UELM

industrial chemicals; namely, hydrogen peroxide used as a bleaching agent for fiber and pulp in the wood industry, and for cotton, wool, silk, and other fibers in the textile industry, for food stuffs in the food industry, as an oxidizing agent in the metal fabricating industry and in the mining industry, as an etching agent for printed circuit boards, as a cleaning agent in the manufacture of semiconductor chips, for treating of waste water of all kinds, and as a raw material in the chemical industry; aqueous ammonia for use as a raw material in the manufacture of fertilizer, synthetic resins, and dye stuffs, as a cleaning agent in the manufacture of semiconductor chips, and for use as a refrigerant in freezing and cooling installations in industry; and positive type photo-resist developers for use in the manufacture of semiconductor chips