On January 6, the maleic anhydride market in Shandong region experienced a slight increase. The ex-factory price of solid maleic anhydride hovered around 4,950 yuan per ton, while the ex-factory price of liquid maleic anhydride was around 4,550 yuan per ton. The auction transaction price in Yantai rose by 60 yuan per ton, with market transactions primarily driven by rigid demand.