Toho Acetylene Co., Ltd engages in the purchase, manufacture, and sale of high pressure gases and related equipment. It operates through the following segments: Gas-Related, Equipment-Related, Automotive Equipment-Related, and Other Business. The Gas-Related segment deals with liquefied acetylene, oxygen, nitrogen, argon, hydrogen, nitrous oxide for food additives, liquefied petroleum gas, and other gases. The Equipment-Related segment offers welding materials, welding cutting equipment, and lifestyle-related devices. The Automotive Equipment-Related segment purchases and sells equipment like production lines of auto parts manufacturers. The Other Business segment includes construction of machinery for fishery cooperatives and food manufacturers. It also handles the construction of buildings. The company was founded on September 8, 1948 and is headquartered in Tagajo, Japan.