ORBMINCO LIMITED — Capital/Financing Update 2012

Aug 27, 2012

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28[th] August 2012

ASX Release By e-lodgement

New Mexico Uranium Projects Purchase Completed

Australian-American Mining Corporation Limited (“AusAmerican” or “the company”) has finalised the agreement with Kaboko Mining Limited (“KAB”) to purchase 100% of KAB’s subsidiary New Mexico Investments Limited, which via its wholly owned subsidiary Grants Ridge Inc has an interest in three uranium projects in New Mexico.

The acquisition was first announced to the market on 22[nd] May 2012 and the addition of the Kaboko projects, which are strategically located close to AusAmerican’s Rio Puerco uranium project, enables the company to increase its asset base in the Grants Mineral Belt, a prominent uranium region. The combination of these projects adds significant scope for increasing the potential size of the company’s uranium resource in the area and enabling a critical mass to be reached. Furthermore the addition of private land at Kit Carson offers a strategic alternative for potential milling sites as permitting is more favourable on private land than on BLM or state controlled land.

Sincerely,

Richard Holmes Managing Director

About Australian American Mining Corporation (“AusAmerican”)

AusAmerican is a multi-commodity internationally focused exploration company. All of its projects are currently located in the United States of America (“USA”).

The company has recently announced it has signed an option to acquire 100% of the Bluebell and De Soto VMS copper/gold/silver projects in Arizona. For more information on these projects please see the recent announcement to the ASX dated 13[th] August 2012.

The company also operates two gold projects being the San Marcos (100%) and Bernard (90%) gold projects which are both located in the state of Arizona.

Australian American Mining Corporation Ltd ABN 99 073 155 781 Level 6, 5 Mill Street, Perth, WA, Australia, 6000 PO Box 1788, West Perth, WA, Australia, 6872 Telephone: (08) 9481 0799 Facsimile: (08) 9481 1927 Web: www.ausamerican.com

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The company’s uranium projects are as follows;

• Rio Puerco (100%) - New Mexico

• Grants Ridge JV (earning 65%) - New Mexico

• Kit Carson (100%) - New Mexico

• Northern project (100%) - New Mexico

• Apex/Lowboy (100%) – Nevada

• Lone Star JV (90%) – Texas

• Apache Basin (100%) – Arizona

The company’s REE project is La Paz which is located in Arizona.

The company’s specialty metal (Lithium, rubidium, niobium and tantalum) project is the White Picacho project which is located in Arizona.

ENDS

For further enquiries please contact;

Richard Holmes Managing Director Australian American Mining Corporation Limited +61 8 9481 0799 rholmes@ausamerican.com

Australian American Mining Corporation Ltd ABN 99 073 155 781 Level 6, 5 Mill Street, Perth, WA, Australia, 6000 PO Box 1788, West Perth, WA, Australia, 6872 Telephone: (08) 9481 0799 Facsimile: (08) 9481 1927 Web: www.ausamerican.com