On May 20, the maleic anhydride market in Shandong region saw an upward trend. The ex-factory price of solid maleic anhydride ranged from 7,300 to 8,000 CNY/ton, while the ex-factory price of liquid maleic anhydride ranged from 7,500 to 7,800 CNY/ton. Meanwhile, ex-factory prices of maleic anhydride in Northeast China also increased. According to Chempricehub’s analysis, the bull/bear score for maleic anhydride stands at 1. The regional spot trading focus has shifted upward, providing general supportive influence on spot maleic anhydride prices.