6K ADDITIVE, INC. — Director's Dealing 2025

Dec 3, 2025

Appendix 3X Initial Director’s Interest Notice

Rule 3.19A.1

Appendix 3X

Initial Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/9/2001.

Name of entity: 6K Additive, Inc.

ARBN: 692 243 646

We (the entity) give ASX the following information under listing rule 3.19A.1 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	David M. Seldin
Date of appointment	29 August 2025

Part 1 - Director’s relevant interests in securities of which the director is the registered holder

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Number & class of securities

Nil

• See chapter 19 for defined terms.

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Appendix 3X Initial Director’s Interest Notice

Part 2 – Director’s relevant interests in securities of which the director is not the registered holder

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Name of holder & nature of Number & class of Securities interest

Note: Provide details of the circumstances giving rise to the relevant interest.

David Seldin is a managing partner of Anzu Partners LLC ( Anzu ), and a holder of interests in Anzu, an investor in and, beneficiary of, certain funds affiliated with Anzu, as well as a director of 6K Inc. David, as an Anzu managing partner, has control over the power to vote or dispose of securities held by Anzu and its affiliated funds. Anzu and those affiliated funds hold ~34% of the current issued capital of 6K Inc., and therefore David has a relevant interest in the securities in the Company held by 6K Inc.

160,862,115 shares of Common Stock:

• 91,366,466 shares of Common Stock are subject to mandatory ASX escrow until the end of 24 months from the date of quotation being 4 December 2025

• • 160,862,115 shares of Common Stock are voluntary escrowed and are to be released as follows:

• 9,482,945 shares of Common Stock to be released from voluntary escrow after the Company lodges its 1H 2026 financial report;

• o 71,655,898 shares of Common Stock t o be released from voluntary escrow after the Company lodges its FY 2026 financial report; and

• o 79,723,272 shares of Common Stock t o be released from voluntary escrow on either (i) after the Company lodges its FY 2027 financial report; or (ii) if the sixty-day volume-weighted average price of the Company’s CDI price on ASX exceeds three times the Offer Price, whichever occurs first

Part 3 – Director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract Nil

• See chapter 19 for defined terms.

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Appendix 3X Initial Director’s Interest Notice

Nature of interest	Nil
Name of registered holder (if issued securities)	Nil
No. and class of securities to which interest relates	Nil

• See chapter 19 for defined terms.

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