1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The polyester industry has certain demand resilience in 2025, but the growth height is limited. The downstream terminal demand is affected by the macro - situation, and the foreign demand faces challenges. The cost - side crude oil supply and demand tend to be in surplus, while PXN has strong support. PTA is in an expansion cycle with compressed industrial profits, and MEG has low - inventory and high - valuation characteristics, facing the pressure of inventory accumulation [1][5]. 3. Summary According to the Catalog 3.1 Market Review - **PX**: In the first half of 2025, the PX price fluctuated widely, and the absolute price mainly followed the trend of crude oil [8]. - **PTA**: In the first half of 2025, the PTA price also fluctuated widely following the crude oil [12]. - **MEG**: The MEG price was affected by crude oil, and its center of gravity moved downward [16]. 3.2 Polyester Demand - **Production and Demand Forecast**: It is estimated that the polyester production in 2025 will be about 78.28 million tons, with a demand growth rate of about 6%. The production in the first half of the year was about 39 million tons, a year - on - year increase of about 8%. The second - half demand will follow the seasonal pattern, but the overall height is limited due to the over - export in the first half [19]. - **New Capacity**: The planned new polyester capacity in 2025 is 6.3 million tons, with a capacity growth rate of about 8%. The new capacity in the first half of the year was 2.6 million tons, and 3.7 million tons are planned to be put into production in the second half. Bottle - chip production accounts for a large proportion, and the short - fiber production has little increase [22]. - **Inventory and Profit**: Except for bottle - chips, the inventory pressure of filament and short - fiber is not large. The polyester comprehensive profit in the first half of 2025 was low, with filament in a small - profit state, short - fiber's profit compressed in the off - season, and bottle - chips in a loss state. In the second half, the bottle - chip over - supply pattern will intensify, while the short - fiber profit may rise [25][28]. 3.3 Terminal Demand - In the first half of 2025, the domestic demand showed the characteristic of "peak season not prosperous". The downstream factories have low expectations and low enthusiasm for stockpiling. The domestic demand may be improved by policies, but the foreign orders may decrease in the second half [31][34]. 3.4 Cost Side - **Naphtha and Gasoline**: In the first half of 2025, the naphtha spread was at a high level, and it will remain strong in the second half. The gasoline cracking profit will maintain a neutral level, with obvious differentiation between peak and off - seasons [38]. - **PX Capacity and Supply**: Since 2024, PX has entered the end of the expansion cycle. In 2025, the new capacity is expected to be 3 million tons, with a capacity growth rate of about 5%. The new supply growth rate is only 1%, and the supply depends on the load of existing devices and imports. The PX valuation has strong support below, and the import volume is expected to increase in the second half [39][47][49]. - **PX Inventory**: In the first half of 2025, PX was in a state of destocking, with a destocking volume of about 900,000 tons. In the second half, there will be a certain supply - demand gap, and the destocking volume is expected to be 500,000 - 600,000 tons [52][53]. 3.5 PTA - **Capacity and Supply**: In 2025, the PTA capacity will continue to expand, with an expected new capacity of 8.7 million tons. The new supply pressure is large, with an average new production growth rate of 11%. The supply pressure will intensify after the commissioning of Honggang Petrochemical and Sanfangxiang in the middle of the year. The export volume has decreased, and the inventory accumulation pressure is large in the second half [56][59][69]. 3.6 MEG - **Capacity and Supply**: The MEG capacity growth rate has declined. In 2025, the planned new capacity is 1.6 million tons, and the new production growth rate is about 2.7%. The supply is expected to remain at a high level in the second half, and attention should be paid to the changes in existing devices [72][75]. - **Profit and Inventory**: The MEG profit in the second half of 2025 will face certain pressure. The import volume is expected to increase. The current inventory is at a low level, and it is expected to enter the inventory - accumulation stage in the third quarter [78][81][84]. 3.7 Trading Opportunities Outlook in the Middle of 2025 - **PX**: The PX price mainly follows the crude oil, with an absolute price range of 6,000 - 7,500 yuan/ton. Consider long - position opportunities at low levels, and 9 - 1 positive spreads or long - PXN at low levels [85]. - **PTA**: The PTA price follows the crude oil, with an absolute price range of 4,000 - 5,300 yuan/ton. The processing fee should be short - sold at high levels, and 9 - 1 positive spreads can be tried [86]. - **MEG**: The MEG price is expected to run weakly in the range of 3,800 - 4,600 yuan/ton. It is recommended to short - sell at high levels, and pay attention to the long - TA and short - EG positions [87].