humboldt
RFG #410 10/17/1980 Hrdi NMC175072 Humboldt
RFG #411 10/17/1980 Hrdi NMC175073 Humboldt
RFG #412 10/17/1980 Hrdi NMC175074 Humboldt
RFG #413 10/17/1980 Hrdi NMC175075 Humboldt
RFG #414 10/17/1980 Hrdi NMC175076 Humboldt
RFG #415 10/17/1980 Hrdi NMC175077 Humboldt
RFG #416 10/17/1980 Hrdi NMC175078 Humboldt
RFG #417 10/17/1980 Hrdi NMC175079 Humboldt
RFG #418 10/17/1980 Hrdi NMC175080 Humboldt
RFG #419 10/17/1980 Hrdi NMC175081 Humboldt
RFG #42 3/10/1989 Crofoot Daniel M NMC546010 Humboldt
RFG #420 10/17/1980 Hrdi NMC175082 Humboldt
RFG #421 10/17/1980 Hrdi NMC175083 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | EE
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #422 10/17/1980 Hrdi NMC175084 Humboldt
RFG #423 10/17/1980 Hrdi NMC175085 Humboldt
RFG #424 10/17/1980 Hrdi NMC175086 Humboldt
RFG #425 10/17/1980 Hrdi NMC175087 Humboldt
RFG #426 10/17/1980 Hrdi NMC175088 Humboldt
RFG #43 3/10/1989 Crofoot Daniel M NMC546011 Humboldt
RFG #44 3/10/1989 Crofoot Daniel M NMC546012 Humboldt
RFG #45 3/10/1989 Crofoot Daniel M NMC546013 Humboldt
RFG #46 3/10/1989 Crofoot Daniel M NMC546014 Humboldt
RFG #47 3/10/1989 Crofoot Daniel M NMC546015 Humboldt
RFG #48 3/10/1989 Crofoot Daniel M NMC546016 Humboldt
RFG #49 3/10/1989 Crofoot Daniel M NMC546017 Humboldt
RFG #5 12/20/1979 Hrdi NMC143256 Humboldt
RFG #50 3/10/1989 Crofoot Daniel M NMC546018 Humboldt
RFG #51 3/10/1989 Crofoot Daniel M NMC546019 Humboldt
RFG #52 3/10/1989 Crofoot Daniel M NMC546020 Humboldt
RFG #52A 3/10/1989 Crofoot Daniel M NMC546021 Humboldt
RFG #53 3/10/1989 Crofoot Daniel M NMC546022 Humboldt
RFG #54 3/10/1989 Crofoot Daniel M NMC546023 Humboldt
RFG #55 1/09/1980 Hrdi NMC143306 Humboldt
RFG #56 1/09/1980 Hrdi NMC143307 Humboldt
RFG #57 3/10/1989 Crofoot Daniel M NMC546024 Humboldt
RFG #58 3/10/1989 Crofoot Daniel M NMC546025 Humboldt
RFG #59 3/10/1989 Crofoot Daniel M NMC546026 Humboldt
RFG #6 12/20/1979 Hrdi NMC143257 Humboldt
RFG #60 3/10/1989 Crofoot Daniel M NMC546027 Humboldt
RFG #61 3/10/1989 Crofoot Daniel M NMC546028 Humboldt
RFG #62 3/10/1989 Crofoot Daniel M NMC546029 Humboldt
RFG #63 3/10/1989 Crofoot Daniel M NMC546030 Humboldt
RFG #64 3/10/1989 Crofoot Daniel M NMC546031 Humboldt
RFG #65 3/10/1989 Crofoot Daniel M NMC546032 Humboldt
RFG #66 3/10/1989 Crofoot Daniel M NMC546033 Humboldt
RFG #67 3/10/1989 Crofoot Daniel M NMC546034 Humboldt
RFG #67A 3/10/1989 Crofoot Daniel M NMC546035 Humboldt
RFG #68 3/10/1989 Crofoot Daniel M NMC546036 Humboldt
RFG #68A 3/10/1989 Crofoot Daniel M NMC546037 Humboldt
RFG #69 1/10/1980 Hrdi NMC143320 Humboldt
RFG #7 12/20/1979 Hrdi NMC143258 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | FF
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #70 1/10/1980 Hrdi NMC143321 Humboldt
RFG #71 3/11/1989 Crofoot Daniel M NMC546038 Humboldt
RFG #73 3/11/1989 Crofoot Daniel M NMC546039 Humboldt
RFG #74 3/11/1989 Crofoot Daniel M NMC546040 Humboldt
RFG #75 3/11/1989 Crofoot Daniel M NMC546041 Humboldt
RFG #76 3/11/1989 Crofoot Daniel M NMC546042 Humboldt
RFG #77 3/11/1989 Crofoot Daniel M NMC546043 Humboldt
RFG #78 3/11/1989 Crofoot Daniel M NMC546044 Humboldt
RFG #79 3/11/1989 Crofoot Daniel M NMC546045 Humboldt
RFG #8 12/20/1979 Hrdi NMC143259 Humboldt
RFG #80 3/11/1989 Crofoot Daniel M NMC546046 Humboldt
RFG #81 3/11/1989 Crofoot Daniel M NMC546047 Humboldt
RFG #81A 3/11/1989 Crofoot Daniel M NMC546048 Humboldt
RFG #82 3/11/1989 Crofoot Daniel M NMC546049 Humboldt
RFG #83 3/11/1989 Crofoot Daniel M NMC546050 Humboldt
RFG #85 3/11/1989 Crofoot Daniel M NMC546052 Humboldt
RFG #86 3/11/1989 Crofoot Daniel M NMC546053 Humboldt
RFG #87 3/11/1989 Crofoot Daniel M NMC546054 Humboldt
RFG #88 3/11/1989 Crofoot Daniel M NMC546055 Humboldt
RFG #89 3/11/1989 Crofoot Daniel M NMC546056 Humboldt
RFG #9 12/20/1979 Hrdi NMC143260 Humboldt
RFG #90 3/11/1989 Crofoot Daniel M NMC546057 Humboldt
RFG #91 3/11/1989 Crofoot Daniel M NMC546058 Humboldt
RFG #92 3/11/1989 Crofoot Daniel M NMC546059 Humboldt
RFG #93 3/11/1989 Crofoot Daniel M NMC546060 Humboldt
RFG #94 3/11/1989 Crofoot Daniel M NMC546061 Humboldt
RFG #95 3/11/1989 Crofoot Daniel M NMC546062 Humboldt
RFG #97 3/11/1989 Crofoot Daniel M NMC546063 Humboldt
RFG 102 5/20/2006 Hycroft Res & Dev Inc NMC932886 Humboldt
RFG 126 5/20/2006 Hycroft Res & Dev Inc NMC932903 Humboldt
RFG 128 5/20/2006 Hycroft Res & Dev Inc NMC932904 Humboldt
RFG 258 5/20/2006 Hycroft Res & Dev Inc NMC932912 Humboldt
RFG 260 5/20/2006 Hycroft Res & Dev Inc NMC932913 Humboldt
RFG 286 5/20/2006 Hycroft Res & Dev Inc NMC932914 Humboldt
RFG 287 5/20/2006 Hycroft Res & Dev Inc NMC932915 Humboldt
RFG 289 5/20/2006 Hycroft Res & Dev Inc NMC932916 Humboldt
RFG 291 5/20/2006 Hycroft Res & Dev Inc NMC932917 Humboldt
RFG 293 5/20/2006 Hycroft Res & Dev Inc NMC932918 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | GG
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG 295 5/20/2006 Hycroft Res & Dev Inc NMC932919 Humboldt
RFG 297 5/20/2006 Hycroft Res & Dev Inc NMC932920 Humboldt
RFG 299 5/20/2006 Hycroft Res & Dev Inc NMC932921 Humboldt
RFG 301 5/20/2006 Hycroft Res & Dev Inc NMC932922 Humboldt
RFG 303 5/20/2006 Hycroft Res & Dev Inc NMC932923 Humboldt
RFG 94A 5/20/2006 Hycroft Res & Dev Inc NMC932885 Humboldt
RFG Fraction #427 10/17/1980 Hrdi NMC175089 Humboldt
RFG#14 1/03/1980 Hrdi NMC143265 Humboldt
RFG#328X 5/15/1984 Lewis Frank W NMC307553 Humboldt
RFG#84 3/11/1989 Crofoot Daniel M NMC546051 Humboldt
RFG-130-A 1/08/2008 Victory Exploration Inc. NMC985654 Humboldt
RFGM 1 6/18/2009 Hycroft Res & Dev Inc NMC1008652 Humboldt
RFGM 10 6/18/2009 Hycroft Res & Dev Inc NMC1008661 Humboldt
RFGM 10A 6/18/2009 Hycroft Res & Dev Inc NMC1008716 Humboldt
RFGM 11 6/18/2009 Hycroft Res & Dev Inc NMC1008662 Humboldt
RFGM 11A 6/18/2009 Hycroft Res & Dev Inc NMC1008717 Humboldt
RFGM 12 6/18/2009 Hycroft Res & Dev Inc NMC1008663 Humboldt
RFGM 12A 6/18/2009 Hycroft Res & Dev Inc NMC1008718 Humboldt
RFGM 12B 6/18/2009 Hycroft Res & Dev Inc NMC1008728 Humboldt
RFGM 13 6/18/2009 Hycroft Res & Dev Inc NMC1008664 Humboldt
RFGM 13A 6/18/2009 Hycroft Res & Dev Inc NMC1008719 Humboldt
RFGM 13B 6/18/2009 Hycroft Res & Dev Inc NMC1008729 Humboldt
RFGM 14 6/18/2009 Hycroft Res & Dev Inc NMC1008665 Humboldt
RFGM 14A 6/18/2009 Hycroft Res & Dev Inc NMC1008720 Humboldt
RFGM 15 6/18/2009 Hycroft Res & Dev Inc NMC1008666 Humboldt
RFGM 16 6/18/2009 Hycroft Res & Dev Inc NMC1008667 Humboldt
RFGM 17 6/18/2009 Hycroft Res & Dev Inc NMC1008668 Humboldt
RFGM 171 6/18/2009 Hycroft Res & Dev Inc NMC1008691 Humboldt
RFGM 172 6/18/2009 Hycroft Res & Dev Inc NMC1008692 Humboldt
RFGM 176 6/18/2009 Hycroft Res & Dev Inc NMC1008693 Humboldt
RFGM 177 6/18/2009 Hycroft Res & Dev Inc NMC1008694 Humboldt
RFGM 177A 6/18/2009 Hycroft Res & Dev Inc NMC1008725 Humboldt
RFGM 178 6/18/2009 Hycroft Res & Dev Inc NMC1008695 Humboldt
RFGM 179 6/18/2009 Hycroft Res & Dev Inc NMC1008696 Humboldt
RFGM 18 6/18/2009 Hycroft Res & Dev Inc NMC1008669 Humboldt
RFGM 180 6/18/2009 Hycroft Res & Dev Inc NMC1008697 Humboldt
RFGM 181 6/18/2009 Hycroft Res & Dev Inc NMC1008698 Humboldt
RFGM 182 6/18/2009 Hycroft Res & Dev Inc NMC1008699 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | HH
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFGM 183 6/18/2009 Hycroft Res & Dev Inc NMC1008700 Humboldt
RFGM 184 6/18/2009 Hycroft Res & Dev Inc NMC1008701 Humboldt
RFGM 186 6/18/2009 Hycroft Res & Dev Inc NMC1008702 Humboldt
RFGM 187 6/18/2009 Hycroft Res & Dev Inc NMC1008703 Humboldt
RFGM 18A 6/18/2009 Hycroft Res & Dev Inc NMC1008721 Humboldt
RFGM 19 6/18/2009 Hycroft Res & Dev Inc NMC1008670 Humboldt
RFGM 2 6/18/2009 Hycroft Res & Dev Inc NMC1008653 Humboldt
RFGM 20 6/18/2009 Hycroft Res & Dev Inc NMC1008671 Humboldt
RFGM 20A 6/18/2009 Hycroft Res & Dev Inc NMC1008722 Humboldt
RFGM 21 6/18/2009 Hycroft Res & Dev Inc NMC1008672 Humboldt
RFGM 22 6/18/2009 Hycroft Res & Dev Inc NMC1008673 Humboldt
RFGM 22A 6/18/2009 Hycroft Res & Dev Inc NMC1008723 Humboldt
RFGM 22B 6/18/2009 Hycroft Res & Dev Inc NMC1008730 Humboldt
RFGM 23 6/18/2009 Hycroft Res & Dev Inc NMC1008674 Humboldt
RFGM 24 6/18/2009 Hycroft Res & Dev Inc NMC1008675 Humboldt
RFGM 25 6/18/2009 Hycroft Res & Dev Inc NMC1008676 Humboldt
RFGM 26 6/18/2009 Hycroft Res & Dev Inc NMC1008677 Humboldt
RFGM 27 6/18/2009 Hycroft Res & Dev Inc NMC1008678 Humboldt
RFGM 27A 6/18/2009 Hycroft Res & Dev Inc NMC1008724 Humboldt
RFGM 28 6/18/2009 Hycroft Res & Dev Inc NMC1008679 Humboldt
RFGM 29 6/18/2009 Hycroft Res & Dev Inc NMC1008680 Humboldt
RFGM 3 6/18/2009 Hycroft Res & Dev Inc NMC1008654 Humboldt
RFGM 30 6/18/2009 Hycroft Res & Dev Inc NMC1008681 Humboldt
RFGM 31 6/18/2009 Hycroft Res & Dev Inc NMC1008682 Humboldt
RFGM 32 6/18/2009 Hycroft Res & Dev Inc NMC1008683 Humboldt
RFGM 33 6/18/2009 Hycroft Res & Dev Inc NMC1008684 Humboldt
RFGM 34 6/18/2009 Hycroft Res & Dev Inc NMC1008685 Humboldt
RFGM 357 6/18/2009 Hycroft Res & Dev Inc NMC1008704 Humboldt
RFGM 358 6/18/2009 Hycroft Res & Dev Inc NMC1008705 Humboldt
RFGM 358A 6/18/2009 Hycroft Res & Dev Inc NMC1008726 Humboldt
RFGM 359 6/18/2009 Hycroft Res & Dev Inc NMC1008706 Humboldt
RFGM 359A 6/18/2009 Hycroft Res & Dev Inc NMC1008727 Humboldt
RFGM 360 6/18/2009 Hycroft Res & Dev Inc NMC1008707 Humboldt
RFGM 361 6/18/2009 Hycroft Res & Dev Inc NMC1008708 Humboldt
RFGM 363 6/18/2009 Hycroft Res & Dev Inc NMC1008709 Humboldt
RFGM 365 6/18/2009 Hycroft Res & Dev Inc NMC1008710 Humboldt
RFGM 367 6/18/2009 Hycroft Res & Dev Inc NMC1008711 Humboldt
RFGM 4 6/18/2009 Hycroft Res & Dev Inc NMC1008655 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | II
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFGM 40 6/18/2009 Hycroft Res & Dev Inc NMC1008686 Humboldt
RFGM 41 6/18/2009 Hycroft Res & Dev Inc NMC1008687 Humboldt
RFGM 42 6/18/2009 Hycroft Res & Dev Inc NMC1008688 Humboldt
RFGM 43 6/18/2009 Hycroft Res & Dev Inc NMC1008689 Humboldt
RFGM 5 6/18/2009 Hycroft Res & Dev Inc NMC1008656 Humboldt
RFGM 57 6/18/2009 Hycroft Res & Dev Inc NMC1008690 Humboldt
RFGM 6 6/18/2009 Hycroft Res & Dev Inc NMC1008657 Humboldt
RFGM 6A 6/18/2009 Hycroft Res & Dev Inc NMC1008712 Humboldt
RFGM 7 6/18/2009 Hycroft Res & Dev Inc NMC1008658 Humboldt
RFGM 7A 6/18/2009 Hycroft Res & Dev Inc NMC1008713 Humboldt
RFGM 8 6/18/2009 Hycroft Res & Dev Inc NMC1008659 Humboldt
RFGM 8A 6/18/2009 Hycroft Res & Dev Inc NMC1008714 Humboldt
RFGM 9 6/18/2009 Hycroft Res & Dev Inc NMC1008660 Humboldt
RFGM 9A 6/18/2009 Hycroft Res & Dev Inc NMC1008715 Humboldt
SH 1 4/20/2008 Hycroft Res & Dev Inc NMC990654 Humboldt
SH 10 4/20/2008 Hycroft Res & Dev Inc NMC990663 Humboldt
SH 100 4/06/2008 Hycroft Res & Dev Inc NMC990753 Humboldt
SH 101 4/06/2008 Hycroft Res & Dev Inc NMC990754 Humboldt
SH 102 4/06/2008 Hycroft Res & Dev Inc NMC990755 Humboldt
SH 103 4/06/2008 Hycroft Res & Dev Inc NMC990756 Humboldt
SH 104 4/06/2008 Hycroft Res & Dev Inc NMC990757 Humboldt
SH 105 4/06/2008 Hycroft Res & Dev Inc NMC990758 Humboldt
SH 106 4/06/2008 Hycroft Res & Dev Inc NMC990759 Humboldt
SH 107 4/06/2008 Hycroft Res & Dev Inc NMC990760 Humboldt
SH 108 4/06/2008 Hycroft Res & Dev Inc NMC990761 Humboldt
SH 109 4/06/2008 Hycroft Res & Dev Inc NMC990762 Humboldt
SH 11 4/20/2008 Hycroft Res & Dev Inc NMC990664 Humboldt
SH 110 4/06/2008 Hycroft Res & Dev Inc NMC990763 Humboldt
SH 111 4/06/2008 Hycroft Res & Dev Inc NMC990764 Humboldt
SH 112 4/06/2008 Hycroft Res & Dev Inc NMC990765 Humboldt
SH 113 4/06/2008 Hycroft Res & Dev Inc NMC990766 Humboldt
SH 114 4/06/2008 Hycroft Res & Dev Inc NMC990767 Humboldt
SH 115 4/06/2008 Hycroft Res & Dev Inc NMC990768 Humboldt
SH 116 4/05/2008 Hycroft Res & Dev Inc NMC990769 Humboldt
SH 117 4/05/2008 Hycroft Res & Dev Inc NMC990770 Humboldt
SH 118 4/05/2008 Hycroft Res & Dev Inc NMC990771 Humboldt
SH 119 4/05/2008 Hycroft Res & Dev Inc NMC990772 Humboldt
SH 12 4/20/2008 Hycroft Res & Dev Inc NMC990665 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | JJ
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 120 4/05/2008 Hycroft Res & Dev Inc NMC990773 Humboldt
SH 121 4/05/2008 Hycroft Res & Dev Inc NMC990774 Humboldt
SH 122 4/05/2008 Hycroft Res & Dev Inc NMC990775 Humboldt
SH 123 4/05/2008 Hycroft Res & Dev Inc NMC990776 Humboldt
SH 124 4/05/2008 Hycroft Res & Dev Inc NMC990777 Humboldt
SH 125 4/05/2008 Hycroft Res & Dev Inc NMC990778 Humboldt
SH 126 4/05/2008 Hycroft Res & Dev Inc NMC990779 Humboldt
SH 127 4/05/2008 Hycroft Res & Dev Inc NMC990780 Humboldt
SH 128 4/05/2008 Hycroft Res & Dev Inc NMC990781 Humboldt
SH 129 4/05/2008 Hycroft Res & Dev Inc NMC990782 Humboldt
SH 13 4/20/2008 Hycroft Res & Dev Inc NMC990666 Humboldt
SH 130 4/06/2008 Hycroft Res & Dev Inc NMC990783 Humboldt
SH 131 4/06/2008 Hycroft Res & Dev Inc NMC990784 Humboldt
SH 132 4/06/2008 Hycroft Res & Dev Inc NMC990785 Humboldt
SH 133 4/06/2008 Hycroft Res & Dev Inc NMC990786 Humboldt
SH 134 4/06/2008 Hycroft Res & Dev Inc NMC990787 Humboldt
SH 135 4/06/2008 Hycroft Res & Dev Inc NMC990788 Humboldt
SH 136 4/06/2008 Hycroft Res & Dev Inc NMC990789 Humboldt
SH 137 4/06/2008 Hycroft Res & Dev Inc NMC990790 Humboldt
SH 138 4/06/2008 Hycroft Res & Dev Inc NMC990791 Humboldt
SH 139 4/06/2008 Hycroft Res & Dev Inc NMC990792 Humboldt
SH 14 4/20/2008 Hycroft Res & Dev Inc NMC990667 Humboldt
SH 140 4/06/2008 Hycroft Res & Dev Inc NMC990793 Humboldt
SH 141 4/06/2008 Hycroft Res & Dev Inc NMC990794 Humboldt
SH 142 4/06/2008 Hycroft Res & Dev Inc NMC990795 Humboldt
SH 143 4/06/2008 Hycroft Res & Dev Inc NMC990796 Humboldt
SH 144 4/06/2008 Hycroft Res & Dev Inc NMC990797 Humboldt
SH 145 4/06/2008 Hycroft Res & Dev Inc NMC990798 Humboldt
SH 146 4/06/2008 Hycroft Res & Dev Inc NMC990799 Humboldt
SH 147 4/06/2008 Hycroft Res & Dev Inc NMC990800 Humboldt
SH 148 4/06/2008 Hycroft Res & Dev Inc NMC990801 Humboldt
SH 149 4/06/2008 Hycroft Res & Dev Inc NMC990802 Humboldt
SH 15 4/20/2008 Hycroft Res & Dev Inc NMC990668 Humboldt
SH 150 4/06/2008 Hycroft Res & Dev Inc NMC990803 Humboldt
SH 151 4/06/2008 Hycroft Res & Dev Inc NMC990804 Humboldt
SH 152 4/06/2008 Hycroft Res & Dev Inc NMC990805 Humboldt
SH 153 4/06/2008 Hycroft Res & Dev Inc NMC990806 Humboldt
SH 154 4/06/2008 Hycroft Res & Dev Inc NMC990807 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | KK
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 155 4/05/2008 Hycroft Res & Dev Inc NMC990808 Humboldt
SH 156 4/05/2008 Hycroft Res & Dev Inc NMC990809 Humboldt
SH 157 4/05/2008 Hycroft Res & Dev Inc NMC990810 Humboldt
SH 158 4/05/2008 Hycroft Res & Dev Inc NMC990811 Humboldt
SH 159 4/05/2008 Hycroft Res & Dev Inc NMC990812 Humboldt
SH 16 4/20/2008 Hycroft Res & Dev Inc NMC990669 Humboldt
SH 160 4/05/2008 Hycroft Res & Dev Inc NMC990813 Humboldt
SH 161 4/05/2008 Hycroft Res & Dev Inc NMC990814 Humboldt
SH 162 4/05/2008 Hycroft Res & Dev Inc NMC990815 Humboldt
SH 163 4/05/2008 Hycroft Res & Dev Inc NMC990816 Humboldt
SH 164 4/05/2008 Hycroft Res & Dev Inc NMC990817 Humboldt
SH 165 4/05/2008 Hycroft Res & Dev Inc NMC990818 Humboldt
SH 166 4/05/2008 Hycroft Res & Dev Inc NMC990819 Humboldt
SH 167 4/05/2008 Hycroft Res & Dev Inc NMC990820 Humboldt
SH 168 4/05/2008 Hycroft Res & Dev Inc NMC990821 Humboldt
SH 17 4/20/2008 Hycroft Res & Dev Inc NMC990670 Humboldt
SH 18 4/20/2008 Hycroft Res & Dev Inc NMC990671 Humboldt
SH 19 4/20/2008 Hycroft Res & Dev Inc NMC990672 Humboldt
SH 2 4/20/2008 Hycroft Res & Dev Inc NMC990655 Humboldt
SH 20 4/20/2008 Hycroft Res & Dev Inc NMC990673 Humboldt
SH 21 4/20/2008 Hycroft Res & Dev Inc NMC990674 Humboldt
SH 22 4/20/2008 Hycroft Res & Dev Inc NMC990675 Humboldt
SH 23 4/20/2008 Hycroft Res & Dev Inc NMC990676 Humboldt
SH 24 4/20/2008 Hycroft Res & Dev Inc NMC990677 Humboldt
SH 25 4/20/2008 Hycroft Res & Dev Inc NMC990678 Humboldt
SH 26 4/20/2008 Hycroft Res & Dev Inc NMC990679 Humboldt
SH 27 4/20/2008 Hycroft Res & Dev Inc NMC990680 Humboldt
SH 28 4/20/2008 Hycroft Res & Dev Inc NMC990681 Humboldt
SH 29 4/20/2008 Hycroft Res & Dev Inc NMC990682 Humboldt
SH 3 4/20/2008 Hycroft Res & Dev Inc NMC990656 Humboldt
SH 30 4/20/2008 Hycroft Res & Dev Inc NMC990683 Humboldt
SH 31 4/20/2008 Hycroft Res & Dev Inc NMC990684 Humboldt
SH 32 4/06/2008 Hycroft Res & Dev Inc NMC990685 Humboldt
SH 33 4/06/2008 Hycroft Res & Dev Inc NMC990686 Humboldt
SH 34 4/06/2008 Hycroft Res & Dev Inc NMC990687 Humboldt
SH 35 4/06/2008 Hycroft Res & Dev Inc NMC990688 Humboldt
SH 350 4/21/2008 Hycroft Res & Dev Inc NMC991002 Humboldt
SH 351 4/21/2008 Hycroft Res & Dev Inc NMC991003 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | LL
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 352 4/21/2008 Hycroft Res & Dev Inc NMC991004 Humboldt
SH 36 4/06/2008 Hycroft Res & Dev Inc NMC990689 Humboldt
SH 37 4/06/2008 Hycroft Res & Dev Inc NMC990690 Humboldt
SH 373 4/21/2008 Hycroft Res & Dev Inc NMC991025 Humboldt
SH 374 4/21/2008 Hycroft Res & Dev Inc NMC991026 Humboldt
SH 375 4/21/2008 Hycroft Res & Dev Inc NMC991027 Humboldt
SH 376 4/21/2008 Hycroft Res & Dev Inc NMC991028 Humboldt
SH 377 4/21/2008 Hycroft Res & Dev Inc NMC991029 Humboldt
SH 378 4/21/2008 Hycroft Res & Dev Inc NMC991030 Humboldt
SH 379 4/21/2008 Hycroft Res & Dev Inc NMC991031 Humboldt
SH 38 4/06/2008 Hycroft Res & Dev Inc NMC990691 Humboldt
SH 380 4/21/2008 Hycroft Res & Dev Inc NMC991032 Humboldt
SH 381 4/21/2008 Hycroft Res & Dev Inc NMC991033 Humboldt
SH 39 4/06/2008 Hycroft Res & Dev Inc NMC990692 Humboldt
SH 396 4/21/2008 Hycroft Res & Dev Inc NMC991048 Humboldt
SH 397 4/21/2008 Hycroft Res & Dev Inc NMC991049 Humboldt
SH 398 4/21/2008 Hycroft Res & Dev Inc NMC991050 Humboldt
SH 399 4/21/2008 Hycroft Res & Dev Inc NMC991051 Humboldt
SH 400 4/21/2008 Hycroft Res & Dev Inc NMC991052 Humboldt
SH 401 4/21/2008 Hycroft Res & Dev Inc NMC991053 Humboldt
SH 402 4/21/2008 Hycroft Res & Dev Inc NMC991054 Humboldt
SH 403 4/21/2008 Hycroft Res & Dev Inc NMC991055 Humboldt
SH 404 4/21/2008 Hycroft Res & Dev Inc NMC991056 Humboldt
SH 405 4/21/2008 Hycroft Res & Dev Inc NMC991057 Humboldt
SH 406 4/21/2008 Hycroft Res & Dev Inc NMC991058 Humboldt
SH 41 4/06/2008 Hycroft Res & Dev Inc NMC990694 Humboldt
SH 419 4/21/2008 Hycroft Res & Dev Inc NMC991071 Humboldt
SH 42 4/06/2008 Hycroft Res & Dev Inc NMC990695 Humboldt
SH 420 4/21/2008 Hycroft Res & Dev Inc NMC991072 Humboldt
SH 421 4/21/2008 Hycroft Res & Dev Inc NMC991073 Humboldt
SH 422 4/21/2008 Hycroft Res & Dev Inc NMC991074 Humboldt
SH 423 4/21/2008 Hycroft Res & Dev Inc NMC991075 Humboldt
SH 424 4/21/2008 Hycroft Res & Dev Inc NMC991076 Humboldt
SH 425 4/21/2008 Hycroft Res & Dev Inc NMC991077 Humboldt
SH 426 4/21/2008 Hycroft Res & Dev Inc NMC991078 Humboldt
SH 427 4/21/2008 Hycroft Res & Dev Inc NMC991079 Humboldt
SH 428 4/21/2008 Hycroft Res & Dev Inc NMC991080 Humboldt
SH 429 4/21/2008 Hycroft Res & Dev Inc NMC991081 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | MM
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 43 4/06/2008 Hycroft Res & Dev Inc NMC990696 Humboldt
SH 430 4/21/2008 Hycroft Res & Dev Inc NMC991082 Humboldt
SH 439 4/21/2008 Hycroft Res & Dev Inc NMC991090 Humboldt
SH 44 4/06/2008 Hycroft Res & Dev Inc NMC990697 Humboldt
SH 440 4/21/2008 Hycroft Res & Dev Inc NMC991091 Humboldt
SH 441 4/21/2008 Hycroft Res & Dev Inc NMC991092 Humboldt
SH 442 4/21/2008 Hycroft Res & Dev Inc NMC991093 Humboldt
SH 443 4/21/2008 Hycroft Res & Dev Inc NMC991094 Humboldt
SH 444 4/21/2008 Hycroft Res & Dev Inc NMC991095 Humboldt
SH 445 4/21/2008 Hycroft Res & Dev Inc NMC991096 Humboldt
SH 446 4/21/2008 Hycroft Res & Dev Inc NMC991097 Humboldt
SH 447 4/21/2008 Hycroft Res & Dev Inc NMC991098 Humboldt
SH 448 4/21/2008 Hycroft Res & Dev Inc NMC991099 Humboldt
SH 449 4/21/2008 Hycroft Res & Dev Inc NMC991100 Humboldt
SH 45 4/06/2008 Hycroft Res & Dev Inc NMC990698 Humboldt
SH 450 4/21/2008 Hycroft Res & Dev Inc NMC991101 Humboldt
SH 451 4/21/2008 Hycroft Res & Dev Inc NMC991102 Humboldt
SH 452 4/21/2008 Hycroft Res & Dev Inc NMC991103 Humboldt
SH 453 4/21/2008 Hycroft Res & Dev Inc NMC991104 Humboldt
SH 454 4/21/2008 Hycroft Res & Dev Inc NMC991105 Humboldt
SH 455 4/21/2008 Hycroft Res & Dev Inc NMC991106 Humboldt
SH 456 4/21/2008 Hycroft Res & Dev Inc NMC991107 Humboldt
SH 46 4/06/2008 Hycroft Res & Dev Inc NMC990699 Humboldt
SH 47 4/06/2008 Hycroft Res & Dev Inc NMC990700 Humboldt
SH 48 4/06/2008 Hycroft Res & Dev Inc NMC990701 Humboldt
SH 49 4/06/2008 Hycroft Res & Dev Inc NMC990702 Humboldt
SH 5 4/20/2008 Hycroft Res & Dev Inc NMC990658 Humboldt
SH 50 4/06/2008 Hycroft Res & Dev Inc NMC990703 Humboldt
SH 51 4/06/2008 Hycroft Res & Dev Inc NMC990704 Humboldt
SH 52 4/06/2008 Hycroft Res & Dev Inc NMC990705 Humboldt
SH 53 4/06/2008 Hycroft Res & Dev Inc NMC990706 Humboldt
SH 54 4/06/2008 Hycroft Res & Dev Inc NMC990707 Humboldt
SH 55 4/06/2008 Hycroft Res & Dev Inc NMC990708 Humboldt
SH 56 4/06/2008 Hycroft Res & Dev Inc NMC990709 Humboldt
SH 57 4/06/2008 Hycroft Res & Dev Inc NMC990710 Humboldt
SH 58 4/06/2008 Hycroft Res & Dev Inc NMC990711 Humboldt
SH 59 4/06/2008 Hycroft Res & Dev Inc NMC990712 Humboldt
SH 6 4/20/2008 Hycroft Res & Dev Inc NMC990659 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | NN
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 60 4/06/2008 Hycroft Res & Dev Inc NMC990713 Humboldt
SH 61 4/06/2008 Hycroft Res & Dev Inc NMC990714 Humboldt
SH 62 4/06/2008 Hycroft Res & Dev Inc NMC990715 Humboldt
SH 63 4/06/2008 Hycroft Res & Dev Inc NMC990716 Humboldt
SH 64 4/06/2008 Hycroft Res & Dev Inc NMC990717 Humboldt
SH 65 4/06/2008 Hycroft Res & Dev Inc NMC990718 Humboldt
SH 66 4/06/2008 Hycroft Res & Dev Inc NMC990719 Humboldt
SH 67 4/06/2008 Hycroft Res & Dev Inc NMC990720 Humboldt
SH 68 4/06/2008 Hycroft Res & Dev Inc NMC990721 Humboldt
SH 69 4/06/2008 Hycroft Res & Dev Inc NMC990722 Humboldt
SH 7 4/20/2008 Hycroft Res & Dev Inc NMC990660 Humboldt
SH 70 4/06/2008 Hycroft Res & Dev Inc NMC990723 Humboldt
SH 71 4/06/2008 Hycroft Res & Dev Inc NMC990724 Humboldt
SH 72 4/06/2008 Hycroft Res & Dev Inc NMC990725 Humboldt
SH 73 4/06/2008 Hycroft Res & Dev Inc NMC990726 Humboldt
SH 74 4/06/2008 Hycroft Res & Dev Inc NMC990727 Humboldt
SH 75 4/06/2008 Hycroft Res & Dev Inc NMC990728 Humboldt
SH 76 4/06/2008 Hycroft Res & Dev Inc NMC990729 Humboldt
SH 77 4/06/2008 Hycroft Res & Dev Inc NMC990730 Humboldt
SH 78 4/06/2008 Hycroft Res & Dev Inc NMC990731 Humboldt
SH 79 4/06/2008 Hycroft Res & Dev Inc NMC990732 Humboldt
SH 8 4/20/2008 Hycroft Res & Dev Inc NMC990661 Humboldt
SH 80 4/06/2008 Hycroft Res & Dev Inc NMC990733 Humboldt
SH 81 4/06/2008 Hycroft Res & Dev Inc NMC990734 Humboldt
SH 82 4/05/2008 Hycroft Res & Dev Inc NMC990735 Humboldt
SH 83 4/05/2008 Hycroft Res & Dev Inc NMC990736 Humboldt
SH 84 4/05/2008 Hycroft Res & Dev Inc NMC990737 Humboldt
SH 85 4/05/2008 Hycroft Res & Dev Inc NMC990738 Humboldt
SH 86 4/05/2008 Hycroft Res & Dev Inc NMC990739 Humboldt
SH 87 4/05/2008 Hycroft Res & Dev Inc NMC990740 Humboldt
SH 88 4/05/2008 Hycroft Res & Dev Inc NMC990741 Humboldt
SH 89 4/05/2008 Hycroft Res & Dev Inc NMC990742 Humboldt
SH 9 4/20/2008 Hycroft Res & Dev Inc NMC990662 Humboldt
SH 90 4/05/2008 Hycroft Res & Dev Inc NMC990743 Humboldt
SH 91 4/06/2008 Hycroft Res & Dev Inc NMC990744 Humboldt
SH 92 4/06/2008 Hycroft Res & Dev Inc NMC990745 Humboldt
SH 93 4/06/2008 Hycroft Res & Dev Inc NMC990746 Humboldt
SH 94 4/06/2008 Hycroft Res & Dev Inc NMC990747 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | OO
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 95 4/06/2008 Hycroft Res & Dev Inc NMC990748 Humboldt
SH 96 4/06/2008 Hycroft Res & Dev Inc NMC990749 Humboldt
SH 97 4/06/2008 Hycroft Res & Dev Inc NMC990750 Humboldt
SH 98 4/06/2008 Hycroft Res & Dev Inc NMC990751 Humboldt
SH 99 4/06/2008 Hycroft Res & Dev Inc NMC990752 Humboldt
SH4 4/20/2008 Hycroft Res & Dev Inc NMC990657 Humboldt
SH40 4/06/2008 Hycroft Res & Dev Inc NMC990693 Humboldt
SL 1 10/18/2012 Hycroft Res & Dev Inc NMC1080086 Humboldt
SL 2 10/18/2012 Hycroft Res & Dev Inc NMC1080087 Humboldt
SL 3 10/18/2012 Hycroft Res & Dev Inc NMC1080088 Humboldt
SL 4 10/18/2012 Hycroft Res & Dev Inc NMC1080089 Humboldt
SL 5 10/18/2012 Hycroft Res & Dev Inc NMC1080090 Humboldt
SL 6 10/18/2012 Hycroft Res & Dev Inc NMC1080091 Humboldt
Sulphate 11/04/1980 Lewis Frank W NMC181011 Humboldt
Triple L #1 10/13/1979 Lewis Frank W NMC127534 Humboldt
Triple L #2 10/13/1979 Lewis Frank W NMC127535 Humboldt
Triple L #3 10/13/1979 Lewis Frank W NMC127536 Humboldt
Triple L #4 10/13/1979 Lewis Frank W NMC127537 Humboldt
Triple L #5 10/13/1979 Lewis Frank W NMC127538 Humboldt
WKM-1 9/30/1997 F W Lewis Inc NMC780688 Humboldt
WKM-10 9/30/1997 F W Lewis Inc NMC780697 Humboldt
WKM-11 9/30/1997 F W Lewis Inc NMC780698 Humboldt
WKM-12 9/30/1997 F W Lewis Inc NMC780699 Humboldt
WKM-13 9/30/1997 F W Lewis Inc NMC780700 Humboldt
WKM-14 9/30/1997 F W Lewis Inc NMC780701 Humboldt
WKM-15 9/30/1997 F W Lewis Inc NMC780702 Humboldt
WKM-16 9/30/1997 F W Lewis Inc NMC780703 Humboldt
WKM-17 9/30/1997 F W Lewis Inc NMC780704 Humboldt
WKM-18 9/30/1997 F W Lewis Inc NMC780705 Humboldt
WKM-19 10/01/1997 F W Lewis Inc NMC780706 Humboldt
WKM-2 9/30/1997 F W Lewis Inc NMC780689 Humboldt
WKM-20 10/01/1997 F W Lewis Inc NMC780707 Humboldt
WKM-21 10/01/1997 F W Lewis Inc NMC780708 Humboldt
WKM-22 10/01/1997 F W Lewis Inc NMC780709 Humboldt
WKM-23 10/01/1997 F W Lewis Inc NMC780710 Humboldt
WKM-24 10/01/1997 F W Lewis Inc NMC780711 Humboldt
WKM-25 10/01/1997 F W Lewis Inc NMC780712 Humboldt
WKM-26 10/01/1997 F W Lewis Inc NMC780713 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | PP
 

