Antenor F. Silva

Yamana Gold, Inc. engages in the production of gold, silver, and copper. It operates through the following segments: El Peñón, Canadian Malartic, Jacobina, Minera Florida, Cerro Moro, and Corporates and Other. The company was founded by Peter J. Marrone on March 17, 1994 and is headquartered in Toronto, Canada.

Amarillo Gold Corp. engages in the acquisition, discovery, and development of gold resources in Brazil. Its projects include Mara Rosa and Lavras do Sul. The company was founded by Bruce Bragagnolo on January 19, 1983 and is headquartered in Toronto, Canada.

Vaaldiam Resources Ltd. is a Canadian based diamond mining and exploration company listed on the Toronto Stock Exchange (symbol: VAA) with two producing mines in Brazil and advanced exploration projects in Brazil and Canada. Vaaldiam holds 100% interest in the Duas Barras and Chapada alluvial diamond mines. The combined average price for the run of mine production is in the order of US$245 per carat which positions Vaaldiam's operations amongst the highest value diamond producers in the world.

Santa Elina Mines Corp is a Brazilian company that provides mineral mining services.