Guanajuato Silver Co. Ltd. is a metal mining company, which engages in the exploration, development, acquisition, and exploitation of mineral properties. It produces silver and gold from El Cubo Mines Complex, which includes the Villalpando and Santa Cecilia mines, and Valenciana Mines complex which includes the San Ignacio mine. The company was founded on August 11, 1978 and is headquartered in Vancouver, Canada.