EXHIBIT 99.3

Announcement Summary

Entity name

NOVONIX LIMITED

Announcement Type

New announcement

Date of this announcement

24/7/2025

The Proposed issue is:

A placement or other type of issue

Total number of +securities proposed to be issued for a placement or other type of issue

Proposed +issue date

25/7/2025

Refer to next page for full details of the announcement

Part 1 - Entity and announcement details

1.1 Name of +Entity

NOVONIX LIMITED

We (the entity named above) give ASX the following information about a proposed issue of +securities and, if ASX agrees to +quote any of the +securities (including any rights) on a +deferred settlement basis, we agree to the matters set out in Appendix 3B of the ASX Listing Rules.

If the +securities are being offered under a +disclosure document or +PDS and are intended to be quoted on ASX, we also apply for quotation of all of the +securities that may be issued under the +disclosure document or +PDS on the terms set out in Appendix 2A of the ASX Listing Rules (on the understanding that once the final number of +securities issued under the +disclosure document or +PDS is known, in accordance with Listing Rule 3.10.3C, we will complete and lodge with ASX an Appendix 2A online form notifying ASX of their issue and applying for their quotation).

1.3 ASX issuer code

NVX

1.4 The announcement is

New announcement

1.5 Date of this announcement

24/7/2025

1.6 The Proposed issue is:

A placement or other type of issue

Part 7 - Details of proposed placement or other issue

Part 7A - Conditions

7A.1 Do any external approvals need to be obtained or other conditions satisfied before the placement or other type of issue can proceed on an unconditional basis?

No

Part 7B - Issue details

Details of +securities proposed to be issued

ISIN Code (if Issuer is a foreign company and +securities do not have +CDIs issued over them)

+Security type

+Convertible debt securities

Number of +securities proposed to be issued

100,000,000

Offer price details

Are the +securities proposed to be issued being issued for a cash consideration?

Yes

AUD equivalent to issue price amount per +security

1.442235

Will all the +securities issued in this class rank equally in all respects from their issue date?

Yes

+Convertible debt securities details

Interest rate type

Fixed rate

s128F of the Income Tax Assessment Act status applicable to the +security

s128F exemption status unknown

Details of the type of +security that will be issued if the securities are converted, transformed or exchanged

NVX : ORDINARY FULLY PAID

Number of +securities that will be issued if the +securities are converted, transformed or exchanged (including, if applicable, any interest)

Please provide a URL link for a document lodged with ASX setting out the material terms of the +securities proposed to be issued or provide the information by separate announcement.

ASX +security code and description

NVX : ORDINARY FULLY PAID

Number of +securities proposed to be issued

783,867

Offer price details

Are the +securities proposed to be issued being issued for a cash consideration?

No

Please describe the consideration being provided for the +securities

Please provide an estimate of the AUD equivalent of the consideration being provided for the +securities

458,562.200000

Will these +securities rank equally in all respects from their issue date with the existing issued +securities in that class?

Yes

Part 7C - Timetable

7C.1 Proposed +issue date

25/7/2025

Part 7D - Listing Rule requirements

7D.1 Has the entity obtained, or is it obtaining, +security holder approval for the entire issue under listing rule 7.1?

No

7D.1b Are any of the +securities proposed to be issued without +security holder approval using the entity's 15% placement capacity under listing rule 7.1?

Yes

7D.1b ( i ) How many +securities are proposed to be issued without security holder approval using the entity's 15% placement capacity under listing rule 7.1?

Up to 94,682,978 ordinary shares can be issued upon conversion of the first drawdown convertible debentures and 783,867 ordinary shares (Interest Equity Shares) without needing to obtain shareholder approval under listing rule 7.1.

7D.1c Are any of the +securities proposed to be issued without +security holder approval using the entity's additional 10% placement capacity under listing rule 7.1A (if applicable)?

No

7D.2 Is a party referred to in listing rule 10.11 participating in the proposed issue?

No

7D.3 Will any of the +securities to be issued be +restricted securities for the purposes of the listing rules?

No

7D.4 Will any of the +securities to be issued be subject to +voluntary escrow?

No

Part 7E - Fees and expenses

7E.1 Will there be a lead manager or broker to the proposed issue?

Yes

7E.1a Who is the lead manager/broker?

Goldman Sachs & Co. LLC is serving as exclusive financial advisor to NOVONIX.

7E.1b What fee, commission or other consideration is payable to them for acting as lead manager/broker?

A financial advisory fee of the greater of US$3M and 7% of the aggregate amount committed. A further $1,000,000 is payable by the Company if the additional drawdown of $40M is not utilised.

7E.2 Is the proposed issue to be underwritten?

No

7E.4 Details of any other material fees or costs to be incurred by the entity in connection with the proposed issue

Legal and other advisory fees.

Part 7F - Further Information

7F.01 The purpose(s) for which the entity is issuing the securities

The proceeds from these convertible notes will provide additional capital for the continued build-out of our Riverside facility in Chattanooga, Tennessee and for general corporate purposes.

7F.1 Will the entity be changing its dividend/distribution policy if the proposed issue proceeds?

No

7F.2 Any other information the entity wishes to provide about the proposed issue

Number of +securities that will be issued if the +securities are converted, transformed or exchanged disclosed in section 7B is based on the conversion price as at the date of this Appendix 3B and it may change.

7F.3 Any on-sale of the +securities proposed to be issued within 12 months of their date of issue will comply with the secondary sale provisions in sections 707(3) and 1012C(6) of the Corporations Act by virtue of:

The publication of a cleansing notice under section 708A(5), 708AA(2)(f), 1012DA(5) or 1012DAA(2)(f)