While the Minera Esperanza Plant was being built, PUMA participated in various projects from the very beginning: Engineering and construction of the Integrated Operations Center (COI), Sampling and Laboratory Complex (CML), Maintenance workshop for the Plant (TMP), Main warehouse. Miscellaneous civil and electromechanical works, such as reinforcement of the concrete thickener TK-01, Support in the commissioning and start-up of the plant. Replacement of 1,500 coated spools of the plant´s piping.