NK Co., Ltd. engages in the manufacture and sale of high pressure gas and fire fighting equipment. It operates through the following Business Divisions: Fire Extinguishing Equipment, Ballast Water Treatment Equipment, Offshore Plant, and High Pressured Gas Container. The Fire Extinguishing Equipment division offers Co2, foam, loose fire fighting, and dry powder systems. The Ballast Water Treatment Equipment division offers NK O3 system. The High Pressured Gas Container division provides industrial high pressured gas container, special industrial container, portable automotive container, and others. The company was founded in January 1980 and is headquartered in Busan, South Korea.