Hitachi Zosen Corp. engages in the design and construction of environmental systems, industrial plants, industrial machinery, process and infrastructure-related equipment, disaster prevention systems, and precision machinery. It operates through the following segments: Environmental Systems and Industrial Plants, Machinery, Process Equipment, Infrastructure, Precision Machinery, and Other Businesses. The Environmental Systems and Industrial Plants segment includes environmental protection systems, desalination and potabilization plants, chemical plants, and water treatment systems. The Machinery segment produces marine diesel engines, marine deck and press machineries, and boilers. The Process Equipment segment handles pressure vessels and nuclear-related equipment. The Infrastructure segment constructs bridges, water gates, and shield tunneling machines. The Precision Machinery segment deals with the production of machinery for plastic, food, pharmaceutical, precision instruments, electronics and control systems. The Other Businesses segment manages transportation, warehousing, and cargo handling. The company was founded by Edward H. Hunter on April 1, 1881 and is headquartered in Osaka, Japan.