December 26th News: On December 26th, Panjin Ruide Chemical Co., Ltd.'s phthalic anhydride plant has a capacity of 100,000 tons. The ortho-xylene-based phthalic anhydride equipment is shut down, while the naphthalene-based phthalic anhydride equipment is operating normally, with limited inventory. The quoted price for naphthalene-based phthalic anhydride is 5,550 yuan per ton, an increase of 140 yuan per ton. Chempricehub's analysis of phthalic anhydride shows a bullish-bearish score of +1. The article indicates that Panjin Ruide Chemical's ortho-xylene-based phthalic anhydride equipment is shut down, while the naphthalene-based phthalic anhydride equipment is operating normally but with limited inventory, leading to a price increase of 140 yuan per ton to 5,550 yuan per ton for naphthalene-based phthalic anhydride. This reflects supply-side constraints (partial capacity shutdown), and low inventory may exacerbate market tightness, driving prices up amid demand support. This event generally favors spot prices of phthalic anhydride, as reduced short-term supply may push up market transaction prices. The bullish-bearish score of +1 indicates a generally positive impact.