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
WKM-27 10/01/1997 F W Lewis Inc NMC780714 Humboldt
WKM-28 10/01/1997 F W Lewis Inc NMC780715 Humboldt
WKM-29 10/01/1997 F W Lewis Inc NMC780716 Humboldt
WKM-3 9/30/1997 F W Lewis Inc NMC780690 Humboldt
WKM-30 10/01/1997 F W Lewis Inc NMC780717 Humboldt
WKM-31 10/01/1997 F W Lewis Inc NMC780718 Humboldt
WKM-32 10/01/1997 F W Lewis Inc NMC780719 Humboldt
WKM-33 10/01/1997 F W Lewis Inc NMC780720 Humboldt
WKM-34 10/01/1997 F W Lewis Inc NMC780721 Humboldt
WKM-35 10/01/1997 F W Lewis Inc NMC780722 Humboldt
WKM-36 10/01/1997 F W Lewis Inc NMC780723 Humboldt
WKM-37 10/01/1997 F W Lewis Inc NMC780724 Humboldt
WKM-38 10/01/1997 F W Lewis Inc NMC780725 Humboldt
WKM-39 10/01/1997 F W Lewis Inc NMC780726 Humboldt
WKM-4 9/30/1997 F W Lewis Inc NMC780691 Humboldt
WKM-40 10/01/1997 F W Lewis Inc NMC780727 Humboldt
WKM-41 10/01/1997 F W Lewis Inc NMC780728 Humboldt
WKM-42 10/01/1997 F W Lewis Inc NMC780729 Humboldt
WKM-43 10/01/1997 F W Lewis Inc NMC780730 Humboldt
WKM-44 10/01/1997 F W Lewis Inc NMC780731 Humboldt
WKM-45 10/01/1997 F W Lewis Inc NMC780732 Humboldt
WKM-46 10/01/1997 F W Lewis Inc NMC780733 Humboldt
WKM-47 10/01/1997 F W Lewis Inc NMC780734 Humboldt
WKM-48 10/01/1997 F W Lewis Inc NMC780735 Humboldt
WKM-5 9/30/1997 F W Lewis Inc NMC780692 Humboldt
WKM-50 10/01/1997 F W Lewis Inc NMC780736 Humboldt
WKM-51 10/02/1997 F W Lewis Inc NMC780737 Humboldt
WKM-52 10/02/1997 F W Lewis Inc NMC780738 Humboldt
WKM-53 10/02/1997 F W Lewis Inc NMC780739 Humboldt
WKM-54 10/02/1997 F W Lewis Inc NMC780740 Humboldt
WKM-55 10/02/1997 F W Lewis Inc NMC780741 Humboldt
WKM-56 10/02/1997 F W Lewis Inc NMC780742 Humboldt
WKM-57 10/02/1997 F W Lewis Inc NMC780743 Humboldt
WKM-58 10/02/1997 F W Lewis Inc NMC780744 Humboldt
WKM-6 9/30/1997 F W Lewis Inc NMC780693 Humboldt
WKM-60 10/06/1997 F W Lewis Inc NMC780745 Humboldt
WKM-62 10/06/1997 F W Lewis Inc NMC780746 Humboldt
WKM-64 10/06/1997 F W Lewis Inc NMC780747 Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | QQ

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
WKM-7 9/30/1997 F W Lewis Inc NMC780694 Humboldt
WKM-8 9/30/1997 F W Lewis Inc NMC780695 Humboldt
WKM-9 9/30/1997 F W Lewis Inc NMC780696 Humboldt
FG 49 12/18/2013 Hycroft Res & Dev Inc NMC1100166 Pershing
FG 71 12/18/2013 Hycroft Res & Dev Inc NMC1100167 Pershing
HRD1212 4/16/2014 Hycroft Res & Dev Inc NMC1102169 Pershing
HRDI 218 4/16/2014 Hycroft Res & Dev Inc NMC1102176 Pershing
HRDI 219 4/16/2014 Hycroft Res & Dev Inc NMC1102177 Pershing
HRDI 1 12/16/2013 Hycroft Res & Dev Inc NMC1100176 Pershing
HRDI 10 12/16/2013 Hycroft Res & Dev Inc NMC1100185 Pershing
HRDI 100 4/8/2014 Hycroft Res & Dev Inc NMC1102058 Pershing
HRDI 101 4/8/2014 Hycroft Res & Dev Inc NMC1102059 Pershing
HRDI 102 4/8/2014 Hycroft Res & Dev Inc NMC1102060 Pershing
HRDI 103 4/8/2014 Hycroft Res & Dev Inc NMC1102061 Pershing
HRDI 104 4/8/2014 Hycroft Res & Dev Inc NMC1102062 Pershing
HRDI 105 4/8/2014 Hycroft Res & Dev Inc NMC1102063 Pershing
HRDI 106 4/8/2014 Hycroft Res & Dev Inc NMC1102064 Pershing
HRDI 107 4/8/2014 Hycroft Res & Dev Inc NMC1102065 Pershing
HRDI 108 4/8/2014 Hycroft Res & Dev Inc NMC1102066 Pershing
HRDI 109 4/8/2014 Hycroft Res & Dev Inc NMC1102067 Pershing
HRDI 11 12/16/2013 Hycroft Res & Dev Inc NMC1100186 Pershing
HRDI 110 4/8/2014 Hycroft Res & Dev Inc NMC1102068 Pershing
HRDI 111 4/9/2014 Hycroft Res & Dev Inc NMC1102069 Pershing
HRDI 112 4/9/2014 Hycroft Res & Dev Inc NMC1102070 Pershing
HRDI 113 4/9/2014 Hycroft Res & Dev Inc NMC1102071 Pershing
HRDI 114 4/9/2014 Hycroft Res & Dev Inc NMC1102072 Pershing
HRDI 115 4/9/2014 Hycroft Res & Dev Inc NMC1102073 Pershing
HRDI 116 4/9/2014 Hycroft Res & Dev Inc NMC1102074 Pershing
HRDI 117 4/9/2014 Hycroft Res & Dev Inc NMC1102075 Pershing
HRDI 118 4/9/2014 Hycroft Res & Dev Inc NMC1102076 Pershing
HRDI 119 4/9/2014 Hycroft Res & Dev Inc NMC1102077 Pershing
HRDI 12 12/16/2013 Hycroft Res & Dev Inc NMC1100187 Pershing
HRDI 120 4/9/2014 Hycroft Res & Dev Inc NMC1102078 Pershing
HRDI 121 4/9/2014 Hycroft Res & Dev Inc NMC1102079 Pershing
HRDI 122 4/9/2014 Hycroft Res & Dev Inc NMC1102080 Pershing
HRDI 123 4/9/2014 Hycroft Res & Dev Inc NMC1102081 Pershing
HRDI 124 4/9/2014 Hycroft Res & Dev Inc NMC1102082 Pershing
HRDI 125 4/9/2014 Hycroft Res & Dev Inc NMC1102083 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | RR

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
HRDI 126 4/9/2014 Hycroft Res & Dev Inc NMC1102084 Pershing
HRDI 127 4/9/2014 Hycroft Res & Dev Inc NMC1102085 Pershing
HRDI 128 4/9/2014 Hycroft Res & Dev Inc NMC1102086 Pershing
HRDI 129 4/9/2014 Hycroft Res & Dev Inc NMC1102087 Pershing
HRDI 13 12/16/2013 Hycroft Res & Dev Inc NMC1100188 Pershing
HRDI 130 4/9/2014 Hycroft Res & Dev Inc NMC1102088 Pershing
HRDI 131 4/9/2014 Hycroft Res & Dev Inc NMC1102089 Pershing
HRDI 132 4/9/2014 Hycroft Res & Dev Inc NMC1102090 Pershing
HRDI 133 4/9/2014 Hycroft Res & Dev Inc NMC1102091 Pershing
HRDI 134 4/9/2014 Hycroft Res & Dev Inc NMC1102092 Pershing
HRDI 135 4/9/2014 Hycroft Res & Dev Inc NMC1102093 Pershing
HRDI 136 4/9/2014 Hycroft Res & Dev Inc NMC1102094 Pershing
HRDI 137 4/9/2014 Hycroft Res & Dev Inc NMC1102095 Pershing
HRDI 138 4/9/2014 Hycroft Res & Dev Inc NMC1102096 Pershing
HRDI 139 4/9/2014 Hycroft Res & Dev Inc NMC1102097 Pershing
HRDI 14 12/16/2013 Hycroft Res & Dev Inc NMC1100189 Pershing
HRDI 140 4/9/2014 Hycroft Res & Dev Inc NMC1102098 Pershing
HRDI 141 4/9/2014 Hycroft Res & Dev Inc NMC1102099 Pershing
HRDI 142 4/9/2014 Hycroft Res & Dev Inc NMC1102100 Pershing
HRDI 143 4/9/2014 Hycroft Res & Dev Inc NMC1102101 Pershing
HRDI 144 4/10/2014 Hycroft Res & Dev Inc NMC1102102 Pershing
HRDI 145 4/10/2014 Hycroft Res & Dev Inc NMC1102103 Pershing
HRDI 146 4/10/2014 Hycroft Res & Dev Inc NMC1102104 Pershing
HRDI 147 4/10/2014 Hycroft Res & Dev Inc NMC1102105 Pershing
HRDI 148 4/10/2014 Hycroft Res & Dev Inc NMC1102106 Pershing
HRDI 149 4/10/2014 Hycroft Res & Dev Inc NMC1102107 Pershing
HRDI 15 12/16/2013 Hycroft Res & Dev Inc NMC1100190 Pershing
HRDI 150 4/10/2014 Hycroft Res & Dev Inc NMC1102108 Pershing
HRDI 151 4/10/2014 Hycroft Res & Dev Inc NMC1102109 Pershing
HRDI 152 4/10/2014 Hycroft Res & Dev Inc NMC1102110 Pershing
HRDI 153 4/10/2014 Hycroft Res & Dev Inc NMC1102111 Pershing
HRDI 154 4/9/2014 Hycroft Res & Dev Inc NMC1102112 Pershing
HRDI 155 4/9/2014 Hycroft Res & Dev Inc NMC1102113 Pershing
HRDI 156 4/9/2014 Hycroft Res & Dev Inc NMC1102114 Pershing
HRDI 157 4/9/2014 Hycroft Res & Dev Inc NMC1102115 Pershing
HRDI 158 4/10/2014 Hycroft Res & Dev Inc NMC1102116 Pershing
HRDI 159 4/10/2014 Hycroft Res & Dev Inc NMC1102117 Pershing
HRDI 16 12/16/2013 Hycroft Res & Dev Inc NMC1100191 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | SS

