February 9 Yantai Wanhua Maleic Anhydride Auction: The East China session failed to close. PriceSeek Analysis of Maleic Anhydride, Bull-Bear Score: -1. The unsuccessful auction indicates weak market demand, reflecting sluggish trading activity in the maleic anhydride market in East China. This may be due to buyer hesitation or oversupply, putting downward pressure on spot prices. This event has a moderately bearish impact on the maleic anhydride spot market in the short term, and sellers may need to lower prices to stimulate trading activity.