2025 年聚酯产业链市场回顾与 2026 年展望：聚酯产业链：潮分两岸阔，利启新程长

1. Report's Investment Rating for the Industry The provided content does not mention the investment rating for the polyester industry. 2. Core Views of the Report - In 2025, the polyester industry chain was affected by factors such as macro - sentiment fluctuations, tariff conflicts, cost oscillations, device changes, and weak demand, leading to intensified price fluctuations and a further downward shift in the price center, hitting a historical low since 2007 [2][21]. - In 2026, the cost is expected to maintain relatively weak wide - range fluctuations. The oversupply of crude oil will put further downward pressure on oil prices, with Brent crude oil mainly fluctuating in the range of $50 - 75 per barrel [3]. 3. Summary by Relevant Catalogs 3.1 2025 Polyester Industry Chain Market Review - The price of the polyester industry chain fluctuated significantly in 2025, showing different trends in each quarter due to various factors such as cost, tariffs, and device maintenance. For example, in the first quarter, it showed a trend of rising first and then falling; in the second quarter, it was affected by tariffs and device maintenance, showing a deep V - shaped trend [21][22][23]. 3.2 Crude Oil: Supply Surplus and Price Pressure - In 2025, crude oil prices continued to decline under the pressure of continuous production increase, but were also affected by US tariff policies and geopolitical conflicts, resulting in sharp price fluctuations. Brent crude oil fell below $59 per barrel, and WTI crude oil fell below $56 per barrel, both hitting new lows since February 2021 [29]. - In 2026, crude oil demand is expected to grow slowly, and supply growth will slow down, but there will still be an oversupply situation, and oil prices will continue to be under pressure. It is expected that Brent crude oil will mainly fluctuate in the range of $50 - 75 per barrel [34]. 3.3 PX: Capacity Increase and Supply - Demand Expected to Be Tight First and Then Loose - Market Review: In 2025, PX prices were affected by multiple factors and fluctuated widely, with the price center shifting downwards. In the first half of the year, prices declined, and in the second half, they showed a relatively strong performance, and the PX - Nap spread strengthened [45]. - Cost Analysis: The cost of PX is expected to be relatively weak. Naphtha supply and demand are expected to be relatively loose, and the cracking spread is expected to decline to the range of $50 - 100 per ton. The supply - demand of MX is also expected to be loose, and the PX - MX spread will remain at a relatively strong level above $80 per ton [58][66]. - Supply - Demand Situation: PX capacity expansion is coming to an end. In 2026, the supply - demand structure is expected to be tight first and then loose. The supply - demand will be relatively tight in the first half of the year, especially in the second quarter during the maintenance season, and the PX - Nap spread is expected to widen [79][114]. - Price Forecast and Operation Suggestions: PX prices are expected to be relatively strong, especially in the second quarter, but the absolute price will still be restricted by cost. The main price fluctuation range is 5400 - 7700 yuan per ton. It is recommended to buy on dips and seize short - selling opportunities. For arbitrage, it is recommended to go long on the basis, with a target of 300 - 600 yuan per ton, and go long on the PX05 - 09 spread, with a target of 100 - 200 yuan per ton [116]. 3.4 PTA: Stable Supply and Increasing Demand, Supply - Demand Structure to Improve - Market Review: In 2025, PTA prices fluctuated widely, with the price center shifting downwards. The market was affected by factors such as trade conflicts, cost fluctuations, and anti - involution [127]. - Supply - Demand Analysis: In 2026, there is no new PTA capacity plan, but downstream polyester capacity will continue to expand, which will improve the PTA supply - demand structure. The processing fee is expected to rise to the range of 300 - 500 yuan per ton, and the operating rate is expected to increase to the range of 80% - 90% [137][144]. - Price Forecast and Operation Suggestions: PTA prices will still follow cost fluctuations. The main price fluctuation range is 3800 - 5600 yuan per ton. It is recommended to buy high and sell low according to cost trends and seasonal laws. For arbitrage, it is recommended to go long on the basis and seize opportunities to go long on the PTA05 - 09 spread [186]. 3.5 Ethylene Glycol: Capacity Continues to Increase, Price Still Under Pressure - Market Review: In 2025, ethylene glycol prices continued to decline, hitting a new low in nearly five years. In the first half of the year, it showed a good supply - demand structure, but in the second half, the price was under pressure due to factors such as increased supply and weak cost [195]. - Supply - Demand Situation: In 2026, ethylene glycol supply and demand will both increase, but the supply will be relatively loose. The price is expected to fluctuate in the range of 3000 - 4500 yuan per ton. It is recommended to short on rallies and seize short - term long - buying opportunities [256]. - Arbitrage Suggestions: It is recommended to short the basis on rallies and seize opportunities to go long on the ethylene glycol 05 - 09 spread [248]. 3.6 Polyester Staple Fiber: Capacity Expansion, Supply - Demand Weakening - Market Review: In 2025, polyester staple fiber prices were affected by factors such as weak terminal demand and cost decline, with the absolute price declining, but the processing fee remained stable around the break - even point [266]. - Supply - Demand Analysis: In 2026, the supply and demand of polyester staple fiber will both increase, but the supply increase will be greater than the demand increase, which will put pressure on the processing fee. The main price fluctuation range is expected to be 5800 - 6800 yuan per ton [331]. - Operation and Arbitrage Suggestions: It is recommended to mainly short according to the cost, and try to go long from August to September according to the seasonal law. For arbitrage, pay attention to fundamental changes and seize opportunities to go long on the basis and the PF05 - 09 spread [331]. 3.7 Polyester Bottle Chips: Continued Capacity Expansion, Profit Still Under Pressure - Market Review: In 2025, polyester bottle chip prices were affected by factors such as capacity expansion and cost fluctuations, with the price center shifting downwards, and the processing fee was at a low level [338]. - Supply - Demand Situation: In 2026, the supply of polyester bottle chips is expected to increase, and the demand will increase steadily. The supply - demand will maintain a dynamic wide - balance, which will still strongly suppress the processing fee. The price is expected to be strong first and then weak, with the main fluctuation range of 5200 - 6400 yuan per ton [382]. - Operation and Arbitrage Suggestions: It is recommended to short on rallies and seize short - term long - buying opportunities according to seasonal laws, cost trends, and device maintenance dynamics. For arbitrage, it is recommended to short the basis on rallies and pay attention to opportunities to short the PR03/05 spread [382]. 3.8 Polyester Industry Chain - Related Stocks As of December 12, different stocks in the polyester industry chain showed different trends. For example, the stock price of PetroChina increased by 8.67%, while the stock price of Sinopec decreased by 11.89% [383].