GREAT DIVIDE MINING LTD — Director's Dealing 2025

Aug 7, 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	19 March 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	5 August 2025

• See chapter 19 for defined terms.

Appendix 3Y Change of Director’s Interest Notice

N	N							0	0
	N	o. of securities held prior to c	hange		Adam Ark	installly Paid Ordinary Sharesment Fund Pty LtdFully Paid Ordinary Sharnlisted Options exercisa3 August 2026kinstalllly Paid Ordinary Sharesisted Options exercisabl3 August 2026John Arkinstall & Mr Ian	esble at $0.4 e at $0.40Johnnd>	0
					32,623 FulAG Invest
					1,850,000610,000 Uexpiring 2Archie Ar
					10,000 Fu2,000 Unlexpiring 2Mr Adam
					Arkinstall	<AJ Arkinstall Super Fu
					263,219 Fu	lly Paid Ordinary Shares
	C	lass			Fully Paid	Ordinary Shares
	N	umber acquired			5,000
	N(r	umber disposedesult from share consolidation)			Nil
	V	lCidi
	co	aue/onseratonnsideration is non-cash, provide details and estima	Note: Ifted valuation		$2,050
	N	o. of securities held after chan	ge		Adam Ark	install
					37,623 Ful	ly Paid Ordinary Shares
					AG Invest	ment Fund Pty LtdFully Paid Ordinary Shar	es
					1,850,000
					610,000 Uexpiring 2	nlisted Options exercisa3 August 2026	ble at $0.4	0
					Archie Ar	kinstalllly Paid Ordinary Shares
					10,000 Fu
					2,000 Unlexpiring 2	isted Options exercisabl3 August 2026	e at $0.40
					Mr Adam	John Arkinstall & Mr Ian	John
					Arkinstall	<AJ Arkinstall Super Fu	nd>
					263,219 Fu	lly Paid Ordinary Shares
	NExse	ature of changeample: on-market trade, off-market trade,curities under dividend reinvestment plan, part	exercise of options, issue oficipation in buy-back		On marke	t purchase
+ Se
		e chapter 19 for defined terms.

• 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.