On December 9, Shandong Kailong Chemical Technology Development Co., Ltd. provided a quotation for sodium metabisulfite at 2000 RMB/ton. The specification of sodium metabisulfite is as follows: Usage level: Industrial grade; main content (calculated by Na2S2O5), ω/%, ≥: 96.5. The validity period of the quotation is 3 days. The provider of the quotation is Shandong Jinsheng Run Chemical Co., Ltd.