On October 28, Shandong Kailong Chemical Technology Development Co., Ltd.'s quotation for sodium dithionite is RMB 2,250/ton. The specification of sodium dithionite is: application grade: industrial level; main content (calculated based on Na2S2O5), ω/%, ≥: 96.5. The validity period of the quotation is 3 days. The quoting party is Jianen Chemical (Shandong) Co., Ltd.