Galena, Kansas taking the present name of Galena in 1877, which is named after the lead ore galena found in the area. The city was part of the tri state mining area and had over 30,000 inhabitants. After the mines closed in the 1970s, population decreased. The Jayhawk Ordnance Works northwest of Galena, built during World War II, was a large ordnance plant producing ammonium nitrate. After the war it was privatized by its operator Kenneth Aldred Spencer and at one point was the world's largest producer of ammonium nitrate fertilizer in the world. It would form the basis for the Spencer
National Mineral Development Corporation National Mineral Development Corporation </nowiki> NMDC Limited, previously known as National Mineral Development Corporation, is an Indian state-controlled mineral producer. It is 72.43% owned by the Government of India, under the administrative control of the Ministry of Steel. It is involved in the exploration of iron ore, copper, rock phosphate, limestone, dolomite, gypsum, bentonite, magnesite, diamond, tin, tungsten, graphite etc. It is India's largest iron ore producer and exporter producing more than 35 million tons of iron ore from 3 fully mechanized mines in Chhattisgarh and Karnataka. It also operates the only mechanized diamond mine in the country at Panna