聚酯产业风险管理日报 ——化工稳增长通知出台，EG实质影响有限 2025/09/26 戴一帆（投资咨询证号：Z0015428） 周嘉伟（期货从业证号：F03133676） 投资咨询业务资格：证监许可【2011】1290号 聚酯价格区间预测 | | 价格区间预测（月度） | 当前波动率（20日滚动） | 当前波动率历史百分位（3年） | | --- | --- | --- | --- | | 乙二醇 | 4150-4450 | 9.75% | 3.2% | | PX | 6400-7100 | 12.56% | 27.4% | | PTA | 4400-5000 | 12.61% | 19.0% | | 瓶片 | 5600-6200 | 9.81% | 13.4% | source： 南华研究,同花顺 聚酯套保策略表 | 行为导向 | 情景分析 | 现货敞口 | 策略推荐 | 套保工具 | 买卖方向 | 套保比例（%） | 建议入场区间 | | --- | --- | --- | --- | --- | --- | --- | --- | | 库存管理 | 产成品库存偏高， 担心乙二醇价格下 | 多 | 为了防 ...

Report Overview - Report Title: Polyester Industry Risk Management Daily - Cost and Sentiment Double Blow, Prices Weakening - Date: September 19, 2025 - Analysts: Dai Yifan, Zhou Jiawei 1. Report Industry Investment Rating - No information provided 2. Report's Core View - The ethylene glycol market currently has limited supply - demand drivers and is expected to oscillate in the range of 4200 - 4400. Price breakthroughs depend on cost - side and macro - drivers. With short - term sentiment causing an over - decline, there is price support, and it is advisable to moderately sell out - of - the - money put options [3]. 3. Summary by Relevant Contents Polyester Price and Volatility - The monthly price ranges for different polyester products are: ethylene glycol 4150 - 4450, PX 6300 - 7000, PTA 4400 - 5000, and bottle chips 5500 - 6100. The 20 - day rolling current volatilities are 9.62% for ethylene glycol, 11.03% for PX, 10.04% for PTA, and 7.59% for bottle chips. Their 3 - year historical percentile of current volatility are 2.5%, 7.8%, 7.2%, and 0.8% respectively [2]. Polyester Hedging Strategies Inventory Management - For high finished - product inventory and concerns about ethylene glycol price drops, with a long spot exposure, it is recommended to short ethylene glycol futures (EG2601) with a 25% hedging ratio at an entry range of 4320 - 4420 to lock in profits and cover production costs. Also, buy put options (EG2601P4100) and sell call options (EG2601C4500) with a 50% hedging ratio at entry ranges of 20 - 30 and 50 - 80 respectively to prevent price drops and reduce capital costs [2]. Procurement Management - For low procurement inventory and purchasing based on orders, with a short spot exposure, it is recommended to buy ethylene glycol futures (EG2601) with a 50% hedging ratio at an entry range of 4180 - 4250 to lock in procurement costs. Sell put options (EG2601P4100) with a 75% hedging ratio at an entry range of 50 - 80 to collect premiums and lock in the purchase price of spot ethylene glycol [2]. Core Contradiction of Ethylene Glycol - Ethylene glycol has limited fundamental drivers recently. Under the expectation of continuous inventory accumulation after October, it has become a concentrated short - position target for funds. The inventory accumulation expectation in the fourth quarter is advanced and magnified due to new capacity, putting pressure on valuation. With much of the inventory - accumulation expectation already priced in, chasing short positions is not recommended before its realization. The supply side has no significant incremental capacity, lacking supply elasticity. Considering low inventory, low valuation, and inelastic supply, the short - term downward space is limited, while upward price movement is more elastic with unexpected drivers. It is expected to oscillate between 4200 - 4400, and price breakthroughs depend on cost and macro - drivers [3]. 利多解读 (Positive Factors) - The increase in thermal coal prices has compressed the profit of marginal coal - based production units to near the cost line [4]. 利空解读 (Negative Factors) - The 200,000 - ton ethylene glycol plant of Ningxia Kunpeng is planned to start trial production at the end of October, and its progress should be monitored. The new 800,000 - ton ethylene glycol capacity of Yulong is expected to be put into operation ahead of schedule at the end of September or early October, with an additional 50,000 - 60,000 tons of output in October [6]. Polyester Daily Data - The report provides price, price difference, processing fee, and sales rate data for various polyester - related products such as Brent crude oil, naphtha, PX, PTA, ethylene glycol, polyester filaments, and polyester chips on September 19, 2025, compared with previous days and weeks [8][9].

