AUKING MINING LIMITED — Capital/Financing Update 2012

Nov 20, 2012

Chinalco Yunnan Copper Resources Limited Level 5, 10 Market Street Brisbane QLD 4000 GPO Box 216 Brisbane QLD 4001 Tel: +61 7 3212 6204 Fax: +61 7 3212 6250

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ASX Announcement 21 November 2012

Notification of Shortfall under Rights Issue

Chinalco Yunnan Copper Resources Limited (ASX:CYU) (Chinalco Yunnan) confirms that its 1 for 2 non-renounceable rights issue (Rights Issue) closed at 5pm (AEST) on 16 November 2012.

Chinalco Yunnan gives notice of the shortfall of subscriptions for its Rights Issue as follows:

Chinalco Yunnan received acceptances for a total of 4,988,255 new shares raising $498,825.50. It also received applications for 304,297 shares in addition to shareholders’ entitlements raising an additional $30,429.70 giving a total raised of $529,255.20 from shareholders.

All shareholders that applied for additional shares (above their entitlement) will be allocated the shares that they applied for.

The number of new shares offered under the Rights Issue was 86,679,154 shares resulting in a shortfall (before underwriting) of 81,386,602 shares (‘Shortfall Shares’).

The Offer has been underwritten up to 69,343,323 shares ($6,934,332.30) by China Yunnan Copper (Australia) Investment and Development Co. Ltd, the Company’s largest shareholder and the full amount of the underwritten shares will now be issued to the underwriter.

As disclosed in the Offer Statement, the Directors have reserved the right to place any of the remaining Shortfall Shares at the same price of $0.10 cents per share.

Paul Marshall Company Secretary

For further information please contact: Paul Marshall, Company Secretary +61 7 3212 9212 paul@cycal.com.au