According to the data of SunSirs, the PP market was stable on December 29, and the spot prices of various brands were mainly sideways. According to the price of SunSirs, the mainstream offer price of T30S (wire drawing) from domestic manufacturers and traders is about 8,150 RMB/ ton. In the upstream, the price of propylene increased slightly compared with last week, boosted by the upward shock of crude oil; However, the thermal coal market is weak, which is bad for coal quality PP. The cost side generally supports pp. at present, the follow-up of PP demand is relatively slow, the industry load is high and the supply is sufficient. At present, the social inventory position of PP is OK, but there is little news of stock preparation before the festival. It is expected that the spot price of PP in China may continue to operate in a weak and stable market.