On October 28, Zibo Qixiang Tengda Chemical Co., Ltd.'s quoted price for maleic anhydride is 6700 yuan per ton. The specifications of maleic anhydride are: process: catalytic decomposition of n-butane. This quoted price is valid for 3 days. The provider of the quoted price is: Shandong Zhongke Taihua New Material Co., Ltd.