key points of analysis: the price on the 13th was 2.41% higher than the previous trading day. the price of mixed xylene tends to stabilize at a high level, while the price of raw materials of ortho-xylene is temporarily stable; the price of external market fluctuated and rose, the price difference between internal and external market was large, and the profit after the price of o-xylene rose was acceptable; the nstream price of phthalic anhydride rose, but the plasticizer market rose weakly, and the nstream rise of o-xylene was not supported enough. the transaction of o-xylene still needs to be watched.

　　future forecast: the cost is temporarily stable and the nstream demand is limited. it is expected that the price of ortho-xylene will stabilize in the future.