MITSUI E&S Co., Ltd. provides investment holdings in engineering, construction, and shipbuilding services. It operates through the following segments: Ship, Marine Development, Machinery, Engineering, and Others. The Ship segment builds and repairs various types of ships and offshore development equipment including bulk carriers, crude oil tankers, reefers, high-speed passenger ships, container ships, underwater equipment and iron steel structures. The Marine Development segment constructs floating oil and gas production facilities. The Machinery segment manufactures marine and stationary diesel engines, marine equipment, blowers, process compressors, industrial boilers, process equipment, induction heaters, container cranes, industrial cranes, container terminal management systems. The Engineering segment handles chemical plants, oil refinery plants, overseas civil works, renewable energy power generation business, power plant, water treatment plants, waste treatment plants, resources recycling plants and PCB waste treatment facilities. The Others segment includes diesel power plant construction, transport equipment, system development, real estate rental businesses. The company was founded on November 14, 1917 and is headquartered in Tokyo, Japan.