March 31, Xinhua News Agency reported: On March 31, the phthalic anhydride (PA) unit at Changzhou Xinyang, with a capacity of 100,000 tons, operated at less than 50% utilization. The manufacturer's inventory remained low, and the PA price was quoted at 9,550 yuan/ton, an increase of 200 yuan/ton. Chempricehub's analysis of PA indicates a bullish-bearish score of 1. The operation rate of Changzhou Xinyang's PA unit being below 50% and low inventory levels suggest a significant reduction in supply. The price increase of 200 yuan/ton to 9,550 yuan/ton reflects tight supply-demand conditions in the spot market, which is favorable for spot prices. Under supply constraints, short-term prices are likely to continue rising.