On October 28th, Henan Saiteng Environmental Protection Technology Co., Ltd.'s quote for phosphoric acid is 6,600 yuan/ton. The specification of the phosphoric acid includes: usage level: industrial grade; grade: premium; content of H3PO4 in the phosphoric acid (H3PO4): 85%. The validity period of this quote is three days. The quote provider is: Nantong Zhonghe Chemical New Materials Co., Ltd.