Exhibit 10.3

NEXT WATER-ENERGY SYNERGY

Smart Water-Energy Synergy System Development Contract

Party A (Employer): Starlight Garden Limited

Party B (Developer): Next Technology Holding Inc.

Whereas：

Party A intends to promote water supply pipeline leakage control, intelligent operation management, and water-energy synergy optimization projects to achieve leakage rate optimization, operational efficiency improvement, management digitalization, energy consumption reduction, and carbon emission reduction goals.

Party B has the capability of developing the NEXT WATER-ENERGY SYNERGY Smart Water-Energy Synergy System (hereinafter referred to as the “System”), integrating equipment, and implementing projects, which can adapt to carbon peaking/carbon neutrality monitoring, renewable energy access and other needs, and meet all-dimensional requirements of Party A’s project.

In accordance with the principles of equality, voluntariness and mutual benefit, and based on international business practices, the two parties hereby enter into this agreement regarding Party B providing System development and project implementation services to Party A.

Article 1 Project Overview

1.1 Project Name

NEXT WATER-ENERGY SYNERGY Intelligent Management and Energy Synergy Optimization Integrated Application Project

1.2 Project Goals

(1) By the end of 2026, the water supply pipeline leakage rate ≤ 8% (production and sales difference ≤ 10%), and the comprehensive energy consumption of water operations reduced by ≥ 15% compared with that before transformation;

(2) Establish a full-process System covering “perception-platform-dispatching-energy synergy”, realizing real-time collection, correlation analysis and visual management of water and energy data (energy consumption, PV, carbon emissions);

(3) Remote transmission coverage rate of water meters with DN40 and above ≥ 100%, remote transmission water volume ratio ≥ 95%, energy consumption monitoring coverage rate of water links ≥ 100%, PV monitoring accuracy ≥ 99% ;

(4) Establish a “water-energy” synergy data security system to ensure the security of pipeline network, user, operation, energy consumption and carbon emission reduction data;

(5) Annual carbon emission reduction ≥ 50 tons of CO₂, annual power generation of PV equipment ≥ 100,000 kWh (adapting to microgrid access).

Article 2 Project Content and Scope

Party B shall complete the following core tasks to ensure the implementation of the System (including energy synergy module) and the achievement of project goals:

2.1 Core Module Development of the System

2.2 Construction of Dispatching Command Center

Hardware Deployment: Add energy monitoring terminals (energy consumption collectors, PV data receivers) to adapt to the dual-dimensional data processing needs of “water + energy”.

Software Function: Develop a B/S architecture visual sub-platform to display real-time energy consumption of each water link, PV power generation and carbon emission reduction progress, supporting multi-terminal access and hierarchical permission control.

2.3 Deployment and Integration of Perception Layer Equipment

2.4 Supporting System Construction

1. “Water-Energy” Synergy Data Warehouse: Add hierarchical modeling of energy data (energy consumption, PV, carbon emissions) to support “water volume-energy consumption-carbon emission” correlation analysis.

2. Carbon Emission Reduction Accounting Subsystem: Build a model in accordance with ISO 14064, automatically capture data and generate internationally certified carbon accounting documents.

3. Data Security System: Energy consumption, PV and carbon emission data are transmitted with AES-256 encryption to adapt to the security needs of energy equipment access.

Article 3 Project Cycle

Total cycle: 18 months, divided into 5 phases：

Agreement on Construction Period Delay: If the delay is caused by Party A’s failure to cooperate with PV grid connection, Party B may apply for a construction period extension; if the delay is caused by Party B’s own reasons, Party B shall bear responsibility in accordance with Article 10 of this Contract.

Article 4 Technical Requirements

4.1 Applicable Standards

4.2 Key Technical Indicators

Article 5 Rights and Obligations of Both Parties

5.1 Rights and Obligations of Party A

1. Supervise the development progress of the energy module and put forward rectification requirements for the accuracy of energy data (rectification period ≤ 15 working days); 2. Participate in the acceptance of delivered energy perception equipment and confirm that the equipment model is consistent with the Contract

2. Provide basic energy data (historical energy consumption, power grid access permit, PV site planning drawing) within 20 working days after the Contract takes effect; 2. Coordinate with the power department to cooperate with PV equipment grid-connected debugging, and provide temporary power supply and network interface for the PV site; 3. Organize energy-related departments to participate in System acceptance and confirm the carbon emission reduction and energy consumption reduction rate in accordance with the agreement

