PTA: After the National Day holiday, prices are expected to continue the upward trend. On the one hand, the price of Brent oil exceeded US$80, an increase of 3.8%, which provided strong support for the cost of PTA; on the other hand, during the National Day, the price of filament rose by 100-300 yuan/ton, and the terminal cloth factories gradually accepted the fact that upstream prices were increased. , The prices of finished products have been raised one after another, and the orders are currently acceptable, and the looms in Jiangsu and Zhejiang areas such as texturing and other links resumed after the National Day holiday. TA will continue to rise due to rising costs and rising terminal prices. Hold long position.