On November 18, Shandong Kailong Chemical Technology Development Co., Ltd.'s quotation for sodium metabisulfite is 2,100 yuan/ton. The specification of sodium metabisulfite includes: usage grade: industrial grade; main content (calculated based on Na2S2O5), ω/%, ≥: 96.5. This quotation is valid for 3 days. Quotation provider: Shandong Yushuo Chemical Co., Ltd.