Purchase Arrangement Finalized

August 23, 2011

Bisha Mining Share Company is pleased to advise that its shareholders have finalized their arrangements regarding the purchase of 30% of the Company by the Eritrean National Mining Corporation (Enamco) from Nevsun Resources. The agreed price is US$253.5 million, less applicable income taxes, which will be settled from the after tax cash flows generated by the Bisha mine.

The purchase price determination was subject to a process involving two independent international institutions that were mutually appointed by Nevsun and Enamco in January 2011.  It should be noted that the purchase price is not indicative of the fair market value of Bisha but rather the outcome of a price determination process, defined in a 2007 shareholder agreement, based on parameters of the Bisha deposit as it was understood in 2007.

Enamco’s ownership interest will effectively pay for itself without a separate use of government funds. A formula has been agreed whereby a substantial portion of the cash generated by the Bisha mine that would otherwise be paid to Enamco will go to Nevsun until the purchase price is paid in full. The balance is expected to be settled over a period of approximately 2 years, depending mainly upon future metals prices and output from the Bisha mine.

While the current mine life is approximately 13 years, management looks to increase the mine life as it continues to drill out additional mineralization in and around the Bisha mine.

Bisha’s Chairman Cliff Davis states “Enamco has been an excellent partner in Bisha. The Government of Eritrea has significantly contributed to the project, both financially and through the board of directors of Bisha Mining Share Company, as well as through the support of the Ministry of Energy & Mines, Ministry of Finance and various other Ministries.  By collaborating with international companies, Eritrea is developing a mining industry that provides direct economic benefits, skill enhancement and supply chain expansion.  Through these cooperative efforts, sustainable development from the industry can positively impact the Eritrean economy for decades to come.”

Forward Looking Statements: The above contains forward-looking statements concerning arrangements between the company’s shareholders. Forward-looking statements are frequently, but not always, identified by words such as “expects,” “anticipates,” “believes,” “intends,” “estimates,” “potential,” “possible” and similar expressions, or statements that events, conditions or results “will,” “may,” “could” or “should” occur or be achieved. Forward-looking statements are statements about the future and are inherently uncertain, and actual achievements of the Company or other future events or conditions may differ materially from those reflected in the forward-looking statements due to a variety of risks, uncertainties and other factors. The Company’s forward-looking statements are based on the beliefs, expectations and opinions of management on the date the statements are made and the Company assumes no obligation to update such forward-looking statements in the future.

Bisha Mining Share Company

“Cliff T. Davis”

Cliff T. Davis