Profile: Sino-Linchem Co., Ltd specializes in the manufacture of phosphoric acids. We are an ISO 9001:2000 certified company. Our products include food & technical grade phosphoric acid, monoammonium phosphate and polyphosphoric acid. Monoammonium phosphate is used as a fire-extinguishing agent for fabric, woods and paper. It is mainly used as a fermentation agent for food additives. It is also used as a raw material for producing water soluble fertilizer NPK or used as nitrogen and phosphorous fertilizer for irrigation.