EXPLANATORY NOTE - Southern Copper Corporation
copper mine, a copper ore concentrator, a SX/EW plant, a smelter, refinery and rod plant. Mexicana de Cananea S.A. de C.V. (together with its subsidiaries, the "Cananea Unit") operates an open-pit copper mine, which is located at the site of one of the world's largest copper ore deposits, a copper concentrator and two SX/ EW plants.