March 2, News: On March 2, Tongling Chemical Industry Group's phthalic anhydride capacity is 80,000 tons. The o-xylene-based phthalic anhydride unit is operating normally, while the naphthalene-based phthalic anhydride equipment is undergoing shutdown maintenance, resulting in low inventory. The o-xylene-based phthalic anhydride is quoted at 6,400 yuan/ton, an increase of 300 yuan/ton. Chempricehub analysis of phthalic anhydride, long-short score: 2. The article indicates that phthalic anhydride supply is tight, with the shutdown maintenance of naphthalene-based equipment leading to low inventory. Meanwhile, the o-xylene-based phthalic anhydride price has risen by 300 yuan/ton to 6,400 yuan/ton, reflecting strong demand and a shortage of spot supply. This constitutes a significant positive factor for spot prices, and it is expected that prices will continue to rise in the short term.