Philex Mining Corporation, together with its subsidiaries, engages in the exploration, development, and utilization of mineral resources in the Philippines. It holds interests in the Padcal mine that produces copper concentrates containing copper, gold, and silver located in Benguet province; and the Silangan project covering the Boyongan and Bayugo deposits located in Surigao del Norte. Philex Mining Corporation was incorporated in 1955 and is headquartered in Mandaluyong, the Philippines.