The domestic EPS market fell slightly. Pure benzene and styrene fell slightly, EPS sales were under pressure, and prices fell slightly. In addition to the tight supply of goods in the South China market, the supply of goods in other regions is relatively loose, and the follow-up of terminal demand is insufficient. Most operators are cautious and wait-and-see, and the on-site supply circulation is slow. As of December 23, the ordinary materials of Jiangsu sample enterprises were 9,200 RMB/ ton, a month on month decrease of 200 RMB/ ton, a decrease of 2.13%, and the resistance fuel was 10,100 RMB/ ton, a month on month decrease of 200 RMB/ ton, a decrease of 1.94%.International crude oil may rise slightly, and the delivery at the end of the month may boost the mentality of styrene and pure benzene merchants. The supply side and demand side, the demand in the northeast and northwest are significantly weakened, the demand in East China is poor, and the demand in South China and southwest is weakened. It is expected that the market demand of EPS in China will decrease slightly this week.