Mitsui O.S.K. Lines Ltd. engages in the provision of marine transport services. It operates through the following segments: Dry Bulk, Energy Transport, Product Transport, Associated Businesses and Others. The Dry Bulk segment includes dry bulkers, oil tankers, LNG carriers, and car carriers. The Energy Transport segment covers the tankers, steaming coal carriers, LNG carriers and offshore business. The Product Transport segment comprises of containerships, ferries and coastal RoRo ships. The Associated Businesses segment includes real estate, cruise ship, tug boats and trading. The Others segment handles the ship maneuvering, management, shipping, finance and shipbuilding. The company was founded on December 28, 1942 and is headquartered in Tokyo, Japan.