On December 10, Henan Saiteng Environmental Protection Technology Co., Ltd. provided a quotation for phosphoric acid at 6,400 yuan per ton. The specifications of the product are: purpose level: industrial; grade: premium quality; content of phosphoric acid (H3PO4): 85%. The validity period of this quotation is one day. The provider of this quotation is Aite (Zhejiang) Supply Chain Management Co., Ltd.