SUNSTONE METALS LTD — Director's Dealing 2025

Sep 15, 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 SUNSTONE METALS LIMITED ABN 68 123 184 412

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	Patrick Duffy
Date of last notice	20 December 2024

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 (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Thoona Investments Pty Ltd (beneficial holder) Xavier Duffy (related party) Leo Duffy (related party) Chantelle Duffy (relatedparty)
Date of change	12 September 2025
No. of securities held prior to change	30,086,097 shares • Direct: 7,283,606; • Indirect: 22,802,491 (19,559,700 Thoona Investments, 2,854,286 Chantelle Duffy, 250,631 Xavier Duffy, 137,874 Leo Duffy) 11,000,000 Unquoted Options (indirect) 34,435,251 Unquoted Performance Rights (direct)
Class	Ordinary Shares Unquoted Performance Rights
Number acquired	_Shares:_Direct: 5,000,000

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

Number disposed	Performance Rights: 5,000,000 rights vested 10,000,000 rights expired
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	Nil – vesting of performance rights issued under the Employee Performance Rights Plan
No. of securities held after change	35,086,097 shares • Direct: 12,283,606; • Indirect: 22,802,491 (19,559,700 Thoona Investments, 2,854,286 Chantelle Duffy, 250,631 Xavier Duffy, 137,874 Leo Duffy) 11,000,000 Unquoted Options (indirect) 19,435,251 Unquoted Performance Rights (direct)
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy- back	Changes relate to performance rights approved at General Meeting on 2 July 2024: - 5,000,000 issued as shares as vesting conditions were met for the TSR tranche - 10,000,000 rights expired (no shares issued) as vesting conditions were not met for the shareprice target tranches

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
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

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

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

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

Date of Notification: 16 September 2025

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

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