Amerigo Resources Ltd., through its subsidiary, Minera Valle Central S.A., produces and sells copper and molybdenum concentrates in Chile. It has a contract with National Copper Corporation (Codelco) to process the tailings from El Teniente, which is an underground copper mine; and an agreement to process a supplementary source of tailings from the old tailings impoundment. The company was formerly known as Golden Temple Mining Corp. and changed its name to Amerigo Resources Ltd. in March 2002.