A&B Chemical Co., Inc. is the largest independent distributor of Food Grade Sodium Tripolyphosphate (STPP) to the seafood industry. Our STPP and NUTRIFOS® 088 are produced by ICL Performance Products LP, the North American subsidiary of Israel Chemicals Ltd., (ICL). ICL is a global leader in the production of STPP and ICL performance products and offers the only light density food grade STTP produced in the United States, manufactured at our plant in Carondolet, Missouri.