NMDC Ltd. engages in the business of exploring and extracting various minerals including iron ore, copper, rock phosphate, limestone, dolomite, gypsum, bentonite, magnesite, diamond, tin, tungsten, graphite, and beach sands. It operates under the Iron Ore, and Pellets, Other Minerals, and Services segments. The company was founded on November 15, 1958 and is headquartered in Hyderabad, India.