On November 20th, Changzhou Yangtze Sulfur Co., Ltd. provided a quotation for sulfuric acid at 980 yuan/ton. The specifications of the sulfuric acid are: grade: qualified product; quality fraction of sulfuric acid /% ≥: 98; product grade: industrial-grade; type: concentrated sulfuric acid. The validity period of the quotation is 3 days. The quoting entity is Changzhou Yangtze Sulfur Co., Ltd.