MEMPHASYS LIMITED. — Director's Dealing 2025

Dec 28, 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	Memphasys Limited
ABN	33 120 047 556

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	Marjan Mikel
Date of last notice	27 October 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.		Mikel Enterprises Pty Ltd Fund A/C> Mikel Enterprises Pty Ltd Mr Mikel is a director of the above entity.
Date of change		(1) 19 December 2025 (2) 19 December 2025
No. of securities held prior to change		Direct 2,090,000 Fully paid ordinary shares Indirect 4,082,125 Fully paid ordinary shares held by Mikel Enterprises Pty Ltd Fund A/C> 3,000,000 Fully paid ordinary shares held by Mikel Enterprises Pty Ltd

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

Class	(1) Fully paid ordinary shares (1) Free attaching unlisted options, exercisable at $0.011 each, expiring 5 November 2026. (2) Alignment Options, exercisable at $0.004 each, expiring 19 December 2027 (2) Alignment Options, exercisable at $0.005 each, expiring 19 December 2027 (2) Alignment Options, exercisable at $0.007 each, expiring 19 December 2027
Number acquired	(1) 6,666,667 Fully paid ordinary shares (1) 1,666,667 Free attaching unlisted options, exercisable at $0.011 each, expiring 5 November 2026 (2) 6,500,000 Alignment options, exercisable at $0.004 each, expiring 19 December 2027 (2) 8,500,000 Alignment options, exercisable at $0.005 each, expiring 19 December 2027 (2) 10,000,000 Alignment options, exercisable at $0.007 each, expiring 19 December 2027
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	(1) $0.003 per Share ($20,000) (1) Nil – free attaching unlisted options (2) Nil (2) Nil (2) Nil

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

No. of securities held after change		Direct 8,756,667 Fully paid ordinary shares 1,666,667 Free attaching unlisted options, exercisable at $0.011 each, expiring 5 November 2026 6,500,000 Alignment options, exercisable at $0.004 each, expiring 19 December 2027 8,500,000 Alignment options, exercisable at $0.005 each, expiring 19 December 2027 10,000,000 Alignment options, exercisable at $0.007 each, expiring 19 December 2027 Indirect 4,082,125 Fully paid ordinary shares held by Mikel Enterprises Pty Ltd Fund A/C> 3,000,000 Fully paid ordinary shares held by Mikel Enterprises Pty Ltd
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy- back		(1) Issuance of Tranche 2 Placement shares and free attaching unlisted options as approved by shareholders at the Annual General Meeting of the Company held on 20 November 2025, pursuant to Resolution 9. (2) Issuance of Alignment Options, as approved by shareholders at the Annual General Meeting of the Company held on 20 November 2025, pursuant to Resolution 21.

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

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No. and class of securities to which N/A
interest related prior to change
Note: Details are only required for a contract in
relation to which the interest has changed
Interest acquired N/A
Interest disposed N/A
Value/Consideration N/A
Note: If consideration is non-cash, provide details
and an estimated valuation
Interest after change N/A
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Part 3 –[+] Closed period

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

• See chapter 19 for defined terms.

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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	Memphasys Limited
ABN	33 120 047 556

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	Dr Lindley Edwards
Date of last notice	27 November 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
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	N/A
Date of change	19 December 2025
No. of securities held prior to change	Nil
Class	Fully paid ordinary shares
Number acquired	5,848,840 fully paid ordinary shares
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	Deemed issue price of $0.003 per Share
No. of securities held after change	5,848,840 fully paid ordinary shares

• See chapter 19 for defined terms.

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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 buyback

Issue of shares in lieu of a physical cash payment of Directors fees, as approved by shareholders at the Company’s Annual General Meeting held on 20 November 2025, pursuant to Resolution 17.

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.

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----- Start of picture text -----

Detail of contract N/A
Nature of interest N/A
Name of registered holder N/A
(if issued securities)
Date of change N/A
No. and class of securities to which N/A
interest related prior to change
Note: Details are only required for a contract in
relation to which the interest has changed
Interest acquired N/A
Interest disposed N/A
Value/Consideration N/A
Note: If consideration is non-cash, provide details
and an estimated valuation
Interest after change N/A
----- End of picture text -----

Part 3 –[+] Closed period

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

• See chapter 19 for defined terms.

Appendix 3Y Page 2

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