ABOUT US PRODUCTS COPPER COPPER IS DUCTILE Compared to other metals, copper is very ductile, meaning that it can be drawn through a tiny hole into very fine wire without breaking. Refining improves the ductility of copper so that extremely fine wires can be drawn. Impurities increase the chance that the wire will break during the drawing process. Copper conducts electricity. Only silver conducts electricity better than copper and traditionally costs 40 times the price of copper. Refining improves the conductivity of copper by lowering the electrical resistance. Resistance is like friction to electricity, and it causes energy to be lost as heat in poorly conducting wires. Improved conductivity means more energy is delivered to the desired destination when you flip that switch or turn that dial. COPPER IS RECYCLABLE More than one-third of the copper refined in the United States comes from recycled material. That’s a higher recycling rate than aluminum! Scrap copper comes from manufacturers of all sorts of copper and brass products. The copper is melted and cast into anodes and refined just like ‘new’ copper from the mines and smelters. ASARCO’S COPPER BUSINESSRESOURCESCOPPER PRODUCTS SPECSMAKING COPPER ASARCO OFFERS REFINED COPPER IN A WIDE VARIETY OF SHAPES AND SIZES Amarillo Copper Refinery’s Management/Quality Systems is ISO 9001:2000 certified. Copper production is monitored and controlled, assuring compliance with the world’s highest production standards. Systems are calibrated, controlled, and documented to affirm top quality performance and products. GRUPO MEXICO CAREERS SUPPLIER PORTAL

COMMUNITY COMMUNITY For Grupo Mexico, it is our priority to be a good neighbor in the localities close to our operations. Working together with the communities, we have the oportunity to collaborate and forge a path based on our common objectives related to social and economic development, while supporting the fulfillment on the United Nations Sustainable Development Goals. For this reason, we believe that community outreach must be based on transparency and trust, promoting long-lasting ties. COMMUNITY AT ASARCO LEARN MORE DISCOVERY CENTER LEARN MORE GRUPO MEXICO CAREERS SUPPLIER PORTAL