On January 28, the maleic anhydride market in Jiangsu region remained stable. The ex-factory price for solid maleic anhydride was around 4,950 yuan per ton, while the ex-factory price for liquid maleic anhydride was around 5,050 yuan per ton. The auction transaction price in East China increased slightly by 10 yuan per ton, and the surrounding market conditions also showed a slight upward trend.