Sierra Metals Inc., together with its subsidiaries, focuses on the production, exploration, and development of precious and base metals in Peru and Mexico. It primarily focuses on exploration of silver, copper, lead, zinc, and gold deposits. The company's flagship property is the 81.84% owned polymetallic Yauricocha Mine covering an area of 18,778 hectares located in the Yauyos province in Peru. It also holds 100% interest in the Bolivar mine, comprising of 12 mining concessions covering an area 15,217 hectares; and Cusi Mines that comprises of 73 concessions covering 11,977 hectares in Mexico. The company was formerly known as Dia Bras Exploration Inc. and changed its name to Sierra Metals Inc. in December 2012. Sierra Metals Inc. was incorporated in 1996 and is headquartered in Toronto, Canada.