On December 18, Shandong Kailong Chemical Technology Development Co., Ltd. provided a quote for sodium metabisulfite at 1900 yuan per ton. The specification of sodium metabisulfite includes: usage level: industrial grade; main content (calculated as Na2S2O5), ω/%, ≥: 96.5. The validity period of the quote is three days. The quote provider is Shandong Jinsheng Run Chemical Co., Ltd.