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
HRDI 160 4/10/2014 Hycroft Res & Dev Inc NMC1102118 Pershing
HRDI 161 4/10/2014 Hycroft Res & Dev Inc NMC1102119 Pershing
HRDI 162 4/10/2014 Hycroft Res & Dev Inc NMC1102120 Pershing
HRDI 163 4/10/2014 Hycroft Res & Dev Inc NMC1102121 Pershing
HRDI 164 4/10/2014 Hycroft Res & Dev Inc NMC1102122 Pershing
HRDI 165 4/10/2014 Hycroft Res & Dev Inc NMC1102123 Pershing
HRDI 166 4/10/2014 Hycroft Res & Dev Inc NMC1102124 Pershing
HRDI 167 4/10/2014 Hycroft Res & Dev Inc NMC1102125 Pershing
HRDI 168 4/9/2014 Hycroft Res & Dev Inc NMC1102126 Pershing
HRDI 169 4/9/2014 Hycroft Res & Dev Inc NMC1102127 Pershing
HRDI 17 12/16/2013 Hycroft Res & Dev Inc NMC1100192 Pershing
HRDI 170 4/9/2014 Hycroft Res & Dev Inc NMC1102128 Pershing
HRDI 171 4/9/2014 Hycroft Res & Dev Inc NMC1102129 Pershing
HRDI 172 4/11/2014 Hycroft Res & Dev Inc NMC1102130 Pershing
HRDI 173 4/11/2014 Hycroft Res & Dev Inc NMC1102131 Pershing
HRDI 174 4/11/2014 Hycroft Res & Dev Inc NMC1102132 Pershing
HRDI 175 4/11/2014 Hycroft Res & Dev Inc NMC1102133 Pershing
HRDI 176 4/11/2014 Hycroft Res & Dev Inc NMC1102134 Pershing
HRDI 177 4/11/2014 Hycroft Res & Dev Inc NMC1102135 Pershing
HRDI 178 4/11/2014 Hycroft Res & Dev Inc NMC1102136 Pershing
HRDI 179 4/11/2014 Hycroft Res & Dev Inc NMC1102137 Pershing
HRDI 18 12/16/2013 Hycroft Res & Dev Inc NMC1100193 Pershing
HRDI 180 4/11/2014 Hycroft Res & Dev Inc NMC1102138 Pershing
HRDI 181 4/11/2014 Hycroft Res & Dev Inc NMC1102139 Pershing
HRDI 182 4/11/2014 Hycroft Res & Dev Inc NMC1102140 Pershing
HRDI 183 4/11/2014 Hycroft Res & Dev Inc NMC1102141 Pershing
HRDI 184 4/11/2014 Hycroft Res & Dev Inc NMC1102142 Pershing
HRDI 185 4/11/2014 Hycroft Res & Dev Inc NMC1102143 Pershing
HRDI 186 4/11/2014 Hycroft Res & Dev Inc NMC1102144 Pershing
HRDI 187 4/11/2014 Hycroft Res & Dev Inc NMC1102145 Pershing
HRDI 188 4/10/2014 Hycroft Res & Dev Inc NMC1102146 Pershing
HRDI 189 4/10/2014 Hycroft Res & Dev Inc NMC1102147 Pershing
HRDI 19 12/16/2013 Hycroft Res & Dev Inc NMC1100194 Pershing
HRDI 190 4/10/2014 Hycroft Res & Dev Inc NMC1102148 Pershing
HRDI 191 4/10/2014 Hycroft Res & Dev Inc NMC1102149 Pershing
HRDI 192 4/15/2014 Hycroft Res & Dev Inc NMC1102150 Pershing
HRDI 193 4/15/2014 Hycroft Res & Dev Inc NMC1102151 Pershing
HRDI 194 4/10/2014 Hycroft Res & Dev Inc NMC1102152 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | TT

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
HRDI 195 4/10/2014 Hycroft Res & Dev Inc NMC1102153 Pershing
HRDI 196 4/10/2014 Hycroft Res & Dev Inc NMC1102154 Pershing
HRDI 197 4/10/2014 Hycroft Res & Dev Inc NMC1102155 Pershing
HRDI 198 4/16/2014 Hycroft Res & Dev Inc NMC1102156 Pershing
HRDI 199 4/10/2014 Hycroft Res & Dev Inc NMC1102157 Pershing
HRDI 2 12/16/2013 Hycroft Res & Dev Inc NMC1100177 Pershing
HRDI 20 12/16/2013 Hycroft Res & Dev Inc NMC1100195 Pershing
HRDI 200 4/15/2014 Hycroft Res & Dev Inc NMC1102158 Pershing
HRDI 201 4/15/2014 Hycroft Res & Dev Inc NMC1102159 Pershing
HRDI 202 4/10/2014 Hycroft Res & Dev Inc NMC1102160 Pershing
HRDI 203 4/16/2014 Hycroft Res & Dev Inc NMC1102161 Pershing
HRDI 204 4/16/2014 Hycroft Res & Dev Inc NMC1102162 Pershing
HRDI 205 4/16/2014 Hycroft Res & Dev Inc NMC1102163 Pershing
HRDI 206 4/16/2014 Hycroft Res & Dev Inc NMC1102164 Pershing
HRDI 207 4/16/2014 Hycroft Res & Dev Inc NMC1102165 Pershing
HRDI 208 4/16/2014 Hycroft Res & Dev Inc NMC1102166 Pershing
HRDI 209 4/16/2014 Hycroft Res & Dev Inc NMC1102167 Pershing
HRDI 21 12/16/2013 Hycroft Res & Dev Inc NMC1100196 Pershing
HRDI 210 4/16/2014 Hycroft Res & Dev Inc NMC1102168 Pershing
HRDI 211 4/16/2014 Hycroft Res & Dev Inc NMC1102170 Pershing
HRDI 213 4/16/2014 Hycroft Res & Dev Inc NMC1102171 Pershing
HRDI 214 4/16/2014 Hycroft Res & Dev Inc NMC1102172 Pershing
HRDI 215 4/16/2014 Hycroft Res & Dev Inc NMC1102173 Pershing
HRDI 216 4/16/2014 Hycroft Res & Dev Inc NMC1102174 Pershing
HRDI 217 4/16/2014 Hycroft Res & Dev Inc NMC1102175 Pershing
HRDI 22 12/16/2013 Hycroft Res & Dev Inc NMC1100197 Pershing
HRDI 220 4/16/2014 Hycroft Res & Dev Inc NMC1102178 Pershing
HRDI 221 4/15/2014 Hycroft Res & Dev Inc NMC1102179 Pershing
HRDI 222 4/15/2014 Hycroft Res & Dev Inc NMC1102180 Pershing
HRDI 223 4/15/2014 Hycroft Res & Dev Inc NMC1102181 Pershing
HRDI 23 12/16/2013 Hycroft Res & Dev Inc NMC1100198 Pershing
HRDI 24 12/16/2013 Hycroft Res & Dev Inc NMC1100199 Pershing
HRDI 25 12/16/2013 Hycroft Res & Dev Inc NMC1100200 Pershing
HRDI 26 12/16/2013 Hycroft Res & Dev Inc NMC1100201 Pershing
HRDI 27 12/16/2013 Hycroft Res & Dev Inc NMC1100202 Pershing
HRDI 28 12/17/2013 Hycroft Res & Dev Inc NMC1100203 Pershing
HRDI 29 12/17/2013 Hycroft Res & Dev Inc NMC1100204 Pershing
HRDI 3 12/16/2013 Hycroft Res & Dev Inc NMC1100178 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | UU

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
HRDI 30 12/17/2013 Hycroft Res & Dev Inc NMC1100205 Pershing
HRDI 31 12/17/2013 Hycroft Res & Dev Inc NMC1100206 Pershing
HRDI 32 12/17/2013 Hycroft Res & Dev Inc NMC1100207 Pershing
HRDI 33 12/17/2013 Hycroft Res & Dev Inc NMC1100208 Pershing
HRDI 34 12/18/2013 Hycroft Res & Dev Inc NMC1100209 Pershing
HRDI 35 12/18/2013 Hycroft Res & Dev Inc NMC1100210 Pershing
HRDI 36 12/17/2013 Hycroft Res & Dev Inc NMC1100211 Pershing
HRDI 37 12/17/2013 Hycroft Res & Dev Inc NMC1100212 Pershing
HRDI 38 12/17/2013 Hycroft Res & Dev Inc NMC1100213 Pershing
HRDI 39 12/17/2013 Hycroft Res & Dev Inc NMC1100214 Pershing
HRDI 4 12/16/2013 Hycroft Res & Dev Inc NMC1100179 Pershing
HRDI 40 12/17/2013 Hycroft Res & Dev Inc NMC1100215 Pershing
HRDI 41 12/17/2013 Hycroft Res & Dev Inc NMC1100216 Pershing
HRDI 42 12/17/2013 Hycroft Res & Dev Inc NMC1100217 Pershing
HRDI 43 12/17/2013 Hycroft Res & Dev Inc NMC1100218 Pershing
HRDI 44 12/17/2013 Hycroft Res & Dev Inc NMC1100219 Pershing
HRDI 45 12/17/2013 Hycroft Res & Dev Inc NMC1100220 Pershing
HRDI 46 12/17/2013 Hycroft Res & Dev Inc NMC1100221 Pershing
HRDI 47 4/7/2014 Hycroft Res & Dev Inc NMC1102005 Pershing
HRDI 48 4/7/2014 Hycroft Res & Dev Inc NMC1102006 Pershing
HRDI 49 4/7/2014 Hycroft Res & Dev Inc NMC1102007 Pershing
HRDI 5 12/16/2013 Hycroft Res & Dev Inc NMC1100180 Pershing
HRDI 50 4/7/2014 Hycroft Res & Dev Inc NMC1102008 Pershing
HRDI 51 4/7/2014 Hycroft Res & Dev Inc NMC1102009 Pershing
HRDI 52 4/7/2014 Hycroft Res & Dev Inc NMC1102010 Pershing
HRDI 53 4/7/2014 Hycroft Res & Dev Inc NMC1102011 Pershing
HRDI 54 4/7/2014 Hycroft Res & Dev Inc NMC1102012 Pershing
HRDI 55 4/7/2014 Hycroft Res & Dev Inc NMC1102013 Pershing
HRDI 56 4/7/2014 Hycroft Res & Dev Inc NMC1102014 Pershing
HRDI 57 4/7/2014 Hycroft Res & Dev Inc NMC1102015 Pershing
HRDI 58 4/7/2014 Hycroft Res & Dev Inc NMC1102016 Pershing
HRDI 59 4/7/2014 Hycroft Res & Dev Inc NMC1102017 Pershing
HRDI 6 12/16/2013 Hycroft Res & Dev Inc NMC1100181 Pershing
HRDI 60 4/7/2014 Hycroft Res & Dev Inc NMC1102018 Pershing
HRDI 61 4/7/2014 Hycroft Res & Dev Inc NMC1102019 Pershing
HRDI 62 4/7/2014 Hycroft Res & Dev Inc NMC1102020 Pershing
HRDI 63 4/7/2014 Hycroft Res & Dev Inc NMC1102021 Pershing
HRDI 64 4/7/2014 Hycroft Res & Dev Inc NMC1102022 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | VV

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County

HRDI 65 4/7/2014 Hycroft Res & Dev Inc NMC1102023 Pershing
HRDI 66 4/7/2014 Hycroft Res & Dev Inc NMC1102024 Pershing
HRDI 67 4/7/2014 Hycroft Res & Dev Inc NMC1102025 Pershing
HRDI 68 4/7/2014 Hycroft Res & Dev Inc NMC1102026 Pershing
HRDI 69 4/7/2014 Hycroft Res & Dev Inc NMC1102027 Pershing
HRDI 7 12/16/2013 Hycroft Res & Dev Inc NMC1100182 Pershing
HRDI 70 4/7/2014 Hycroft Res & Dev Inc NMC1102028 Pershing
HRDI 71 4/7/2014 Hycroft Res & Dev Inc NMC1102029 Pershing
HRDI 72 4/7/2014 Hycroft Res & Dev Inc NMC1102030 Pershing
HRDI 73 4/7/2014 Hycroft Res & Dev Inc NMC1102031 Pershing
HRDI 74 4/7/2014 Hycroft Res & Dev Inc NMC1102032 Pershing
HRDI 75 4/7/2014 Hycroft Res & Dev Inc NMC1102033 Pershing
HRDI 76 4/7/2014 Hycroft Res & Dev Inc NMC1102034 Pershing
HRDI 77 4/8/2014 Hycroft Res & Dev Inc NMC1102035 Pershing
HRDI 78 4/8/2014 Hycroft Res & Dev Inc NMC1102036 Pershing
HRDI 79 4/8/2014 Hycroft Res & Dev Inc NMC1102037 Pershing
HRDI 8 12/16/2013 Hycroft Res & Dev Inc NMC1100183 Pershing
HRDI 80 4/8/2014 Hycroft Res & Dev Inc NMC1102038 Pershing
HRDI 81 4/8/2014 Hycroft Res & Dev Inc NMC1102039 Pershing
HRDI 82 4/8/2014 Hycroft Res & Dev Inc NMC1102040 Pershing
HRDI 83 4/8/2014 Hycroft Res & Dev Inc NMC1102041 Pershing
HRDI 84 4/8/2014 Hycroft Res & Dev Inc NMC1102042 Pershing
HRDI 85 4/8/2014 Hycroft Res & Dev Inc NMC1102043 Pershing
HRDI 86 4/8/2014 Hycroft Res & Dev Inc NMC1102044 Pershing
HRDI 87 4/8/2014 Hycroft Res & Dev Inc NMC1102045 Pershing
HRDI 88 4/8/2014 Hycroft Res & Dev Inc NMC1102046 Pershing
HRDI 89 4/8/2014 Hycroft Res & Dev Inc NMC1102047 Pershing
HRDI 9 12/16/2013 Hycroft Res & Dev Inc NMC1100184 Pershing
HRDI 90 4/8/2014 Hycroft Res & Dev Inc NMC1102048 Pershing
HRDI 91 4/8/2014 Hycroft Res & Dev Inc NMC1102049 Pershing
HRDI 92 4/8/2014 Hycroft Res & Dev Inc NMC1102050 Pershing
HRDI 93 4/8/2014 Hycroft Res & Dev Inc NMC1102051 Pershing
HRDI 94 4/8/2014 Hycroft Res & Dev Inc NMC1102052 Pershing
HRDI 95 4/8/2014 Hycroft Res & Dev Inc NMC1102053 Pershing
HRDI 96 4/8/2014 Hycroft Res & Dev Inc NMC1102054 Pershing
HRDI 97 4/8/2014 Hycroft Res & Dev Inc NMC1102055 Pershing
HRDI 98 4/8/2014 Hycroft Res & Dev Inc NMC1102056 Pershing
HRDI 99 4/8/2014 Hycroft Res & Dev Inc NMC1102057 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | WW

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 102 8/13/2010 Hycroft Res & Dev Inc NMC1027940 Pershing
NC 103 8/13/2010 Hycroft Res & Dev Inc NMC1027941 Pershing
NC 104 8/13/2010 Hycroft Res & Dev Inc NMC1027942 Pershing
NC 105 8/13/2010 Hycroft Res & Dev Inc NMC1027943 Pershing
NC 106 8/13/2010 Hycroft Res & Dev Inc NMC1027944 Pershing
NC 107 8/13/2010 Hycroft Res & Dev Inc NMC1027945 Pershing
NC 108 8/13/2010 Hycroft Res & Dev Inc NMC1027946 Pershing
NC 109 8/13/2010 Hycroft Res & Dev Inc NMC1027947 Pershing
NC 133 8/13/2010 Hycroft Res & Dev Inc NMC1027971 Pershing
NC 134 8/13/2010 Hycroft Res & Dev Inc NMC1027972 Pershing
NC 135 8/13/2010 Hycroft Res & Dev Inc NMC1027973 Pershing
NC 136 8/13/2010 Hycroft Res & Dev Inc NMC1027974 Pershing
NC 137 8/13/2010 Hycroft Res & Dev Inc NMC1027975 Pershing
NC 138 8/13/2010 Hycroft Res & Dev Inc NMC1027976 Pershing
NC 139 8/13/2010 Hycroft Res & Dev Inc NMC1027977 Pershing
NC 140 8/13/2010 Hycroft Res & Dev Inc NMC1027978 Pershing
NC 141 8/13/2010 Hycroft Res & Dev Inc NMC1027979 Pershing
NC 142 8/13/2010 Hycroft Res & Dev Inc NMC1027980 Pershing
NC 143 8/13/2010 Hycroft Res & Dev Inc NMC1027981 Pershing
NC 144 8/13/2010 Hycroft Res & Dev Inc NMC1027982 Pershing
NC 145 8/13/2010 Hycroft Res & Dev Inc NMC1027983 Pershing
NC 146 8/13/2010 Hycroft Res & Dev Inc NMC1027984 Pershing
NC 147 8/13/2010 Hycroft Res & Dev Inc NMC1027985 Pershing
NC 148 8/13/2010 Hycroft Res & Dev Inc NMC1027986 Pershing
NC 149 8/13/2010 Hycroft Res & Dev Inc NMC1027987 Pershing
NC 150 8/13/2010 Hycroft Res & Dev Inc NMC1027988 Pershing
NC 171 8/13/2010 Hycroft Res & Dev Inc NMC1028009 Pershing
NC 172 8/13/2010 Hycroft Res & Dev Inc NMC1028010 Pershing
NC 173 8/13/2010 Hycroft Res & Dev Inc NMC1028011 Pershing
NC 174 8/13/2010 Hycroft Res & Dev Inc NMC1028012 Pershing
NC 175 8/13/2010 Hycroft Res & Dev Inc NMC1028013 Pershing
NC 176 8/13/2010 Hycroft Res & Dev Inc NMC1028014 Pershing
NC 177 8/13/2010 Hycroft Res & Dev Inc NMC1028015 Pershing
NC 178 8/13/2010 Hycroft Res & Dev Inc NMC1028016 Pershing
NC 179 8/13/2010 Hycroft Res & Dev Inc NMC1028017 Pershing
NC 180 8/13/2010 Hycroft Res & Dev Inc NMC1028018 Pershing
NC 181 8/13/2010 Hycroft Res & Dev Inc NMC1028019 Pershing
NC 182 8/13/2010 Hycroft Res & Dev Inc NMC1028020 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | XX

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 183 8/13/2010 Hycroft Res & Dev Inc NMC1028021 Pershing
NC 184 8/13/2010 Hycroft Res & Dev Inc NMC1028022 Pershing
NC 185 8/13/2010 Hycroft Res & Dev Inc NMC1028023 Pershing
NC 186 8/13/2010 Hycroft Res & Dev Inc NMC1028024 Pershing
NC 187 8/13/2010 Hycroft Res & Dev Inc NMC1028025 Pershing
NC 188 8/13/2010 Hycroft Res & Dev Inc NMC1028026 Pershing
NC 206 8/13/2010 Hycroft Res & Dev Inc NMC1028044 Pershing
NC 207 8/13/2010 Hycroft Res & Dev Inc NMC1028045 Pershing
NC 208 8/13/2010 Hycroft Res & Dev Inc NMC1028046 Pershing
NC 209 8/13/2010 Hycroft Res & Dev Inc NMC1028047 Pershing
NC 210 8/13/2010 Hycroft Res & Dev Inc NMC1028048 Pershing
NC 211 8/13/2010 Hycroft Res & Dev Inc NMC1028049 Pershing
NC 212 8/13/2010 Hycroft Res & Dev Inc NMC1028050 Pershing
NC 213 8/13/2010 Hycroft Res & Dev Inc NMC1028051 Pershing
NC 214 8/13/2010 Hycroft Res & Dev Inc NMC1028052 Pershing
NC 215 8/13/2010 Hycroft Res & Dev Inc NMC1028053 Pershing
NC 216 8/13/2010 Hycroft Res & Dev Inc NMC1028054 Pershing
NC 217 8/13/2010 Hycroft Res & Dev Inc NMC1028055 Pershing
NC 218 8/13/2010 Hycroft Res & Dev Inc NMC1028056 Pershing
NC 219 8/13/2010 Hycroft Res & Dev Inc NMC1028057 Pershing
NC 220 8/13/2010 Hycroft Res & Dev Inc NMC1028058 Pershing
NC 221 8/13/2010 Hycroft Res & Dev Inc NMC1028059 Pershing
NC 222 8/13/2010 Hycroft Res & Dev Inc NMC1028060 Pershing
NC 223 8/13/2010 Hycroft Res & Dev Inc NMC1028061 Pershing
NC 241 8/13/2010 Hycroft Res & Dev Inc NMC1028079 Pershing
NC 242 8/13/2010 Hycroft Res & Dev Inc NMC1028080 Pershing
NC 243 8/13/2010 Hycroft Res & Dev Inc NMC1028081 Pershing
NC 244 8/13/2010 Hycroft Res & Dev Inc NMC1028082 Pershing
NC 245 8/13/2010 Hycroft Res & Dev Inc NMC1028083 Pershing
NC 246 8/13/2010 Hycroft Res & Dev Inc NMC1028084 Pershing
NC 247 8/13/2010 Hycroft Res & Dev Inc NMC1028085 Pershing
NC 248 8/13/2010 Hycroft Res & Dev Inc NMC1028086 Pershing
NC 249 8/13/2010 Hycroft Res & Dev Inc NMC1028087 Pershing
NC 250 8/13/2010 Hycroft Res & Dev Inc NMC1028088 Pershing
NC 251 8/13/2010 Hycroft Res & Dev Inc NMC1028089 Pershing
NC 252 8/13/2010 Hycroft Res & Dev Inc NMC1028090 Pershing
NC 253 8/13/2010 Hycroft Res & Dev Inc NMC1028091 Pershing
NC 254 8/13/2010 Hycroft Res & Dev Inc NMC1028092 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | YY

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 255 8/13/2010 Hycroft Res & Dev Inc NMC1028093 Pershing
NC 256 8/13/2010 Hycroft Res & Dev Inc NMC1028094 Pershing
NC 257 8/13/2010 Hycroft Res & Dev Inc NMC1028095 Pershing
NC 258 8/13/2010 Hycroft Res & Dev Inc NMC1028096 Pershing
NC 275 8/13/2010 Hycroft Res & Dev Inc NMC1028113 Pershing
NC 276 8/13/2010 Hycroft Res & Dev Inc NMC1028114 Pershing
NC 277 8/13/2010 Hycroft Res & Dev Inc NMC1028115 Pershing
NC 278 8/13/2010 Hycroft Res & Dev Inc NMC1028116 Pershing
NC 279 8/13/2010 Hycroft Res & Dev Inc NMC1028117 Pershing
NC 280 8/13/2010 Hycroft Res & Dev Inc NMC1028118 Pershing
NC 281 8/13/2010 Hycroft Res & Dev Inc NMC1028119 Pershing
NC 282 8/13/2010 Hycroft Res & Dev Inc NMC1028120 Pershing
NC 283 8/13/2010 Hycroft Res & Dev Inc NMC1028121 Pershing
NC 284 8/13/2010 Hycroft Res & Dev Inc NMC1028122 Pershing
NC 285 8/13/2010 Hycroft Res & Dev Inc NMC1028123 Pershing
NC 286 8/13/2010 Hycroft Res & Dev Inc NMC1028124 Pershing
NC 287 8/13/2010 Hycroft Res & Dev Inc NMC1028125 Pershing
NC 288 8/13/2010 Hycroft Res & Dev Inc NMC1028126 Pershing
NC 289 8/13/2010 Hycroft Res & Dev Inc NMC1028127 Pershing
NC 290 8/13/2010 Hycroft Res & Dev Inc NMC1028128 Pershing
NC 291 8/13/2010 Hycroft Res & Dev Inc NMC1028129 Pershing
NC 292 8/13/2010 Hycroft Res & Dev Inc NMC1028130 Pershing
NC 307 8/13/2010 Hycroft Res & Dev Inc NMC1028145 Pershing
NC 308 8/13/2010 Hycroft Res & Dev Inc NMC1028146 Pershing
NC 309 8/13/2010 Hycroft Res & Dev Inc NMC1028147 Pershing
NC 310 8/13/2010 Hycroft Res & Dev Inc NMC1028148 Pershing
NC 311 8/13/2010 Hycroft Res & Dev Inc NMC1028149 Pershing
NC 312 8/13/2010 Hycroft Res & Dev Inc NMC1028150 Pershing
NC 313 8/13/2010 Hycroft Res & Dev Inc NMC1028151 Pershing
NC 314 8/13/2010 Hycroft Res & Dev Inc NMC1028152 Pershing
NC 315 8/13/2010 Hycroft Res & Dev Inc NMC1028153 Pershing
NC 316 8/13/2010 Hycroft Res & Dev Inc NMC1028154 Pershing
NC 317 8/13/2010 Hycroft Res & Dev Inc NMC1028155 Pershing
NC 318 8/13/2010 Hycroft Res & Dev Inc NMC1028156 Pershing
NC 319 8/13/2010 Hycroft Res & Dev Inc NMC1028157 Pershing
NC 320 8/13/2010 Hycroft Res & Dev Inc NMC1028158 Pershing
NC 321 8/13/2010 Hycroft Res & Dev Inc NMC1028159 Pershing
NC 322 8/13/2010 Hycroft Res & Dev Inc NMC1028160 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | ZZ

