COSMOS EXPLORATION LIMITED — Director's Dealing 2026

May 26, 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: Cosmos Exploration Limited
ABN: 27 648 890 126

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	Leo Horn
Date of last notice	14 April 2026

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.	Mr Leo Samson Horn an entity related to Mr Leo Horn.
Date of change	27 May 2026
No. of securities held prior to change
Mr Leo Samson Horn an entity related to Mr Leo Horn	1,450,000 fully paid ordinary shares
500,000 performance rights
Class	1) Unlisted options exercisable at $0.40 on or before 27 June 2029
2) Performance Rights
Number acquired	1) 500,000
2) 1,000,000
Number disposed	N/A

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

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Appendix 3Y

Change of Director's Interest Notice

Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	1) Non-cash, refer to Notice of General Meeting dated 9 April 2026. 2) Non-cash, refer to Notice of General Meeting dated 9 April 2026.
No. of securities held after change Mr Leo Samson Horn an entity related to Mr Leo Horn	1,450,000 fully paid ordinary shares 500,000 Unlisted options exercisable at $0.40 on or before 27 June 2029 1,500,000 performance rights
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	Issue of securities pursuant to Resolutions 8(d) and 9(d) of the Notice of General Meeting dated 9 April 2026.

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
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

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

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Appendix 3Y
Change of Director's Interest Notice

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
If prior written clearance was provided, on what date was this provided?	N/A

• See chapter 19 for defined terms.
  01/01/2011 Appendix 3Y Page 3