China domestic PS market fell by 20-100 RMB/ ton. The center of gravity of upstream styrene is low, the market continues to reduce prices and ship goods, the local low transaction is slightly better, and the overall situation is general. Most of the northern markets also cut prices and shipped goods, and some rose. According to statistics, the price of permeating benzene in Yuyao market is 9,500-11,300 RMB/ ton, and that of changing benzene is 11,850-12,850 RMB/ ton.