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 323 8/13/2010 Hycroft Res & Dev Inc NMC1028161 Pershing
NC 324 8/13/2010 Hycroft Res & Dev Inc NMC1028162 Pershing
OS 1 9/11/2012 Hycroft Res & Dev Inc NMC1078793 Pershing
OS 10 9/11/2012 Hycroft Res & Dev Inc NMC1078802 Pershing
OS 11 9/11/2012 Hycroft Res & Dev Inc NMC1078803 Pershing
OS 12 9/11/2012 Hycroft Res & Dev Inc NMC1078804 Pershing
OS 2 9/11/2012 Hycroft Res & Dev Inc NMC1078794 Pershing
OS 3 9/11/2012 Hycroft Res & Dev Inc NMC1078795 Pershing
OS 4 9/11/2012 Hycroft Res & Dev Inc NMC1078796 Pershing
OS 5 9/11/2012 Hycroft Res & Dev Inc NMC1078797 Pershing
OS 6 9/11/2012 Hycroft Res & Dev Inc NMC1078798 Pershing
OS 7 9/11/2012 Hycroft Res & Dev Inc NMC1078799 Pershing
OS 8 9/11/2012 Hycroft Res & Dev Inc NMC1078800 Pershing
OS 9 9/11/2012 Hycroft Res & Dev Inc NMC1078801 Pershing
OSC 1 10/28/2010 Hycroft Res & Dev Inc NMC1035889 Pershing
OSC 2 10/28/2010 Hycroft Res & Dev Inc NMC1035890 Pershing
OSC 3 10/28/2010 Hycroft Res & Dev Inc NMC1035891 Pershing
OSC 35 11/1/2010 Hycroft Res & Dev Inc NMC1035895 Pershing
OSC 36 10/29/2010 Hycroft Res & Dev Inc NMC1035896 Pershing
OSC 37 10/29/2010 Hycroft Res & Dev Inc NMC1035897 Pershing
OSC 38 11/1/2010 Hycroft Res & Dev Inc NMC1035898 Pershing
OSC 39 10/29/2010 Hycroft Res & Dev Inc NMC1035899 Pershing
OSC 4 10/28/2010 Hycroft Res & Dev Inc NMC1035892 Pershing
OSC 40 10/29/2010 Hycroft Res & Dev Inc NMC1035900 Pershing
OSC 41 11/1/2010 Hycroft Res & Dev Inc NMC1035901 Pershing
OSC 42 10/29/2010 Hycroft Res & Dev Inc NMC1035902 Pershing
OSC 43 10/29/2010 Hycroft Res & Dev Inc NMC1035903 Pershing
OSC 44 11/1/2010 Hycroft Res & Dev Inc NMC1035904 Pershing
OSC 45 10/29/2010 Hycroft Res & Dev Inc NMC1035905 Pershing
OSC 46 10/29/2010 Hycroft Res & Dev Inc NMC1035906 Pershing
OSC 47 10/31/2010 Hycroft Res & Dev Inc NMC1035907 Pershing
OSC 48 10/31/2010 Hycroft Res & Dev Inc NMC1035908 Pershing
OSC 49 10/31/2010 Hycroft Res & Dev Inc NMC1035909 Pershing
OSC 5 10/28/2010 Hycroft Res & Dev Inc NMC1035893 Pershing
OSC 50 10/31/2010 Hycroft Res & Dev Inc NMC1035910 Pershing
OSC 51 10/31/2010 Hycroft Res & Dev Inc NMC1035911 Pershing
OSC 52 10/31/2010 Hycroft Res & Dev Inc NMC1035912 Pershing
OSC 53 10/31/2010 Hycroft Res & Dev Inc NMC1035913 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | AAA

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
OSC 54 10/31/2010 Hycroft Res & Dev Inc NMC1035914 Pershing
OSC 55 10/31/2010 Hycroft Res & Dev Inc NMC1035915 Pershing
OSC 56 10/31/2010 Hycroft Res & Dev Inc NMC1035916 Pershing
OSC 57 10/31/2010 Hycroft Res & Dev Inc NMC1035917 Pershing
OSC 58 10/31/2010 Hycroft Res & Dev Inc NMC1035918 Pershing
OSC 59 10/31/2010 Hycroft Res & Dev Inc NMC1035919 Pershing
OSC 6 10/28/2010 Hycroft Res & Dev Inc NMC1035894 Pershing
OSC 60 10/31/2010 Hycroft Res & Dev Inc NMC1035920 Pershing
OSC 61 10/31/2010 Hycroft Res & Dev Inc NMC1035921 Pershing
OSC 62 10/31/2010 Hycroft Res & Dev Inc NMC1035922 Pershing
OSC 63 10/31/2010 Hycroft Res & Dev Inc NMC1035923 Pershing
OSC 64 10/31/2010 Hycroft Res & Dev Inc NMC1035924 Pershing
OSC 65 10/31/2010 Hycroft Res & Dev Inc NMC1035925 Pershing
OSC 66 10/31/2010 Hycroft Res & Dev Inc NMC1035926 Pershing
OSC 67 11/1/2010 Hycroft Res & Dev Inc NMC1035927 Pershing
OSC 68 11/1/2010 Hycroft Res & Dev Inc NMC1035928 Pershing
OSC 69 11/1/2010 Hycroft Res & Dev Inc NMC1035929 Pershing
OSC 70 11/1/2010 Hycroft Res & Dev Inc NMC1035930 Pershing
OSC 71 11/1/2010 Hycroft Res & Dev Inc NMC1035931 Pershing
OSC 72 11/1/2010 Hycroft Res & Dev Inc NMC1035932 Pershing
OSC 73 11/1/2010 Hycroft Res & Dev Inc NMC1035933 Pershing
OSC 74 11/1/2010 Hycroft Res & Dev Inc NMC1035934 Pershing
OSC 75 11/1/2010 Hycroft Res & Dev Inc NMC1035935 Pershing
OSC 76 11/1/2010 Hycroft Res & Dev Inc NMC1035936 Pershing
RMK 1 9/27/2012 Hycroft Res & Dev Inc NMC1078774 Pershing
RMK 10 9/27/2012 Hycroft Res & Dev Inc NMC1078783 Pershing
RMK 11 9/27/2012 Hycroft Res & Dev Inc NMC1078784 Pershing
RMK 12 9/27/2012 Hycroft Res & Dev Inc NMC1078785 Pershing
RMK 13 9/27/2012 Hycroft Res & Dev Inc NMC1078786 Pershing
RMK 14 9/27/2012 Hycroft Res & Dev Inc NMC1078787 Pershing
RMK 15 9/27/2012 Hycroft Res & Dev Inc NMC1078788 Pershing
RMK 16 9/27/2012 Hycroft Res & Dev Inc NMC1078789 Pershing
RMK 17 9/27/2012 Hycroft Res & Dev Inc NMC1078790 Pershing
RMK 18 9/27/2012 Hycroft Res & Dev Inc NMC1078791 Pershing
RMK 19 9/27/2012 Hycroft Res & Dev Inc NMC1078792 Pershing
RMK 2 9/27/2012 Hycroft Res & Dev Inc NMC1078775 Pershing
RMK 3 9/27/2012 Hycroft Res & Dev Inc NMC1078776 Pershing
RMK 4 9/27/2012 Hycroft Res & Dev Inc NMC1078777 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | BBB

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RMK 5 9/27/2012 Hycroft Res & Dev Inc NMC1078778 Pershing
RMK 6 9/27/2012 Hycroft Res & Dev Inc NMC1078779 Pershing
RMK 7 9/27/2012 Hycroft Res & Dev Inc NMC1078780 Pershing
RMK 8 9/27/2012 Hycroft Res & Dev Inc NMC1078781 Pershing
RMK 9 9/27/2012 Hycroft Res & Dev Inc NMC1078782 Pershing
WCR 100 7/25/2012 Hycroft Res & Dev Inc NMC1076520 Pershing
WCR 101 7/25/2012 Hycroft Res & Dev Inc NMC1076521 Pershing
WCR 102 7/25/2012 Hycroft Res & Dev Inc NMC1076522 Pershing
WCR 103 7/26/2012 Hycroft Res & Dev Inc NMC1076523 Pershing
WCR 104 7/26/2012 Hycroft Res & Dev Inc NMC1076524 Pershing
WCR 105 7/26/2012 Hycroft Res & Dev Inc NMC1076525 Pershing
WCR 106 7/26/2012 Hycroft Res & Dev Inc NMC1076526 Pershing
WCR 107 7/26/2012 Hycroft Res & Dev Inc NMC1076527 Pershing
WCR 108 7/26/2012 Hycroft Res & Dev Inc NMC1076528 Pershing
WCR 109 7/25/2012 Hycroft Res & Dev Inc NMC1076529 Pershing
WCR 11 7/26/2012 Hycroft Res & Dev Inc NMC1076453 Pershing
WCR 110 7/25/2012 Hycroft Res & Dev Inc NMC1076530 Pershing
WCR 111 7/25/2012 Hycroft Res & Dev Inc NMC1076531 Pershing
WCR 112 7/25/2012 Hycroft Res & Dev Inc NMC1076532 Pershing
WCR 113 7/25/2012 Hycroft Res & Dev Inc NMC1076533 Pershing
WCR 114 7/25/2012 Hycroft Res & Dev Inc NMC1076534 Pershing
WCR 115 7/25/2012 Hycroft Res & Dev Inc NMC1076535 Pershing
WCR 116 7/25/2012 Hycroft Res & Dev Inc NMC1076536 Pershing
WCR 117 7/25/2012 Hycroft Res & Dev Inc NMC1076537 Pershing
WCR 12 7/26/2012 Hycroft Res & Dev Inc NMC1076454 Pershing
WCR 13 7/26/2012 Hycroft Res & Dev Inc NMC1076455 Pershing
WCR 14 7/26/2012 Hycroft Res & Dev Inc NMC1076456 Pershing
WCR 15 7/26/2012 Hycroft Res & Dev Inc NMC1076457 Pershing
WCR 16 7/26/2012 Hycroft Res & Dev Inc NMC1076458 Pershing
WCR 17 7/26/2012 Hycroft Res & Dev Inc NMC1076459 Pershing
WCR 18 7/26/2012 Hycroft Res & Dev Inc NMC1076460 Pershing
WCR 19 7/26/2012 Hycroft Res & Dev Inc NMC1076461 Pershing
WCR 20 7/26/2012 Hycroft Res & Dev Inc NMC1076462 Pershing
WCR 21 7/26/2012 Hycroft Res & Dev Inc NMC1076463 Pershing
WCR 22 7/26/2012 Hycroft Res & Dev Inc NMC1076464 Pershing
WCR 23 7/26/2012 Hycroft Res & Dev Inc NMC1076465 Pershing
WCR 24 7/26/2012 Hycroft Res & Dev Inc NMC1076466 Pershing
WCR 25 7/26/2012 Hycroft Res & Dev Inc NMC1076467 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | CCC

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County

WCR 26 7/26/2012 Hycroft Res & Dev Inc NMC1076468 Pershing
WCR 27 7/26/2012 Hycroft Res & Dev Inc NMC1076469 Pershing
WCR 28 7/26/2012 Hycroft Res & Dev Inc NMC1076470 Pershing
WCR 29 7/26/2012 Hycroft Res & Dev Inc NMC1076471 Pershing
WCR 30 7/26/2012 Hycroft Res & Dev Inc NMC1076472 Pershing
WCR 31 7/26/2012 Hycroft Res & Dev Inc NMC1076473 Pershing
WCR 32 7/26/2012 Hycroft Res & Dev Inc NMC1076474 Pershing
WCR 33 7/26/2012 Hycroft Res & Dev Inc NMC1076475 Pershing
WCR 34 7/26/2012 Hycroft Res & Dev Inc NMC1076476 Pershing
WCR 35 7/26/2012 Hycroft Res & Dev Inc NMC1076477 Pershing
WCR 36 7/26/2012 Hycroft Res & Dev Inc NMC1076478 Pershing
WCR 47 7/25/2012 Hycroft Res & Dev Inc NMC1076479 Pershing
WCR 48 7/25/2012 Hycroft Res & Dev Inc NMC1076480 Pershing
WCR 49 7/25/2012 Hycroft Res & Dev Inc NMC1076481 Pershing
WCR 50 7/25/2012 Hycroft Res & Dev Inc NMC1076482 Pershing
WCR 51 7/25/2012 Hycroft Res & Dev Inc NMC1076483 Pershing
WCR 52 7/25/2012 Hycroft Res & Dev Inc NMC1076484 Pershing
WCR 53 7/25/2012 Hycroft Res & Dev Inc NMC1076485 Pershing
WCR 54 7/25/2012 Hycroft Res & Dev Inc NMC1076486 Pershing
WCR 55 7/25/2012 Hycroft Res & Dev Inc NMC1076487 Pershing
WCR 56 7/25/2012 Hycroft Res & Dev Inc NMC1076488 Pershing
WCR 57 7/25/2012 Hycroft Res & Dev Inc NMC1076489 Pershing
WCR 58 7/25/2012 Hycroft Res & Dev Inc NMC1076490 Pershing
WCR 59 7/25/2012 Hycroft Res & Dev Inc NMC1076491 Pershing
WCR 60 7/25/2012 Hycroft Res & Dev Inc NMC1076492 Pershing
WCR 61 7/25/2012 Hycroft Res & Dev Inc NMC1076493 Pershing
WCR 62 7/25/2012 Hycroft Res & Dev Inc NMC1076494 Pershing
WCR 63 7/25/2012 Hycroft Res & Dev Inc NMC1076495 Pershing
WCR 64 7/25/2012 Hycroft Res & Dev Inc NMC1076496 Pershing
WCR 65 7/25/2012 Hycroft Res & Dev Inc NMC1076497 Pershing
WCR 66 7/25/2012 Hycroft Res & Dev Inc NMC1076498 Pershing
WCR 67 7/25/2012 Hycroft Res & Dev Inc NMC1076499 Pershing
WCR 68 7/25/2012 Hycroft Res & Dev Inc NMC1076500 Pershing
WCR 69 7/25/2012 Hycroft Res & Dev Inc NMC1076501 Pershing
WCR 70 7/25/2012 Hycroft Res & Dev Inc NMC1076502 Pershing
WCR 71 7/25/2012 Hycroft Res & Dev Inc NMC1076503 Pershing
WCR 72 7/25/2012 Hycroft Res & Dev Inc NMC1076504 Pershing
WCR 73 7/25/2012 Hycroft Res & Dev Inc NMC1076505 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | DDD

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
WCR 74 7/25/2012 Hycroft Res & Dev Inc NMC1076506 Pershing
WCR 75 7/25/2012 Hycroft Res & Dev Inc NMC1076507 Pershing
WCR 76 7/25/2012 Hycroft Res & Dev Inc NMC1076508 Pershing
WCR 77 7/25/2012 Hycroft Res & Dev Inc NMC1076509 Pershing
WCR 78 7/25/2012 Hycroft Res & Dev Inc NMC1076510 Pershing
WCR 79 7/25/2012 Hycroft Res & Dev Inc NMC1076511 Pershing
WCR 80 7/25/2012 Hycroft Res & Dev Inc NMC1076512 Pershing
WCR 81 7/25/2012 Hycroft Res & Dev Inc NMC1076513 Pershing
WCR 82 7/25/2012 Hycroft Res & Dev Inc NMC1076514 Pershing
WCR 83 7/25/2012 Hycroft Res & Dev Inc NMC1076515 Pershing
WCR 84 7/25/2012 Hycroft Res & Dev Inc NMC1076516 Pershing
WCR 97 7/25/2012 Hycroft Res & Dev Inc NMC1076517 Pershing
WCR 98 7/25/2012 Hycroft Res & Dev Inc NMC1076518 Pershing
WCR 99 7/25/2012 Hycroft Res & Dev Inc NMC1076519 Pershing
CKC#8 9/6/1973 Crofoot Daniel M NMC 88355 Pershing
CKC#9 9/6/1973 Crofoot Daniel M NMC 88356 Pershing
FG 1 9/1/2006 Hycroft Res & Dev Inc NMC 939059 Pershing
FG 10 9/11/2006 Hycroft Res & Dev Inc NMC 939068 Pershing
FG 100 9/2/2006 Hycroft Res & Dev Inc NMC 939157 Pershing
FG 101 9/2/2006 Hycroft Res & Dev Inc NMC 939158 Pershing
FG 102 9/2/2006 Hycroft Res & Dev Inc NMC 939159 Pershing
FG 103 9/2/2006 Hycroft Res & Dev Inc NMC 939160 Pershing
FG 104 9/2/2006 Hycroft Res & Dev Inc NMC 939161 Pershing
FG 105 9/2/2006 Hycroft Res & Dev Inc NMC 939162 Pershing
FG 106 9/2/2006 Hycroft Res & Dev Inc NMC 939163 Pershing
FG 107 9/2/2006 Hycroft Res & Dev Inc NMC 939164 Pershing
FG 108 9/2/2006 Hycroft Res & Dev Inc NMC 939165 Pershing
FG 109 9/2/2006 Hycroft Res & Dev Inc NMC 939166 Pershing
FG 11 9/11/2006 Hycroft Res & Dev Inc NMC 939069 Pershing
FG 110 9/2/2006 Hycroft Res & Dev Inc NMC 939167 Pershing
FG 111 9/2/2006 Hycroft Res & Dev Inc NMC 939168 Pershing
FG 112 9/2/2006 Hycroft Res & Dev Inc NMC 939169 Pershing
FG 113 9/8/2006 Hycroft Res & Dev Inc NMC 939170 Pershing
FG 114 9/8/2006 Hycroft Res & Dev Inc NMC 939171 Pershing
FG 115 9/8/2006 Hycroft Res & Dev Inc NMC 939172 Pershing
FG 116 9/8/2006 Hycroft Res & Dev Inc NMC 939173 Pershing
FG 12 9/11/2006 Hycroft Res & Dev Inc NMC 939070 Pershing
FG 121 9/9/2006 Hycroft Res & Dev Inc NMC 939174 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | EEE

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County

FG 122 9/9/2006 Hycroft Res & Dev Inc NMC 939175 Pershing
FG 123 9/9/2006 Hycroft Res & Dev Inc NMC 939176 Pershing
FG 124 9/9/2006 Hycroft Res & Dev Inc NMC 939177 Pershing
FG 125 9/9/2006 Hycroft Res & Dev Inc NMC 939178 Pershing
FG 126 9/9/2006 Hycroft Res & Dev Inc NMC 939179 Pershing
FG 127 9/9/2006 Hycroft Res & Dev Inc NMC 939180 Pershing
FG 13 9/1/2006 Hycroft Res & Dev Inc NMC 939071 Pershing
FG 130 9/11/2006 Hycroft Res & Dev Inc NMC 939181 Pershing
FG 131 9/11/2006 Hycroft Res & Dev Inc NMC 939182 Pershing
FG 132 9/11/2006 Hycroft Res & Dev Inc NMC 939183 Pershing
FG 133 9/11/2006 Hycroft Res & Dev Inc NMC 939184 Pershing
FG 134 9/11/2006 Hycroft Res & Dev Inc NMC 939185 Pershing
FG 135 9/11/2006 Hycroft Res & Dev Inc NMC 939186 Pershing
FG 136 9/11/2006 Hycroft Res & Dev Inc NMC 939187 Pershing
FG 137 9/2/2006 Hycroft Res & Dev Inc NMC 939188 Pershing
FG 138 9/2/2006 Hycroft Res & Dev Inc NMC 939189 Pershing
FG 139 9/2/2006 Hycroft Res & Dev Inc NMC 939190 Pershing
FG 14 9/1/2006 Hycroft Res & Dev Inc NMC 939072 Pershing
FG 140 9/2/2006 Hycroft Res & Dev Inc NMC 939191 Pershing
FG 141 9/2/2006 Hycroft Res & Dev Inc NMC 939192 Pershing
FG 142 9/2/2006 Hycroft Res & Dev Inc NMC 939193 Pershing
FG 143 9/2/2006 Hycroft Res & Dev Inc NMC 939194 Pershing
FG 144 9/2/2006 Hycroft Res & Dev Inc NMC 939195 Pershing
FG 145 9/2/2006 Hycroft Res & Dev Inc NMC 939196 Pershing
FG 146 9/2/2006 Hycroft Res & Dev Inc NMC 939197 Pershing
FG 147 9/2/2006 Hycroft Res & Dev Inc NMC 939198 Pershing
FG 148 9/2/2006 Hycroft Res & Dev Inc NMC 939199 Pershing
FG 149 9/2/2006 Hycroft Res & Dev Inc NMC 939200 Pershing
FG 15 9/1/2006 Hycroft Res & Dev Inc NMC 939073 Pershing
FG 150 9/2/2006 Hycroft Res & Dev Inc NMC 939201 Pershing
FG 151 9/2/2006 Hycroft Res & Dev Inc NMC 939202 Pershing
FG 152 9/2/2006 Hycroft Res & Dev Inc NMC 939203 Pershing
FG 153 9/2/2006 Hycroft Res & Dev Inc NMC 939204 Pershing
FG 154 9/2/2006 Hycroft Res & Dev Inc NMC 939205 Pershing
FG 155 9/2/2006 Hycroft Res & Dev Inc NMC 939206 Pershing
FG 156 9/8/2006 Hycroft Res & Dev Inc NMC 939207 Pershing
FG 157 9/8/2006 Hycroft Res & Dev Inc NMC 939208 Pershing
FG 158 9/8/2006 Hycroft Res & Dev Inc NMC 939209 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | FFF

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County

FG 159 9/8/2006 Hycroft Res & Dev Inc NMC 939210 Pershing
FG 16 9/1/2006 Hycroft Res & Dev Inc NMC 939074 Pershing
FG 160 9/8/2006 Hycroft Res & Dev Inc NMC 939211 Pershing
FG 161 9/8/2006 Hycroft Res & Dev Inc NMC 939212 Pershing
FG 162 9/8/2006 Hycroft Res & Dev Inc NMC 939213 Pershing
FG 164 9/8/2006 Hycroft Res & Dev Inc NMC 939214 Pershing
FG 165 9/8/2006 Hycroft Res & Dev Inc NMC 939215 Pershing
FG 166 9/8/2006 Hycroft Res & Dev Inc NMC 939216 Pershing
FG 167 9/8/2006 Hycroft Res & Dev Inc NMC 939217 Pershing
FG 17 9/1/2006 Hycroft Res & Dev Inc NMC 939075 Pershing
FG 173 9/11/2006 Hycroft Res & Dev Inc NMC 939218 Pershing
FG 174 9/11/2006 Hycroft Res & Dev Inc NMC 939219 Pershing
FG 175 9/11/2006 Hycroft Res & Dev Inc NMC 939220 Pershing
FG 176 9/11/2006 Hycroft Res & Dev Inc NMC 939221 Pershing
FG 177 9/11/2006 Hycroft Res & Dev Inc NMC 939222 Pershing
FG 178 9/11/2006 Hycroft Res & Dev Inc NMC 939223 Pershing
FG 179 9/11/2006 Hycroft Res & Dev Inc NMC 939224 Pershing
FG 18 9/1/2006 Hycroft Res & Dev Inc NMC 939076 Pershing
FG 180 9/2/2006 Hycroft Res & Dev Inc NMC 939225 Pershing
FG 181 9/2/2006 Hycroft Res & Dev Inc NMC 939226 Pershing
FG 182 9/2/2006 Hycroft Res & Dev Inc NMC 939227 Pershing
FG 183 9/2/2006 Hycroft Res & Dev Inc NMC 939228 Pershing
FG 184 9/2/2006 Hycroft Res & Dev Inc NMC 939229 Pershing
FG 185 9/2/2006 Hycroft Res & Dev Inc NMC 939230 Pershing
FG 186 9/2/2006 Hycroft Res & Dev Inc NMC 939231 Pershing
FG 187 9/2/2006 Hycroft Res & Dev Inc NMC 939232 Pershing
FG 188 9/2/2006 Hycroft Res & Dev Inc NMC 939233 Pershing
FG 189 9/2/2006 Hycroft Res & Dev Inc NMC 939234 Pershing
FG 19 9/1/2006 Hycroft Res & Dev Inc NMC 939077 Pershing
FG 190 9/2/2006 Hycroft Res & Dev Inc NMC 939235 Pershing
FG 191 9/2/2006 Hycroft Res & Dev Inc NMC 939236 Pershing
FG 192 9/2/2006 Hycroft Res & Dev Inc NMC 939237 Pershing
FG 193 9/2/2006 Hycroft Res & Dev Inc NMC 939238 Pershing
FG 194 9/2/2006 Hycroft Res & Dev Inc NMC 939239 Pershing
FG 195 9/2/2006 Hycroft Res & Dev Inc NMC 939240 Pershing
FG 196 9/2/2006 Hycroft Res & Dev Inc NMC 939241 Pershing
FG 197 9/2/2006 Hycroft Res & Dev Inc NMC 939242 Pershing
FG 198 9/8/2006 Hycroft Res & Dev Inc NMC 939243 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | GGG