Report Summary 1. Report Industry Investment Rating No information provided. 2. Core Viewpoints - Ethylene glycol's recent fundamental drivers are limited. It was relatively resistant to price drops due to low inventory, but with the cooling of the chemical sector sentiment and lack of policy support, it has seen a compensatory decline. However, considering its low inventory, low valuation, and inelastic supply, it is expected to remain in an upward - biased trend. In the short - term, it oscillates in the 4350 - 4550 range, mainly following the cost side and commodity sentiment. It is recommended to buy on dips within the range. In the long - term, the performance of the downstream polyester peak season needs to be observed, and long positions can be combined with selling out - of - the - money near - month call options for covered operations [3]. 3. Summary by Relevant Catalogs 3.1 Polyester Price Range Forecast - Ethylene glycol price range (monthly) is 4300 - 4700, with a current 20 - day rolling volatility of 9.09% and a 3 - year historical percentile of 1.4%. - PX price range (monthly) is 6500 - 7400, with a current 20 - day rolling volatility of 11.78% and a 3 - year historical percentile of 17.7%. - PTA price range (monthly) is 4400 - 5300, with a current 20 - day rolling volatility of 9.30% and a 3 - year historical percentile of 4.6%. - Bottle chip price range (monthly) is 5800 - 6500, with a current 20 - day rolling volatility of 7.92% and a 3 - year historical percentile of 0.9% [2]. 3.2 Polyester Hedging Strategy **Inventory Management**: - For high finished - product inventory and concerns about ethylene glycol price drops, sell EG2601 futures with a 25% hedging ratio in the 4500 - 4600 range to lock in profits. - Buy EG2510P4400 put options and sell EG2510C4500 call options with a 50% hedging ratio in the 20 - 30 range to prevent large price drops and reduce capital costs [2]. **Procurement Management**: - For low procurement inventory and the need to lock in procurement costs, buy EG2601 futures with a 50% hedging ratio in the 4350 - 4400 range. - Sell EG2510P4350 put options with a 75% hedging ratio in the 18 - 30 range to collect premiums and lock in the purchase price if the price drops [2]. 3.3利多解读 - This week's planned arrivals are 11.01 tons, relatively low. Next Monday, port inventory is expected to decrease by about 1.5 tons, tightening spot liquidity. - Houthi attacks on Red Sea cruise ships led to an afternoon increase in oil prices, but the cost - side support was limited, and EG rebounded slightly before falling again [5]. 3.4利空解读 - Weaving terminal demand has shown a phased decline, with limited new orders. High temperatures in Jiangsu and Zhejiang have led to a slight decrease in loom operation rates. - Due to poor production efficiency and order intake, bottle chip factories have cancelled production increase plans, limiting polyester's production increase in September [6]. 3.5 Polyester Daily Data - Includes price data (such as Brent crude oil, PX, PTA, etc.), price differences (such as TA1 - 5 month spread, EG1 - 5 month spread), and processing fees (such as gasoline reforming spread, aromatics reforming spread) for different time points (2025 - 09 - 01, 2025 - 08 - 29, 2025 - 08 - 25) and their daily and weekly changes [8][9].

