According to the company’s website on July 17, 2015, Semirara Mining Corporation, formerly Semirara Coal Corporation, was incorporated on February 26, 1980 to explore, develop, and mine the coal resources on Semirara Island.

On April 7, 1980, Semirara Mining became the assignee of the coal operating contract pursuant to Presidential Decree No. 972, otherwise known as “The Coal Development Act of 1976,” which was then awarded by the Energy Development Board, now the Department of Energy on July 11, 1977, to a consortium formed by three private companies covering 5,500 hectares track of land. In June 1983, the contract was amended by an agreement of the parties, which gave the Corporation exclusive rights to conduct exploration, development and coal mining operations on Semirara Island in Antique Province until 2012.