On January 13, the acetic anhydride market continued its upward trend. The ex-factory price offered by mainstream manufacturers in the Shandong region was 4,250–4,300 yuan per ton, an increase of 50 yuan per ton. Actual transactions are subject to negotiation. PriceSeek's analysis of acetic anhydride, with a long-short score of 1: The spot price of acetic anhydride rose by 50 yuan per ton, with mainstream manufacturers in the Shandong region quoting 4,250–4,300 yuan per ton ex-factory. The market continued to rise, indicating strong demand or tight supply, which is favorable for spot prices. This increase reflects improved market confidence, and prices are expected to continue rising in the short term. It is recommended to monitor downstream procurement dynamics.