On November 10, Changzhou Yangtze Sulfuric Acid Co., Ltd. provided a quotation for sulfuric acid at 950 yuan per ton. The specifications of the sulfuric acid include: grade: qualified product; mass fraction of sulfuric acid/% ≥: 98%; product grade: industrial-grade; type: concentrated sulfuric acid. The validity period of this quotation is three days. The quoting entity is Changzhou Yangtze Sulfuric Acid Co., Ltd.