Philex Mining Corporation (the Company) was incorporated in the Philippines in 1955 to engage primarily in mining activities. Its shares are listed in the Philippine Stock Exchange.

The Company has continuously operated since 1958 the Sto. Tomas II deposit at Padcal, Tuba, Benguet.  The Padcal mine is the first underground block cave operation in the Far East.  Total ore mined to 2009 has reached 340.4 million tonnes, producing 5.3 million ounces of gold, 2.0 billion pounds of copper, and 5.8 million ounces of silver.

In 1996, the Company commenced commercial operation of the Bulawan gold mine in Negros Occidental under subsidiary Philex Gold Philippines, Inc. (PGPI). The mine was eventually decommissioned in 2002 and since then placed on care and maintenance.

From 2001, PGPI focused on its Surigao property where the Boyongan and Bayugo  copper-gold porphyry deposits were discovered and explored under Silangan Mindanao Mining Company. The Silangan Project is currently in its prefeasibility study stage. 

In 2005, Brixton Energy & Mining Corporation was incorporated to own, explore and develop the Company’s coal property in Diplahan, Zamboanga. In 2007, Philex Petroleum Corporation (PPC) was incorporated to engage in petroenergy business. The Company and PPC effectively control 64.98% of Forum Energy plc (FEP), a UK-based company listed at the Alternative Investment Market of the London Stock Exchange. FEP is an oil exploration company owning participating interests in several service contracts in the Philippines, particularly SC 72 which covers the Sampaguita natural gas discovery in northwestern Palawan.