Hongfu fertilizer grade potassium dihydrogen phosphate is real. According to relevant public information, "Hongfu" potassium dihydrogen phosphate is produced by Wengfu Group, a large state-owned enterprise. Wengfu (Group) Co., Ltd. is a large state-owned phosphorus chemical enterprise integrating phosphate ore mining, phosphate compound fertilizer, phosphorus coal chemical industry, fluorine and iodine chemical production, scientific research, trade and international project general contracting. The main products diammonium phosphate, monoammonium phosphate and potassium dihydrogen phosphate were rated as "Chinese Famous Brand Products" and "National Inspection-Free Products". The Hongfu brand trademark was rated as "China's Famous Trademark" and was awarded the "Most Popular Brand" by the Ministry of Commerce. The most competitive brand in the market."