On November 15, Henan Saiteng Environmental Protection Technology Co., Ltd.'s quote for phosphoric acid is 6400 yuan per ton. The specifications of the product are: intended use level: industrial grade; grade: premium quality; content of phosphoric acid (H3PO4) in the product: 85%. The validity period of the quote is one day. The provider of the quote is: Ai Te (Zhejiang) Supply Chain Management Co., Ltd.