BIOTRON LIMITED — Board/Management Information 2026

Mar 29, 2026

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

30 March 2026

The Manager Companies ASX Limited 20 Bridge Street SYDNEY NSW 2000

(3 pages by email)

Dear Sir / Madam

APPOINTMENT OF NON-EXECUTIVE DIRECTOR

The Board of Biotron Limited (‘Biotron’ or the ‘Company’) is pleased to announce the appointment of Graeme Wald as Non-Executive Director, effective today.

Graeme is an Industrial Chemist and has worked as a research chemist in South Africa, Israel and the USA. He became an equities analyst and while at Merril Lynch was rated the top analyst in the Pharmaceuticals and Healthcare sector in South Africa and was a member of the top-rated Global Paper & Pulp research team. In Australia he played a leading role in growing Wilson HTM’s Life Science business to the largest in the country while Head of Lifescience research. He has extensive experience in private equity and venture capital as an Investment Director at BioScience Managers, and a Partner in Fund III at OneVentures.

He has played a major role in raising more than $750M for companies in the sector and was Chairman of the Risk & Audit Committee of Nexvet Inc. while a director of the company through to its NASDAQ listing. He was also founding Chairman of Prota Therapeutics Pty Ltd and acting CEO. He is also CEO and Director of MyrioTherapeutics Pty Ltd, a Melbourne based antibody drug company developing novel antibodies for the treatment of solid tumours and is Chairman of Psaio Therapeutics, also Melbourne based that is developing novel antibodies for the treatment of prostate cancer based on Myrio technology. He is Chairman of US based Hula Therapeutics, a private company in the clinical stage of developing a treatment for paediatric neuroblastoma, using technology partly developed by Myrio

Biotron’s Chairman, Michael Hoy said “Graeme Wald is a welcome addition to the Biotron Board. He adds substantial expertise and experience at an important stage of the Company’s new project developments.”

In accordance with Listing Rule 3.19A, I attach an Appendix 3X, Initial Director's Interest Notice, for Graeme Wald.

This announcement has been approved by Biotron Board of Directors.

Yours faithfully,

Michelle Miller Managing Director

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Appendix 3X Initial Director’s Interest Notice

Rule 3.19A.1

Appendix 3X

Initial 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 30/9/2001.

Name of entity	BIOTRON LIMITED
ABN	60 086 399 144

We (the entity) give ASX the following information under listing rule 3.19A.1 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	GRAEME WALD
Date of appointment	30 MARCH 2026

Part 1 - Director’s relevant interests in securities of which the director is the registered holder

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.

Number & class of securities

497 Ordinay Shares

• See chapter 19 for defined terms.

11/3/2002

Appendix 3X

Appendix 3X Initial Director’s Interest Notice

Part 2 – Director’s relevant interests in securities of which the director is not the registered holder

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

	Name of holder & nature of interest Note: Provide details of the circumstances giving rise to the relevant interest. Zebra235 Pty Ltd (Where the director holds a beneficial interest)	Number & class of Securities 97,675,714 Ordinary fully paid shares 97,676 Performance shares.

Part 3 – 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
No. and class of securities to which interest relates	N/A

• See chapter 19 for defined terms.

11/3/2002

Appendix 3X