BIOTRON LIMITED — Director's Dealing 2017

Jul 4, 2017

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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

5 July 2017

The Manager Companies ASX Limited 20 Bridge Street SYDNEY NSW 2000

(3 pages by email)

Dear Madam,

DIRECTOR'S INTERESTS

Pursuant to Listing Rule 3.19A, I attach an Appendix 3Y, Change of Director's Interest Notice, for Robert B. Thomas.

Yours sincerely

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Peter J. Nightingale Company Secretary

pjn8987

Appendix 3Y Change of Director’s Interest Notice

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 June 2017

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.

Note: In the case of a company,interests which come withinparagraph(i)	of the definition of “notifiable interest of a director” should be disclosed in thispart.
Direct or indirect interest	Indirect.
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Robert Thomas and Kyrenia Thomas Thomas Super Fund A/C> in which Robert Thomas has an interest and Robert Bain Thomas in which Robert Thomas has an interest.
Date of change	4 July 2017.
No. of securities held prior to change	6,355,929 fully paid ordinary shares and 913,195 30 November 2018, 6 cent listed options held by Robert Thomas and Kyrenia Thomas Thomas Super Fund A/C> and 400,000 fully paid ordinary shares and 91,598 30 November 2018, 6 cent listed options held by Robert Bain Thomas .
Class	Fully paid ordinary shares.
Number acquired	144,071.
Number disposed	Nil.
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$2,737.
No. of securities held after change	6,500,000 fully paid ordinary shares and 913,195 30 November 2018, 6 cent listed options held by Robert Thomas and Kyrenia Thomas Thomas Super Fund A/C> and 400,000 fully paid ordinary shares and 91,598 30 November 2018, 6 cent listed options held by Robert Bain Thomas .

• See chapter 19 for defined terms. Appendix 3Y Page 2

01/01/2011

Appendix 3Y Change of Director’s Interest Notice

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 trade.

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

Were the interests in the securities or contracts detailed above traded during a+closed period where prior written clearance was required?	Yes.
If so, was prior written clearance provided to allow the trade toproceed during thisperiod?	Yes.
If prior written clearance was provided, on what date was thisprovided?	19 June 2017.

• See chapter 19 for defined terms. Appendix 3Y Page 2

01/01/2011