NK Co., Ltd. provides high-pressure gas container products in Korea and internationally. It offers various shipbuilding materials; marine extinguishing systems; and ballast water treatment systems, as well as provides aluminum and steel helidecks, fuel LNG tanks, and jumbo cylinder retests. The company also designs, manufactures, and constructs onshore and offshore plant facilities. In addition, it offers high-pressure gas containers, tube trailers, ultra-low temperature storage containers, gas-based and water-based extinguishing systems, gas supply systems, form extinguishing equipment, etc. The company was founded in 1980 and is based in Busan, South Korea.