On October 18, Shandong Kailong Chemical Technology Development Co., Ltd.'s quotation for sodium metabisulfite is 2100 yuan/ton. The specifications of sodium metabisulfite are: application grade: industrial grade; main content (calculated by Na2S2O5), w/% ≥: 96.5. The validity period of the quotation is 3 days. Quotation provider: Shandong Yushuo Chemical Co., Ltd.