On September 25, Tangshan Huayi Industrial Co., Ltd.'s quotation for maleic anhydride is priced at RMB 6,300 per ton. The specifications of maleic anhydride: grade: premium quality; content of maleic anhydride: ≥99.5%; process: benzene oxidation method. The validity period of this quotation is three days. Quotation provider: Jinan Aocheng Chemical Co., Ltd.