On October 24, Hunan Yinqiao Technology Co., Ltd.'s quotation for sodium metabisulfite is 2,250 yuan/ton. The specification of sodium metabisulfite includes: application grade: industrial grade; main content (as Na2S2O5), ω/%, ≥: 96.5. The validity period of this quotation is three days. The quoting party is Jiaen Chemical (Shandong) Co., Ltd.