1. Report Industry Investment Rating - The investment view is "oscillating", and it is expected to be mainly bearish as there is no obvious driving force [3]. 2. Core View of the Report - The report analyzes the polyester industry from multiple aspects including supply, demand, inventory, etc. It points out that due to factors such as the decline in crude oil prices, the return of domestic PTA device supply, and the seasonal weakening of aromatics, the PTA market shows a weak trend. Although the downstream load of polyester remains at a high level, there is still no obvious driving force in the market, and it is expected to be mainly bearish [3]. 3. Summary According to Relevant Catalogs 3.1 Main Views and Strategy Overview - **Supply**: Bearish. Crude oil prices are falling, domestic PTA device supply is gradually returning, PTA basis is weakening, and PX device operating rate is rising while the spread between PX and naphtha is shrinking [3]. - **Demand**: Bullish. The downstream load of polyester remains at about 91%, the inventory of polyester factories is optimistic, and the load of the weaving end has increased slightly [3]. - **Inventory**: Neutral. PTA port inventory has decreased by 40,000 tons [3]. - **Basis**: Bearish. PTA basis has weakened rapidly, profits have continued to shrink, and market liquidity is very loose [3]. - **Profit**: Bearish. The spread between PX and naphtha is $220, and PTA processing fees remain at around 150 yuan and have shrunk [3]. - **Valuation**: Neutral. PTA prices are at a neutral to low level, and aromatics supply has increased due to the return of reforming devices and the postponement of domestic PX mainstream device overhauls [3]. - **Macro Policy**: Neutral. The Fed cut interest rates by 25 basis points in September [3][8]. - **Investment View**: Oscillating. Expected to be mainly bearish with no obvious driving force [3]. - **Trading Strategy**: Unilateral: Wait and see. Risk focus: Geopolitical risks [3]. 3.2 Oil Product Fundamentals Overview - **Crude Oil**: Geopolitical crises still exist, and prices have dropped significantly. Trump called for further price cuts. Russian weekly crude oil exports decreased sharply in the week of September 14, but the four - week average export volume increased slightly. The Fed cut interest rates by 25 basis points on September 18 [5][8]. - **Gasoline**: The peak season for gasoline is ending, and the premium of high - octane components is weakening. Refinery operating rates have risen to 94.9%, gasoline production has decreased to 9.6 million barrels per day, and total gasoline inventory has increased by 1.5 million barrels compared to last week. The driving season will end at the end of September [23]. 3.3 Aromatics Fundamentals Overview - **Supply - Side Changes**: Overhauled devices are returning, and Yulong Petrochemical's supply has increased. Some refineries have device maintenance and new device production plans, which will affect the supply of pure benzene, toluene, and xylene [32][53]. - **Profit Situation**: Selective disproportionation profit has declined, and pure benzene prices are suppressing disproportionation profit. The spread between PX and naphtha has shrunk, and PX short - process profit is still supported [49][54]. - **Market Conditions**: The US - Asia MX spread has widened, but there is no news of exports from South Korea to the US. The spot PX price is gradually falling, and the spread between PX and naphtha has decreased [60]. 3.4 Polyester Fundamentals Overview - **Ethylene Glycol**: Supply is returning, and prices are weak. East China ethylene glycol port inventory is 465,000 tons and is expected to continue to decline. Overseas imports are expected to decrease, but domestic device production is pressuring prices [75][83]. - **Polyester**: It maintains a high load, but production is increasing while the downstream is entering the off - season. PTA basis has declined rapidly, and the market is under pressure [89][101].

投资咨询业务资格：证监许可【2012】31号 【聚酯周报】 原油弱势，芳烃季节性转弱 国贸期货 能源化工研究中心 2025-09-15 国贸期货研究院 能源化工研究中心：陈胜 从业资格证号：F3066728 投资咨询证号：Z0017251 本报告非期货交易咨询业务项下服务，其中的观点和信息仅供参考，不构成任何投资建议；期市有风险，投资需谨慎 01 PART ONE 主要观点及策略概述 聚酯：原油增产弱势，芳烃供给逐步回归 | 影响因素 | 驱动 | 主要逻辑 | | --- | --- | --- | | 供给 | 偏空 | 原油价格下跌，国内PTA装置供给端逐步回归，国内的惠州PTA供给增加，PTA基差走弱，PX与石脑油的价差收缩。 | | 需求 | 偏多 | 聚酯下游负荷维持91%左右的水平，聚酯工厂的库存表现乐观。聚酯主要负荷回升集中在瓶片品种，织造端的负荷小幅回升。 | | 库存 | 中性 | PTA的港口库存本周小幅去库1万吨，港口库存继续去库。 | | 基差 | 偏空 | PTA基差小幅走弱，PTA利润依然维持在低位，PTA市场的流动性非常宽松。 | | 利润 | 偏空 | PX与石脑油的价差到2 ...

