Sustainable Strategies accompanied Cementos Progreso in developing their first Sustainbility Report in 2012 applying the GRI G3 Guidelines. Based on existing internal sustainability management, we identified in multiple workshops with the core team the core sustainability issues and themes to include in the report. Subsequently, our work with Cementos Progreso included initial phases of defining the scope, length, content, and focus of the report in order to revue these issues and themes appropriately. On this occasion, the report was prepared for stockholders.