Great Panther Mining Limited operates as a precious metals mining and exploration company. It explores for gold, silver, copper, lead, and zinc ores. The company operates three mines, including the Tucano gold mine in Amapá State, Brazil; and the Guanajuato mine complex and the Topia mine in Mexico, as well as Coricancha mine complex in the central Andes, Peru. Its exploration properties also include the El Horcón, Santa Rosa, and Plomo projects in Mexico.