On October 20, Shandong Kailong Chemical Technology Development Co., Ltd. provided a quote for sodium metabisulfite at 2000 yuan/ton. The specification of the sodium metabisulfite includes: usage level: industrial grade; main content (calculated by Na2S2O5), ω/%, ≥: 96.5. The validity period of this quote is three days. The quote provider is Shandong Jinshengrun Chemical Co., Ltd.