Tokyo Koatsu Co., Ltd engages in the manufacture and sale of industrial gas, sale of molten metal equipment, chemicals, and semiconductor-related equipment and consumables. It operates through two reportable segments: Industrial Gas and Welding Equipment Business, and e Fine Products Business. The Industrial Gas and Welding Equipment Business involves in the sale of chemical products, such as various industrial chemicals, synthetic resin products, high-purity chemicals, and aluminum products. The Fine Products Business engages in the sale of chemical products, such as various industrial chemicals, synthetic resin products, high-purity chemicals, and aluminum products. The company was founded on June 6, 1972 and is headquartered in Tokyo, Japan.