Ningbo Zhejiang Jiangning Chemical Co., Ltd.'s quotation for maleic anhydride on October 16th is 5600 RMB/ton. Maleic anhydride specifications: 99.7% min (solid anhydride). The validity period of the quotation is 3 days. Quotation provider: Qingdao Chengxin Hongfeng Chemical Co., Ltd.