CHALICE MINING LIMITED — Director's Dealing 2025

Aug 5, 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	Chalice Mining Limited
ABN	47 116 648 956

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	Alexander Carl Dorsch
Date of last notice	30 April 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	Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	1) Lunar Co Pty Ltd as trustee for The H & A Dorsch Family Trust. Mr Dorsch is a beneficiary of The H & A Dorsch Family Trust and a director of its trustee. 2) Australian Super Pty Ltd as trustee of Australian Super - Alex Dorsch superannuation account 3) HSBC Custody Nominees (Australia) Ltd (as custodian for Equities First Holdings LLC) as security for a margin loan facility.
Date of change	6 August 2025

• See chapter 19 for defined terms.

01/01/2011

Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

No. of securities held prior to change	Indirect Interest 1) Lunar Co Pty Ltd as trustee for The H & A Dorsch Family Trust Ordinary Shares 3,949,447 fully paid ordinary shares Performance Rights • 228,938 – vesting 30 June 2025, expiring 30 June 2027. • 154,574 – vesting 30 June 2026, expiring 30 June 2028. • 696,458 – vesting 30 June 2027, expiring 30 June 2030 Each Performance Right is convertible into one fully paid ordinary share for nil cash consideration subject to the satisfaction of performance and service vesting conditions. 2) Australian Super Pty Ltd as trustee of Australian Super - Alex Dorsch’s superannuation account Ordinary Shares 50,000 fully paid ordinary shares 3) HSBC Custody Nominees (Australia) Ltd (as custodian for Equities First Holdings LLC) as security for a margin loan facility. Ordinary Shares 2,000,000 fully paid ordinary shares
Class	Fully paid ordinary shares
Number acquired	28,617
Number disposed	N/A
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	Nil – exercise of vested FY2022-23 Performance Rights

• See chapter 19 for defined terms.

Appendix 3Y Page 2

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Appendix 3Y Change of Director’s Interest Notice

No. of securities held after change

Indirect Interest 1) Lunar Co Pty Ltd as trustee for The H & A Dorsch Family Trust Ordinary Shares 3,978,064 fully paid ordinary shares Performance Rights • 154,574 – vesting 30 June 2026, expiring 30 June 2028. • 696,458 – vesting 30 June 2027, expiring 30 June 2030 Each Performance Right is convertible into one fully paid ordinary share for nil cash consideration subject to the satisfaction of performance and service vesting conditions. 2) Australian Super Pty Ltd as trustee of Australian Super - Alex Dorsch’s superannuation account Ordinary Shares 50,000 fully paid ordinary shares 3) HSBC Custody Nominees (Australia) Ltd (as custodian for Equities First Holdings LLC) as security for margin loan facility. Ordinary Shares 2,000,000 fully paid ordinary shares

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 28,617 vested FY2022-23 Performance Rights. 200,321 unvested FY2022-23 Performance Rights have been forfeited in accordance with their terms.

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	N/A
Name of registered holder (if issued securities)	N/A
Date of change	N/A

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

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	N/A
Interest acquired	N/A
Interest disposed	N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation	N/A
Interest after change	N/A

Part 3 –[+] Closed period

art 3 –+Closed period
Were the interests in the securities or contracts detailed above traded during a+closed period where prior written clearance was required?	No
If so, was prior written clearance provided to allow the trade to proceed during this period?	N/A
If prior written clearance was provided, on what date was this provided?	N/A

• See chapter 19 for defined terms.

Appendix 3Y Page 4

01/01/2011