Mitsubishi Kakoki Kaisha, Ltd. engages in the engineering, procurement, and construction of various industrial and chemical plants and environmental control facilities in Japan, rest of Asia, and internationally. It operates through Engineering and Machinery segments. The Engineering segment includes city gas and petroleum related plants, chemical engineering plants, hydrogen generation plants, sewage treatment equipment, industrial effluent treatment equipment, diverse water treatment equipment, corrosion resistant containers made of fiber-reinforced plastic (FRP) and other products. The Machinery segment offers oil purifiers, separators and filtration machinery, seawater screening facility, mixers and related products. The company also provides belt dehydrators, cleaners, concentrators, strainers, heat exchangers, towers, vessels, ballast water treatment systems, dryers, filters, and SOx scrubber systems. The company was formerly known as Kakoki Seisaku, Ltd. and changed its name to Mitsubishi Kakoki Kaisha, Ltd. in 1938. Mitsubishi Kakoki Kaisha, Ltd. was founded in 1935 and is headquartered in Kawasaki, Japan.