Located in the state of Zacatecas. It is an open pit mine; its ores are mined through heap leaching in bed and recovered by carbon adsorption and electrolysis and later melted into dore bars with saleable gold and silver content. The expansion project was concluded in 2014; it consisted of the installation of a new crushing circuit with a capacity of 30,000 additional tons per day, with enlargement of pits and bed formation. Current capacity is 55,000 tons per day. This unit produces dore bars with saleable gold and silver content.