聚烯烃周报：基本面无亮点，成本端主导行情-20251025

1. Report Industry Investment Rating - Not provided in the document 2. Core Viewpoints of the Report - The market anticipates an escalation of the geopolitical conflict in Venezuela, causing crude oil prices to stop falling and rebound. Polyolefin registered warrants are at a historical high for the same period, suppressing the market, leading to a continuous reverse spread in polyolefin prices. During the seasonal peak season, downstream demand for polyolefins is weaker than in previous years. Against the backdrop of supply - side pressure and lackluster demand, polyolefins follow cost - side fluctuations [17][18]. - The predicted trading range for polyethylene (LL2601) this week is between 7200 - 7500, and for polypropylene (PP2601) is between 7000 - 7300. It is recommended to adopt a wait - and - see strategy [17]. 3. Summaries by Directory 3.1 Weekly Assessment and Strategy Recommendation - Market Information: There is an expectation of an escalation in the Venezuela geopolitical conflict, causing crude oil prices to rebound. In terms of valuation, the weekly increase in polyethylene is in the order of cost > futures > spot, while for polypropylene, it is futures > spot > cost. Last week, WTI crude oil rose by 0.39%, Brent crude oil by 1.10%, coal prices by 5.83%, methanol fell by - 2.58%, ethylene by - 3.26%, and propylene by - 3.30%, with propane remaining unchanged at 0.00%. Cost - side support still exists [15]. - Supply - side: PE capacity utilization is 80.98%, a - 1.91% week - on - week decrease but a 3.90% year - on - year increase and a - 4.39% decrease compared to the five - year average. PP capacity utilization is 75.30%, a - 2.55% week - on - week decrease, a - 0.66% year - on - year decrease, and an - 8.54% decrease compared to the five - year average. According to the production plan, polypropylene will face significant production pressure in the fourth quarter [15]. - Import and Export: In September, domestic PE imports were 1.0222 million tons, a 7.58% month - on - month increase but a - 10.04% year - on - year decrease. In August, PP imports were 177,400 tons, an 11.15% month - on - month increase and a - 6.18% year - on - year decrease. Import profits are decreasing, with a reduction in PE supplies from North America, easing import - side pressure. In September, PE exports were 99,200 tons, a - 14.48% month - on - month decrease but a 63.54% year - on - year increase. In August, PP exports were 208,200 tons, a - 16.82% month - on - month decrease but a 21.14% year - on - year increase. With the start of Christmas stockpiling, PP exports may remain at a high level year - on - year [16]. - Demand - side: The downstream operating rate of PE is 45.00%, a 0.18% week - on - week increase and a 0.11% year - on - year increase. The downstream operating rate of PP is 52.00%, a 0.29% week - on - week increase and a 0.37% year - on - year increase. During the seasonal peak season, downstream demand for polyolefins is weaker than in previous years [16]. - Inventory: PE production enterprise inventory is 514,600 tons, with a - 2.81% week - on - week reduction and a 2.02% increase compared to the same period last year; PE trader inventory is 50,000 tons, with a - 0.70% week - on - week reduction. PP production enterprise inventory is 638,500 tons, with a - 5.92% week - on - week reduction and a 12.69% increase compared to the same period last year; PP trader inventory is 220,000 tons, with a - 7.80% week - on - week reduction; PP port inventory is 66,800 tons, with a - 1.62% week - on - week reduction. Overall, PP inventory pressure is higher than that of PE [16]. 3.2 Spot and Futures Market - The report presents multiple charts related to the term structure, prices, basis, spreads, trading volume, open interest, and registered warrants of PE and PP, including the term structure of PE and PP, the prices of LLDPE and PP main contracts, the basis of LLDPE and PP main contracts, the 1 - 5 spreads of LLDPE and PP, the open interest of LLDPE and PP active contracts, and the registered warrants of LLDPE and PP contracts. It also mentions that South Korea's ethylene plant clearance policy may boost the long - term strengthening of the LL - PP spread [31][63]. 3.3 Cost - side - The report provides a series of charts showing the prices of various raw materials and related indicators, such as the prices of PE and PP in the spot and futures markets and their costs, WTI crude oil prices, thermal coal prices, naphtha prices, propane prices, gasoline crack spreads, P/N/C prices, LPG registered warrants, domestic LPG spot and futures prices and basis, Saudi CP prices, Far East FEI prices, domestic LPG supply - side composition, China's LPG production, China's crude oil processing volume, China's major refinery capacity utilization rate and gross profit, domestic LPG import dependence, China's LPG import source proportion, South China's LPG import profit, LPG arrival volume, China's LPG import volume, Panama Canal water level, Gatun Lake water level, LPG freight rates from the US and the Middle East to the Far East, LPG refinery and port storage ratios, China's LPG demand proportion, China's LPG chemical demand proportion, China's olefin LPG actual demand, MTBE and PDH production gross profit, capacity utilization rate and output, alkylation oil production gross profit, capacity utilization rate and output, US propane prices, production, inventory, exports, and product supply [73]. 3.4 Polyethylene Supply - side - Raw Material Composition: The raw materials for PE production are mainly oil - based (80.00%), followed by light hydrocarbon (12.00%), coal (5.00%), methanol (2.00%), and purchased ethylene (1.00%) [139]. - Capacity and Production: The report shows the annual changes in PE capacity, production, and capacity growth rate. In 2025, a total of 463 tons of polyethylene production capacity has been put into operation, with 40 tons yet to be put into operation [143][145]. - Capacity Utilization and Maintenance: The current PE capacity utilization rate is 80.98%, with a - 1.91% week - on - week decrease. The report also provides information on PE maintenance plans and the resulting production losses [15][147].