On December 31, the bulk price of acetic anhydride from Shandong Hualu Hengsheng was reported at 4,220 yuan/ton, up by 60 yuan/ton, with actual transaction prices subject to negotiation. PriceSeek analysis of acetic anhydride, with a long-short score of 1, indicates that the spot price of acetic anhydride has increased by 60 yuan/ton to 4,220 yuan/ton, suggesting tightening market supply or strengthening demand, which is favorable for spot prices. In the short term, this may drive further upward movement in the spot price of acetic anhydride, and the upward adjustment in corporate quotations reflects an improvement in market transaction willingness.