On November 4, Wengfu Group's quote for phosphoric acid is 6500 yuan/ton. The specification of the phosphoric acid: usage level: industrial grade; grade: premium quality; content of H3PO4 in the phosphoric acid (H3PO4): 85%. The validity period of this quote is 3 days. The provider of the quoted information is Shandong Yushou Chemical Co., Ltd.