On October 27, the price for sodium metasulfite in Hunan is priced at 1,600 yuan per ton. The specifications of sodium metasulfite are: purpose level: industrial grade; main content (calculated as Na2S2O5), ω/%, ≥: 96.5. The validity period of this price is three days. The provider of the price quote is Guangzhou TianYue Chemical Co., Ltd.