Immuron Ltd — Capital/Financing Update 2012

Jun 5, 2012

==> picture [193 x 41] intentionally omitted <==

==> picture [145 x 83] intentionally omitted <==

6 June 2012

The Manager The Company Announcement Office Australian Stock Exchange Sydney NSW 2000

Dear Sir

Expiry of Unlisted IMCAM – 31 May 2012 Options

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

The details of the options are as follows:

• Number of options – 2,657,143

• Exercise price - $0.10

Immuron Limited currently has the following unlisted options on issue:

• 658,785 options (class IMCAJ) expiring 30 June 2012;

• 2,460,000 options (class IMCAA) expiring 31 August 2012;

• 750,000 options (class IMCJB2) expiring 31 May 2013;

• 4,000,000 options (class IMCSO) expiring 30 June 2014; and

• 20,525,873 options being the maximum number of ordinary shares that may be issued to Paladin Labs Inc under the terms of the convertible debenture entered into in January 2012, expiring in January 2015.

Yours Faithfully

==> picture [207 x 99] intentionally omitted <==

Graeme Stevens

Company Secretary

1