ORBMINCO LIMITED — Capital/Financing Update 2013

Feb 19, 2013

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ASX Release 20[th] February 2013

Blue Bell delivers significant near surface Cu/Au/Ag results

Highlights

• Blue Bell drilling delivers wide zones of copper/gold/silver mineralisation:

• 9m @ 2.2% Copper Equivalent* (CuEq) (1.8% copper, 0.3g/t gold and 19.6g/t silver) from 8m

• 8m @ 0.8% CuEq (0.7% copper, 0.1g/t gold and 3.3g/t silver) from 21m

• 40.4m @ 0.8% CuEq (0.7% copper, 0.1g/t gold and 5.5g/t silver) from 14m

• Zones of mineralisation includes high grade components:

• 1m @ 12.8% CuEq (11.2% copper, 0.6g/t gold and 93.2g/t silver) from 11m

• 4.5m @ 2.3% CuEq (2% copper, 0.3g/t gold and 7g/t silver) from 16m

• 3m @ 1.9% CuEq (1.4% copper, 0.3g/t gold and 19.8g/t silver) from 31m

• Further assay results expected by end of February

United States-focused diversified explorer Australian-American Mining Corporation Limited (ASX:AIW) (“AusAmerican” or “the company”) is pleased to announce that the maiden drilling program at the Blue Bell project in Arizona has returned wide zones of copper/gold/silver mineralisation.

The company has received the results from the first three holes of a 30 drill hole program. There are currently assays from 6 holes at the laboratory with results from these holes expected to be received by the end of February. Further results will be reported throughout March.

The first 3 holes of the drilling program were designed to test the down dip potential of 12BBTR05 which returned results of 38m @ 1.2% copper, 0.5g/t gold and 25.1g/t silver (1.9% CuEq).

All three holes returned 2 zones of copper/gold/silver mineralisation, as follows:

Australian American Mining Corporation Ltd ABN 99 073 155 781 572 Hay Street, Perth, WA, Australia, 6000 PO Box 1788, West Perth, WA, Australia, 6872

Telephone: (08) 9481 0799 Facsimile: (08) 9481 1927

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Drillhole	From	To	Interval(m)	Cu%	**Aug/t **	**Ag g/t **	CuEq
BBRC13001	8	17	9	1.8	0.3	19.6	2.2
including	11	12	1	11.2	0.6	93.2	12.8
BBRC13001	21	29	8	0.7	0.1	3.3	0.8
BBRC13002	10	11	1	1.6	0.2	11.8	1.9
BBRC13002	31	38	7	0.4	0.1	2.3	0.5
BBRC13003	14.4	55	40.6	0.7	0.1	5.5	0.8
including	16.2	20.7	4.5	2.0	0.3	7.0	2.3
and	31	34	3	1.4	0.3	19.8	1.9
BBRC13003	68	77	9	0.3	0.0	1.1	0.4

Figure 1 (below) shows a cross section through the ore body. All 3 holes were collared in an area which appears to be a small, backfilled open pit. Mineralisation starts immediately below the open pit fill and it is assumed a portion of the ore body has been removed by previous small scale mining activity.

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Figure 1: Blue Bell cross section showing recent drill intercepts

Australian American Mining Corporation Ltd ABN 99 073 155 781 572 Hay Street, Perth, WA, Australia, 6000 PO Box 1788, West Perth, WA, Australia, 6872 Telephone: (08) 9481 0799 Facsimile: (08) 9481 1927

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The company believes that these results further validate the exploration model of a lower grade stock work mineralisation surrounding higher grade massive sulphide lenses and support the recently published exploration target for the project (see announcement dated 13[th] August,2012).

Drilling Update

As of the time of this announcement, the company has completed 11 holes for a total of 2,300m. The fully funded initial program is planned to comprise of 30 holes for a total of 5,000m.

The company is currently awaiting the results of 6 holes which are expected to be received progressively over the next few weeks.

Commenting on the initial results of the drilling program, AusAmerican Managing Director Mr Richard Holmes said: “We are encouraged by the results of the first three holes. In particular we are pleased with the widths and grades returned so far. If these results can be repeated over the remaining holes, it will give us more confidence that a resource can be identified by Q3 2013.

“At this stage, although we are growing in confidence at the prospectivity of the project, it is early days yet and we are determined to use a conservative outlook when reporting to shareholders. We will let the project prove that it has potential on the back of the assay results that we will report to the market over the next 6-8 weeks.

“I look forward to updating shareholders when the assay results come to hand,” Mr Holmes added.

Sincerely,

Richard Holmes Managing Director

Competent Persons Statement

The information in this document that relates to exploration results is based on information compiled by Richard Holmes, Managing Director, AusAmerican Mining who is a Member of the Australian Institute of Mining and Metallurgy. Mr Holmes is a full-time employee of AusAmerican Mining and has sufficient experience which is

Australian American Mining Corporation Ltd ABN 99 073 155 781 572 Hay Street, Perth, WA, Australia, 6000 PO Box 1788, West Perth, WA, Australia, 6872 Telephone: (08) 9481 0799 Facsimile: (08) 9481 1927

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relevant to the style of mineralisation and types of deposits under consideration and to the activity which has been undertaken to qualify as a Competent Person as defined by the 2004 edition of the “Australian Code for the Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Holmes consents to the inclusion in the report of the matters based on the information in the form and context in which it appears.

*Copper Equivalent Calculation

Copper Equivalent (CuEq) represents the total metal value for each metal, multiplied by the conversion factor, summed and expressed as equivalent copper percentage. These results are exploration results and no allowance is made for recovery losses should mining eventually occur. However it is the company’s opinion that the elements considered here have reasonable potential to be recovered as evidenced by production records from previous mining activity at the project.

Copper Equivalent Formula = Cu% + Au(ppm) x 0.7292 + Ag(ppm) x 0.0146

Price Assumptions Cu (US$3/lb), Au (US$1500/oz), Ag (US$30/oz)

About Australian American Mining Corporation

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

The company’s copper/gold projects are:

• Bluebell (option to purchase 100%) - Arizona

• De Soto (option to purchase 100%) - Arizona

• San Marcos (100%, Pelican Resources earning up to 100%) - Arizona

• Bernard (90%) - Arizona

The company’s uranium projects are:

• 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/speciality metals projects:

• La Paz - Arizona.

Australian American Mining Corporation Ltd ABN 99 073 155 781 572 Hay Street, Perth, WA, Australia, 6000 PO Box 1788, West Perth, WA, Australia, 6872

Telephone: (08) 9481 0799 Facsimile: (08) 9481 1927

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• White Picacho – Arizona

ENDS

For further information, please contact: Richard Holmes Managing Director +61 8 9481 0799 rholmes@ausamerican.com

Australian American Mining Corporation Ltd ABN 99 073 155 781 572 Hay Street, Perth, WA, Australia, 6000 PO Box 1788, West Perth, WA, Australia, 6872 Telephone: (08) 9481 0799 Facsimile: (08) 9481 1927