SUNSTONE METALS LTD — Director's Dealing 2026

Mar 16, 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 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	3 November 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 (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 March 2026
No. of securities held prior to change	1,169,539 shares • Direct: 409,454; • Indirect: 760,085 (651,991 Thoona Investments; 95,143 Chantelle Duffy; 8,355 Xavier Duffy; 4,596 Leo Duffy) 366,667 Unquoted Options (indirect) 1,559,308 Unquoted Performance Rights (direct)
Class	Ordinary shares
Number acquired	61,404
Number disposed	Nil

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

Page 1

Appendix 3Y Change of Director’s Interest Notice

Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$0.57 per share ($35,000)
No. of securities held after change	1,230,943 shares • Direct: 409,454; • Indirect: 821,489 (713,395 Thoona Investments; 95,143 Chantelle Duffy; 8,355 Xavier Duffy; 4,596 Leo Duffy) 366,667 Unquoted Options (indirect) 1,559,308 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	Shares purchased from participation in December 2025 Placement as approved by shareholders at the General Meeting on 23February2026.

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

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

Page 2

Appendix 3Y Change of Director’s Interest Notice

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: 17 March 2026

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

Page 3

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	Neal O’Connor
Date of last notice	3 November 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 (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	RONNOCO (QLD) PTY LTD FAMILY S/F A/C>
Date of change	12 March 2026
No. of securities held prior to change	379,460 shares: • Direct: Nil • Indirect: 379,460 316,668 unquoted options
Class	Ordinary shares
Number acquired	43,860
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$0.57 per share ($25,000)

• 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 after change	423,320 shares: • Direct: 43,860 • Indirect: 379,460 316,668 unquoted 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	Shares purchased from participation in December 2025 Placement as approved by shareholders at the General Meeting on 23 February2026.

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
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 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

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

Page 2

Appendix 3Y Change of Director’s Interest Notice

If prior written clearance was provided, on what date was this n/a provided?

Date of Notification: 17 March 2026

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

Page 3

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	Stephen Stroud
Date of last notice	3 November 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 (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Accretion Capital Pty Ltd; Accretion Capital Pty Ltd (beneficial holder);
Date of change	12 March 2026
No. of securities held prior to change	477,658 shares: • Direct: 151,755 • Indirect: 325,903 500,001 Unquoted Options
Class	Ordinary Shares
Number acquired	35,088
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$0.57 per share ($20,000)
No. of securities held after change	512,746 shares: • Direct: 186,843 • Indirect: 325,903 500,001 Unquoted Options

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

Page 1

Appendix 3Y Change of Director’s Interest Notice

Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy- back	Shares purchased from participation in December 2025 Placement as approved by shareholders at the General Meeting on 23 February2026.

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
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: 17 March 2026

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y

Page 2