This document is Primero Mining's 2012 sustainability report. It summarizes the company's achievements and challenges in 2012, its second full year of operating the San Dimas mine in Mexico. The report discusses Primero's commitment to sustainability practices across economic, social, and environmental areas. It provides an overview of the company's governance structure and policies regarding ethics, health and safety, communities, and the environment. Key highlights from 2012 include record financial performance, expansion of the San Dimas mill, and progress toward acquiring the new Cerro del Gallo project.