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 199 9/8/2006 Hycroft Res & Dev Inc NMC 939244 Pershing
FG 2 9/1/2006 Hycroft Res & Dev Inc NMC 939060 Pershing
FG 20 9/1/2006 Hycroft Res & Dev Inc NMC 939078 Pershing
FG 200 9/8/2006 Hycroft Res & Dev Inc NMC 939245 Pershing
FG 201 9/8/2006 Hycroft Res & Dev Inc NMC 939246 Pershing
FG 202 9/8/2006 Hycroft Res & Dev Inc NMC 939247 Pershing
FG 21 9/1/2006 Hycroft Res & Dev Inc NMC 939079 Pershing
FG 215 9/11/2006 Hycroft Res & Dev Inc NMC 939248 Pershing
FG 216 9/11/2006 Hycroft Res & Dev Inc NMC 939249 Pershing
FG 217 9/11/2006 Hycroft Res & Dev Inc NMC 939250 Pershing
FG 218 9/11/2006 Hycroft Res & Dev Inc NMC 939251 Pershing
FG 219 9/11/2006 Hycroft Res & Dev Inc NMC 939252 Pershing
FG 22 9/1/2006 Hycroft Res & Dev Inc NMC 939080 Pershing
FG 220 9/11/2006 Hycroft Res & Dev Inc NMC 939253 Pershing
FG 221 9/11/2006 Hycroft Res & Dev Inc NMC 939254 Pershing
FG 222 9/11/2006 Hycroft Res & Dev Inc NMC 939255 Pershing
FG 227 9/2/2006 Hycroft Res & Dev Inc NMC 939260 Pershing
FG 228 9/2/2006 Hycroft Res & Dev Inc NMC 939261 Pershing
FG 229 9/2/2006 Hycroft Res & Dev Inc NMC 939262 Pershing
FG 23 9/11/2006 Hycroft Res & Dev Inc NMC 939081 Pershing
FG 230 9/2/2006 Hycroft Res & Dev Inc NMC 939263 Pershing
FG 231 9/2/2006 Hycroft Res & Dev Inc NMC 939264 Pershing
FG 232 9/2/2006 Hycroft Res & Dev Inc NMC 939265 Pershing
FG 233 9/2/2006 Hycroft Res & Dev Inc NMC 939266 Pershing
FG 234 9/2/2006 Hycroft Res & Dev Inc NMC 939267 Pershing
FG 235 9/2/2006 Hycroft Res & Dev Inc NMC 939268 Pershing
FG 236 9/2/2006 Hycroft Res & Dev Inc NMC 939269 Pershing
FG 237 9/2/2006 Hycroft Res & Dev Inc NMC 939270 Pershing
FG 238 9/2/2006 Hycroft Res & Dev Inc NMC 939271 Pershing
FG 239 9/2/2006 Hycroft Res & Dev Inc NMC 939272 Pershing
FG 24 9/11/2006 Hycroft Res & Dev Inc NMC 939082 Pershing
FG 240 9/2/2006 Hycroft Res & Dev Inc NMC 939273 Pershing
FG 241 9/2/2006 Hycroft Res & Dev Inc NMC 939274 Pershing
FG 242 9/2/2006 Hycroft Res & Dev Inc NMC 939275 Pershing
FG 243 9/2/2006 Hycroft Res & Dev Inc NMC 939276 Pershing
FG 244 9/2/2006 Hycroft Res & Dev Inc NMC 939277 Pershing
FG 245 9/8/2006 Hycroft Res & Dev Inc NMC 939278 Pershing
FG 246 9/8/2006 Hycroft Res & Dev Inc NMC 939279 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | HHH

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 247 9/8/2006 Hycroft Res & Dev Inc NMC 939280 Pershing
FG 248 9/8/2006 Hycroft Res & Dev Inc NMC 939281 Pershing
FG 249 9/8/2006 Hycroft Res & Dev Inc NMC 939282 Pershing
FG 25 9/11/2006 Hycroft Res & Dev Inc NMC 939083 Pershing
FG 26 9/11/2006 Hycroft Res & Dev Inc NMC 939084 Pershing
FG 262 9/11/2006 Hycroft Res & Dev Inc NMC 939283 Pershing
FG 263 9/11/2006 Hycroft Res & Dev Inc NMC 939284 Pershing
FG 264 9/11/2006 Hycroft Res & Dev Inc NMC 939285 Pershing
FG 265 9/11/2006 Hycroft Res & Dev Inc NMC 939286 Pershing
FG 266 9/11/2006 Hycroft Res & Dev Inc NMC 939287 Pershing
FG 267 9/11/2006 Hycroft Res & Dev Inc NMC 939288 Pershing
FG 268 9/11/2006 Hycroft Res & Dev Inc NMC 939289 Pershing
FG 269 9/11/2006 Hycroft Res & Dev Inc NMC 939290 Pershing
FG 27 9/5/2006 Hycroft Res & Dev Inc NMC 939085 Pershing
FG 276 9/1/2006 Hycroft Res & Dev Inc NMC 939297 Pershing
FG 277 9/1/2006 Hycroft Res & Dev Inc NMC 939298 Pershing
FG 278 9/1/2006 Hycroft Res & Dev Inc NMC 939299 Pershing
FG 279 9/1/2006 Hycroft Res & Dev Inc NMC 939300 Pershing
FG 28 9/5/2006 Hycroft Res & Dev Inc NMC 939086 Pershing
FG 280 9/1/2006 Hycroft Res & Dev Inc NMC 939301 Pershing
FG 281 9/1/2006 Hycroft Res & Dev Inc NMC 939302 Pershing
FG 282 9/1/2006 Hycroft Res & Dev Inc NMC 939303 Pershing
FG 283 9/1/2006 Hycroft Res & Dev Inc NMC 939304 Pershing
FG 284 9/1/2006 Hycroft Res & Dev Inc NMC 939305 Pershing
FG 285 9/1/2006 Hycroft Res & Dev Inc NMC 939306 Pershing
FG 286 9/1/2006 Hycroft Res & Dev Inc NMC 939307 Pershing
FG 287 9/1/2006 Hycroft Res & Dev Inc NMC 939308 Pershing
FG 288 9/1/2006 Hycroft Res & Dev Inc NMC 939309 Pershing
FG 289 9/1/2006 Hycroft Res & Dev Inc NMC 939310 Pershing
FG 29 9/5/2006 Hycroft Res & Dev Inc NMC 939087 Pershing
FG 290 9/1/2006 Hycroft Res & Dev Inc NMC 939311 Pershing
FG 291 9/1/2006 Hycroft Res & Dev Inc NMC 939312 Pershing
FG 292 9/1/2006 Hycroft Res & Dev Inc NMC 939313 Pershing
FG 293 9/1/2006 Hycroft Res & Dev Inc NMC 939314 Pershing
FG 294 9/10/2006 Hycroft Res & Dev Inc NMC 939315 Pershing
FG 295 9/10/2006 Hycroft Res & Dev Inc NMC 939316 Pershing
FG 296 9/10/2006 Hycroft Res & Dev Inc NMC 939317 Pershing
FG 297 9/10/2006 Hycroft Res & Dev Inc NMC 939318 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | III

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 298 9/10/2006 Hycroft Res & Dev Inc NMC 939319 Pershing
FG 299 9/10/2006 Hycroft Res & Dev Inc NMC 939320 Pershing
FG 3 9/1/2006 Hycroft Res & Dev Inc NMC 939061 Pershing
FG 30 9/1/2006 Hycroft Res & Dev Inc NMC 939088 Pershing
FG 300 9/10/2006 Hycroft Res & Dev Inc NMC 939321 Pershing
FG 301 9/10/2006 Hycroft Res & Dev Inc NMC 939322 Pershing
FG 302 9/10/2006 Hycroft Res & Dev Inc NMC 939323 Pershing
FG 31 9/1/2006 Hycroft Res & Dev Inc NMC 939089 Pershing
FG 311 9/10/2006 Hycroft Res & Dev Inc NMC 939324 Pershing
FG 312 9/10/2006 Hycroft Res & Dev Inc NMC 939325 Pershing
FG 313 9/10/2006 Hycroft Res & Dev Inc NMC 939326 Pershing
FG 314 9/10/2006 Hycroft Res & Dev Inc NMC 939327 Pershing
FG 315 9/10/2006 Hycroft Res & Dev Inc NMC 939328 Pershing
FG 316 9/10/2006 Hycroft Res & Dev Inc NMC 939329 Pershing
FG 317 9/10/2006 Hycroft Res & Dev Inc NMC 939330 Pershing
FG 318 9/10/2006 Hycroft Res & Dev Inc NMC 939331 Pershing
FG 32 9/1/2006 Hycroft Res & Dev Inc NMC 939090 Pershing
FG 325 9/1/2006 Hycroft Res & Dev Inc NMC 939338 Pershing
FG 326 9/1/2006 Hycroft Res & Dev Inc NMC 939339 Pershing
FG 327 9/1/2006 Hycroft Res & Dev Inc NMC 939340 Pershing
FG 328 9/1/2006 Hycroft Res & Dev Inc NMC 939341 Pershing
FG 329 9/1/2006 Hycroft Res & Dev Inc NMC 939342 Pershing
FG 33 9/1/2006 Hycroft Res & Dev Inc NMC 939091 Pershing
FG 330 9/1/2006 Hycroft Res & Dev Inc NMC 939343 Pershing
FG 331 9/1/2006 Hycroft Res & Dev Inc NMC 939344 Pershing
FG 332 9/1/2006 Hycroft Res & Dev Inc NMC 939345 Pershing
FG 333 9/1/2006 Hycroft Res & Dev Inc NMC 939346 Pershing
FG 334 9/1/2006 Hycroft Res & Dev Inc NMC 939347 Pershing
FG 335 9/1/2006 Hycroft Res & Dev Inc NMC 939348 Pershing
FG 336 9/1/2006 Hycroft Res & Dev Inc NMC 939349 Pershing
FG 337 9/1/2006 Hycroft Res & Dev Inc NMC 939350 Pershing
FG 338 9/1/2006 Hycroft Res & Dev Inc NMC 939351 Pershing
FG 339 9/1/2006 Hycroft Res & Dev Inc NMC 939352 Pershing
FG 34 9/1/2006 Hycroft Res & Dev Inc NMC 939092 Pershing
FG 340 9/1/2006 Hycroft Res & Dev Inc NMC 939353 Pershing
FG 341 9/1/2006 Hycroft Res & Dev Inc NMC 939354 Pershing
FG 342 9/1/2006 Hycroft Res & Dev Inc NMC 939355 Pershing
FG 343 9/10/2006 Hycroft Res & Dev Inc NMC 939356 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | JJJ

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 344 9/10/2006 Hycroft Res & Dev Inc NMC 939357 Pershing
FG 345 9/10/2006 Hycroft Res & Dev Inc NMC 939358 Pershing
FG 346 9/10/2006 Hycroft Res & Dev Inc NMC 939359 Pershing
FG 347 9/10/2006 Hycroft Res & Dev Inc NMC 939360 Pershing
FG 349 9/10/2006 Hycroft Res & Dev Inc NMC 939362 Pershing
FG 35 9/1/2006 Hycroft Res & Dev Inc NMC 939093 Pershing
FG 350 9/10/2006 Hycroft Res & Dev Inc NMC 939363 Pershing
FG 351 9/10/2006 Hycroft Res & Dev Inc NMC 939364 Pershing
FG 36 9/1/2006 Hycroft Res & Dev Inc NMC 939094 Pershing
FG 360 9/10/2006 Hycroft Res & Dev Inc NMC 939365 Pershing
FG 361 9/10/2006 Hycroft Res & Dev Inc NMC 939366 Pershing
FG 362 9/10/2006 Hycroft Res & Dev Inc NMC 939367 Pershing
FG 363 9/10/2006 Hycroft Res & Dev Inc NMC 939368 Pershing
FG 364 9/10/2006 Hycroft Res & Dev Inc NMC 939369 Pershing
FG 365 9/10/2006 Hycroft Res & Dev Inc NMC 939370 Pershing
FG 366 9/10/2006 Hycroft Res & Dev Inc NMC 939371 Pershing
FG 367 9/10/2006 Hycroft Res & Dev Inc NMC 939372 Pershing
FG 37 9/1/2006 Hycroft Res & Dev Inc NMC 939095 Pershing
FG 378 9/1/2006 Hycroft Res & Dev Inc NMC 939383 Pershing
FG 379 9/1/2006 Hycroft Res & Dev Inc NMC 939384 Pershing
FG 380 9/1/2006 Hycroft Res & Dev Inc NMC 939385 Pershing
FG 381 9/1/2006 Hycroft Res & Dev Inc NMC 939386 Pershing
FG 382 9/1/2006 Hycroft Res & Dev Inc NMC 939387 Pershing
FG 383 9/1/2006 Hycroft Res & Dev Inc NMC 939388 Pershing
FG 384 9/1/2006 Hycroft Res & Dev Inc NMC 939389 Pershing
FG 385 9/1/2006 Hycroft Res & Dev Inc NMC 939390 Pershing
FG 386 9/1/2006 Hycroft Res & Dev Inc NMC 939391 Pershing
FG 387 9/1/2006 Hycroft Res & Dev Inc NMC 939392 Pershing
FG 388 9/1/2006 Hycroft Res & Dev Inc NMC 939393 Pershing
FG 389 9/1/2006 Hycroft Res & Dev Inc NMC 939394 Pershing
FG 39 9/1/2006 Hycroft Res & Dev Inc NMC 939097 Pershing
FG 390 9/1/2006 Hycroft Res & Dev Inc NMC 939395 Pershing
FG 391 9/1/2006 Hycroft Res & Dev Inc NMC 939396 Pershing
FG 392 9/1/2006 Hycroft Res & Dev Inc NMC 939397 Pershing
FG 393 9/1/2006 Hycroft Res & Dev Inc NMC 939398 Pershing
FG 394 9/1/2006 Hycroft Res & Dev Inc NMC 939399 Pershing
FG 395 9/1/2006 Hycroft Res & Dev Inc NMC 939400 Pershing
FG 396 9/10/2006 Hycroft Res & Dev Inc NMC 939401 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | KKK

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 397 9/10/2006 Hycroft Res & Dev Inc NMC 939402 Pershing
FG 398 9/10/2006 Hycroft Res & Dev Inc NMC 939403 Pershing
FG 399 9/10/2006 Hycroft Res & Dev Inc NMC 939404 Pershing
FG 4 9/1/2006 Hycroft Res & Dev Inc NMC 939062 Pershing
FG 40 9/11/2006 Hycroft Res & Dev Inc NMC 939098 Pershing
FG 400 9/10/2006 Hycroft Res & Dev Inc NMC 939405 Pershing
FG 401 9/10/2006 Hycroft Res & Dev Inc NMC 939406 Pershing
FG 402 9/10/2006 Hycroft Res & Dev Inc NMC 939407 Pershing
FG 403 9/10/2006 Hycroft Res & Dev Inc NMC 939408 Pershing
FG 404 9/10/2006 Hycroft Res & Dev Inc NMC 939409 Pershing
FG 405 9/10/2006 Hycroft Res & Dev Inc NMC 939410 Pershing
FG 406 9/10/2006 Hycroft Res & Dev Inc NMC 939411 Pershing
FG 407 9/10/2006 Hycroft Res & Dev Inc NMC 939412 Pershing
FG 408 9/10/2006 Hycroft Res & Dev Inc NMC 939413 Pershing
FG 409 9/10/2006 Hycroft Res & Dev Inc NMC 939414 Pershing
FG 41 9/11/2006 Hycroft Res & Dev Inc NMC 939099 Pershing
FG 410 9/10/2006 Hycroft Res & Dev Inc NMC 939415 Pershing
FG 411 9/10/2006 Hycroft Res & Dev Inc NMC 939416 Pershing
FG 412 9/10/2006 Hycroft Res & Dev Inc NMC 939417 Pershing
FG 413 9/10/2006 Hycroft Res & Dev Inc NMC 939418 Pershing
FG 414 9/10/2006 Hycroft Res & Dev Inc NMC 939419 Pershing
FG 415 9/10/2006 Hycroft Res & Dev Inc NMC 939420 Pershing
FG 416 9/10/2006 Hycroft Res & Dev Inc NMC 939421 Pershing
FG 417 9/10/2006 Hycroft Res & Dev Inc NMC 939422 Pershing
FG 418 9/10/2006 Hycroft Res & Dev Inc NMC 939423 Pershing
FG 419 9/10/2006 Hycroft Res & Dev Inc NMC 939424 Pershing
FG 42 9/11/2006 Hycroft Res & Dev Inc NMC 939100 Pershing
FG 420 9/10/2006 Hycroft Res & Dev Inc NMC 939425 Pershing
FG 43 9/11/2006 Hycroft Res & Dev Inc NMC 939101 Pershing
FG 434 9/1/2006 Hycroft Res & Dev Inc NMC 939439 Pershing
FG 435 9/1/2006 Hycroft Res & Dev Inc NMC 939440 Pershing
FG 436 9/1/2006 Hycroft Res & Dev Inc NMC 939441 Pershing
FG 437 9/1/2006 Hycroft Res & Dev Inc NMC 939442 Pershing
FG 438 9/1/2006 Hycroft Res & Dev Inc NMC 939443 Pershing
FG 439 9/1/2006 Hycroft Res & Dev Inc NMC 939444 Pershing
FG 44 9/2/2006 Hycroft Res & Dev Inc NMC 939102 Pershing
FG 440 9/1/2006 Hycroft Res & Dev Inc NMC 939445 Pershing
FG 441 9/1/2006 Hycroft Res & Dev Inc NMC 939446 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | LLL

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 442 9/1/2006 Hycroft Res & Dev Inc NMC 939447 Pershing
FG 443 9/1/2006 Hycroft Res & Dev Inc NMC 939448 Pershing
FG 444 9/1/2006 Hycroft Res & Dev Inc NMC 939449 Pershing
FG 445 9/1/2006 Hycroft Res & Dev Inc NMC 939450 Pershing
FG 446 9/1/2006 Hycroft Res & Dev Inc NMC 939451 Pershing
FG 447 9/1/2006 Hycroft Res & Dev Inc NMC 939452 Pershing
FG 448 9/1/2006 Hycroft Res & Dev Inc NMC 939453 Pershing
FG 449 9/1/2006 Hycroft Res & Dev Inc NMC 939454 Pershing
FG 45 9/2/2006 Hycroft Res & Dev Inc NMC 939103 Pershing
FG 450 9/1/2006 Hycroft Res & Dev Inc NMC 939455 Pershing
FG 451 9/1/2006 Hycroft Res & Dev Inc NMC 939456 Pershing
FG 452 9/10/2006 Hycroft Res & Dev Inc NMC 939457 Pershing
FG 453 9/10/2006 Hycroft Res & Dev Inc NMC 939458 Pershing
FG 454 9/10/2006 Hycroft Res & Dev Inc NMC 939459 Pershing
FG 455 9/10/2006 Hycroft Res & Dev Inc NMC 939460 Pershing
FG 456 9/10/2006 Hycroft Res & Dev Inc NMC 939461 Pershing
FG 457 9/10/2006 Hycroft Res & Dev Inc NMC 939462 Pershing
FG 458 9/10/2006 Hycroft Res & Dev Inc NMC 939463 Pershing
FG 459 9/10/2006 Hycroft Res & Dev Inc NMC 939464 Pershing
FG 46 9/2/2006 Hycroft Res & Dev Inc NMC 939104 Pershing
FG 460 9/10/2006 Hycroft Res & Dev Inc NMC 939465 Pershing
FG 461 9/10/2006 Hycroft Res & Dev Inc NMC 939466 Pershing
FG 462 9/10/2006 Hycroft Res & Dev Inc NMC 939467 Pershing
FG 463 9/10/2006 Hycroft Res & Dev Inc NMC 939468 Pershing
FG 464 9/10/2006 Hycroft Res & Dev Inc NMC 939469 Pershing
FG 465 9/10/2006 Hycroft Res & Dev Inc NMC 939470 Pershing
FG 466 9/10/2006 Hycroft Res & Dev Inc NMC 939471 Pershing
FG 467 9/10/2006 Hycroft Res & Dev Inc NMC 939472 Pershing
FG 468 9/10/2006 Hycroft Res & Dev Inc NMC 939473 Pershing
FG 469 9/10/2006 Hycroft Res & Dev Inc NMC 939474 Pershing
FG 47 9/2/2006 Hycroft Res & Dev Inc NMC 939105 Pershing
FG 470 9/10/2006 Hycroft Res & Dev Inc NMC 939475 Pershing
FG 471 9/10/2006 Hycroft Res & Dev Inc NMC 939476 Pershing
FG 472 9/10/2006 Hycroft Res & Dev Inc NMC 939477 Pershing
FG 473 9/10/2006 Hycroft Res & Dev Inc NMC 939478 Pershing
FG 474 9/10/2006 Hycroft Res & Dev Inc NMC 939479 Pershing
FG 475 9/10/2006 Hycroft Res & Dev Inc NMC 939480 Pershing
FG 476 9/10/2006 Hycroft Res & Dev Inc NMC 939481 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | MMM

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 477 9/11/2006 Hycroft Res & Dev Inc NMC 939482 Pershing
FG 478 9/11/2006 Hycroft Res & Dev Inc NMC 939483 Pershing
FG 479 9/11/2006 Hycroft Res & Dev Inc NMC 939484 Pershing
FG 48 9/2/2006 Hycroft Res & Dev Inc NMC 939106 Pershing
FG 480 9/11/2006 Hycroft Res & Dev Inc NMC 939485 Pershing
FG 481 9/11/2006 Hycroft Res & Dev Inc NMC 939486 Pershing
FG 482 9/11/2006 Hycroft Res & Dev Inc NMC 939487 Pershing
FG 483 9/11/2006 Hycroft Res & Dev Inc NMC 939488 Pershing
FG 484 9/11/2006 Hycroft Res & Dev Inc NMC 939489 Pershing
FG 485 9/11/2006 Hycroft Res & Dev Inc NMC 939490 Pershing
FG 486 9/11/2006 Hycroft Res & Dev Inc NMC 939491 Pershing
FG 487 9/11/2006 Hycroft Res & Dev Inc NMC 939492 Pershing
FG 488 9/11/2006 Hycroft Res & Dev Inc NMC 939493 Pershing
FG 489 9/11/2006 Hycroft Res & Dev Inc NMC 939494 Pershing
FG 49 9/2/2006 Hycroft Res & Dev Inc NMC 939107 Pershing
FG 490 9/11/2006 Hycroft Res & Dev Inc NMC 939495 Pershing
FG 491 9/9/2006 Hycroft Res & Dev Inc NMC 939496 Pershing
FG 492 9/11/2006 Hycroft Res & Dev Inc NMC 939497 Pershing
FG 493 9/11/2006 Hycroft Res & Dev Inc NMC 939498 Pershing
FG 494 9/11/2006 Hycroft Res & Dev Inc NMC 939499 Pershing
FG 495 9/11/2006 Hycroft Res & Dev Inc NMC 939500 Pershing
FG 496 9/9/2006 Hycroft Res & Dev Inc NMC 939501 Pershing
FG 497 9/11/2006 Hycroft Res & Dev Inc NMC 939502 Pershing
FG 498 9/11/2006 Hycroft Res & Dev Inc NMC 939503 Pershing
FG 499 9/11/2006 Hycroft Res & Dev Inc NMC 939504 Pershing
FG 5 9/1/2006 Hycroft Res & Dev Inc NMC 939063 Pershing
FG 50 9/2/2006 Hycroft Res & Dev Inc NMC 939108 Pershing
FG 500 9/11/2006 Hycroft Res & Dev Inc NMC 939505 Pershing
FG 51 9/2/2006 Hycroft Res & Dev Inc NMC 939109 Pershing
FG 52 9/2/2006 Hycroft Res & Dev Inc NMC 939110 Pershing
FG 53 9/8/2006 Hycroft Res & Dev Inc NMC 939111 Pershing
FG 54 9/8/2006 Hycroft Res & Dev Inc NMC 939112 Pershing
FG 55 9/8/2006 Hycroft Res & Dev Inc NMC 939113 Pershing
FG 56 9/9/2006 Hycroft Res & Dev Inc NMC 939114 Pershing
FG 57 9/9/2006 Hycroft Res & Dev Inc NMC 939115 Pershing
FG 58 9/9/2006 Hycroft Res & Dev Inc NMC 939116 Pershing
FG 59 9/9/2006 Hycroft Res & Dev Inc NMC 939117 Pershing
FG 6 9/1/2006 Hycroft Res & Dev Inc NMC 939064 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | NNN

