DE.MEM LIMITED — Director's Dealing 2026

Mar 30, 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: De.mem Limited ABN: 12 614 756 642

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	Andreas Hendrik De Wit
Date of last notice	29 January 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.		Registered holder: BNP Paribas Nominees Pty Ltd (Mr De Wit has a relevant interest in the shares as he is the beneficial owner of the shares and has the power to exercise the attaching right to _vote and the power to dispose of those shares). _
Date of change		17 March 2026
No. of securities held prior to change BNP Paribas Nominees Pty Ltd		Direct 500,000 unlisted Options, exercisable at $0.179, expiring on 5 April 2026. 2,380,952 Fully Paid Ordinary Shares Indirect 22,437,942 Fully Paid Ordinary Shares
Class		Fully Paid Ordinary Shares
Number acquired		Nil
Number disposed		Nil

• See chapter 19 for defined terms.

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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		Nil
No. of securities held after change BNP Paribas Nominees Pty Ltd		Direct 500,000 unlisted Options, exercisable at $0.179, expiring on 5 April 2026. Indirect 24,818,894 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		Transfer of Fully Paid Ordinary Shares from direct to indirect holding.

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

Part 3 –[+] Closed period

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

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011