On November 12, Shouyang Tianchuang Chemical Co., Ltd. provided a quote for sodium metasodate at 2000 yuan/ton. The specification of sodium metasodate is as follows: Usage level: Industrial grade; main content (calculated as Na2S2O5), ω/%, ≥: 96.5. This quote is valid for 3 days. The provider of the quote is Jinan Jinghao Chemical Co., Ltd.