Last year, the U.S. Mining Safety and Health Administration issued 49 citations and 12 safety orders at the Jerritt Canyon mine after two employees were injured in an electrical explosion and fire in December 2012. The violations included blocked emergency escape routes, faulty pressure-relief valves and improperly stored hazardous chemicals at the operation. The company also has mines in British Columbia and the Yukon Territory, but its primary holdings are in Nevada.