On October 28, the quoted price for sodium metasodate in Shanghai Ma Lu is 2100 RMB per ton. The specification of sodium metasodate includes: grade of application level: food grade; main content (calculated by Na2S2O5), ω/% ≥: 97.0. The validity period of this quote is three days. The provider of this quote is Shanghai Jiading Ma Lu Chemical Plant Co., Ltd.