Group 1: Report Summary - The report is a daily risk management report on the polyester industry dated August 29, 2025 [1][3] - It focuses on ethylene glycol in the polyester industry, analyzing its supply - demand, market trends, and providing trading strategies [5] Group 2: Investment Rating - There is no report industry investment rating mentioned in the content Group 3: Core Viewpoint - Ethylene glycol has no obvious fundamental drivers currently. In the short - term, commodity sentiment is expected to face a correction during the policy vacuum period. However, due to low inventory, neutral valuation, and inelastic supply, it is expected to maintain an upward - biased trend, oscillating between 4350 - 4550. Trading strategy is to go long on dips within the range, and for the medium - to - long - term, observe the peak season performance of downstream polyester. Long positions can be combined with selling near - month out - of - the - money call options for covered call operations [5] Group 4: Polyester Price and Volatility - The monthly price range forecast for ethylene glycol is 4300 - 4700, with a current 20 - day rolling volatility of 9.09% and a 3 - year historical percentile of 1.4%; for PX it is 6500 - 7400, with a volatility of 11.78% and a percentile of 17.7%; for PTA it is 4400 - 5300, with a volatility of 9.30% and a percentile of 4.6%; for bottle chips it is 5800 - 6500, with a volatility of 7.92% and a percentile of 0.9% [4] Group 5: Polyester Hedging Strategy Inventory Management - When the finished - product inventory is high and worried about the decline of ethylene glycol price, sell 25% of EG2601 futures at 4550 - 4700 to lock in profits; buy EG2510P4400 put options and sell EG2510C4600 call options, with a total hedging ratio of 50%, to prevent price drops and reduce capital costs [4] Procurement Management - When the procurement inventory is low, buy 50% of EG2601 futures at 4350 - 4450 to lock in procurement costs; sell 75% of EG2510P4400 put options to collect premiums and lock in the purchase price if the price drops [4] Group 6: Market Drivers Bullish Factors - South Korea's finance minister announced that South Korean petrochemical companies will cut up to 3.7 million tons of naphtha cracking capacity annually, which may impact ethylene glycol raw material supply and ethylene production costs; planned port arrivals this week are 85,100 tons, and next Monday's port inventory is expected to decrease by about 30,000 tons, tightening spot liquidity; loom load has been slightly increasing, with some autumn and winter orders starting in September and foreign trade orders recovering, which is expected to boost the load of filaments and staple fibers [8] Bearish Factors - The total supply load has risen to 73.16% (+6.77%), with ethylene - based and coal - based production loads increasing. Next week, some plants plan to overhaul while others plan to restart and increase load, and the total load is expected to continue to rise [9] Group 7: Price and Related Data Table - The table shows price data of various polyester - related products such as Brent crude oil, PX, PTA, ethylene glycol, etc. on August 29, 2025, August 28, 2025, and August 22, 2025, including daily and weekly changes, as well as data on spreads, processing fees, and production and sales rates [12][13]

Report Summary 1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The fundamental supply - demand of ethylene glycol remains stable without obvious drivers, but it may rebound due to unexpected factors. Its price is expected to be strong in the short - term, with an easy - to - rise and hard - to - fall trend. The operation strategy is to buy on dips close to the cost end. In the medium - to - long - term, the prosperity of the downstream polyester peak season needs to be observed, and long positions can be hedged by selling near - month out - of - the - money call options [3]. 