KOATSU GAS KOGYO CO., LTD. is a Japan-based company involved in the gas and chemical business. The Gas segment is engaged in the purchase, manufacture and sale of high pressure gas including dissolved acetylene gas, oxygen, nitrogen, argon gas and carbon dioxide gas, as well as liquefied petroleum gas (LPG), which are used in construction works, bridge works, shipbuilding and machinery. This segment also provides gas equipment. The Chemical segment is engaged in the purchase, manufacture and sale of instant adhesives, including synthetic resin emulsion that is used as adhesives, paint coatings, construction work materials and bonding adhesives, as well as chemical-related raw materials and sub-related materials. This segment is also engaged in the water coating works. The Others segment provides large-scale integration (LSI) cards and peripheral devices.