One. Official website information shows that the production enterprise of red bull potassium sulfate compound fertilizer is Xuzhou Red Bull Potassium Sulfate Co., Ltd., located in Sanli Village, Ahu Town, xinyi city. The business scope of Xuzhou Red Bull Sulfate Potash Fertilizer Co., Ltd. is to produce potassium sulfate, compound fertilizer, potash fertilizer, phosphate fertilizer and microelement fertilizer.