3. Summary According to Related Catalogs 3.1 Polyester Price Range Forecast | Product | Price Range (Monthly) | Current Volatility (20 - day Rolling) | Current Volatility Historical Percentile (3 years) | | ---- | ---- | ---- | ---- | | Ethylene Glycol | 4200 - 4700 | 9.09% | 1.4% | | PX | 6500 - 7400 | 11.78% | 17.7% | | PTA | 4400 - 5300 | 9.30% | 4.6% | | Bottle Chips | 5800 - 6500 | 7.92% | 0.9% | [2] 3.2 Polyester Hedging Strategy Table - **Inventory Management**: When the finished - product inventory is high and worried about the decline of ethylene glycol price, for long - position spot exposure, sell EG2601 futures with a 25% hedging ratio at 4500 - 4600, buy EG2510P4350 put options, and sell EG2510C4600 call options with a 50% hedging ratio at 30 - 50 to lock in profits and reduce costs [2]. - **Procurement Management**: When the regular procurement inventory is low and procurement is based on orders, for short - position spot exposure, buy EG2601 futures with a 50% hedging ratio at 4250 - 4350, and sell EG2510P4350 put options with a 75% hedging ratio at 30 - 50 to lock in procurement costs and reduce costs [2]. 3.3 Logic Analysis - Ethylene glycol is in a weak supply - demand balance with limited inventory accumulation, and the inventory accumulation expectation has been fully priced. Once there is an unexpected change in supply - demand, it may rebound rapidly [4]. - The coal - based profit of ethylene glycol is compressed by coal prices, and the downward space is limited under stable costs [4]. - The ethylene glycol plants are operating at full capacity, and additional supply is difficult to increase even if the valuation rebounds. Supply losses are difficult to replenish quickly in case of supply accidents [6]. 3.4利多解读 (Likely to be "Positive Factors Analysis" in English) - South Korea plans to cut up to 3.7 million tons of naphtha cracking capacity annually, which may impact the raw material supply and ethylene - based cost of ethylene glycol, pushing up its price [7]. - The planned arrival at the port this week is 965,000 tons, relatively low, and the port inventory is expected to decrease by about 30,000 tons next Monday, tightening spot liquidity [7]. - The load of looms and spinning mills has increased slightly. With the approaching of September, some autumn - winter orders at the terminal have started, which is expected to drive order release and increase the load of filament yarns [7]. - The price of thermal coal has strengthened slightly, further compressing coal - based profits and strengthening cost support [7]. 3.5利空解读 (Likely to be "Negative Factors Analysis" in English) - The total load of ethylene glycol has dropped to 66.39% (- 2.01%), with a decrease in oil - based production and an increase in coal - based production. Some production losses are expected due to short - term shutdowns and restarts of some plants [8]. 3.6 Price, Spread, and Processing Fee Data - The report provides price data of various products such as Brent crude oil, PX, PTA, and ethylene glycol on different dates, as well as their daily and weekly changes [9][10]. - It also includes spread data between different contracts and varieties, and processing fee data of different products, along with their daily and weekly changes [9][10]. - The sales - to - production ratios of polyester products such as polyester filament, polyester staple fiber, and polyester chips are also presented, along with their daily and weekly changes [10].

Report Summary 1. Industry Investment Rating No industry investment rating is provided in the report. 2. Core Viewpoint The supply - demand of ethylene glycol fundamentals is basically stable, lacking obvious drivers, and the overall price trend is mainly range - bound. Although there is a cumulative inventory trend, the inventory accumulation is limited, and the supply - demand is in a fragile balance. With low inventory, the upward elasticity is expected to be large. Also, the coal - to - ethylene glycol profit has been compressed by coal prices recently, and the downward space is expected to be limited under stable costs. It is recommended to buy ethylene glycol on dips, and the entry timing should focus on commodity sentiment [3]. 