On December 10th, Hunan Yinqiao Technology Co., Ltd. provided a quote for sodium metasulfite at the rate of 1700 yuan per ton. The specification of sodium metasulfite includes: usage level: industrial grade; main content (calculated as Na2S2O5), ω/%, ≥: 96.5. The validity period of this quote is three days. The quote provider is Guangzhou Tian Yue Chemical Co., Ltd.