Toyo Gosei (formerly known as Nihon Acetylene Chemical Engineering) is a manufacturer, seller, and distributor of photolithography photosensitive materials. It offers purity photoacid generators and resins, electrolytes and ionic liquids, aroma chemicals, shampoos, polymer products, high-purity synthetic solvents, baby soaps, etc. The company also offers storage management, distribution, and warehousing services.