On January 14, the acetic anhydride market continued its upward trend. The mainstream ex-factory price of acetic anhydride in the Shandong region was quoted at 4,300–4,350 yuan/ton, an increase of 50 yuan/ton, with actual transactions subject to negotiation. PriceSeek's analysis of acetic anhydride shows a long-short score of 1.5. The spot price of acetic anhydride rose by 50 yuan/ton to 4,300–4,350 yuan/ton, continuing the upward trend, reflecting strong market demand or tight supply, which is favorable for spot prices. This increase indicates positive market sentiment, which may support further price increases in the short term, with significant favorable factors.