SCIDEV LTD — Director's Dealing 2026

Feb 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	SciDev Ltd
ABN	25 001 150 849

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	Dan O’Toole
Date of last notice	13 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	Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Indirect – Huon Road Pty Ltd Fund Acct> (a company of which Mr O’Toole is a Director)
Date of change	26 February 2026
No. of securities held prior to change	Indirect – 266,000 Fully Paid Ordinary shares Direct – 62,111 Fully Paid Ordinary shares
Class	Fully paid ordinary shares
Number acquired	106,000 Fully Paid Ordinary shares
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$0.2293

• See chapter 19 for defined terms.

01/01/2011

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Appendix 3Y Change of Director’s Interest Notice

No. of securities held after change Indirect – 372,000 Fully Paid Ordinary shares Direct – 62,111 Fully Paid Ordinary shares Nature of change On-market trade. Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buyback

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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Detail of contract
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
----- End of picture text -----

Part 3 –[+] Closed period

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

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

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	SciDev Ltd
ABN	25 001 150 849

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	Johannes Risseeuw
Date of last notice	16 December 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	Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Indirect – JC Risseeuw Superannuation Fund
Date of change	26 February 2026
No. of securities held prior to change	70,000 Fully Paid Ordinary shares
Class	Fully paid ordinary shares
Number acquired	80,000 Fully Paid Ordinary shares
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$0.238911
No. of securities held after change	150,000 Fully Paid Ordinary shares

• See chapter 19 for defined terms.

01/01/2011

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Appendix 3Y Change of Director’s Interest Notice

Nature of change

On-market trade.

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

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
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
----- End of picture text -----

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?	NA
If prior written clearance was provided, on what date was this provided?	NA

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

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	SciDev Ltd
ABN	25 001 150 849

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	Seán Halpin
Date of last notice	1 April 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	Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Indirect – Haldon Waste Pty Ltd which is a company controlled by the Director Indirect – Halpin Investments Tc Pty Ltd Investments Family A/C>
Date of change	26 February 2026
No. of securities held prior to change	Indirect: 3,287,500 Fully Paid Ordinary shares (2,287,500 - Haldon Waste Pty Ltd; 1,000,000 Halpin Investments Tc Pty Ltd ) Direct: 1,303,538 Performance Rights to be tested for vesting 2026 760,870 Performance Rights to be tested for vesting 2027 1,803,623 Performance Rights to be tested for vesting 2028**

• These Performance Rights were inadvertently omitted from Sean Halpin’s Appendix 3X released on 1 April 2025; notified to the market via Appendix 3G on 28 08 24 and 25 03 25

** These Performance Rights were notified to market via Appendix 3G on 21 10 25 and are subject to shareholder approval at the 2026 AGM

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

Class	Fully paid ordinary shares
Number acquired	200,000 Fully Paid Ordinary shares
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$0.23-$0.235
No. of securities held after change	Indirect: 3,287,500 Fully Paid Ordinary shares (2,287,500 - Haldon Waste Pty Ltd; 1,200,000 Halpin Investments Tc Pty Ltd ) Direct: 1,303,538 Performance Rights to be tested for vesting 2026 760,870 Performance Rights to be tested for vesting 2027 1,803,623 Performance Rights to be tested for vesting 2028
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	On-market trades.

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.

Appendix 3Y Page 2

01/01/2011

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?	NA
If prior written clearance was provided, on what date was this provided?	NA

• See chapter 19 for defined terms.

01/01/2011

Appendix 3Y Page 3