Woojin I&S Co., Ltd. engages in the construction and machinery equipment production activities in South Korea, rest of Asia, the United States, Europe, and internationally. The company offers semi-con, system, spiral, and transverse duct flange ducts, as well as ROTOFLON lining and hook-up pipes and fittings. It also provides fluororesin, ethylene tetra fluoro ethylene, CPT, and ROTOFLON lining coatings. In addition, the company constructs mechanical, fire safety, pre-fabrication-piping system, and unit pipe facilities; and hotels, stores, hospitals, cultural facilities, apartments, offices, and special construction facilities. Woojin I&S Co., Ltd. was founded in 1975 and is headquartered in Seoul, South Korea.