3. Other Key Points Polyester Price Range Forecast - The monthly price range forecast for ethylene glycol is 4200 - 4700, with a current 20 - day rolling volatility of 9.09% and a 3 - year historical percentile of 1.4% [2]. - For PX, it is 6500 - 7400, with a volatility of 11.78% and a historical percentile of 17.7% [2]. - For PTA, it is 4400 - 5300, with a volatility of 9.30% and a historical percentile of 4.6% [2]. - For bottle chips, it is 5800 - 6500, with a volatility of 7.92% and a historical percentile of 0.9% [2]. Polyester Hedging Strategies - **Inventory Management**: When the finished - product inventory is high and worried about the decline of ethylene glycol prices, for long - position inventory, it is recommended to short EG2509 futures with a 25% hedging ratio at an entry range of 4450 - 4550. Also, buy EG2509P4350 put options and sell EG2509C4500 call options with a 50% hedging ratio at an entry range of 10 - 15 to prevent price drops and reduce capital costs [2]. - **Procurement Management**: When the procurement inventory is low and hoping to purchase according to orders, for short - position inventory, it is recommended to buy EG2509 futures with a 50% hedging ratio at an entry range of 4300 - 4400. Sell EG2509P4350 put options with a 75% hedging ratio at an entry range of 10 - 30 to reduce procurement costs and lock in the purchase price if the price drops [2]. 利多解读 - On August 4, the Emergency Management Department released the new version of the "Coal Mine Safety Regulations", causing coal prices to rebound and costs to rise [4]. 利空解读 - There is a market rumor that large filament manufacturers' FDY is suffering heavy losses and there are plans to cut production, but the implementation needs further observation [7]. Price and Spread Data - On August 13, 2025, the price of Brent crude oil was 66.1 dollars/barrel, with no daily change and a weekly decrease of 0.8 dollars/barrel [8]. - The price of PX CFR China was 836 dollars/ton, with a daily increase of 2 dollars/ton and a weekly decrease of 8 dollars/ton [8]. - The price of PTA inner - market spot was 4692 yuan/ton, with a daily decrease of 13 yuan/ton and a weekly increase of 17 yuan/ton [8]. - The TA main - contract basis was - 11 yuan/ton, with a daily increase of 11 yuan/ton and a weekly increase of 14 yuan/ton [8]. Processing Fee and Profit Data - The Asian PXN was 266 dollars/ton, with a daily increase of 265.67 dollars/ton and a weekly increase of 3 dollars/ton [9]. - The POY profit was 73 yuan/ton, with a daily decrease of 73 yuan/ton and a weekly decrease of 106 yuan/ton [9]. - The polyester bottle - chip processing fee was 350 yuan/ton, with a daily decrease of 350 yuan/ton and a weekly decrease of 389 yuan/ton [9].

Report Summary 1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints - The supply - demand fundamentals of ethylene glycol (EG) are basically stable, lacking obvious drivers, and its price trend is mainly range - bound. Although there is a cumulative inventory trend, the inventory increase is limited, and the supply - demand is in a fragile balance. With low inventory, the upward elasticity is expected to be large. Also, the coal - based profit has been compressed recently, and the downward space is expected to be limited under stable costs. It is recommended to buy EG on dips, and the entry timing should focus on commodity sentiment [3]. 3. Summary by Related Content Polyester Price and Volatility - The monthly price range forecasts are: 4200 - 4700 for ethylene glycol, 6500 - 7400 for PX, 4400 - 5300 for PTA, and 5800 - 6500 for bottle chips. The current 20 - day rolling volatilities are 9.09% for ethylene glycol, 11.78% for PX, 9.30% for PTA, and 7.92% for bottle chips. The current volatility historical percentiles (3 - year) are 1.4% for ethylene glycol, 17.7% for PX, 4.6% for PTA, and 0.9% for bottle chips [2]. Polyester Hedging Strategies - **Inventory Management**: For enterprises with high finished - product inventory worried about EG price drops, they can short EG2509 futures (25% hedging ratio, entry range 4450 - 4550), buy EG2509P4350 put options, and sell EG2509C4500 call options (50% hedging ratio, entry range 10 - 15) [2]. - **Procurement Management**: For enterprises with low procurement inventory and aiming to purchase according to orders, they can buy EG2509 futures (50% hedging ratio, entry range 4300 - 4400), sell EG2509P4350 put options (75% hedging ratio, entry range 10 - 30) to lock in procurement costs [2]. Market Influencing Factors - **Likely Positive Factor**: On August 4, the Emergency Management Department released the new "Coal Mine Safety Regulations", leading to a rebound in coal prices and an increase in costs [4]. - **Possible Negative Factor**: There is a market rumor that large filament manufacturers' FDY is suffering heavy losses and may cut production, but the implementation needs further observation [7]. Price and Spread Data on August 11, 2025 - **Price Changes**: Compared with August 8 and August 4, prices of various polyester - related products such as Brent crude oil, PX, PTA, EG, etc. have different degrees of changes. For example, Brent crude oil dropped by 0.3 dollars/barrel compared with August 8 and 2.4 dollars/barrel compared with August 4 [8]. - **Spread Changes**: Spreads such as TA1 - 5, EG1 - 5, etc. also changed. For example, TA1 - 5 month - spread increased by 2 yuan/ton compared with August 8 and decreased by 6 yuan/ton compared with August 4 [8]. Production and Sales Rates and Processing Fees - **Production and Sales Rates**: The production and sales rates of polyester products such as polyester filament, polyester staple fiber, and polyester chips have different degrees of changes. For example, the polyester filament production and sales rate increased by 24.8% compared with August 8 [9]. - **Processing Fees**: Processing fees of products such as gasoline reforming, aromatics reforming, etc. also changed. For example, the gasoline reforming spread increased by 3 dollars/ton compared with August 8 [9].

Report Industry Investment Rating - Not provided in the content Core Viewpoints - The "anti-involution" logic has temporarily ended, and price trends have returned to fundamentals, with the previous premium being rapidly squeezed out. For ethylene glycol, the inventory accumulation in Q3 is small, the supply-demand contradiction is not significant, the downward space is limited under low inventory, and the inventory accumulation expectation is postponed. After the correction, the valuation is relatively neutral, and it is expected to fluctuate within a range following market sentiment [3] - The new version of the "Coal Mine Safety Regulations" was released, leading to a rebound in coal prices and an increase in costs [3] Summary by Relevant Catalogs Polyester Price Forecast - The monthly price forecast for ethylene glycol is 4200 - 4700 yuan, with a current 20 - day rolling volatility of 9.09% and a historical percentile (3 - year) of 1.4%. For PX, it is 6500 - 7400 yuan, with a volatility of 11.78% and a historical percentile of 17.7%. For PTA, it is 4400 - 5300 yuan, with a volatility of 9.30% and a historical percentile of 4.6%. For bottle chips, it is 5800 - 6500 yuan, with a volatility of 7.92% and a historical percentile of 0.9% [2] Polyester Hedging Strategies Inventory Management - When the finished - product inventory is high and there are concerns about a decline in ethylene glycol prices, enterprises with long positions can short ethylene glycol futures (EG2509) with a 25% hedging ratio at an entry range of 4450 - 4550 yuan to lock in profits and cover production costs. They can also buy put options (EG2509P4350) to prevent large price drops and sell call options (EG2509C4500) to reduce capital costs, with a 50% hedging ratio at an entry range of 10 - 15 yuan [2] Procurement Management - When the procurement of regular inventory is low and enterprises want to purchase based on orders, those with short positions can buy ethylene glycol futures (EG2509) with a 50% hedging ratio at an entry range of 4280 - 4330 yuan to lock in procurement costs. They can also sell put options (EG2509P4350) with a 75% hedging ratio at an entry range of 20 - 30 yuan to collect premiums and lock in the purchase price if the price drops [2] Polyester Raw Material Production Facilities - Before May 30, 2005, there were various polyester raw material production facilities. For MEG, facilities in Shanghai Petrochemical, Maoming Petrochemical, Jilin Petrochemical, etc. had different production capacities, operating states, and production time. For PX, facilities in Yangzi Petrochemical, Tianjin Petrochemical, etc. were included. For PTA, facilities in Yizheng Chemical Fibre, Luoyang Petrochemical, etc. were listed [7] Polyester Daily Data Price and Spread - Many polyester - related products showed price and spread changes on August 6, 2025, compared with previous days. For example, Brent crude oil was at 67.7 dollars/barrel, with a daily change of 0.0 and a weekly change of - 4.8 dollars/barrel. TA01 contract was at 4754 yuan/ton, with a daily change of 32 yuan/ton and a weekly change of - 100 yuan/ton. TA1 - 5 month spread was - 38 yuan/ton, with a daily change of 4 yuan/ton and a weekly change of - 20 yuan/ton [8] Inventory and Processing Fees - On August 6, 2025, PTA warehouse receipts were 27131, with a daily change of 0 and a weekly change of - 2607. Many processing fees also changed. For example, the gasoline reforming spread was 37 dollars/ton, with a daily change of 0 and a weekly change of 5 dollars/ton. POY profit was 111 yuan/ton, with a daily change of - 45 yuan/ton and a weekly change of 110 yuan/ton [9]