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 60 9/9/2006 Hycroft Res & Dev Inc NMC 939118 Pershing
FG 61 9/9/2006 Hycroft Res & Dev Inc NMC 939119 Pershing
FG 62 9/9/2006 Hycroft Res & Dev Inc NMC 939120 Pershing
FG 63 9/9/2006 Hycroft Res & Dev Inc NMC 939121 Pershing
FG 64 9/9/2006 Hycroft Res & Dev Inc NMC 939122 Pershing
FG 65 9/9/2006 Hycroft Res & Dev Inc NMC 939123 Pershing
FG 66 9/9/2006 Hycroft Res & Dev Inc NMC 939124 Pershing
FG 67 9/9/2006 Hycroft Res & Dev Inc NMC 939125 Pershing
FG 68 9/9/2006 Hycroft Res & Dev Inc NMC 939126 Pershing
FG 69 9/9/2006 Hycroft Res & Dev Inc NMC 939127 Pershing
FG 7 9/1/2006 Hycroft Res & Dev Inc NMC 939065 Pershing
FG 70 9/2/2006 Hycroft Res & Dev Inc NMC 939128 Pershing
FG 71 9/2/2006 Hycroft Res & Dev Inc NMC 939129 Pershing
FG 73 9/2/2006 Hycroft Res & Dev Inc NMC 939131 Pershing
FG 74 9/2/2006 Hycroft Res & Dev Inc NMC 939132 Pershing
FG 75 9/2/2006 Hycroft Res & Dev Inc NMC 939133 Pershing
FG 76 9/2/2006 Hycroft Res & Dev Inc NMC 939134 Pershing
FG 77 9/2/2006 Hycroft Res & Dev Inc NMC 939135 Pershing
FG 78 9/2/2006 Hycroft Res & Dev Inc NMC 939136 Pershing
FG 79 9/2/2006 Hycroft Res & Dev Inc NMC 939137 Pershing
FG 8 9/1/2006 Hycroft Res & Dev Inc NMC 939066 Pershing
FG 80 9/2/2006 Hycroft Res & Dev Inc NMC 939138 Pershing
FG 81 9/2/2006 Hycroft Res & Dev Inc NMC 939139 Pershing
FG 82 9/8/2006 Hycroft Res & Dev Inc NMC 939140 Pershing
FG 84 9/8/2006 Hycroft Res & Dev Inc NMC 939141 Pershing
FG 85 9/9/2006 Hycroft Res & Dev Inc NMC 939142 Pershing
FG 86 9/9/2006 Hycroft Res & Dev Inc NMC 939143 Pershing
FG 87 9/9/2006 Hycroft Res & Dev Inc NMC 939144 Pershing
FG 88 9/9/2006 Hycroft Res & Dev Inc NMC 939145 Pershing
FG 89 9/9/2006 Hycroft Res & Dev Inc NMC 939146 Pershing
FG 9 9/11/2006 Hycroft Res & Dev Inc NMC 939067 Pershing
FG 90 9/9/2006 Hycroft Res & Dev Inc NMC 939147 Pershing
FG 91 9/9/2006 Hycroft Res & Dev Inc NMC 939148 Pershing
FG 92 9/9/2006 Hycroft Res & Dev Inc NMC 939149 Pershing
FG 93 9/9/2006 Hycroft Res & Dev Inc NMC 939150 Pershing
FG 94 9/9/2006 Hycroft Res & Dev Inc NMC 939151 Pershing
FG 95 9/9/2006 Hycroft Res & Dev Inc NMC 939152 Pershing
FG 96 9/9/2006 Hycroft Res & Dev Inc NMC 939153 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | OOO

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
FG 97 9/9/2006 Hycroft Res & Dev Inc NMC 939154 Pershing
FG 98 9/9/2006 Hycroft Res & Dev Inc NMC 939155 Pershing
FG 99 9/2/2006 Hycroft Res & Dev Inc NMC 939156 Pershing
FG348 9/10/2006 Hycroft Res & Dev Inc NMC 939361 Pershing
FG38 9/1/2006 Hycroft Res & Dev Inc NMC 939096 Pershing
FG72 9/2/2006 Hycroft Res & Dev Inc NMC 939130 Pershing
Nadine #1 1/20/2007 Hrdi NMC 946619 Pershing
NC 100 8/13/2010 Hycroft Res & Dev Inc NMC1027938 Pershing
NC 101 8/13/2010 Hycroft Res & Dev Inc NMC1027939 Pershing
NC 18 8/13/2010 Hycroft Res & Dev Inc NMC1027856 Pershing
NC 19 8/13/2010 Hycroft Res & Dev Inc NMC1027857 Pershing
NC 20 8/13/2010 Hycroft Res & Dev Inc NMC1027858 Pershing
NC 21 8/13/2010 Hycroft Res & Dev Inc NMC1027859 Pershing
NC 22 8/13/2010 Hycroft Res & Dev Inc NMC1027860 Pershing
NC 23 8/13/2010 Hycroft Res & Dev Inc NMC1027861 Pershing
NC 24 8/13/2010 Hycroft Res & Dev Inc NMC1027862 Pershing
NC 25 8/13/2010 Hycroft Res & Dev Inc NMC1027863 Pershing
NC 26 8/13/2010 Hycroft Res & Dev Inc NMC1027864 Pershing
NC 27 8/13/2010 Hycroft Res & Dev Inc NMC1027865 Pershing
NC 28 8/13/2010 Hycroft Res & Dev Inc NMC1027866 Pershing
NC 29 8/13/2010 Hycroft Res & Dev Inc NMC1027867 Pershing
NC 30 8/13/2010 Hycroft Res & Dev Inc NMC1027868 Pershing
NC 51 8/13/2010 Hycroft Res & Dev Inc NMC1027889 Pershing
NC 52 8/13/2010 Hycroft Res & Dev Inc NMC1027890 Pershing
NC 53 8/13/2010 Hycroft Res & Dev Inc NMC1027891 Pershing
NC 54 8/13/2010 Hycroft Res & Dev Inc NMC1027892 Pershing
NC 55 8/13/2010 Hycroft Res & Dev Inc NMC1027893 Pershing
NC 56 8/13/2010 Hycroft Res & Dev Inc NMC1027894 Pershing
NC 57 8/13/2010 Hycroft Res & Dev Inc NMC1027895 Pershing
NC 58 8/13/2010 Hycroft Res & Dev Inc NMC1027896 Pershing
NC 59 8/13/2010 Hycroft Res & Dev Inc NMC1027897 Pershing
NC 60 8/13/2010 Hycroft Res & Dev Inc NMC1027898 Pershing
NC 61 8/13/2010 Hycroft Res & Dev Inc NMC1027899 Pershing
NC 62 8/13/2010 Hycroft Res & Dev Inc NMC1027900 Pershing
NC 63 8/13/2010 Hycroft Res & Dev Inc NMC1027901 Pershing
NC 64 8/13/2010 Hycroft Res & Dev Inc NMC1027902 Pershing
NC 65 8/13/2010 Hycroft Res & Dev Inc NMC1027903 Pershing
NC 66 8/13/2010 Hycroft Res & Dev Inc NMC1027904 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | PPP

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NC 67 8/13/2010 Hycroft Res & Dev Inc NMC1027905 Pershing
NC 68 8/13/2010 Hycroft Res & Dev Inc NMC1027906 Pershing
NC 92 8/13/2010 Hycroft Res & Dev Inc NMC1027930 Pershing
NC 93 8/13/2010 Hycroft Res & Dev Inc NMC1027931 Pershing
NC 94 8/13/2010 Hycroft Res & Dev Inc NMC1027932 Pershing
NC 95 8/13/2010 Hycroft Res & Dev Inc NMC1027933 Pershing
NC 96 8/13/2010 Hycroft Res & Dev Inc NMC1027934 Pershing
NC 97 8/13/2010 Hycroft Res & Dev Inc NMC1027935 Pershing
NC 98 8/13/2010 Hycroft Res & Dev Inc NMC1027936 Pershing
NC 99 8/13/2010 Hycroft Res & Dev Inc NMC1027937 Pershing
NFRA 10 11/8/2007 Victory Exploration Inc. NMC 977842 Pershing
NFRA 11 11/8/2007 Victory Exploration Inc. NMC 977843 Pershing
NFRA 21 11/8/2007 Victory Exploration Inc. NMC 977853 Pershing
NFRA 22 11/8/2007 Victory Exploration Inc. NMC 977854 Pershing
NFRA 25 11/8/2007 Victory Exploration Inc. NMC 977857 Pershing
NFRA 6 11/8/2007 Victory Exploration Inc. NMC 977838 Pershing
NFRA 7 11/8/2007 Victory Exploration Inc. NMC 977839 Pershing
NFRA 8 11/8/2007 Victory Exploration Inc. NMC 977840 Pershing
NFRA 9 11/8/2007 Victory Exploration Inc. NMC 977841 Pershing
RFG #120 1/24/1980 Lewis Frank W NMC 141680 Pershing
RFG #121 1/24/1980 Lewis Frank W NMC 141681 Pershing
RFG #122 1/24/1980 Lewis Frank W NMC 141682 Pershing
RFG #123 1/24/1980 Lewis Frank W NMC 141683 Pershing
RFG #124 1/24/1980 Lewis Frank W NMC 141684 Pershing
RFG #125 1/24/1980 Lewis Frank W NMC 141685 Pershing
RFG #135 1/9/1980 Lewis Frank W NMC 141692 Pershing
RFG #137 1/9/1980 Lewis Frank W NMC 141694 Pershing
RFG #139 1/9/1980 Lewis Frank W NMC 141696 Pershing
RFG #141 1/9/1980 Lewis Frank W NMC 141698 Pershing
RFG #143 1/22/1980 Lewis Frank W NMC 141700 Pershing
RFG #145 1/22/1980 Lewis Frank W NMC 141702 Pershing
RFG #147 1/22/1980 Lewis Frank W NMC 141704 Pershing
RFG #148 1/22/1980 Lewis Frank W NMC 141705 Pershing
RFG #149 1/22/1980 Lewis Frank W NMC 141706 Pershing
RFG #150 1/22/1980 Lewis Frank W NMC 141707 Pershing
RFG #151 1/22/1980 Lewis Frank W NMC 141708 Pershing
RFG #152 1/22/1980 Lewis Frank W NMC 141709 Pershing
RFG #153 1/22/1980 Lewis Frank W NMC 141710 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | QQQ

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #154 1/22/1980 Lewis Frank W NMC 141711 Pershing
RFG #155 1/22/1980 Lewis Frank W NMC 141712 Pershing
RFG #156 1/22/1980 Lewis Frank W NMC 141713 Pershing
RFG #157 1/22/1980 Lewis Frank W NMC 141714 Pershing
RFG #158 1/22/1980 Lewis Frank W NMC 141715 Pershing
RFG #159 1/22/1980 Lewis Frank W NMC 141716 Pershing
RFG #160 1/22/1980 Lewis Frank W NMC 141717 Pershing
RFG #161 1/22/1980 Lewis Frank W NMC 141718 Pershing
RFG #162 1/23/1980 Lewis Frank W NMC 141719 Pershing
RFG #163 1/23/1980 Lewis Frank W NMC 141720 Pershing
RFG #164 1/23/1980 Lewis Frank W NMC 141721 Pershing
RFG #165 1/23/1980 Lewis Frank W NMC 141722 Pershing
RFG #166 1/23/1980 Lewis Frank W NMC 141723 Pershing
RFG #167 1/23/1980 Lewis Frank W NMC 141724 Pershing
RFG #201A 12/28/1979 Lewis Frank W NMC 141726 Pershing
RFG #202A 12/28/1979 Lewis Frank W NMC 141727 Pershing
RFG #203A 12/28/1979 Lewis Frank W NMC 141728 Pershing
RFG #204A 12/28/1979 Lewis Frank W NMC 141729 Pershing
RFG #205A 12/28/1979 Lewis Frank W NMC 141730 Pershing
RFG #206A 12/28/1979 Lewis Frank W NMC 141731 Pershing
RFG #207A 12/28/1979 Lewis Frank W NMC 141732 Pershing
RFG #208A 12/28/1979 Lewis Frank W NMC 141733 Pershing
RFG #209A 12/28/1979 Lewis Frank W NMC 141734 Pershing
RFG #210A 12/28/1979 Lewis Frank W NMC 141735 Pershing
RFG #211A 12/28/1979 Lewis Frank W NMC 141736 Pershing
RFG #212A 12/28/1979 Lewis Frank W NMC 141737 Pershing
RFG #213A 12/28/1979 Lewis Frank W NMC 141738 Pershing
RFG #214A 12/28/1979 Lewis Frank W NMC 141739 Pershing
RFG #215A 12/28/1979 Lewis Frank W NMC 141740 Pershing
RFG #216A 12/28/1979 Lewis Frank W NMC 141741 Pershing
RFG #217A 12/28/1979 Lewis Frank W NMC 141742 Pershing
RFG #218A 12/28/1979 Lewis Frank W NMC 141743 Pershing
RFG #219A 12/28/1979 Lewis Frank W NMC 141744 Pershing
RFG #220A 12/28/1979 Lewis Frank W NMC 141745 Pershing
RFG #221A 12/28/1979 Lewis Frank W NMC 141746 Pershing
RFG #222A 12/28/1979 Lewis Frank W NMC 141747 Pershing
RFG #223A 12/28/1979 Lewis Frank W NMC 141748 Pershing
RFG #225A 1/7/1980 Lewis Frank W NMC 141750 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | RRR

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
RFG #226A 1/7/1980 Lewis Frank W NMC 141751 Pershing
RFG #227A 1/7/1980 Lewis Frank W NMC 141752 Pershing
RFG #228A 1/7/1980 Lewis Frank W NMC 141754 Pershing
RFG #229 1/25/1980 Lewis Frank W NMC 141755 Pershing
RFG #229A 1/7/1980 Lewis Frank W NMC 141756 Pershing
RFG #230A 1/7/1980 Lewis Frank W NMC 141758 Pershing
RFG #231 1/25/1980 Lewis Frank W NMC 141759 Pershing
RFG #231A 1/7/1980 Lewis Frank W NMC 141760 Pershing
RFG #232A 1/7/1980 Lewis Frank W NMC 141761 Pershing
RFG #233 1/26/1980 Lewis Frank W NMC 141762 Pershing
RFG #233A 1/7/1980 Lewis Frank W NMC 141763 Pershing
RFG #234A 1/7/1980 Lewis Frank W NMC 141765 Pershing
RFG #235A 1/7/1980 Lewis Frank W NMC 141767 Pershing
RFG #236A 1/8/1980 Lewis Frank W NMC 141769 Pershing
RFG #237A 1/8/1980 Lewis Frank W NMC 141771 Pershing
RFG #238A 1/8/1980 Lewis Frank W NMC 141772 Pershing
RFG #239A 1/8/1980 Lewis Frank W NMC 141773 Pershing
RFG #240A 1/8/1980 Lewis Frank W NMC 141774 Pershing
RFG #241A 1/8/1980 Lewis Frank W NMC 141775 Pershing
RFG #251 1/11/1980 Lewis Frank W NMC 141777 Pershing
RFG #253 1/11/1980 Lewis Frank W NMC 141779 Pershing
RFG #255 1/11/1980 Hrdi NMC 141781 Pershing
RFG 107 5/20/2006 Hycroft Res & Dev Inc NMC 932890 Pershing
RFG 109 5/20/2006 Hycroft Res & Dev Inc NMC 932892 Pershing
RFG 111 5/20/2006 Hycroft Res & Dev Inc NMC 932894 Pershing
RFG 113 5/20/2006 Hycroft Res & Dev Inc NMC 932896 Pershing
RFG 114 5/20/2006 Hycroft Res & Dev Inc NMC 932897 Pershing
RFG 115 5/20/2006 Hycroft Res & Dev Inc NMC 932898 Pershing
RFG 116 5/20/2006 Hycroft Res & Dev Inc NMC 932899 Pershing
RFG 117 5/20/2006 Hycroft Res & Dev Inc NMC 932900 Pershing
RFG 118 5/20/2006 Hycroft Res & Dev Inc NMC 932901 Pershing
RFG 119 5/20/2006 Hycroft Res & Dev Inc NMC 932902 Pershing
RFG 142 5/20/2006 Hycroft Res & Dev Inc NMC 932908 Pershing
RFG 144 5/20/2006 Hycroft Res & Dev Inc NMC 932909 Pershing
RFG 146 5/20/2006 Hycroft Res & Dev Inc NMC 932910 Pershing
RFG#224A 1/7/1980 Lewis Frank W NMC 141749 Pershing
SH 169 4/24/2008 Hycroft Res & Dev Inc NMC 990822 Pershing
SH 170 4/24/2008 Hycroft Res & Dev Inc NMC 990823 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | SSS

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 171 4/24/2008 Hycroft Res & Dev Inc NMC 990824 Pershing
SH 172 4/24/2008 Hycroft Res & Dev Inc NMC 990825 Pershing
SH 173 4/24/2008 Hycroft Res & Dev Inc NMC 990826 Pershing
SH 174 4/24/2008 Hycroft Res & Dev Inc NMC 990827 Pershing
SH 175 4/24/2008 Hycroft Res & Dev Inc NMC 990828 Pershing
SH 176 4/24/2008 Hycroft Res & Dev Inc NMC990829 Pershing
SH 177 4/24/2008 Hycroft Res & Dev Inc NMC 990830 Pershing
SH 178 4/24/2008 Hycroft Res & Dev Inc NMC 990831 Pershing
SH 179 4/24/2008 Hycroft Res & Dev Inc NMC 990832 Pershing
SH 180 4/24/2008 Hycroft Res & Dev Inc NMC 990833 Pershing
SH 181 4/24/2008 Hycroft Res & Dev Inc NMC 990834 Pershing
SH 182 4/24/2008 Hycroft Res & Dev Inc NMC 990835 Pershing
SH 183 4/24/2008 Hycroft Res & Dev Inc NMC 990836 Pershing
SH 184 4/24/2008 Hycroft Res & Dev Inc NMC 990837 Pershing
SH 185 4/24/2008 Hycroft Res & Dev Inc NMC 990838 Pershing
SH 186 4/24/2008 Hycroft Res & Dev Inc NMC 990839 Pershing
SH 187 4/24/2008 Hycroft Res & Dev Inc NMC 990840 Pershing
SH 188 4/24/2008 Hycroft Res & Dev Inc NMC 990841 Pershing
SH 189 4/24/2008 Hycroft Res & Dev Inc NMC 990842 Pershing
SH 190 4/24/2008 Hycroft Res & Dev Inc NMC 990843 Pershing
SH 191 4/24/2008 Hycroft Res & Dev Inc NMC 990844 Pershing
SH 192 4/24/2008 Hycroft Res & Dev Inc NMC 990845 Pershing
SH 193 4/24/2008 Hycroft Res & Dev Inc NMC 990846 Pershing
SH 194 4/24/2008 Hycroft Res & Dev Inc NMC 990847 Pershing
SH 195 4/24/2008 Hycroft Res & Dev Inc NMC 990848 Pershing
SH 196 4/24/2008 Hycroft Res & Dev Inc NMC 990849 Pershing
SH 197 4/24/2008 Hycroft Res & Dev Inc NMC990850 Pershing
SH 198 4/24/2008 Hycroft Res & Dev Inc NMC 990851 Pershing
SH 199 4/24/2008 Hycroft Res & Dev Inc NMC 990852 Pershing
SH 200 4/24/2008 Hycroft Res & Dev Inc NMC 990853 Pershing
SH 201 4/24/2008 Hycroft Res & Dev Inc NMC 990854 Pershing
SH 202 4/24/2008 Hycroft Res & Dev Inc NMC 990855 Pershing
SH 203 4/24/2008 Hycroft Res & Dev Inc NMC 990856 Pershing
SH 204 4/24/2008 Hycroft Res & Dev Inc NMC 990857 Pershing
SH 205 4/24/2008 Hycroft Res & Dev Inc NMC 990858 Pershing
SH 206 4/24/2008 Hycroft Res & Dev Inc NMC 990859 Pershing
SH 207 4/24/2008 Hycroft Res & Dev Inc NMC 990860 Pershing
SH 208 4/24/2008 Hycroft Res & Dev Inc NMC 990861 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | TTT

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 209 4/24/2008 Hycroft Res & Dev Inc NMC 990862 Pershing
SH 210 4/24/2008 Hycroft Res & Dev Inc NMC 990863 Pershing
SH 211 4/24/2008 Hycroft Res & Dev Inc NMC 990864 Pershing
SH 212 4/24/2008 Hycroft Res & Dev Inc NMC 990865 Pershing
SH 213 4/24/2008 Hycroft Res & Dev Inc NMC 990866 Pershing
SH 214 4/24/2008 Hycroft Res & Dev Inc NMC 990867 Pershing
SH 215 4/24/2008 Hycroft Res & Dev Inc NMC 990868 Pershing
SH 216 4/24/2008 Hycroft Res & Dev Inc NMC 990869 Pershing
SH 217 4/24/2008 Hycroft Res & Dev Inc NMC 990870 Pershing
SH 218 4/24/2008 Hycroft Res & Dev Inc NMC 990871 Pershing
SH 219 4/24/2008 Hycroft Res & Dev Inc NMC 990872 Pershing
SH 220 4/24/2008 Hycroft Res & Dev Inc NMC 990873 Pershing
SH 221 4/24/2008 Hycroft Res & Dev Inc NMC 990874 Pershing
SH 222 4/24/2008 Hycroft Res & Dev Inc NMC 990875 Pershing
SH 223 4/24/2008 Hycroft Res & Dev Inc NMC 990876 Pershing
SH 224 4/24/2008 Hycroft Res & Dev Inc NMC 990877 Pershing
SH 225 4/24/2008 Hycroft Res & Dev Inc NMC 990878 Pershing
SH 226 4/24/2008 Hycroft Res & Dev Inc NMC 990879 Pershing
SH 227 4/24/2008 Hycroft Res & Dev Inc NMC 990880 Pershing
SH 228 4/24/2008 Hycroft Res & Dev Inc NMC 990881 Pershing
SH 229 4/24/2008 Hycroft Res & Dev Inc NMC 990882 Pershing
SH 230 4/24/2008 Hycroft Res & Dev Inc NMC 990883 Pershing
SH 231 4/23/2008 Hycroft Res & Dev Inc NMC 990884 Pershing
SH 235 4/23/2008 Hycroft Res & Dev Inc NMC 990888 Pershing
SH 236 4/23/2008 Hycroft Res & Dev Inc NMC 990889 Pershing
SH 237 4/23/2008 Hycroft Res & Dev Inc NMC 990890 Pershing
SH 238 4/23/2008 Hycroft Res & Dev Inc NMC 990891 Pershing
SH 239 4/23/2008 Hycroft Res & Dev Inc NMC 990892 Pershing
SH 240 4/23/2008 Hycroft Res & Dev Inc NMC 990893 Pershing
SH 241 4/23/2008 Hycroft Res & Dev Inc NMC 990894 Pershing
SH 244 4/23/2008 Hycroft Res & Dev Inc NMC 990895 Pershing
SH 245 4/23/2008 Hycroft Res & Dev Inc NMC 990896 Pershing
SH 247 4/23/2008 Hycroft Res & Dev Inc NMC 990900 Pershing
SH 249 4/23/2008 Hycroft Res & Dev Inc NMC 990905 Pershing
SH 250 4/23/2008 Hycroft Res & Dev Inc NMC 990901 Pershing
SH 251 4/23/2008 Hycroft Res & Dev Inc NMC 990902 Pershing
SH 252 4/25/2008 Hycroft Res & Dev Inc NMC 990903 Pershing
SH 253 4/25/2008 Hycroft Res & Dev Inc NMC 990904 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | UUU

