According to the monitoring data of SunSirs, the average price of PS ordinary materials at the beginning of last week was 10,966 RMB/ ton, and the average price of PS ordinary materials at the weekend was 10,966 RMB/ ton. The price was stable, up 37.08% compared with the same period of the year.

　　The domestic PS market is stable and small, affected by the low start-up of PS, the supply of goods in the market is tight, the shipping pressure of merchants is small, and the local low delivery at the beginning of the week improved slightly. However, due to the impact of the sharp decline of crude oil and the decline after the rise of styrene on Tuesday, the market risk appetite tightened again, and the profit giving shipments of merchants increased, but the overall fluctuation range was small. According to the data, on July 22, 2021, the price of benzene in East China market was 10,850-11,950 RMB/ ton, with stable month on month at the low end and stable month on month at the high end.

　　At present, downstream terminal enterprises are generally interested in high-level goods receiving, domestic sales and exports are restricted by different factors, production enthusiasm is not high, supply and demand may continue to be in a stalemate, and China PS market is expected to be consolidated in a narrow range.