Hitachi Zosen Corporation (日立造船株式会社, Hitachi Zōsen Kabushiki-kaisha) is a major Japanese industrial and engineering corporation. It produces waste treatment plants, industrial plants, precision machinery, industrial machinery, steel mill process equipment, steel structures, construction machinery, tunneling machines, and power plants. Despite its name, Hitachi Shipbuilding no longer builds ships, having spun this business off in 2002.