On October 30, Shanxi Xiangfen Longten Da Chemical Co., Ltd.'s quote for butane dicarboxylic acid (顺酐) is 6,000 yuan/ton. The specifications of the butane dicarboxylic acid are: grade: premium; butane dicarboxylic acid content: ≥99.5%; process: benzene oxidation method. The validity period of this quote is 3 days. The quoting entity is Jinan Aocheng Chemical Co., Ltd.