CORDOBA, ARGENTINA--December 5, 2008--Researched by Industrial Info Resources (Sugar Land, Texas)--Compania Minera Coimolache SA (Lima, Peru), a joint venture formed by Southern Copper Corporation (NYSE:PCU) (Phoenix, Arizona), Compania de Minas Buenaventura SA (NYSE:BVN) (Lima) and Espro SA (Lima), is moving forward with the $1 billion Tantahuatay gold and copper project in Peru. The project is located about 50 kilometers northwest of Cajamarca in northern Peru.