May 21 News. On May 21, the bulk price of acetic anhydride at Shandong Hualu Hengsheng was reported at 5,800 yuan/mt, down 100 yuan/mt, with final transaction prices subject to negotiation. Market sentiment was muted, and acetic anhydride prices trended downward in consolidation. Chempricehub assesses acetic anhydride with a bullish-bearish score of -1. On the spot market, on May 21, Shandong Hualu Hengsheng reduced its bulk acetic anhydride offer by 100 yuan/mt to 5,800 yuan/mt. Current trading sentiment in the market remained subdued, and acetic anhydride prices generally showed a consolidating downward trend, exerting a generally bearish impact on its price.