On October 28, Hunan Yinqiao Technology Co., Ltd. provided a quotation for sodium metaperiodate at 2,250 RMB per ton. The specification of sodium metaperiodate includes: usage level: industrial grade; main content (calculated as Na2S2O5), ω/%, ≥: 96.5%. The validity period of the quotation is three days. The quoting entity is Jiaen Chemical (Shandong) Co., Ltd.