GOLD MOUNTAIN LIMITED — Director's Dealing 2026

Mar 10, 2026

Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of 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 30/09/01 Amended 01/01/11

Name of entity	Gold Mountain Limited
ABN	79 115 845 942

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director David Andrew Evans Date of last notice 15 December 2025

Part 1 - Change of director’s relevant interests in securities

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.

Direct or indirect interest	Direct
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Mars Mines Limited – Director and shareholder
Date of change	11 March 2026
No. of securities held prior to change	1. Direct 1,200,000 unlisted options ex $0.01 expiring 15/12/2027 4,196,962 GMN Ordinary shares 270,270 GMNOC listed options ex $0.0055 expiring 20/6/27 Performance Rights D 5,000,000 Performance Rights E 5,000,000 Performance Rights F 5,000,000 2. Indirect 3,166,669 GMN ordinary shares 316,667 GMNAAT Options

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

Class	GMN Ordinary Shares Performance Rights D Performance Rights E
Number acquired	GMN Ordinary Shares 10,000,000
Number disposed	Performance Rights D 5,000,000 Performance Rights E 5,000,000
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	Nil
No. of securities held after change	1. Direct 1,200,000 unlisted options ex $0.01 expiring 15/12/2027 14,196,962 GMN Ordinary shares 270,270 GMNOC listed options ex $0.0055 expiring 20/6/27 Performance Rights F 5,000,000 2. Indirect 3,166,669 GMN ordinary shares 316,667 GMNAAT Options
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	Exercise of vested performance rights

Part 2 – Change of 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 N/A Nature of interest

• See chapter 19 for defined terms.

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01/01/2011

Appendix 3Y Change of Director’s Interest Notice

Name of registered holder (if issued securities) Date of change No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed Interest acquired Interest disposed Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation Interest after change

Part 3 –[+] Closed period

Were the interests in the securities or contracts N/A detailed above traded during a[+] closed period where prior written clearance was required? If so, was prior written clearance provided to allow N/A the trade to proceed during this period? If prior written clearance was provided, on what N/A date was this provided?

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 3