WOOJIN Inc. engages in the production and sale of industrial measuring machines and control devices. It operates through the following business divisions: Nuclear Power, Plant, and Temperature Sensors, Instrumentational Maintenance and Industrial Instrumentation. The Nuclear Power business division focuses on the supply of measuring instruments for maintenance of nuclear power plants. The Plant business division refers to automation devices, CMS, and vibration sensors. The company was founded by Lee Sung-Bum on May 13, 1980 and is headquartered in Hwaseong-si, South Korea.