ORBMINCO LIMITED — Capital/Financing Update 2012

Feb 28, 2012

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23 February 2012

ASX Release

By e-lodgement

UNLISTED OPTIONS EXPIRE

Australian-American Mining Corporation N.L. (“Company” and ASX: AIW) wishes to advise that the following unlisted options to acquire fully paid ordinary shares in the Company have not been exercised and expired on 18 February 2012:

• 100,000 options over ordinary shares with an exercise price of $6.00 each, exercisable on or before 18 Febuary 2012.

Sincerely,

Jim Malone

Company Secretary

Australian American Mining Corporation NL ABN 99 073 155 781 PO Box 1788, West Perth, WA, Australia, 6872 572 Hay Street, Perth, WA, Australia, 6000 Telephone: (08) 9325 5568, Facsimile (08) 93255574