GREAT DIVIDE MINING LTD — Director's Dealing 2025

Aug 18, 2025

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 GREAT DIVIDE MINING LIMITED ABN 47 655 868 803

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	Adam Arkinstall
Date of last notice	8 August 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 and Indirect
Nature of indirect interest	AG Investment Fund Pty Ltd
(including registered holder)Note: Provide details of the circumstances giving rise to the relevant interest.	Mr Arkinstall is a controller of this entity and
	has a beneficial interest in the securities it
	holds.
	Archie Arkinstall
	Archie is Mr Arkinstall’s son. Mr Arkinstall
	considers he may have the ability to exercise
	control over this holding given Archie is a
	minor.
	Mr Adam John Arkinstall & Mr Ian John
	Arkinstall
	Mr Arkinstall is a joint registered holder and
	has a beneficial interest in the securities held.
Date of change	Refer Annexure

• See chapter 19 for defined terms.

Appendix 3Y Change of Director’s Interest Notice

	No. of securities held prior to change		Adam Arkinstall37,623 Fully Paid Ordinary Shares	Adam Arkinstall37,623 Fully Paid Ordinary Shares
			AG Investment Fund Pty Ltd1,850,000 Fully Paid Ordinary Shares610,000 Unlisted Options exercisable at $0.40expiring 23 August 2026Archie Arkinstall10,000 Fully Paid Ordinary Shares2,000 Unlisted Options exercisable at $0.40expiring 23 August 2026Mr Adam John Arkinstall & Mr Ian John
			Arkinstall 263,219 Fully Paid Ordinary Shares
	Class		Fully Paid Ordinary Shares
	Number acquired		53,361 (As per Annexure)
	Number disposed(result from share consolidation)		Nil
	Value/ConsiderationNote: Ifconsideration is non-cash, provide details and estimated valuation		$21,212 (As per Annexure)
	No. of securities held after change		Adam Arkinstall90,984 Fully Paid Ordinary SharesAG Investment Fund Pty Ltd1,850,000 Fully Paid Ordinary Sharesld bl
			610,000 Uniste Options exercisae at $0.40expiring 23 August 2026Archie Arkinstall10,000 Fully Paid Ordinary Shares
			2,000 Unlisted Options exercisable at $0.40expiring 23 August 2026
			Mr Adam John Arkinstall & Mr Ian JohnArkinstall 263,219 Fully Paid Ordinary Shares
	Nature of changeExample: on-market trade, off-market trade, exercise of options, issue ofsecurities under dividend reinvestment plan, participation in buy-back		On market purchase

• See chapter 19 for defined terms.

Appendix 3Y Change of Director’s Interest Notice

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	Not applicable
Nature of interest	Not applicable
Name of registered holder(if issued securities)	Not applicable
Date of change	Not applicable
No. and class of securities to whichinterest related prior to changeNote: Details are only required for a contract in relation towhich the interest has changed	Not applicable
Interest acquired	Not applicable
Interest disposed	Not applicable
Value/ConsiderationNote: If consideration is non-cash, provide details and anestimated valuation	Not applicable
Interest after change	Not applicable

Part 3 –[+] Closed period

art 3 –+Closed period
Were the interests in the securities or contracts detailedabove traded during a+closed period where prior written**clearance was required? **	No
If so, was prior written clearance provided to allow thetrade to proceed during this period?	Not applicable
If prior written clearance was provided, on what date wasthis provided?	Not applicable

Rule 3.19A.2

• See chapter 19 for defined terms.

Appendix 3Y Change of Director’s Interest Notice

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• See chapter 19 for defined terms.