Sale of Maminskoye

 28 July 2011

Frontier Mining Ltd

("Frontier" or the "Company")

Sale of Maminskoye gold deposit for $37 million

Benkala funding secured

Frontier Mining Ltd (AIM: FML), the AIM listed copper and gold exploration and development company focused on Kazakhstan, is pleased to announce that it has sold its Maminskoye gold deposit in Russia to Stanhigh Limited of Cyprus ("Stanhigh"). Frontier was paid $37.45 Million in cash for the asset.

The Maminskoye property was acquired by Frontier as part of its acquisition of Coville Intercorp Ltd (Coville) assets in 2010, which consolidated Frontier's and Coleville's interests in the Benkala copper deposit in Kazakhstan and contributed Coleville's 100% owned Maminskoye project. The asset has a current Russian Federation Certified C1 & C2 resource of 27,177 kilos of gold. Maminskoye is located in the Southern Ural mountain chain region. Following the consolidation of Frontier and Coville, management has been evaluating options for development of the Maminskoye deposit and had received a number of approaches from several qualified parties. Given the location of the property, the development capital required to convert the resource and property into a financeable project, our strategic focus on Kazakhstan and management's and the Company's 100% commitment to developing Benkala, the Board and management believe this sale to be an excellent opportunity to realise a return on the Company's investment and to secure the immediate aims of the Company.

Erlan Sagadiev, CEO of Frontier Mining, commented: "The sale of Maminskoye represents a transformational transaction for Frontier shareholders. Following our consolidation with Coville, we have steered Frontier towards becoming a solid Kazakh focused copper producer with a substantial project pipeline. Our recent acquisition of the South Benkala deposit is consistent with this strategy. Although we have been excited about the potential at Maminskoye, its potential has not at all been reflected in Frontier's share price and the development of Maminskoye would have been an extended and expensive effort outside of our home region. Importantly, the sale provides Frontier with all the capital required to launch the Benkala SX-EW project. I believe that uncertainty about Frontier's capacity to complete Benkala has weighed on our share price and that this monetization of value will encourage investors to focus on the significant value that Frontier offers to investors."

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Notes to Editors

About Frontier Mining Ltd:

Frontier Mining Ltd. is a mineral exploration and development Company that is incorporated in the Cayman Islands for the purpose of exploring and developing gold and copper deposits in the Republic of Kazakhstan. Through its subsidiaries and affiliates, Frontier locates, evaluates, acquires, explores and develops mineral properties.

Frontier currently owns two licenses in Kazakhstan. They are the Naimanjal exploration and mining licence, held by FML Kazakhstan, and U.S. Megatech BVI which holds the Benkala licence, via KazCopper LLP. FML Kazakhstan is a wholly-owned subsidiary of Frontier Mining Ltd.

In Kazakhstan, Frontier has one producing gold mine, Koskuduk; and a 100% interest in the Benkala copper mine, currently under development with initial production planned in 2011. Frontier also owns the Maminskoye gold deposit in the southern Ural region of Russia currently under exploration.

A Competent Persons Report ("CPR") completed by Wardell Armstrong International ("WAI") in June 2010, estimated the oxide section of the Benkala project, which represents development of only ~10% of the total resource at Benkala, to have a NPV of $190 million, based on 0.5% diluted copper grade, 63% recovery and 185,000 tons of contained metal at a 6,000 USD per tonne copper price. Frontier will use the production platform of the SX-EW project to finance further evaluation and technical studies required to advance development of the significant Benkala sulphide resource.

Frontier also has a potential copper porphyry deposit with associated gold and molybdenum, Baitimir; and several copper/gold prospects along a 25-km trend including both VMS and porphyry types. Metallurgical tests on its Beschoku and Yubileiny copper projects confirm the oxide copper ore is amenable to extraction using low cost SX-EW technology.

Frontier maintains an administrative and technical office in Almaty, the former capital city of Kazakhstan and the main business centre in the southeast. The Company also maintains offices in Semipalatinsk and Aktyubinsk, close to the Naimanjal and Benkala operations respectively.

Issued Share Capital

Frontier Mining's shares are traded on the AIM market of the London Stock Exchange.

Frontier has 1,860,913,973 ordinary shares issued.

For further information please visit: www.frontiermining.com.