NS United Kaiun Kaisha, Ltd. engages in the provision of marine transportation services. It operates through the following business segments: International Shipping, Coastal Shipping, and Others. The International Shipping segment handles the overseas transportation of iron ore, steel products, non-ferrous ore through loading vessels and crude oil and liquefied petroleum gas (LPG) through tankers. It also manages the rental of ships. The Coastal Shipping segment deals with the domestic transportation of steel products, limestones, cement through loading vessels and LPG through tankers. The Others segment includes the information service business. The company was founded on April 1, 1950 and is headquartered in Tokyo, Japan.