On October 23, Hunan Yingqiao Technology Co., Ltd.'s quotation for sodium metabisulfite is 1700 RMB/ton. The specification of sodium metabisulfite: usage level: industrial grade; main content (as Na2S2O5), ω/% ≥: 96.5. The validity period of this quotation is 3 days. Quotation provider: Guangzhou Tianyue Chemical Co., Ltd.