On January 12, the acetic anhydride market showed a strong upward trend. The mainstream ex-factory price of acetic anhydride in the Shandong region was quoted at 4,200–4,250 yuan per ton, an increase of 50–100 yuan per ton, with actual transactions subject to negotiation. PriceSeek's analysis of acetic anhydride, with a long-short score of +1, indicates that the market is experiencing a strong upward movement. The ex-factory price of mainstream manufacturers in the Shandong region has increased by 50–100 yuan per ton to 4,200–4,250 yuan per ton. This suggests tight supply and demand in the spot market, with either increased demand or reduced supply, which is favorable for the spot price of acetic anhydride. A score of +1 indicates a generally positive outlook, as the price increase is moderate, reflecting a positive market sentiment without reaching the level of a significant event.