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 254 4/25/2008 Hycroft Res & Dev Inc NMC 990906 Pershing
SH 255 4/25/2008 Hycroft Res & Dev Inc NMC 990907 Pershing
SH 256 4/25/2008 Hycroft Res & Dev Inc NMC 990908 Pershing
SH 257 4/25/2008 Hycroft Res & Dev Inc NMC 990909 Pershing
SH 258 4/25/2008 Hycroft Res & Dev Inc NMC 990910 Pershing
SH 259 4/25/2008 Hycroft Res & Dev Inc NMC 990911 Pershing
SH 260 4/25/2008 Hycroft Res & Dev Inc NMC 990912 Pershing
SH 261 4/25/2008 Hycroft Res & Dev Inc NMC 990913 Pershing
SH 262 4/25/2008 Hycroft Res & Dev Inc NMC 990914 Pershing
SH 263 4/25/2008 Hycroft Res & Dev Inc NMC 990915 Pershing
SH 265 4/25/2008 Hycroft Res & Dev Inc NMC 990917 Pershing
SH 266 4/25/2008 Hycroft Res & Dev Inc NMC 990918 Pershing
SH 269 4/23/2008 Hycroft Res & Dev Inc NMC 990921 Pershing
SH 270 4/23/2008 Hycroft Res & Dev Inc NMC 990922 Pershing
SH 271 4/23/2008 Hycroft Res & Dev Inc NMC 990923 Pershing
SH 272 4/23/2008 Hycroft Res & Dev Inc NMC 990924 Pershing
SH 273 4/23/2008 Hycroft Res & Dev Inc NMC 990925 Pershing
SH 274 4/23/2008 Hycroft Res & Dev Inc NMC 990926 Pershing
SH 276 4/23/2008 Hycroft Res & Dev Inc NMC 990928 Pershing
SH 277 4/23/2008 Hycroft Res & Dev Inc NMC 990929 Pershing
SH 278 4/22/2008 Hycroft Res & Dev Inc NMC 990930 Pershing
SH 279 4/22/2008 Hycroft Res & Dev Inc NMC 990931 Pershing
SH 280 4/22/2008 Hycroft Res & Dev Inc NMC 990932 Pershing
SH 281 4/22/2008 Hycroft Res & Dev Inc NMC 990933 Pershing
SH 282 4/22/2008 Hycroft Res & Dev Inc NMC 990934 Pershing
SH 284 4/22/2008 Hycroft Res & Dev Inc NMC 990936 Pershing
SH 285 4/22/2008 Hycroft Res & Dev Inc NMC 990937 Pershing
SH 286 4/22/2008 Hycroft Res & Dev Inc NMC 990938 Pershing
SH 288 4/22/2008 Hycroft Res & Dev Inc NMC 990940 Pershing
SH 290 4/22/2008 Hycroft Res & Dev Inc NMC990942 Pershing
SH 291 4/22/2008 Hycroft Res & Dev Inc NMC 990943 Pershing
SH 292 4/22/2008 Hycroft Res & Dev Inc NMC 990944 Pershing
SH 293 4/22/2008 Hycroft Res & Dev Inc NMC 990945 Pershing
SH 294 4/22/2008 Hycroft Res & Dev Inc NMC 990946 Pershing
SH 296 4/22/2008 Hycroft Res & Dev Inc NMC 990948 Pershing
SH 297 4/22/2008 Hycroft Res & Dev Inc NMC 990956 Pershing
SH 298 4/22/2008 Hycroft Res & Dev Inc NMC 990957 Pershing
SH 300 4/22/2008 Hycroft Res & Dev Inc NMC 990950 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | VVV

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 301 4/22/2008 Hycroft Res & Dev Inc NMC 990951 Pershing
SH 303 4/22/2008 Hycroft Res & Dev Inc NMC 990953 Pershing
SH 304 4/22/2008 Hycroft Res & Dev Inc NMC 990954 Pershing
SH 305 4/22/2008 Hycroft Res & Dev Inc NMC 990955 Pershing
SH 307 4/22/2008 Hycroft Res & Dev Inc NMC 990959 Pershing
SH 308 4/22/2008 Hycroft Res & Dev Inc NMC 990960 Pershing
SH 309 4/22/2008 Hycroft Res & Dev Inc NMC 990961 Pershing
SH 310 4/22/2008 Hycroft Res & Dev Inc NMC 990962 Pershing
SH 311 4/22/2008 Hycroft Res & Dev Inc NMC 990963 Pershing
SH 312 4/22/2008 Hycroft Res & Dev Inc NMC 990964 Pershing
SH 313 4/22/2008 Hycroft Res & Dev Inc NMC 990965 Pershing
SH 314 4/22/2008 Hycroft Res & Dev Inc NMC 990966 Pershing
SH 315 4/22/2008 Hycroft Res & Dev Inc NMC 990967 Pershing
SH 316 4/22/2008 Hycroft Res & Dev Inc NMC 990968 Pershing
SH 317 4/22/2008 Hycroft Res & Dev Inc NMC 990969 Pershing
SH 318 4/22/2008 Hycroft Res & Dev Inc NMC 990970 Pershing
SH 319 4/22/2008 Hycroft Res & Dev Inc NMC 990971 Pershing
SH 320 4/22/2008 Hycroft Res & Dev Inc NMC 990972 Pershing
SH 321 4/22/2008 Hycroft Res & Dev Inc NMC 990973 Pershing
SH 323 4/22/2008 Hycroft Res & Dev Inc NMC 990975 Pershing
SH 324 4/22/2008 Hycroft Res & Dev Inc NMC 990976 Pershing
SH 325 4/22/2008 Hycroft Res & Dev Inc NMC 990977 Pershing
SH 326 4/22/2008 Hycroft Res & Dev Inc NMC 990978 Pershing
SH 327 4/22/2008 Hycroft Res & Dev Inc NMC 990979 Pershing
SH 328 4/22/2008 Hycroft Res & Dev Inc NMC 990980 Pershing
SH 334 4/22/2008 Hycroft Res & Dev Inc NMC 990986 Pershing
SH 335 4/22/2008 Hycroft Res & Dev Inc NMC 990987 Pershing
SH 336 4/22/2008 Hycroft Res & Dev Inc NMC 990988 Pershing
SH 337 4/22/2008 Hycroft Res & Dev Inc NMC 990989 Pershing
SH 338 4/22/2008 Hycroft Res & Dev Inc NMC 990990 Pershing
SH 339 4/22/2008 Hycroft Res & Dev Inc NMC 990991 Pershing
SH 340 4/22/2008 Hycroft Res & Dev Inc NMC 990992 Pershing
SH 341 4/22/2008 Hycroft Res & Dev Inc NMC 990993 Pershing
SH 342 4/22/2008 Hycroft Res & Dev Inc NMC 990994 Pershing
SH 343 4/22/2008 Hycroft Res & Dev Inc NMC 990995 Pershing
SH 345 4/22/2008 Hycroft Res & Dev Inc NMC 990997 Pershing
SH 346 4/21/2008 Hycroft Res & Dev Inc NMC 990998 Pershing
SH 347 4/21/2008 Hycroft Res & Dev Inc NMC 990999 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | WWW

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 358 4/21/2008 Hycroft Res & Dev Inc NMC 991010 Pershing
SH 359 4/21/2008 Hycroft Res & Dev Inc NMC 991011 Pershing
SH 360 4/21/2008 Hycroft Res & Dev Inc NMC 991012 Pershing
SH 361 4/21/2008 Hycroft Res & Dev Inc NMC 991013 Pershing
SH 362 4/21/2008 Hycroft Res & Dev Inc NMC 991014 Pershing
SH 363 4/21/2008 Hycroft Res & Dev Inc NMC 991015 Pershing
SH 364 4/21/2008 Hycroft Res & Dev Inc NMC 991016 Pershing
SH 365 4/21/2008 Hycroft Res & Dev Inc NMC 991017 Pershing
SH 366 4/21/2008 Hycroft Res & Dev Inc NMC 991018 Pershing
SH 367 4/21/2008 Hycroft Res & Dev Inc NMC 991019 Pershing
SH 368 4/21/2008 Hycroft Res & Dev Inc NMC 991020 Pershing
SH 370 4/21/2008 Hycroft Res & Dev Inc NMC 991022 Pershing
SH 387 4/21/2008 Hycroft Res & Dev Inc NMC 991039 Pershing
SH 388 4/21/2008 Hycroft Res & Dev Inc NMC 991040 Pershing
SH 389 4/21/2008 Hycroft Res & Dev Inc NMC 991041 Pershing
SH 390 4/21/2008 Hycroft Res & Dev Inc NMC 991042 Pershing
SH 391 4/21/2008 Hycroft Res & Dev Inc NMC 991043 Pershing
SH 392 4/21/2008 Hycroft Res & Dev Inc NMC 991044 Pershing
SH 393 4/21/2008 Hycroft Res & Dev Inc NMC 991045 Pershing
SH 394 4/21/2008 Hycroft Res & Dev Inc NMC 991046 Pershing
SH 395 4/21/2008 Hycroft Res & Dev Inc NMC 991047 Pershing
SH 412 4/21/2008 Hycroft Res & Dev Inc NMC 991064 Pershing
SH 413 4/21/2008 Hycroft Res & Dev Inc NMC 991065 Pershing
SH 414 4/21/2008 Hycroft Res & Dev Inc NMC 991066 Pershing
SH 415 4/21/2008 Hycroft Res & Dev Inc NMC 991067 Pershing
SH 416 4/21/2008 Hycroft Res & Dev Inc NMC 991068 Pershing
SH 417 4/21/2008 Hycroft Res & Dev Inc NMC 991069 Pershing
SH 435 4/21/2008 Hycroft Res & Dev Inc NMC 991210 Pershing
SH 436 4/21/2008 Hycroft Res & Dev Inc NMC 991087 Pershing
SH 437 4/21/2008 Hycroft Res & Dev Inc NMC 991088 Pershing
SH 438 4/21/2008 Hycroft Res & Dev Inc NMC 991089 Pershing
SH 461 4/22/2008 Hycroft Res & Dev Inc NMC 991112 Pershing
SH 462 4/22/2008 Hycroft Res & Dev Inc NMC 991113 Pershing
SH 463 4/22/2008 Hycroft Res & Dev Inc NMC 991114 Pershing
SH 468 4/22/2008 Hycroft Res & Dev Inc NMC 991119 Pershing
SH 469 4/22/2008 Hycroft Res & Dev Inc NMC 991120 Pershing
SH 470 4/22/2008 Hycroft Res & Dev Inc NMC 991121 Pershing
SH 471 4/22/2008 Hycroft Res & Dev Inc NMC 991122 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | XXX

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 473 4/22/2008 Hycroft Res & Dev Inc NMC 991124 Pershing
SH 474 4/22/2008 Hycroft Res & Dev Inc NMC 991125 Pershing
SH 477 4/22/2008 Hycroft Res & Dev Inc NMC 991128 Pershing
SH 478 4/22/2008 Hycroft Res & Dev Inc NMC 991129 Pershing
SH 480 4/22/2008 Hycroft Res & Dev Inc NMC 991131 Pershing
SH 481 4/22/2008 Hycroft Res & Dev Inc NMC 991132 Pershing
SH 482 4/22/2008 Hycroft Res & Dev Inc NMC 991133 Pershing
SH 483 4/22/2008 Hycroft Res & Dev Inc NMC 991134 Pershing
SH 485 4/22/2008 Hycroft Res & Dev Inc NMC 991136 Pershing
SH 486 4/22/2008 Hycroft Res & Dev Inc NMC 991137 Pershing
SH 488 4/22/2008 Hycroft Res & Dev Inc NMC 991139 Pershing
SH 489 4/22/2008 Hycroft Res & Dev Inc NMC 991140 Pershing
SH 490 4/22/2008 Hycroft Res & Dev Inc NMC991141 Pershing
SH 491 4/22/2008 Hycroft Res & Dev Inc NMC 991142 Pershing
SH 492 4/22/2008 Hycroft Res & Dev Inc NMC 991143 Pershing
SH 493 4/22/2008 Hycroft Res & Dev Inc NMC 991144 Pershing
SH 497 4/22/2008 Hycroft Res & Dev Inc NMC 991148 Pershing
SH 498 4/22/2008 Hycroft Res & Dev Inc NMC 991149 Pershing
SH 499 4/22/2008 Hycroft Res & Dev Inc NMC 991150 Pershing
SH 500 4/22/2008 Hycroft Res & Dev Inc NMC 991151 Pershing
SH 501 4/22/2008 Hycroft Res & Dev Inc NMC 991152 Pershing
SH 502 4/22/2008 Hycroft Res & Dev Inc NMC 991153 Pershing
SH 503 4/22/2008 Hycroft Res & Dev Inc NMC 991154 Pershing
SH 504 4/22/2008 Hycroft Res & Dev Inc NMC 991155 Pershing
SH 505 4/22/2008 Hycroft Res & Dev Inc NMC 991156 Pershing
SH 507 4/22/2008 Hycroft Res & Dev Inc NMC 991158 Pershing
SH 508 4/22/2008 Hycroft Res & Dev Inc NMC 991159 Pershing
SH 509 4/22/2008 Hycroft Res & Dev Inc NMC 991160 Pershing
SH 510 4/22/2008 Hycroft Res & Dev Inc NMC 991161 Pershing
SH 511 4/22/2008 Hycroft Res & Dev Inc NMC 991162 Pershing
SH 512 4/22/2008 Hycroft Res & Dev Inc NMC 991163 Pershing
SH 513 4/22/2008 Hycroft Res & Dev Inc NMC 991164 Pershing
SH 514 4/22/2008 Hycroft Res & Dev Inc NMC 991165 Pershing
SH 515 4/22/2008 Hycroft Res & Dev Inc NMC 991166 Pershing
SH 516 4/22/2008 Hycroft Res & Dev Inc NMC 991167 Pershing
SH 517 4/22/2008 Hycroft Res & Dev Inc NMC 991168 Pershing
SH 519 4/22/2008 Hycroft Res & Dev Inc NMC 991170 Pershing
SH 520 4/22/2008 Hycroft Res & Dev Inc NMC 991171 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | YYY

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 521 4/22/2008 Hycroft Res & Dev Inc NMC 991172 Pershing
SH 523 4/22/2008 Hycroft Res & Dev Inc NMC 991174 Pershing
SH 524 4/22/2008 Hycroft Res & Dev Inc NMC 991175 Pershing
SH 526 4/22/2008 Hycroft Res & Dev Inc NMC 991177 Pershing
SH 528 4/22/2008 Hycroft Res & Dev Inc NMC 991179 Pershing
SH 529 4/22/2008 Hycroft Res & Dev Inc NMC 991180 Pershing
SH 530 4/22/2008 Hycroft Res & Dev Inc NMC 991181 Pershing
SH 531 4/22/2008 Hycroft Res & Dev Inc NMC 991182 Pershing
SH 532 4/22/2008 Hycroft Res & Dev Inc NMC 991183 Pershing
SH 533 4/22/2008 Hycroft Res & Dev Inc NMC 991184 Pershing
SH 534 4/22/2008 Hycroft Res & Dev Inc NMC 991185 Pershing
SH 535 4/22/2008 Hycroft Res & Dev Inc NMC 991186 Pershing
SH 536 4/22/2008 Hycroft Res & Dev Inc NMC 991187 Pershing
SH 537 4/22/2008 Hycroft Res & Dev Inc NMC 991188 Pershing
SH 538 4/22/2008 Hycroft Res & Dev Inc NMC 991189 Pershing
SH 539 4/22/2008 Hycroft Res & Dev Inc NMC 991190 Pershing
SH 540 4/22/2008 Hycroft Res & Dev Inc NMC 991191 Pershing
SH 541 4/22/2008 Hycroft Res & Dev Inc NMC 991192 Pershing
SH 542 4/22/2008 Hycroft Res & Dev Inc NMC 991193 Pershing
SH 543 4/22/2008 Hycroft Res & Dev Inc NMC 991194 Pershing
SH 544 4/22/2008 Hycroft Res & Dev Inc NMC 991195 Pershing
SH 545 4/22/2008 Hycroft Res & Dev Inc NMC 991196 Pershing
SH 546 4/22/2008 Hycroft Res & Dev Inc NMC 991197 Pershing
SH 548 4/22/2008 Hycroft Res & Dev Inc NMC 991199 Pershing
SH 549 4/22/2008 Hycroft Res & Dev Inc NMC 991200 Pershing
SH 550 4/22/2008 Hycroft Res & Dev Inc NMC 991201 Pershing
SH 551 4/22/2008 Hycroft Res & Dev Inc NMC 991202 Pershing
SH 552 4/22/2008 Hycroft Res & Dev Inc NMC 991203 Pershing
SH 553 4/22/2008 Hycroft Res & Dev Inc NMC 991204 Pershing
SH 554 4/22/2008 Hycroft Res & Dev Inc NMC 991205 Pershing
SH 555 4/22/2008 Hycroft Res & Dev Inc NMC 991206 Pershing
SH 556 4/22/2008 Hycroft Res & Dev Inc NMC 991207 Pershing
SH 557 4/22/2008 Hycroft Res & Dev Inc NMC 991208 Pershing
SH 558 3/13/2010 Hycroft Res & Dev Inc NMC 1022749 Pershing
SH 559 3/13/2010 Hycroft Res & Dev Inc NMC 1022750 Pershing
SH 560 3/13/2010 Hycroft Res & Dev Inc NMC 1022751 Pershing
SH 561 3/13/2010 Hycroft Res & Dev Inc NMC 1022752 Pershing
SH 562 3/13/2010 Hycroft Res & Dev Inc NMC 1022753 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | AAAA

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 563 3/13/2010 Hycroft Res & Dev Inc NMC 1022754 Pershing
SH 564 3/13/2010 Hycroft Res & Dev Inc NMC 1022755 Pershing
SH 565 3/13/2010 Hycroft Res & Dev Inc NMC 1022756 Pershing
SH 566 3/13/2010 Hycroft Res & Dev Inc NMC 1022757 Pershing
SH 567 3/13/2010 Hycroft Res & Dev Inc NMC 1022758 Pershing
SH 568 3/13/2010 Hycroft Res & Dev Inc NMC 1022759 Pershing
SH 569 3/13/2010 Hycroft Res & Dev Inc NMC 1022760 Pershing
SH 570 3/13/2010 Hycroft Res & Dev Inc NMC 1022761 Pershing
SH 571 3/13/2010 Hycroft Res & Dev Inc NMC 1022762 Pershing
SH 572 3/13/2010 Hycroft Res & Dev Inc NMC 1022763 Pershing
SH 573 3/13/2010 Hycroft Res & Dev Inc NMC 1022764 Pershing
SH 574 3/13/2010 Hycroft Res & Dev Inc NMC 1022765 Pershing
SH 575 3/13/2010 Hycroft Res & Dev Inc NMC 1022766 Pershing
SH 576 3/13/2010 Hycroft Res & Dev Inc NMC 1022767 Pershing
SH 577 3/13/2010 Hycroft Res & Dev Inc NMC 1022768 Pershing
SH 578 3/13/2010 Hycroft Res & Dev Inc NMC 1022769 Pershing
SH 579 3/13/2010 Hycroft Res & Dev Inc NMC 1022770 Pershing
SH 580 3/13/2010 Hycroft Res & Dev Inc NMC 1022771 Pershing
SH 581 3/13/2010 Hycroft Res & Dev Inc NMC 1022772 Pershing
SH 582 3/13/2010 Hycroft Res & Dev Inc NMC 1022773 Pershing
SH 583 3/13/2010 Hycroft Res & Dev Inc NMC 1022774 Pershing
SH 584 3/13/2010 Hycroft Res & Dev Inc NMC 1022775 Pershing
SH 585 3/13/2010 Hycroft Res & Dev Inc NMC 1022776 Pershing
SH 586 3/13/2010 Hycroft Res & Dev Inc NMC 1022777 Pershing
SH 587 3/13/2010 Hycroft Res & Dev Inc NMC 1022778 Pershing
SH 588 3/13/2010 Hycroft Res & Dev Inc NMC 1022779 Pershing
SH 589 3/13/2010 Hycroft Res & Dev Inc NMC 1022780 Pershing
SH 590 3/13/2010 Hycroft Res & Dev Inc NMC 1022781 Pershing
SH 591 3/13/2010 Hycroft Res & Dev Inc NMC 1022782 Pershing
SH 592 3/13/2010 Hycroft Res & Dev Inc NMC 1022783 Pershing
SH 593 3/13/2010 Hycroft Res & Dev Inc NMC 1022784 Pershing
SH 594 3/13/2010 Hycroft Res & Dev Inc NMC 1022785 Pershing
SH 595 3/13/2010 Hycroft Res & Dev Inc NMC 1022786 Pershing
SH 596 3/13/2010 Hycroft Res & Dev Inc NMC 1022787 Pershing
SH 597 3/13/2010 Hycroft Res & Dev Inc NMC 1022788 Pershing
SH 598 3/13/2010 Hycroft Res & Dev Inc NMC 1022789 Pershing
SH 599 3/13/2010 Hycroft Res & Dev Inc NMC 1022790 Pershing
SH 600 3/13/2010 Hycroft Res & Dev Inc NMC 1022791 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | AAAA

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 601 3/13/2010 Hycroft Res & Dev Inc NMC 1022792 Pershing
SH 602 3/13/2010 Hycroft Res & Dev Inc NMC 1022793 Pershing
SH 603 3/13/2010 Hycroft Res & Dev Inc NMC 1022794 Pershing
SH 604 3/13/2010 Hycroft Res & Dev Inc NMC 1022795 Pershing
SH 605 3/13/2010 Hycroft Res & Dev Inc NMC 1022796 Pershing
SH 606 3/13/2010 Hycroft Res & Dev Inc NMC 1022797 Pershing
SH 607 3/13/2010 Hycroft Res & Dev Inc NMC 1022798 Pershing
SH 608 3/13/2010 Hycroft Res & Dev Inc NMC 1022799 Pershing
SH 609 3/13/2010 Hycroft Res & Dev Inc NMC 1022800 Pershing
SH 610 3/13/2010 Hycroft Res & Dev Inc NMC 1022801 Pershing
SH 611 3/13/2010 Hycroft Res & Dev Inc NMC 1022802 Pershing
SH 612 3/13/2010 Hycroft Res & Dev Inc NMC 1022803 Pershing
SH 613 3/13/2010 Hycroft Res & Dev Inc NMC 1022804 Pershing
SH 614 3/13/2010 Hycroft Res & Dev Inc NMC 1022805 Pershing
SH 615 3/13/2010 Hycroft Res & Dev Inc NMC 1022806 Pershing
SH 616 3/13/2010 Hycroft Res & Dev Inc NMC 1022807 Pershing
SH 617 3/13/2010 Hycroft Res & Dev Inc NMC 1022808 Pershing
SH 618 3/13/2010 Hycroft Res & Dev Inc NMC 1022809 Pershing
SH 619 3/13/2010 Hycroft Res & Dev Inc NMC 1022810 Pershing
SH 620 3/13/2010 Hycroft Res & Dev Inc NMC 1022811 Pershing
SH 621 3/13/2010 Hycroft Res & Dev Inc NMC 1022812 Pershing
SH 622 3/13/2010 Hycroft Res & Dev Inc NMC 1022813 Pershing
SH 623 3/13/2010 Hycroft Res & Dev Inc NMC 1022814 Pershing
SH 624 3/13/2010 Hycroft Res & Dev Inc NMC 1022815 Pershing
SH 625 3/13/2010 Hycroft Res & Dev Inc NMC 1022816 Pershing
SH 626 3/13/2010 Hycroft Res & Dev Inc NMC 1022817 Pershing
SH 627 3/13/2010 Hycroft Res & Dev Inc NMC 1022818 Pershing
SH 628 3/13/2010 Hycroft Res & Dev Inc NMC 1022819 Pershing
SH 629 3/13/2010 Hycroft Res & Dev Inc NMC 1022820 Pershing
SH 630 3/13/2010 Hycroft Res & Dev Inc NMC 1022821 Pershing
SH 631 3/13/2010 Hycroft Res & Dev Inc NMC 1022822 Pershing
SH 632 3/13/2010 Hycroft Res & Dev Inc NMC 1022823 Pershing
SH 633 3/13/2010 Hycroft Res & Dev Inc NMC 1022824 Pershing
SH 232 4/23/2008 Hycroft Res & Dev Inc NMC 990885 Pershing
SH 233 4/23/2008 Hycroft Res & Dev Inc NMC 990886 Pershing
SH 234 4/23/2008 Hycroft Res & Dev Inc NMC 990887 Pershing
SH 242 4/23/2008 Hycroft Res & Dev Inc NMC 990898 Pershing
SH 243 4/23/2008 Hycroft Res & Dev Inc NMC 990899 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | BBBB

