BIOTRON LIMITED — Director's Dealing 2025

Apr 9, 2025

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Level 2, 66 Hunter Street Sydney NSW 2000 Tel: (61-2) 9300 3344 Fax: (61-2) 9221 6333 E-mail: pnightingale@biotron.com.au Website: www.biotron.com.au

10 April 2025

The Manager Companies ASX Limited 20 Bridge Street SYDNEY NSW 2000

(7 pages by email)

Dear Madam,

DIRECTORS’ INTERESTS

In accordance with Listing Rule 3.19A, I attach an Appendix 3Y, Change of Director's Interest Notice, for Michael J. Hoy, Michelle Miller and Robert Thomas.

This announcement has been approved by the Managing Director, Michelle Miller.

Yours sincerely

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Peter J. Nightingale Company Secretary

pjn12590

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	BIOTRON LIMITED
ABN	60 086 399 144

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.

urposes of section 205G of the Corporations Act.
Name of Director	Michael J. HOY
Date of last notice	28 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	Indirect.
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Umbiram Pty Limited A/C> in which Michael Hoy has a beneficial interest.
Date of change	8 April 2025.
No. of securities held prior to change	11,217,352 fully paid ordinary shares held by Umbiram Pty Limited A/C>.
Class	Ordinary shares
Number acquired	11,217,353
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation.	$0.003
No. of securities held after change	22,434,705 fully paid ordinary shares held by Umbiram Pty Limited A/C>.
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back.	Ordinary shares acquired under a rights issue

• See chapter 19 for defined terms.

01/01/2011

Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

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	Nil.
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

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 thisprovided?	N/A.

• 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 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	BIOTRON LIMITED
ABN	60 086 399 144

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	Michelle Miller
Date of last notice	28 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 and Indirect.
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Michelle Miller + Peter Clarke A/C> in which Michelle Miller has a beneficial interest.
Date of change	8 April 2025
No. of securities held prior to change	1,987,500 fully paid ordinary shares held by Michelle Miller. 1,800,000 fully paid ordinary shares held by Michelle Miller + Peter Clarke
Class	Ordinary Shares
Number acquired	1,987,500 acquired by Michelle Miller. 1,800,000 acquired by Michelle Miller + Peter Clarke Clarke Super Fund A/C>
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation.	$0.003
No. of securities held after change	3,975,000 fully paid ordinary shares held by Michelle Miller. 3,600,000 fully paid ordinary shares held by Michelle Miller + Peter Clarke .
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan,participation in buy-back.	Ordinary shares acquired under a rights issue.

• See chapter 19 for defined terms.

01/01/2011

Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

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	Nil.
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

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 2

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	BIOTRON LIMITED
ABN	60 086 399 144

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	Robert B. Thomas
Date of last notice	28 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	Indirect.
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to therelevant interest.	Murtoa Flour Mills Pty Ltd in which Robert Thomas has a beneficial interest.
Date of change	8 April 2025.
No. of securities held prior to change	4,200,000 fully paid ordinary shares held by Murtoa Flour Mills Pty Ltd
Class	Ordinary Shares
Number acquired	4,200,000
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation.	$0.003
No. of securities held after change	8,400,000 fully paid ordinary shares held by Murtoa Flour Mills 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.	Ordinary shares acquired under a rights issue.

• See chapter 19 for defined terms.

01/01/2011

Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

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	Nil.
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

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.

Appendix 3Y Page 2

01/01/2011