The Bolívar Mining Unit, acquired from Sierra Metals in 2025, is located in the state of Chihuahua, Mexico, at an altitude of approximately 1,428 meters above sea level. It is an underground polymetallic operation with a processing capacity of 5,000 tons per day and a workforce of approximately 489 employees.

The unit focuses on the extraction of copper and silver, supported by ongoing investment projects aimed at expanding plant capacity and increasing production, reinforcing operational efficiency and long-term growth.