Purchase of South Benkala Copper Project

 9 May 2011

Frontier Mining Ltd

("Frontier" or the "Company")

Purchase of South Benkala Copper Project

Frontier Mining Ltd (AIM: FML), the AIM listed gold and copper exploration and development Company focused on Kazakhstan and Russia, announces today that it has signed a Sale and Purchase agreement to acquire the Subsurface Use Contract for the mining deposit known as South Benkala from PromSnab2030 LLP for a total consideration of US $2.5 million.

Frontier has purchased a substantial asset at what management believes to be a highly competitive price. The South Benkala deposit is located approximately 10 kilometres south of the Company's existing Benkala license area and whilst the sale is subject to the Republic of Kazakhstan declining to use its pre-emptive right to acquire, the Company believes the same conclusion will be reached as taken regarding its existing Benkala application. A C2 reserve estimation was done by Soviet geologists in 1979 using drilling data from holes drilled in 1978-79 and showed:-

Deposit reserves (Cu cut off 0.25%) as estimated in 1979 to 658m depth (author I.V.Gachkevich)

The deposit has been purchased for a price of $2.5 million, with an initial 20% down payment and the remainder payable once due diligence and government approval is obtained. Whilst the Oxide (Secondary) ore is largely accessible the deposit is crossed by a railway line that restricts access to approximately 40-50% of the Sulphide (Primary) deposits. In order to access all deposits this railway line will need to be relocated between approximately four to seven years from commencement of mining operations at an estimated cost of approximately $12 million.

The Company will now consider two options: to either extend the life of the SX-EW plant at Benkala from 7 to 11 years, or to increase the production capacity of the Benkala plant from 20,000 to 30,000 tonnes per year.

Erlan Sagadiev, CEO of Frontier Mining, commented: "We are extremely excited to have had the opportunity to acquire the South Benkala deposit. The synergies with our existing Benkala deposit are obvious and the Company will now consider seriously whether, with no substantial additional cost, it should extend the SX-EW plant's life or increase capacity. Either way, this acquisition marks a very significant step for the Company and will allow us to move forward."

Note:

The historic Soviet C2 reserves disclosed above have not been prepared in accordance with an internationally recognised standard, are based on historical data and are included for information only. No assurance can be given that any resources or reserves which the Company may report to an internationally recognised standard in the future will be in line with these estimates or that the tonnages and grades referred to will be achieved.

For further details please contact:

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.

The Maminskoye license area is situated in the southern Ural region of Russia and consists of three deposits: Maminskoye, Gabievskoye and Bezimyanny-Vostochny. Of these, the Maminskoye deposit is the most explored but is the smallest at 300m wide, 650m long and to a known depth of over 250m. The other two deposits are considerably larger and display similar geological characteristics to the Maminskoye deposit but have not had extensive exploration as yet.

The Gabievskoye deposit has a strike length of 5km with an average width of between 500-700m. The Bezimyanny-Vostochny deposit hosts three veins which have previously been mined on a small scale with reported gold grades of between 6-63g/t. The structure of this deposit is analogous to Gabievskoye. However, at this time, the strike extent and width of this target remains unknown.

The Maminskoye ores have been subjected to extensive metallurgical analysis with gold recovery estimated at 93.5% for the oxide ore and 92.5% for the primary ore. The CPR, completed by WAI in June 2010, evaluated a preliminary project model contemplating development of an open pit mine operating at an initial mining rate of 700ktpa for the first three years, increasing to 1Mtpa for a 14 year project life. Based on an estimated capital cost of $75 million and a $950/oz gold price WAI estimated an attractive project, with a NPV of $110.9 million using a 10% discount rate and IRR of 48% with a 3 year payback.

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.