Madras Aluminium Company Ltd. (MALCO) has its own Bauxite mines in the state of Tamil Nadu, at Yercaud (Salem district) having reserves of 0.8 million tonnes and Kolli Hills (Namakkal district) having reserves of 0.9 million tonnes. The Company has an integrated Aluminium Complex at Mettur comprising 40,000 tpa of Aluminium Smelter, 80,000 tpa Alumina Refinery, Captive Power Plant (CPP) of 75MW (3 x 25 MW) and associated metal casting and fabrication facilities.