Capstone Copper Corp. operates as a copper mining company in the United States, Chile, and Mexico. It primarily explores for copper, silver, zinc, and other metals. The company owns 100% interests in Pinto Valley copper mine located in the Arizona, the United States; Mantos Blancos copper-silver mine located in the Region of Antofagasta, Chile; Santo Domingo copper-iron-gold-cobalt project located in the Atacama region, Chile; and Cozamin copper-silver mine located in the Zacatecas, Mexico. It holds 70% interest in the Mantoverde copper–gold mine located in the Region of Atacama, Chile; and a portfolio of exploration properties in Mexico. Capstone Copper Corp. is headquartered in Vancouver, Canada.