装置检修增加，供应压力有所缓解

Report Industry Investment Rating - Not provided in the given content Core Viewpoints - The supply pressure of polyolefins has been alleviated due to increased plant maintenance, new capacity from Huizhou ExxonMobil, and the "China-US tariff" benefit. However, the inventory of polyolefin producers has accumulated significantly, leading to high de-stocking pressure. The market may trade based on the "rush to export" logic, and downstream demand may improve in the future. The seasonal decline in agricultural film production is observed, while the operating rates of other industries remain stable, mainly driven by rigid demand. With the significant drop in crude oil prices, the cost support for polyolefins is weak. The production profit of PDH-based PP is slightly in the red, and there are many PDH plants under maintenance. Future attention should be paid to the restart plans of PDH plants [2] - For trading strategies, a cautious and bearish stance is recommended for plastics on a single-side basis, and no cross-period strategy is proposed [3] Summary by Directory 1. Polyolefin Basis Structure - The closing price of the L main contract is 7,298 yuan/ton (-41), and the closing price of the PP main contract is 7,161 yuan/ton (-32). The spot price of LL in North China is 7,430 yuan/ton (+30), and in East China is 7,450 yuan/ton (+50). The spot price of PP in East China is 7,250 yuan/ton (+0). The basis of LL in North China is 132 yuan/ton (+71), in East China is 152 yuan/ton (+91), and the basis of PP in East China is 89 yuan/ton (+32) [1] 2. Production Profit and Operating Rate - The operating rate of PE is 79.5% (-4.5%), and the operating rate of PP is 76.6% (-3.2%). The oil-based production profit of PE is 515.8 yuan/ton (+141.7), the oil-based production profit of PP is 125.8 yuan/ton (+141.7), and the production profit of PDH-based PP is -273.7 yuan/ton (-7.1) [1] 3. Non-standard Price Spread of Polyolefins - Not provided in the given content 4. Import and Export Profits of Polyolefins - The import profit of LL is -81.8 yuan/ton (+13.3), the import profit of PP is -361.9 yuan/ton (-123.4), and the export profit of PP is 12.2 US dollars/ton (-6.1) [1] 5. Downstream Operating Rate and Downstream Profit of Polyolefins - The operating rate of the PE downstream agricultural film is 16.7% (-2.8%), the operating rate of the PE downstream packaging film is 48.7% (+1.1%), the operating rate of the PP downstream plastic weaving is 45.3% (+0.5%), and the operating rate of the PP downstream BOPP film is 59.9% (+2.3%) [1] 6. Polyolefin Inventory - The inventory of polyolefin producers has accumulated significantly, and the de-stocking pressure is high, but specific inventory data is not provided [2]