January 8th News: On January 8th, Tongling Chemical Industry Group's phthalic anhydride production capacity is 80,000 tons. The ortho-xylene-based phthalic anhydride plant is operating normally, while the naphthalene-based phthalic anhydride equipment is temporarily shut down for maintenance. Inventory is low, with ortho-xylene-based phthalic anhydride quoted at 6,000 yuan/ton. The price has increased, and sales are limited. Chempricehub analysis of phthalic anhydride, bullish-bearish score: 2. The temporary shutdown of Tongling Chemical Industry Group's naphthalene-based phthalic anhydride equipment for maintenance has led to an overall reduction in supply. With low inventory, the quotation for ortho-xylene-based phthalic anhydride has risen to 6,000 yuan/ton, and sales are limited, indicating a supply shortage in the market. This will significantly drive up the spot price of phthalic anhydride, as supply constraints combined with strong demand create a significant positive driver.