The Antaorco Mine is located in the district of Limbani, province of Sandia, department of Puno. Access to the mine is from Lima – Juliaca – Crucero – Antaorco Mine. The mine is located 4 hours from the port of Ilo.

The mine is located in metallogenic strip III associated with deposits of Lithium, Uranium, Tungsten, Tin, Molybdenum, Gold, Copper, Lead and Zinc. The veins of the Antaorco mine are located within granite bodies belonging to the Upper Jurassic Aricoma Pluton.

Structurally, it is made up of sulphide quartz veins with galena, chalcopyrtia and arsenopyrite content, the strength of the structure is variable, ranging from 0.30m to 2.00m. The main vein outcrops along 100m. with a bell tower of more than 180m.