成本支撑走弱，聚烯烃震荡走低

Report Industry Investment Rating - Unilateral: Neutral; Inter - period: 09 - 01 reverse spread; Cross - variety: Short coal - based profit [3] Core View - International crude oil prices are continuously declining with further decline expected, weakening the cost support for polyolefins. Upstream petrochemical plants' devices are restarting, increasing supply, while downstream demand remains in the off - season, resulting in a loose supply - demand balance [2] Summary by Directory 1. Polyolefin Basis Structure - Analyzed the trends of plastic and polypropylene futures' main contracts and the basis between LL East China and the main contract, as well as PP East China and the main contract [1][8][11] 2. Production Profit and Operating Rate - PE operating rate is 77.8% (-1.7%), PP operating rate is 76.6% (-0.8%). PE oil - based production profit is 167.1 yuan/ton (-5.0), PP oil - based production profit is -222.9 yuan/ton (-5.0), and PDH - based PP production profit is 245.0 yuan/ton (+52.5) [1] 3. Polyolefin Non - Standard Price Difference - Compared the price differences between HD injection molding - LL East China, HD blow molding - LL East China, etc. [32][40][41] 4. Polyolefin Import and Export Profit - LL import profit is -177.5 yuan/ton (-44.5), PP import profit is -672.8 yuan/ton (-24.7), and PP export profit is 34.2 US dollars/ton (+3.0) [1] 5. Polyolefin Downstream Operating Rate and Downstream Profit - PE downstream agricultural film operating rate is 12.6% (+0.5%), PE downstream packaging film operating rate is 48.1% (-0.4%), PP downstream plastic weaving operating rate is 42.0% (-0.2%), and PP downstream BOPP film operating rate is 60.6% (+0.3%) [1] 6. Polyolefin Inventory - Analyzed the inventories of PE and PP in oil - based enterprises, coal - chemical enterprises, traders, and ports [73][78][88]