Mark A. Lettes

The Group's principal activity is that of a mining development and exploration company. It currently focuses its resources primarily on the development of San Cristobal Project in Bolivia. San Cristobal is an open-pit silver-zinc-lead deposit, containing approximately 450 million ounces of silver, eight billion pounds of zinc and three billion pounds of lead in proven and probable reserves. San Cristobal is expected to produce approximately 17 million ounces of silver, 225,000 tonnes of zinc and 82,000 tonnes of lead per year on a payable basis in the first five years of operation. The project currently has sufficient reserves to operate for approximately 16 years with a current design capacity of 40,000 tonnes of ore per day. The Group also holds an extensive portfolio of highly prospective exploration properties located primarily in the traditional precious metals-producing regions of Argentina, Peru, Mexico and Bolivia.

Century Mining Corp. engages in the exploration and mining of gold. The company was founded on May 14, 1985 by Margaret M. Kent and is headquartered in Blaine, WA.

Yukon Zinc Corp. explores and develops metals. Its properties include the silver rich Wolverine, finlayson, and rancheria districts deposits. The company was founded in 2004 and is headquartered in Vancouver, Canada.

General Moly, Inc. is an exploration company. The firm engages in the exploration, development and mining of properties containing molybdenum. Its properties include the Mount Hope and Liberty molybdenum projects. The company was founded on November 23, 1925 and is headquartered in Lakewood, CO.