National Aluminium Co. Ltd. engages in the manufacture and sale of metallurgical grade alumina. It operates through the Chemical and Aluminium segment. The Chemical segment includes Calcined Alumina, Alumina Hydrate, and related products. The Aluminium segment covers the aluminium ingots, wire rods, billets, strips, rolled, and related products. The company was founded on January 7, 1981 and is headquartered in Bhubaneswar, India.