On October 31, Shandong Kailong Chemical Technology Development Co., Ltd.'s quotation for sodium metabisulfite is 2000 RMB/ton. The specifications of sodium metabisulfite are: usage grade: industrial level; main content (calculated as Na2S2O5), w/%, ≥: 96.5. The validity period of this quotation is 3 days. Quotation provider: Shandong Jinsheng Run Chemical Co., Ltd.