5.2 Rights and Obligations of Party B

1. Have the right to apply for cost compensation if the cost increases due to Party A’s failure to provide energy data in a timely manner or cooperate with PV grid connection

2. Provide original factory qualification certificates for energy perception equipment (energy consumption meters include MID certification), and the carbon emission reduction module shall pass the accounting verification of a third party (e.g., SGS); 2. Provide ≥ 2 “special trainings on energy optimization” (including energy consumption analysis, carbon accounting, PV dispatching); 3. Bear a 5-year confidentiality responsibility for energy consumption, carbon emission reduction and PV power generation data; 4. Deliver complete documents of the energy module (energy optimization manual, carbon accounting algorithm description, PV connection agreement) upon acceptance

Article 6 Delivery and Acceptance

6.1 Acceptance Standards

6.2 Acceptance Process

1. After completing the phased work, Party B shall submit the System Acceptance Application and materials (phased work report, test records, equipment certificate).

2. Party A shall organize acceptance within 10 working days after receiving the application, and issue the Phased Acceptance Report if qualified; if unqualified, Party B shall rectify within 15 working days, and the rectification shall not exceed 2 times.

3. After the project is fully completed, Party B shall submit the Final Acceptance Application, and Party A shall organize acceptance within 20 working days and issue the Final Acceptance Report if qualified.

4. Dispute Resolution: Disputes related to the accuracy of energy data and carbon emission reduction accounting shall be evaluated by an internationally recognized institution (e.g., SGS, DNV), and the expenses shall be borne by the responsible party.

Article 7 Contract Amount and Payment

7.1 Total Project Cost

Total Amount: USD 7,200,000.00, with the cost composition as follows:

7.2 Payment Method and Phases

1. Payment Method: Party A shall transfer funds to Party B’s designated international bank account.By mutual agreement, a third party is allowed to collect and pay on behalf of both parties.

2. Payment Phases:

Article 8 Intellectual Property and Confidentiality

8.1 Intellectual Property

Confidentiality Clause

1. Confidential Scope: Including but not limited to Party A’s energy consumption data, carbon emission reduction data, PV power generation data, and Party B’s System algorithms and technical documents.

2. Confidentiality Period: The confidentiality period for energy consumption, carbon emission reduction and PV power generation data is 5 years, and the confidentiality period for other trade secrets is 3 years after the Contract is terminated.

3. Liability for Breach: Any party that discloses confidential information shall pay a penalty of 20% of the total contract amount (USD 1,440,000.00) and compensate the other party for direct losses.

Article 9 Liability for Breach

9.1 Party A’s Liability for Breach

9.2 Party B’s Liability for Breach

Article 10 Force Majeure

1. Scope of Force Majeure: Including earthquakes, wars, cross-border logistics interruptions, policy adjustments between China and the US leading to obstacles in System development or equipment import, as well as power system failures (not caused by Party A), PV module supply chain interruptions, and carbon accounting standard policy adjustments.

2. Notification Obligation: The affected party shall notify the other party in writing within 24 hours and provide supporting materials (e.g., logistics interruption notice, policy document) within 7 working days.

3. Exemption from Liability: If the Contract cannot be performed due to force majeure, the two parties shall negotiate to terminate the Contract, and the incurred expenses shall be settled according to the actual workload; if part of the Contract can be performed, the two parties shall negotiate to extend the construction period.

Article 11 Dispute Resolution

1. Disputes shall first be resolved through friendly negotiation (negotiation period: 30 days).

2. If negotiation fails, either party has the right to file a lawsuit with the competent court at the place where Party B is located, or submit the dispute to the American Arbitration Association (AAA) for arbitration in accordance with its international arbitration rules (arbitration place: New York, arbitration tribunal composed of 3 members).

3. During the dispute period, except for the disputed matters, the other clauses of the Contract and the development and delivery of the undisputed part of the System shall continue to be performed.

Article 12 Miscellaneous

1. Contract Modification: Adjustments to the energy module function or changes to the PV equipment model shall be confirmed in writing by both parties, and the supplementary agreement shall have the same legal effect as this Contract.

2. Contract Effectiveness: This Contract shall take effect from the date of signature and seal by both parties.

3. Number of Contract Copies: This Contract is made in 6 copies, with 3 copies held by each party, all having the same legal effect.

Party A (Seal): Starlight Garden Limited

Authorized Representative (Signature): /s/ Starlight Garden Limited

Date: August 8, 2025

Party B : Next Technology Holding Inc.

Authorized Representative (Signature): /s/ Next Technology Holding Inc.

Date: August 8, 2025