Mitsui Engineering & Shipbuilding Co. is a Japan-based manufacturing company engaged in four core business segments. The Ship segment designs, manufactures, sells and leases ships. The Steel Structure Construction segment is engaged in the construction, installation and repair of bridges, penstocks and steel structures, as well as supply wind-generated electric power. The Machinery segment offers products such as Power electronics equipment, ion implanters for liquid crystal display (LCD) panels and solar light collectors.