Report Summary 1. Investment Rating The document does not provide an investment rating for the industry. 2. Core View Supported by the macro "anti-involution" theme, the ethylene glycol price is running strongly under supply-side disturbances. Although the demand shows no sign of improvement, the supply side has frequent accidents, leading to a stronger near-term pattern of ethylene glycol, delaying the inventory accumulation expectation again. With low inventory levels, the price remains prone to rise and difficult to fall. Before the macro narrative materializes, it is expected to remain strong in the short term [3]. 3. Content Summary by Section Polyester Price Range Forecast - **Price Range**: The monthly price ranges are 4000 - 4600 for ethylene glycol, 6400 - 7300 for PX, 4400 - 5300 for PTA, and 5700 - 6400 for bottle chips [2]. - **Volatility**: The current 20 - day rolling volatilities are 15.94% for ethylene glycol, 21.59% for PX, 19.17% for PTA, and 15.85% for bottle chips. Their historical percentiles (3 - year) are 27.7%, 67.9%, 48.2%, and 47.9% respectively [2]. Polyester Hedging Strategy - **Inventory Management**: When the finished - product inventory is high and worried about the decline of ethylene glycol price, the strategies include shorting ethylene glycol futures (EG2509) with a 25% hedging ratio at 4400 - 4500, buying put options (EG2509P4250) and selling call options (EG2509C4500) with a 50% hedging ratio at 10 - 15 and 35 - 60 respectively [2]. - **Procurement Management**: When the procurement inventory is low, to prevent the rise of ethylene glycol price, strategies are to buy ethylene glycol futures (EG2509) with a 50% hedging ratio at 4200 - 4250, sell put options (EG2509P4250) with a 75% hedging ratio at 25 - 50 [2]. Core Contradiction Macro "anti - involution" theme supports the strong operation of ethylene glycol price under supply - side disturbances. Demand is weak, but supply - side accidents make the near - term pattern stronger, delaying inventory accumulation and keeping the price easy to rise and hard to fall in the short term [3]. 利多解读 The document does not provide specific content for this part. 利空解读 Long - filament manufacturers are rumored to have a 10% production cut plan, which is expected to be partially implemented, affecting the total polyester load by 1 - 2% [5]. Supply - side News - Satellite Petrochemical's first line restart is postponed from mid - August, reducing the production forecast for August - September [7]. - Three ethylene glycol plants in Saudi Arabia with a total capacity of 1.7 million tons/year have restart problems due to infrastructure issues, and the restart time is undetermined. The import volume in August is expected to decrease [7]. Price and Spread Data - **Price Changes**: On July 18, 2025, compared with the previous day and week, prices of various products such as Brent crude oil, PX, PTA, and ethylene glycol showed different degrees of changes. For example, Brent crude oil was at $69.7/barrel, up $0.1 from the previous day and down $0.7 from the previous week [8]. - **Spread Changes**: Spreads such as TA1 - 5, TA5 - 9, and EG1 - 5 also had corresponding changes. For example, the PX1 - 5 month spread was 52 yuan/ton, up 14 yuan/ton from the previous day and 14 yuan/ton from the previous week [8]. Processing Fee and Sales Rate - **Processing Fees**: Processing fees of products like gasoline reforming, aromatics reforming, and bottle chips showed different degrees of change. For example, the bottle chip processing fee was 377 yuan/ton, down 9 yuan/ton from the previous day and 63 yuan/ton from the previous week [9]. - **Sales Rates**: Sales rates of polyester products such as polyester filament, polyester staple fiber, and polyester chips increased. For example, the polyester filament sales rate was 58.2%, up 20% from the previous day and 22.9% from the previous week [9].

