Fresnillo Plc is a holding company, which engages in the production of gold and silver. It operates through the following segments: Fresnillo, Saucito, Cienega, Herradura, Soledad-Dipolos, Noche Buena, and San Julia. The Fresnillo, and Saucito segments are located in the state of Zacatecas, an underground silver mine. The Cienega segment includes San RamÃ³n satellite mine which are both located in the state of Durango, an underground gold mine. The Herradura, and Noche Buena segments are located in the state of Sonora, a surface gold mine. The San Julian segment operates on the border of Chihuahua/Durango states, an underground silver-gold mine. The company was founded on August 15, 2007 and is headquartered in Mexico City, Mexico.