On October 21st, Shandong Kailong's quotation for sodium metabisulfite was $2,000/ton. The product specifications include: usage level: industrial grade; main content (calculated as Na2S2O5), ω/%, ≥: 96.5. The validity period of this quotation is three days. The provider of the quotation is Shandong Fusheng Yong Trading Co., Ltd.