Macusani Yellowcake and Southern Andes to Host Conference Call to Discuss Proposed Merger

TORONTO, ONTARIO--(Marketwire - Feb. 6, 2012) - Macusani Yellowcake Inc. (TSX VENTURE:YEL)(FRANKFURT:QG1) ("Macusani") and Southern Andes Energy Inc. (TSX VENTURE:SUR) ("Southern Andes") will hold a conference call to discuss the proposed merger announced on February 3, 2012. Peter Hooper, Macusani's President and CEO, and Nick Tintor, President and CEO of Southern Andes will co-chair the call.

A summary presentation of the merger transaction can be found at: http://www.macyel.com/merger/.

Full transaction details can be found the jointly issued press release dated February 3, 2012. The press release is available from the Macusani and Southern Andes websites as well as on www.sedar.com.

About Macusani Yellowcake Inc.

Macusani Yellowcake Inc. is a Canadian uranium exploration and development company focused on the exploration of its properties on the Macusani Plateau in south-eastern Peru. The Company owns a 99.5% interest in concessions which cover over 24,000 hectares (240 km²) and are situated near significant infrastructure. Macusani Yellowcake is listed on the TSX Venture Exchange under the symbol 'YEL' and the Frankfurt Exchange under the symbol 'QG1'. For more information please visit www.macyel.com.

About Southern Andes Energy Inc.

Southern Andes Energy Inc. is focused on exploring and developing uranium resources to meet the world's growing demand for clean energy. The Company is the largest landowner in the emerging Macusani Uranium District in Peru with holdings of more than 65,000 hectares (650 km²) of land. The Company owns a 7% equity interest in Macusani Yellowcake Inc., and also a 65% interest in Caracara Silver Inc., (TSX VENTURE:CSV) which has been created to advance and develop the Company's extensive silver and zinc projects in Peru.

Forward Looking Information

This news release includes certain forward-looking statements concerning the future performance of Macusani's and Southern Andes' business, operations and financial performance and condition, as well as management's objectives, strategies, beliefs and intentions. Forward-looking statements are frequently identified by such words as "may", "will", "plan", "expect", "anticipate", "estimate", "intend" and similar words referring to future events and results. Forward-looking statements are based on the current opinions and expectations of management. All forward-looking information is inherently uncertain and subject to a variety of assumptions, risks and uncertainties, including the speculative nature of mineral exploration and development, fluctuating commodity prices, competitive risks and the availability of financing, as described in more detail in the both companies recent securities filings available at www.sedar.com. Actual events or results may differ materially from those projected in the forward-looking statements and Macusani and Southern Andes caution against placing undue reliance thereon. Neither the companies nor their management assume any obligation to revise or update these forward-looking statements.

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