Fresnillo Plc is a holding company, which engages in the development and exploration of precious metals, reserves and resources, and mines. It operates through the following segments: Fresnillo, Saucito, CiÃ©nega, Herradura, Soledad-Dipolos, Noche Buena, and Others. The Fresnillo, and Saucito segments are located in the state of Zacatecas, an underground silver mine. The CiÃ©nega 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 Others segment comprises of the operations at San JuliÃ¡n located on the border between the states of Chihuahua and Durango. The company was founded on August 15, 2007 and is headquartered in Mexico City, Mexico.