On January 12, the ex-factory price of acetic anhydride from Shandong Yankuang was reported at 4,250 yuan/ton, an increase of 120 yuan/ton. Actual transactions are subject to negotiation, and its 100,000-ton/year plant is operating stably. PriceSeek analysis of acetic anhydride, long-short rating: 1. The ex-factory price of acetic anhydride from Shandong Yankuang increased by 120 yuan/ton to 4,250 yuan/ton, indicating improved market demand or strengthened cost support, driving up the spot price. The stable operation of the plant ensures sufficient supply without excess, which is favorable for the spot market sentiment. It is expected that prices will maintain a relatively strong trend in the short term.