产能投放压力仍大，需求弱势

1. Report Industry Investment Rating - Not provided in the given content 2. Core Viewpoints of the Report - In the third quarter, PP and PE still face significant capacity expansion pressure, which eases in the fourth quarter. The expected standard - grade PE production in the second half of the year is only 500,000 tons, with reduced pressure compared to the first half. However, supply is not tightening as there was high - level maintenance in the first half, and there is an expectation of increased production from existing facilities in the second half. Terminal demand is weak year - on - year, and there are no strong factors to reverse this trend, so there is a lack of upward momentum. The strategy is mainly to sell short on rallies [3]. - In the short and medium term, a bearish view is taken on the single - side trading. For arbitrage and options, a wait - and - see approach is recommended [4]. 3. Summary by Directory 3.1 Comprehensive Analysis and Trading Strategy - Comprehensive Analysis: Third - quarter PP and PE capacity expansion pressure is large, easing in the fourth quarter. PE standard - grade production pressure in the second half is reduced, but supply may increase due to expected higher operation rates of existing facilities. Terminal demand is weak, lacking upward drivers [3]. - Strategy: Adopt a bearish stance on single - side trading in the short and medium term; temporarily hold off on arbitrage and options trading [4]. 3.2 Core Logic Analysis - Capacity Expansion: For PE, the expected new capacity for the 2509 contract is 2.05 million tons, and 800,000 tons for the 2601 contract. For PP, the 2505 contract has an expected new capacity of 2.11 million tons, 2.2 million tons for the 2509 contract, and 950,000 tons for the 2601 contract. The total new PE capacity in 2025 is expected to be 5.43 million tons, and 5.26 million tons for PP [12][13][14]. - Demand: PE and PP demand is weak year - on - year. For PE, the current mainstream downstream industry operating rates range from 20% - 51%. For PP, the plastic - weaving industry is in the off - season with reduced new orders, and the BOPP film industry has a shorter order cycle [22]. 3.3 PE Weekly Data Tracking - Inventory: This week, PE inventory increased by 8,000 tons to 1.02 million tons. Two - oil inventory remained unchanged, while coal - chemical, trader, and port inventories increased by 2,000 tons, 5,000 tons, and 1,000 tons respectively [11]. - Production and Operation: The current PE operating rate is 76.88%, up 4.43 percentage points from the previous period. The annual production capacity affected by maintenance is 6.97 million tons, and the maintenance loss this week is 108,500 tons, a decrease of 16,300 tons from the previous period [65]. - Price and Spread: The report provides detailed price data for PE raw materials, products, and various spreads, including changes in oil - based PE profit, CTO profit, and import profit [24]. - Import and Export: This week, the PE import market showed "reduced volume and stable prices." Supply was tightened due to some Middle - East plant failures, and the Chinese market price being low globally reduced foreign suppliers' willingness to quote. Import arrivals may continue to decline from July to August [81]. - Demand: PE downstream industry operating rates vary. Agricultural film operating rate increased by 3 percentage points to 20%, while pipe operating rate decreased by 2 percentage points to 32% [22]. 3.4 PP Weekly Data Tracking - Inventory: This week, PP inventory decreased by 2,000 tons to 514,000 tons. Two - oil inventory increased by 5,000 tons, while coal - chemical, trader, and port inventories decreased by 3,000 tons, 2,000 tons, and 1,000 tons respectively [11]. - Production and Operation: The current PP operating rate is 77.41%, down 1.85 percentage points from the previous week but up 3.51 percentage points from the same period last year. The operating rates of oil - based, coal - based, and PDH - based PP are 73.26%, 92.36%, and 76.18% respectively [133]. - Price and Spread: The report presents comprehensive PP price data, including raw material prices, product prices, and various spreads such as non - standard spreads and basis spreads [100]. - Import and Export: PP import offers are scarce, with few transactions due to the large gap between offers and buyers' expectations. PP export arbitrage opportunities are limited, mainly due to weak overseas markets and new domestic capacity leading to a supply - abundant situation [145][147]. - Demand: PP downstream industries, such as plastic - weaving, are in the off - season with reduced new orders. The BOPP film industry has a shorter order cycle, and some small and medium - sized injection - molding enterprises are operating at low rates [22].