On October 21, Hubei's quoted price for phosphoric acid was 6,850 yuan per ton. The specifications of the phosphoric acid include: application level: industrial grade; grade: premium quality; content of phosphoric acid (H3PO4) in the product: 85%, through heat method. The validity period of this quote is three days. The provider of the quote is Bao Zhen Chemical (Shandong) Co., Ltd.