Immuron Ltd — Capital/Financing Update 2012

Feb 2, 2012

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ABN: 80 063 114 045 Level 1, 39 Leveson Street North Melbourne, Vic 3051 Tel: +61 3 8637 1107 Fax: +61 3 9328 1675 www.immuron.com

3 February 2012

The Manager The Company Announcement Officer Australian Securities Exchange Sydney NSW 2000

Dear Sir

Expiry of Unlisted IMCJB1 - 31 January 2012 Options

We advise that the above unlisted options were not exercised by their expiry date of 31 January 2012 and have now lapsed.

The details of the options are as follows:

• Number of options – 500,000

• Exercise price - $0.085

Yours faithfully

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Graeme Stevens Company Secretary

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