On April 29, Panjin Ruide Chemical Co., Ltd. reported that its phthalic anhydride plant has a capacity of 100,000 tons. The unit is operating at a low rate, with limited inventory. The ortho-xylene-based phthalic anhydride price is quoted at 8,800 RMB/ton, showing a decline. According to Chempricehub's assessment, the bullish-bearish score for phthalic anhydride is -1.5. Low operating rates and limited inventory indicate tight supply, but the price of ortho-xylene-based phthalic anhydride at 8,800 RMB/ton and its downward trend suggest that weak market demand is the dominant factor. The company may be reducing prices to clear inventory, resulting in significant downward pressure on spot prices in the short term.