On February 18, the overall styrene market rose sharply. On the cost side, during the Spring Festival, oil prices continued to be positive, and the price of styrene continued to rise today. However, the pure benzene port inventory is in the decline channel, coupled with the crude oil boost, it is expected that the center of gravity of pure benzene will continue to rise in the short term, which is good for the trend of styrene. On the supply side, domestic supply remains high, but imports are low and there is room for export arbitrage. At present, there are many failures in foreign styrene plants. Meanwhile, there are plans for centralized maintenance of Asian plants in March and April. It is expected that the supply of imported goods will continue to be tight. It is expected that the pressure of domestic main ports in East China will not be great, and low inventory will continue to support the price of styrene. Downstream, with the end of the Spring Festival holiday, the demand of the three downstream gradually returned to normal level, which brought support to the price rise of styrene. Today, the price of styrene in Shandong is around 8100-8300 yuan / ton, and that in South China is around 8500-8600 yuan / ton.