Toho Acetylene Co., Ltd.. The Group's principal activity is the production and sales of industrial gases and wholesale of liquefied petroleum gases and gas related equipment. The operations involve oxygen, nitrogen, liquefied petroleum gas, dissolved acetylene gas, hydrogen, argon, carbon dioxide and other industrial gases and petroleum products. The operations also involve welding implements and supplies, kitchen equipment, gas containers, construction works, medical equipment, machinery and insurance agency business. Gas related operations accounted for 61% of fiscal 2002 revenues; Gas appliances, 29% and Other, 10%.