On November 4, Hunan Yinqiao Technology Co., Ltd.'s quoted price for sodium metabisulfite is 1700 RMB per ton. The specifications of sodium metabisulfite include: usage level: industrial grade; main content (as Na2S2O5), ω/% ≥: 96.5. The validity period of this quote is 3 days. The quote provider is Guangzhou Tianyu Chemical Co., Ltd.