On October 9, Hubei No. 7, 8, and 9 Chemical Co., Ltd.'s quotation for sodium metabisulfite is 1600 RMB/ton. The specification of sodium metabisulfite is 99% content. The validity period of the quotation is 7 days. The provider of the quotation is Hubei No. 7, 8, and 9 Chemical Co., Ltd.