SICHUAN POTASSIUM CO.,LTD. is a global leading supplier of potassium nitrate for agricultural and industrial purposes, phosphoric products, and speciality nutrients for agriculture. Our products include Potassium Nitrate (Crystalline) Potassium Nitrate (Prill) Potassium Nitrate (Electronic grade) Potassium Nitrate (toothpaste grade) Potassium Nitrate ceramic grade ect.monopotassium phosphite, phosphoric salts and NPK water soluble.