Hitachi Zosen Corporation engages in the design, construction, and manufacture of energy-from-waste plants, desalination plants, and water and sewage treatment plants in Japan and internationally. It operates through three segments: Environment, Machinery & Infrastructure, and Other. The company builds various water-related facilities, including sludge recycling centers and desalination plants, and energy-related facilities, including biomass plants, as well as engages in wind power generation. It also provides marine diesel engines, deck machinery for ships, process equipment, filter presses, industrial equipment, steel stacks, and spent nuclear fuel casks, as well as various types of precision machinery for electronics, semiconductor, food, and medical-related sectors; and engineering, procurement, construction, and after-sales services. In addition, the company engages in building, monitoring, maintenance, and repair of bridges and hydraulic gates for dams and rivers; developing shield tunneling machines for the construction of underground motorways and subway tracks, maintenance and earthquake protection systems for steel structures, electric discharge impulse crushing system, GPS comprehensive oceanographic monitoring systems, GPS remote monitoring systems, and flap-gate type seawalls against flood disaster due to tsunamis or storm surges. Further, it offers all-solid-state lithium-ion batteries and Zeolite Membrane Elements. The company was founded in 1881 and is headquartered in Osaka, Japan.