Mitsubishi Heavy Industries, Ltd. engages in the manufacture and sale of ships, industrial machinery, and aircraft. The company is headquartered in Chiyoda-Ku, Tokyo-To and currently employs 77,274 full-time employees. The firm operates through four segments. Energy Segment is engaged in the design, manufacturing, sales, services and installation of thermal power generation systems, nuclear power generation systems, wind power generation systems, aircraft engines. Plants & Infrastructure Segment is engaged in the design, manufacturing, sales, services and installation of steelmaking machinery, merchant ships, engineering, environmental equipment and mechanical systems. Logistics, Thermal & Drive Segment is engaged in the design, manufacturing, sales, services and installation of logistics equipment, heat and cooling products, engines, turbochargers and others. Aircraft, Defense & Space Segment is engaged in the design, manufacturing, sales, services and installation of civil aircraft, defense aircraft and others.