Fresnillo plc mines, develops, and produces non-ferrous minerals in Mexico. It operates through seven segments: Fresnillo, Saucito, Ciénega, Herradura, Noche Buena, San Julián, and Juanicipio. The company primarily explores for silver, gold, lead, and zinc concentrates. Its projects include the Fresnillo and Saucito mines in Zacatecas, the Ciénega mine in Durango, the Herradura and Noche Buena mines in Sonora, the San Julián mine on the Chihuahua/Durango border, and the Juanicipio mine in Zacatecas. It also leases mining equipment, produces lead, silver, and zinc concentrates and silver precipitates, produces gold/silver doré bars, and provides exploration and administrative services. Founded in 1887 and headquartered in Mexico City, Mexico, Fresnillo plc is a subsidiary of Industrias Peñoles, S.A.B. de C.V.