The main raw material of PTA is PX, which is extracted from crude oil. Therefore, PTA futures prices are closely related to crude oil prices. Crude oil prices fluctuate greatly, so PTA prices fluctuate greatly, and companies without financial strength cannot engage in PTA. Of course, the price of futures is also related to many other things, such as the inventory situation of PTA company (sometimes artificially hoarding goods to raise prices, etc.) ), the downstream demand of PTA, that is, the economic environment and so on. The downstream of PTA is mainly polyester, which is the raw material of clothes. The raw materials of clothes are mostly polyester and cotton. You should know that polyester is used more and cotton is used less.