Cornerstone Capital Resources Inc., through its subsidiaries, engages in the acquisition, evaluation, and exploration of mineral properties in Ecuador and Chile. The company primarily explores for gold, copper, and silver deposits. Its principal project is the Cascabel project located in northern Ecuador. The company was founded in 1997 and is based in Ottawa, Canada. As of February 24, 2023, Cornerstone Capital Resources Inc. operates as a subsidiary of SolGold Plc.