Report Industry Investment Rating - The investment view is "oscillating", with no obvious driving force and expected to be mainly bearish [3] Core View of the Report - The supply of PTA is bearish as domestic production is at a historical high, and factors like benzene price weakness and profit margins limit PX production increase. The demand is also bearish as polyester downstream load is expected to decrease, and major polyester factories in short - fiber and bottle - chip segments plan to cut production in July. The PTA is in a stockpiling cycle, with port inventory increasing by 30,000 tons this week. The PTA basis has weakened rapidly, and its processing fee has shrunk. PTA price is at a neutral - low level, and the macro - policy has a neutral impact [3] Summary by Relevant Catalogs 1. Main Views and Strategy Overview - Supply: Domestic PTA production is at a historical high, port inventory is decreasing, and a large number of warehouse receipts are being cancelled. The spread between PX and naphtha has expanded to about $230 - 240, but benzene price weakness restricts PX production increase. The spread between PX and MX is about $90, which drives the recovery of PX load [3] - Demand: Polyester downstream load remains above 91% despite the expected reduction. Polyester factories' inventory is optimistic. Major production cuts are expected in short - fiber and bottle - chip segments in July, which will affect polyester load. As PTA price recovers, polyester's ability to absorb PTA price weakens, and weaving profit is compressed [3] - Inventory: PTA port inventory has accumulated, and it has entered a stockpiling cycle, with a 30,000 - ton increase in port inventory this week [3] - Basis: PTA basis has weakened rapidly. As PTA device increases with profit recovery and demand weakens, the market liquidity becomes looser [3] - Profit: The spread between PX and naphtha is $230, and the spread between PX and MX has shrunk. PTA processing fee remains at about 300 yuan and has contracted [3] - Valuation: PTA price is at a neutral - low level. As reforming devices gradually recover, aromatic supply increases, but gasoline profit is poor, and blending demand recovers [3] - Macro - policy: Trump plans to impose tariffs ranging from 60% - 70% and 10% - 20% on different countries starting August 1st [3][8] - Investment view: Oscillating, with no obvious driving force and expected to be mainly bearish [3] - Trading strategy: Unilateral: Wait and see [3] 2. Oil Product Fundamentals Overview - Policy: Trump plans to impose tariffs; the "Big and Beautiful Act" supports oil, gas, and coal production and restricts wind and solar energy; OPEC + is discussing an 81,100 - barrel - per - day production increase in August [8] - Gasoline: There are still concerns about the gasoline peak season. EIA data shows that the total inventory is 150,000 barrels, approaching 230 million barrels. Refinery operating rate has exceeded 94%, increasing gasoline production from 9 million barrels to 9.7 million barrels. North American refinery load is rising, and gasoline cracking profit shows a seasonal upward trend [23] 3. Aromatic Fundamentals Overview - MX: North American reforming device profit margin remains unchanged. The demand for MX in Asia is strong due to PX demand. Currently, tariffs hinder MX cross - regional arbitrage, but it is still marginally feasible. Asian spot MX supply is sufficient, and domestic mainstream reforming and aromatic extraction device productivity is decreasing [37][50][57] - PX: It is the core of polyester industry price fluctuations. After the listing of PX futures, its pricing is closely linked to futures [49][56] - PTA: Due to large domestic production capacity, the PTA processing interval has long been maintained below 500 yuan. With the launch of new devices and capacity, the option - based income - enhancement plan is more widely used [49][56] - Short - fiber and bottle - chip: They are in the capacity launch cycle. Overseas demand is an important variable, and the "Belt and Road" initiative provides new export opportunities [49][56] 4. Polyester Fundamentals Overview - Ethylene glycol: Coal - price decline expands coal - based ethylene glycol profit. There will be a large amount of ethylene glycol arriving at ports later. Polyester production and sales are weakening, and it is entering the maintenance cycle [81] - Gasoline: Gasoline profit is recovering, and the load of major refineries is increasing [82] - Polyester: Downstream demand is weakening, and bottle - chip and short - fiber are in the maintenance period. Raw material prices are rising, and terminal demand is weakening [90][97]