Mitsui Engineering & Shipbuilding Co., Ltd. is principally engaged in shipbuilding business. The Company has four business segments. The Ship and Ocean segment is engaged in the research, design, manufacturing, sale, repair and leasing of various ships. The Machinery segment is engaged in the design, manufacturing and sale of various machinery and casting products. The Engineering segment is engaged in the design, engineering, construction and sale of environment protection facilities, power plants, chemical plants and other related facilities; the operation, management and maintenance of power plants, waste treatment and water treatment plants, and the manufacture of steel structures. The Other segment is engaged in the development and design of computer software, and the manufacture of related equipment; the leasing and management of real estate; the provision of warehousing and engineering services, and the construction, installation and maintenance of various engineering works.