On October 28, Shandong Kailong Chemical Technology Development Co., Ltd. provided a quotation for potassium bicarbonate at 866 yuan per ton. The product specifications include: intended use level: food-grade; total alkalinity (calculated as NaHCO3), w/% ≥ 99.0~100.5%. The validity period of this quotation is three days. Quotation provider: Henan Rongyuan Food & Medical Technology Co., Ltd.