On September 29, Shandong Kailong Chemical Technology Development Co., Ltd.'s quotation for sodium metabisulfite is 1600 yuan/ton. The specifications of sodium metabisulfite include: Usage grade: industrial level; main content (calculated based on Na2S2O5), ω/%, ≥: 96.5. This quotation is valid for 3 days. The provider of the quotation is Jinrihe Chemical Co., Ltd.