Primero Mining Corp. (Primero) is a precious metals producer with operations in Mexico. Primero is focused on precious metals assets in the Americas through acquiring, exploring, developing and operating mineral resource properties. As of December 31, 2011, Primero had one producing property, the San Dimas Mine, located in Mexico's San Dimas district, and one exploration property, Ventanas, located in Durango state, Mexico. The San Dimas Mine consists of three underground gold and silver mining operations at Tayoltita, San Antonio (Central Block) and Santa Rita. Primero also holds 28 mining concessions at Mala Noche-Ventanas-San Cayetano (the Ventanas Project). Primero has three active, wholly owned subsidiaries include Primero Empresa Minera, S.A. de C.V., Silver Trading (Barbados) Ltd. and Primero Mining Luxembourg s.a r.l. In May 2013, Primero acquired Cerro Resources NL. In May 2013, the Company acquired a 19.99% interest in Santana Minerals Ltd.