Report Summary 1. Report Industry Investment Rating - Not provided in the content 2. Core View of the Report - The geopolitical impact of the current Israel - Iran conflict is gradually subsiding, and the price of ethylene glycol is now mainly driven by fundamentals. With weak demand, increasing supply and decreasing demand, the supply - demand balance of ethylene glycol turns weak. It maintains a tight balance in July and will enter a continuous inventory accumulation phase later. The upward drive from fundamentals is limited, relying more on supply - side accidents and cost disturbances driven by the macro - environment. The valuation is expected to be under pressure, and attention should be paid to the subsequent production reduction rhythm of the polyester sector [3]. 3. Summary by Relevant Catalogs Polyester Price Range Forecast - **Price Range and Volatility**: The monthly price range forecasts are 4000 - 4600 for ethylene glycol, 6400 - 7300 for PX, 4400 - 5300 for PTA, and 5700 - 6400 for bottle chips. The current 20 - day rolling volatilities are 17.22% for ethylene glycol, 24.12% for PX, 22.00% for PTA, and 17.82% for bottle chips. The current volatility historical percentiles (3 - year) are 36.2% for ethylene glycol, 76.9% for PX, 63.2% for PTA, and 56.0% for bottle chips [2]. - **Polyester Hedging Strategies**: - **Inventory Management**: For high finished - product inventory and concerns about ethylene glycol price drops, strategies include shorting ethylene glycol futures (EG2509) with a 25% hedging ratio at an entry range of 4400 - 4500, buying put options (EG2509P4200) and selling call options (EG2509C4500) [2]. - **Procurement Management**: For low procurement inventory and the need to lock in procurement costs, strategies include buying ethylene glycol futures (EG2509) with a 50% hedging ratio at an entry range of 4200 - 4250, and selling put options (EG2509P4200) with a 75% hedging ratio [2]. Core Contradiction - The geopolitical impact of the Israel - Iran conflict fades, and ethylene glycol price is driven by fundamentals. Demand is weak, supply increases while demand decreases, resulting in a weakening supply - demand balance. It is in a tight balance in July and will enter an inventory accumulation phase. The upward drive from fundamentals is limited, relying on supply - side accidents and cost disturbances [3]. 利多解读 (Positive Factors) - **Inventory**: The inventory at East China ports is 55.3 tons, a decrease of 2.7 tons from the previous period. With less arrivals this week, it is expected to decrease by 3 - 4 tons next week [4]. - **Supply**: Several ethylene glycol plants in Saudi Arabia with annual capacities of 45, 55, and 70 tons have reduced production or shut down, and the import volume in August is expected to shrink [4]. 利空解读 (Negative Factors) - Not provided in the content Polyester Daily Data - **Price and Spread**: The prices of various polyester products and their spreads (such as TA1 - 5, EG5 - 9) have different daily and weekly changes. For example, Brent crude oil is at 70.6 dollars/barrel, with a daily change of 0.3 and a weekly change of 1.1 [7]. - **Inventory**: PTA, MEG, and PX have different inventory levels and changes in the number of warehouse receipts [7]. - **Processing Margin**: The processing margins of different products (such as gasoline reforming spread, aromatics reforming spread) also show various daily and weekly changes [7][8]. - **Sales Rate**: The sales rates of polyester products (such as polyester filament, polyester staple fiber) have different degrees of change [8].