BIOTRON LIMITED — Capital/Financing Update 2022

Nov 6, 2022

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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

7 November 2022

The Manager Companies ASX Limited 20 Bridge Street Sydney NSW 2000

(1 page by email)

Dear Madam

CLARIFICATION OF FRACTIONAL ENTITLEMENTS

I refer to the Proposed Issue of Securities announcement dated 27 October 2022 and advise that all fractional entitlements will rounded up to the nearest whole number.

Yours sincerely

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Peter J. Nightingale Company Secretary

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