The Caserones Project is located 162 kilometers to the southeast of Copiapó, in the third Region of Atacama, and 800 kilometers to the north of Santiago. It is inside a mining zone measuring 42,555 hectares.
The mineral reserves of the project total 1,047 million tons of sulfides with an average copper grade of 0.34 percent and 126 ppm of molybdenum in a mine that is at a maximum altitude of 4,600 masl. The ore is mined in an open pit and the facilities include a concentrator plant (Primary Crusher and Milling and Flotation Circuits) to produce copper and molybdenum concentrates. The concentrator plant is located in the Caserones Ravine between an altitude of 3,810 and 4,100 masl.
The ore is crushed in the primary gyratory crusher and carried to a coarse mineral stockpile near the milling plant. A SAG mill of 40-foot diameter with an installed capacity of 32,000 HP is used for milling as well as two ball mills of 27-foot diameter, each with an installed capacity of 27,000 HP. A total of 3,141 million tons of fine copper in concentrates and 86,440 tons of molybdenum fines will be produced during the useful life of the future operation, estimated to be 28 years.
Leachable reserves total 336 million tons with an average copper grade of 0.3 percent. They are treated at a solvent extraction and electrowinning (SX-EW) plant (located to the east of the Concentrator Plant, in the upper sector of the Caserones Ravine). Copper cathodes are produced by PLS solution processing at the Dump Leach. The dump leach is estimated to produce around 411,000 tons of copper cathodes over a period of 25 years.