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 246 4/23/2008 Hycroft Res & Dev Inc NMC 990897 Pershing
SH 248 4/23/2008 Hycroft Res & Dev Inc NMC 991209 Pershing
SH 264 4/25/2008 Hycroft Res & Dev Inc NMC 990916 Pershing
SH 267 4/23/2008 Hycroft Res & Dev Inc NMC 990919 Pershing
SH 268 4/23/2008 Hycroft Res & Dev Inc NMC 990920 Pershing
SH 275 4/23/2008 Hycroft Res & Dev Inc NMC 990927 Pershing
SH 283 4/22/2008 Hycroft Res & Dev Inc NMC 990935 Pershing
SH 287 4/22/2008 Hycroft Res & Dev Inc NMC 990939 Pershing
SH 289 4/22/2008 Hycroft Res & Dev Inc NMC 990941 Pershing
SH 295 4/22/2008 Hycroft Res & Dev Inc NMC 990947 Pershing
SH 299 4/22/2008 Hycroft Res & Dev Inc NMC 990949 Pershing
SH 302 4/22/2008 Hycroft Res & Dev Inc NMC 990952 Pershing
SH 306 4/22/2008 Hycroft Res & Dev Inc NMC 990958 Pershing
SH 322 4/22/2008 Hycroft Res & Dev Inc NMC 990974 Pershing
SH 344 4/22/2008 Hycroft Res & Dev Inc NMC 990996 Pershing
SH 369 4/21/2008 Hycroft Res & Dev Inc NMC 991021 Pershing
SH 386 4/21/2008 Hycroft Res & Dev Inc NMC 991038 Pershing
SH 418 4/21/2008 Hycroft Res & Dev Inc NMC 991070 Pershing
SH 457 4/22/2008 Hycroft Res & Dev Inc NMC 991108 Pershing
SH 458 4/22/2008 Hycroft Res & Dev Inc NMC 991109 Pershing
SH 459 4/22/2008 Hycroft Res & Dev Inc NMC 991110 Pershing
SH 460 4/22/2008 Hycroft Res & Dev Inc NMC 991111 Pershing
SH 464 4/22/2008 Hycroft Res & Dev Inc NMC991115 Pershing
SH 465 4/22/2008 Hycroft Res & Dev Inc NMC 991116 Pershing
SH 466 4/22/2008 Hycroft Res & Dev Inc NMC991117 Pershing
SH 467 4/22/2008 Hycroft Res & Dev Inc NMC 991118 Pershing
SH 472 4/22/2008 Hycroft Res & Dev Inc NMC 991123 Pershing
SH 475 4/22/2008 Hycroft Res & Dev Inc NMC 991126 Pershing
SH 476 4/22/2008 Hycroft Res & Dev Inc NMC 991127 Pershing
SH 479 4/22/2008 Hycroft Res & Dev Inc NMC 991130 Pershing
SH 484 4/22/2008 Hycroft Res & Dev Inc NMC 991135 Pershing
SH 487 4/22/2008 Hycroft Res & Dev Inc NMC 991138 Pershing
SH 494 4/22/2008 Hycroft Res & Dev Inc NMC 991145 Pershing
SH 495 4/22/2008 Hycroft Res & Dev Inc NMC 991146 Pershing
SH 496 4/22/2008 Hycroft Res & Dev Inc NMC 991147 Pershing
SH 506 4/22/2008 Hycroft Res & Dev Inc NMC 991157 Pershing
SH 518 4/22/2008 Hycroft Res & Dev Inc NMC 991169 Pershing
SH 522 4/22/2008 Hycroft Res & Dev Inc NMC 991173 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | CCCC

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 525 4/22/2008 Hycroft Res & Dev Inc NMC 991176 Pershing
SH 527 4/22/2008 Hycroft Res & Dev Inc NMC 991178 Pershing
SH 547 4/22/2008 Hycroft Res & Dev Inc NMC 991198 Pershing
SH 634 3/13/2010 Hycroft Res & Dev Inc NMC 1022825 Pershing
SH 635 3/13/2010 Hycroft Res & Dev Inc NMC 1022826 Pershing
SH 636 3/13/2010 Hycroft Res & Dev Inc NMC 1022827 Pershing
SH 637 3/13/2010 Hycroft Res & Dev Inc NMC 1022828 Pershing
SH 638 3/13/2010 Hycroft Res & Dev Inc NMC 1022829 Pershing
SH 639 3/13/2010 Hycroft Res & Dev Inc NMC 1022830 Pershing
SH 640 3/13/2010 Hycroft Res & Dev Inc NMC 1022831 Pershing
SH 641 3/13/2010 Hycroft Res & Dev Inc NMC 1022832 Pershing
SH 642 3/13/2010 Hycroft Res & Dev Inc NMC 1022833 Pershing
SH 643 3/13/2010 Hycroft Res & Dev Inc NMC 1022834 Pershing
SH 644 3/13/2010 Hycroft Res & Dev Inc NMC 1022835 Pershing
SH 645 3/13/2010 Hycroft Res & Dev Inc NMC 1022836 Pershing
SH 646 3/13/2010 Hycroft Res & Dev Inc NMC 1022837 Pershing
SH 647 3/13/2010 Hycroft Res & Dev Inc NMC 1022838 Pershing
SH 648 3/13/2010 Hycroft Res & Dev Inc NMC 1022839 Pershing
SH 649 3/13/2010 Hycroft Res & Dev Inc NMC 1022840 Pershing
SH 650 3/13/2010 Hycroft Res & Dev Inc NMC 1022841 Pershing
SH 651 3/13/2010 Hycroft Res & Dev Inc NMC 1022842 Pershing
WCD 1 3/22/2006 Hycroft Res & Dev Inc NMC 928826 Pershing
WCD 17 4/21/2006 Hycroft Res & Dev Inc NMC 928836 Pershing
WCD 18 4/21/2006 Hycroft Res & Dev Inc NMC 928837 Pershing
WCD 19 4/21/2006 Hycroft Res & Dev Inc NMC 928838 Pershing
WCD 2 3/22/2006 Hycroft Res & Dev Inc NMC 928827 Pershing
WCD 20 4/21/2006 Hycroft Res & Dev Inc NMC 928839 Pershing
WCD 21 4/21/2006 Hycroft Res & Dev Inc NMC 928840 Pershing
WCD 22 4/21/2006 Hycroft Res & Dev Inc NMC 928841 Pershing
WCD 23 4/21/2006 Hycroft Res & Dev Inc NMC 928842 Pershing
WCD 24 4/21/2006 Hycroft Res & Dev Inc NMC 928843 Pershing
WCD 25 4/21/2006 Hycroft Res & Dev Inc NMC 928844 Pershing
WCD 26 4/21/2006 Hycroft Res & Dev Inc NMC 928845 Pershing
WCD 3 3/22/2006 Hycroft Res & Dev Inc NMC 928828 Pershing
WCD 4 4/22/2006 Hycroft Res & Dev Inc NMC 928829 Pershing
WCX 10 9/8/2006 Hycroft Res & Dev Inc NMC 941262 Pershing
WCX 5 9/8/2006 Hycroft Res & Dev Inc NMC 941257 Pershing
WCX 6 9/8/2006 Hycroft Res & Dev Inc NMC 941258 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | DDDD

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
WCX 7 9/8/2006 Hycroft Res & Dev Inc NMC 941259 Pershing
WCX 8 9/8/2006 Hycroft Res & Dev Inc NMC 941260 Pershing
WCX 9 9/8/2006 Hycroft Res & Dev Inc NMC 941261 Pershing
WCX 34 9/8/2006 Hycroft Res & Dev Inc NMC 941263 Pershing
WCX 35 9/8/2006 Hycroft Res & Dev Inc NMC 941264 Pershing
WCX 36 9/8/2006 Hycroft Res & Dev Inc NMC 941265 Pershing
WCX 37 9/8/2006 Hycroft Res & Dev Inc NMC 941266 Pershing
WCX 38 9/8/2006 Hycroft Res & Dev Inc NMC 941267 Pershing
WCX 39 9/8/2006 Hycroft Res & Dev Inc NMC 941268 Pershing
WCX 40 9/8/2006 Hycroft Res & Dev Inc NMC 941269 Pershing
WCX 41 9/8/2006 Hycroft Res & Dev Inc NMC 941270 Pershing
WCX 42 9/8/2006 Hycroft Res & Dev Inc NMC 941271 Pershing
WCX 43 9/8/2006 Hycroft Res & Dev Inc NMC 941272 Pershing
WCX 44 9/8/2006 Hycroft Res & Dev Inc NMC 941273 Pershing
WCX 45 9/8/2006 Hycroft Res & Dev Inc NMC 941274 Pershing
WCX 46 9/8/2006 Hycroft Res & Dev Inc NMC 941275 Pershing
WCX 47 9/8/2006 Hycroft Res & Dev Inc NMC 941276 Pershing
WCX 48 9/8/2006 Hycroft Res & Dev Inc NMC 941277 Pershing
WCX 49 9/8/2006 Hycroft Res & Dev Inc NMC 941278 Pershing
WCX 50 9/8/2006 Hycroft Res & Dev Inc NMC 941279 Pershing
WCX 51 9/8/2006 Hycroft Res & Dev Inc NMC 941280 Pershing
WCX 52 9/8/2006 Hycroft Res & Dev Inc NMC 941281 Pershing
WCX 53 9/8/2006 Hycroft Res & Dev Inc NMC 941282 Pershing
WCX 54 9/8/2006 Hycroft Res & Dev Inc NMC 941283 Pershing
WCX 55 9/8/2006 Hycroft Res & Dev Inc NMC 941284 Pershing
WCX 56 9/8/2006 Hycroft Res & Dev Inc NMC 941285 Pershing
WCX 57 9/8/2006 Hycroft Res & Dev Inc NMC 941286 Pershing
WCX 58 9/8/2006 Hycroft Res & Dev Inc NMC 941287 Pershing
WRC 10 3/13/1995 Hycroft Res & Dev Inc NMC 714261 Pershing
WRC 11 3/13/1995 Hycroft Res & Dev Inc NMC 714262 Pershing
WRC 12 3/13/1995 Hycroft Res & Dev Inc NMC 714263 Pershing
WRC 13 3/13/1995 Hycroft Res & Dev Inc NMC 714264 Pershing
WRC 14 3/13/1995 Hycroft Res & Dev Inc NMC 714265 Pershing
WRC 15 3/13/1995 Hycroft Res & Dev Inc NMC 714266 Pershing
WRC 16 3/13/1995 Hycroft Res & Dev Inc NMC 714267 Pershing
WRC 17 3/13/1995 Hycroft Res & Dev Inc NMC 714268 Pershing
WRC 19 3/13/1995 Hycroft Res & Dev Inc NMC 714270 Pershing
WRC 1 3/13/1995 Hycroft Res & Dev Inc NMC 714252 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | EEEE

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
WRC 18 3/13/1995 Hycroft Res & Dev Inc NMC 714269 Pershing
WRC 2 3/13/1995 Hycroft Res & Dev Inc NMC 714253 Pershing
WRC 20 3/13/1995 Hycroft Res & Dev Inc NMC 714271 Pershing
WRC 21 3/13/1995 Hycroft Res & Dev Inc NMC 714272 Pershing
WRC 22 3/13/1995 Hycroft Res & Dev Inc NMC 714273 Pershing
WRC 23 3/13/1995 Hycroft Res & Dev Inc NMC 714274 Pershing
WRC 24 3/13/1995 Hycroft Res & Dev Inc NMC 714275 Pershing
WRC 25 3/13/1995 Hycroft Res & Dev Inc NMC 714276 Pershing
WRC 26 3/13/1995 Hycroft Res & Dev Inc NMC 714277 Pershing
WRC 27 3/13/1995 Hycroft Res & Dev Inc NMC 714278 Pershing
WRC 28 3/13/1995 Hycroft Res & Dev Inc NMC 714279 Pershing
WRC 29 3/13/1995 Hycroft Res & Dev Inc NMC 714280 Pershing
WRC 3 3/13/1995 Hycroft Res & Dev Inc NMC 714254 Pershing
WRC 30 3/13/1995 Hycroft Res & Dev Inc NMC 714281 Pershing
WRC 31 3/13/1995 Hycroft Res & Dev Inc NMC 714282 Pershing
WRC 32 3/14/1995 Hycroft Res & Dev Inc NMC 714283 Pershing
WRC 33 3/14/1995 Hycroft Res & Dev Inc NMC 714284 Pershing
WRC 34 3/14/1995 Hycroft Res & Dev Inc NMC 714285 Pershing
WRC 35 3/14/1995 Hycroft Res & Dev Inc NMC 714286 Pershing
WRC 36 3/14/1995 Hycroft Res & Dev Inc NMC 714287 Pershing
WRC 37 3/14/1995 Hycroft Res & Dev Inc NMC 714288 Pershing
WRC 38 3/14/1995 Hycroft Res & Dev Inc NMC 714289 Pershing
WRC 39 3/14/1995 Hycroft Res & Dev Inc NMC 714290 Pershing
WRC 4 3/13/1995 Hycroft Res & Dev Inc NMC 714255 Pershing
WRC 40 3/14/1995 Hycroft Res & Dev Inc NMC 714291 Pershing
WRC 41 3/14/1995 Hycroft Res & Dev Inc NMC 714292 Pershing
WRC 42 3/14/1995 Hycroft Res & Dev Inc NMC 714293 Pershing
WRC 43 3/14/1995 Hycroft Res & Dev Inc NMC 714294 Pershing
WRC 44 3/14/1995 Hycroft Res & Dev Inc NMC 714295 Pershing
WRC 45 3/14/1995 Hycroft Res & Dev Inc NMC 714296 Pershing
WRC 46 3/14/1995 Hycroft Res & Dev Inc NMC 714297 Pershing
WRC 47 3/14/1995 Hycroft Res & Dev Inc NMC 714298 Pershing
WRC 48 3/14/1995 Hycroft Res & Dev Inc NMC 714299 Pershing
WRC 49 3/14/1995 Hycroft Res & Dev Inc NMC 714300 Pershing
WRC 5 3/13/1995 Hycroft Res & Dev Inc NMC 714256 Pershing
WRC 50 3/14/1995 Hycroft Res & Dev Inc NMC 714301 Pershing
WRC 51 3/14/1995 Hycroft Res & Dev Inc NMC 714302 Pershing
WRC 52 3/14/1995 Hycroft Res & Dev Inc NMC 714303 Pershing

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | FFFF

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
WRC 53 3/14/1995 Hycroft Res & Dev Inc NMC 714304 Pershing
WRC 54 3/14/1995 Hycroft Res & Dev Inc NMC 714305 Pershing
WRC 55 3/14/1995 Hycroft Res & Dev Inc NMC 714306 Pershing
WRC 56 3/14/1995 Hycroft Res & Dev Inc NMC 714307 Pershing
WRC 57 3/14/1995 Hycroft Res & Dev Inc NMC 714308 Pershing
WRC 58 3/14/1995 Hycroft Res & Dev Inc NMC 714309 Pershing
WRC 6 3/13/1995 Hycroft Res & Dev Inc NMC 714257 Pershing
WRC 60 3/14/1995 Hycroft Res & Dev Inc NMC 714311 Pershing
WRC 7 3/13/1995 Hycroft Res & Dev Inc NMC 714258 Pershing
WRC 8 3/13/1995 Hycroft Res & Dev Inc NMC 714259 Pershing
WRC 82 3/14/1995 Hycroft Res & Dev Inc NMC 714313 Pershing
WRC 84 3/14/1995 Hycroft Res & Dev Inc NMC 714315 Pershing
WRC 87 3/14/1995 Hycroft Res & Dev Inc NMC 714317 Pershing
WRC 88 3/14/1995 Hycroft Res & Dev Inc NMC 714318 Pershing
WRC 89 3/14/1995 Hycroft Res & Dev Inc NMC 714319 Pershing
WRC 9 3/13/1995 Hycroft Res & Dev Inc NMC 714260 Pershing
WRC 90 3/14/1995 Hycroft Res & Dev Inc NMC 714320 Pershing
WRC 91 3/14/1995 Hycroft Res & Dev Inc NMC 714321 Pershing
CKC #12 8/14/1987 Crofoot Daniel M NMC444109 Pershing/Humboldt
FG 226 9/5/2006 Hycroft Res & Dev Inc NMC 939259 Pershing/Humboldt
FG 275 9/1/2006 Hycroft Res & Dev Inc NMC 939296 Pershing/Humboldt
FG 324 9/1/2006 Hycroft Res & Dev Inc NMC 939337 Pershing/Humboldt
FG 377 9/1/2006 Hycroft Res & Dev Inc NMC 939382 Pershing/Humboldt
FG 433 9/1/2006 Hycroft Res & Dev Inc NMC 939438 Pershing/Humboldt
NC 132 8/14/2010 Hycroft Res & Dev Inc NMC1027970 Pershing/Humboldt
NC 17 8/14/2010 Hycroft Res & Dev Inc NMC1027855 Pershing/Humboldt
NC 170 8/14/2010 Hycroft Res & Dev Inc NMC1028008 Pershing/Humboldt
NC 205 8/14/2010 Hycroft Res & Dev Inc NMC1028043 Pershing/Humboldt
NC 240 8/14/2010 Hycroft Res & Dev Inc NMC1028078 Pershing/Humboldt
NC 274 8/14/2010 Hycroft Res & Dev Inc NMC1028112 Pershing/Humboldt
NC 306 8/14/2010 Hycroft Res & Dev Inc NMC1028144 Pershing/Humboldt
NC 50 8/14/2010 Hycroft Res & Dev Inc NMC1027888 Pershing/Humboldt
NC 91 8/14/2010 Hycroft Res & Dev Inc NMC1027929 Pershing/Humboldt
NFRA 12 11/7/2007 Victory Exploration Inc. NMC 977844 Pershing/Humboldt
NFRA 13 11/7/2007 Victory Exploration Inc. NMC 977845 Pershing/Humboldt
NFRA 14 11/7/2007 Victory Exploration Inc. NMC 977846 Pershing/Humboldt
NFRA 15 11/7/2007 Victory Exploration Inc. NMC 977847 Pershing/Humboldt
NFRA 23 11/7/2007 Victory Exploration Inc. NMC 977855 Pershing/Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | GGGG

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
NFRA 24 11/7/2007 Victory Exploration Inc. NMC 977856 Pershing/Humboldt
NFRA 4 11/7/2007 Victory Exploration Inc. NMC 977836 Pershing/Humboldt
NFRA 5 11/7/2007 Victory Exploration Inc. NMC 977837 Pershing/Humboldt
RFG #101 3/11/1989 Crofoot Daniel M NMC 546065 Pershing/Humboldt
RFG #103 3/11/1989 Crofoot Daniel M NMC 546066 Pershing/Humboldt
RFG #127 1/9/1980 Lewis Frank W NMC 141686 Pershing/Humboldt
RFG #129 1/9/1980 Lewis Frank W NMC 141687 Pershing/Humboldt
RFG #131 1/9/1980 Lewis Frank W NMC 141688 Pershing/Humboldt
RFG #132 1/9/1980 Lewis Frank W NMC 141689 Pershing/Humboldt
RFG #133 1/9/1980 Lewis Frank W NMC 141690 Pershing/Humboldt
RFG #134 1/9/1980 Lewis Frank W NMC 141691 Pershing/Humboldt
RFG #200A 12/28/1979 Lewis Frank W NMC 141725 Pershing/Humboldt
RFG #228 1/25/1980 Lewis Frank W NMC 141753 Pershing/Humboldt
RFG #230 1/25/1980 Lewis Frank W NMC 141757 Pershing/Humboldt
RFG #234 1/26/1980 Lewis Frank W NMC 141764 Pershing/Humboldt
RFG #235 1/26/1980 Lewis Frank W NMC 141766 Pershing/Humboldt
RFG #236 1/26/1980 Lewis Frank W NMC 141768 Pershing/Humboldt
RFG #237 1/30/1980 Lewis Frank W NMC 141770 Pershing/Humboldt
RFG #250 1/11/1980 Lewis Frank W NMC 141776 Pershing/Humboldt
RFG #252 1/11/1980 Lewis Frank W NMC 141778 Pershing/Humboldt
RFG #254 1/11/1980 Lewis Frank W NMC 141780 Pershing/Humboldt
RFG #257 1/11/1980 Hadi NMC 141783 Pershing/Humboldt
RFG #259 1/11/1980 Hadi NMC 141784 Pershing/Humboldt
RFG #261 1/11/1980 Hadi NMC 141785 Pershing/Humboldt
RFG #263 1/11/1980 Hadi NMC 141786 Pershing/Humboldt
RFG #99 3/11/1989 Crofoot Daniel M NMC 546064 Pershing/Humboldt
RFG 104 5/20/2006 Hycroft Res & Dev Inc NMC 932887 Pershing/Humboldt
RFG 105 5/20/2006 Hycroft Res & Dev Inc NMC 932888 Pershing/Humboldt
RFG 106 5/20/2006 Hycroft Res & Dev Inc NMC 932889 Pershing/Humboldt
RFG 108 5/20/2006 Hycroft Res & Dev Inc NMC 932891 Pershing/Humboldt
RFG 110 5/20/2006 Hycroft Res & Dev Inc NMC 932893 Pershing/Humboldt
RFG 112 5/20/2006 Hycroft Res & Dev Inc NMC 932895 Pershing/Humboldt
RFG 136 5/20/2006 Hycroft Res & Dev Inc NMC 932905 Pershing/Humboldt
RFG 138 5/20/2006 Hycroft Res & Dev Inc NMC 932906 Pershing/Humboldt
RFG 140 5/20/2006 Hycroft Res & Dev Inc NMC 932907 Pershing/Humboldt
RFG 256 5/20/2006 Hycroft Res & Dev Inc NMC 932911 Pershing/Humboldt
SH 348 4/21/2008 Hycroft Res & Dev Inc NMC 991000 Pershing/Humboldt
SH 349 4/21/2008 Hycroft Res & Dev Inc NMC 991001 Pershing/Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | HHHH

 

Unpatented Claim Name Location Date Claimant BLM Serial Number Filing County
SH 329 4/22/2008 Hycroft Res & Dev Inc NMC 990981 Pershing/Humboldt
SH 330 4/22/2008 Hycroft Res & Dev Inc NMC 990982 Pershing/Humboldt
SH 331 4/22/2008 Hycroft Res & Dev Inc NMC 990983 Pershing/Humboldt
SH 332 4/22/2008 Hycroft Res & Dev Inc NMC 990984 Pershing/Humboldt
SH 333 4/22/2008 Hycroft Res & Dev Inc NMC 990985 Pershing/Humboldt
SH 353 4/21/2008 Hycroft Res & Dev Inc NMC 991005 Pershing/Humboldt
SH 354 4/21/2008 Hycroft Res & Dev Inc NMC 991006 Pershing/Humboldt
SH 355 4/21/2008 Hycroft Res & Dev Inc NMC 991007 Pershing/Humboldt
SH 356 4/21/2008 Hycroft Res & Dev Inc NMC 991008 Pershing/Humboldt
SH 357 4/21/2008 Hycroft Res & Dev Inc NMC 991009 Pershing/Humboldt
SH 371 4/21/2008 Hycroft Res & Dev Inc NMC 991023 Pershing/Humboldt
SH 372 4/21/2008 Hycroft Res & Dev Inc NMC 991024 Pershing/Humboldt
SH 382 4/21/2008 Hycroft Res & Dev Inc NMC 991034 Pershing/Humboldt
SH 383 4/21/2008 Hycroft Res & Dev Inc NMC 991035 Pershing/Humboldt
SH 384 4/21/2008 Hycroft Res & Dev Inc NMC 991036 Pershing/Humboldt
SH 385 4/21/2008 Hycroft Res & Dev Inc NMC 991037 Pershing/Humboldt
SH 407 4/21/2008 Hycroft Res & Dev Inc NMC 991059 Pershing/Humboldt
SH 408 4/21/2008 Hycroft Res & Dev Inc NMC 991060 Pershing/Humboldt
SH 409 4/21/2008 Hycroft Res & Dev Inc NMC 991061 Pershing/Humboldt
SH 410 4/21/2008 Hycroft Res & Dev Inc NMC 991062 Pershing/Humboldt
SH 411 4/21/2008 Hycroft Res & Dev Inc NMC 991063 Pershing/Humboldt
SH 431 4/21/2008 Hycroft Res & Dev Inc NMC 991083 Pershing/Humboldt
SH 432 4/21/2008 Hycroft Res & Dev Inc NMC 991084 Pershing/Humboldt
SH 433 4/21/2008 Hycroft Res & Dev Inc NMC 991085 Pershing/Humboldt
SH 434 4/21/2008 Hycroft Res & Dev Inc NMC 991086 Pershing/Humboldt

 

HYCROFT MINE | Hycroft Technical Report Summary and Initial AssessmentAppendix | IIII