Investment Rating - The industry investment rating is "Positive" based on the performance of the refining sector and the overall market conditions [150]. Core Insights - The report highlights that low inventory levels of polyester filament support product prices and improve profitability [1]. - The Brent crude oil average price for the week ending November 7, 2025, was $64.23 per barrel, reflecting a decrease of 1.45% [2][3]. - Domestic and international refining project price differentials have shown positive trends, with domestic projects at 2327.79 CNY/ton (+0.78%) and international projects at 1361.85 CNY/ton (+4.33%) [2][3]. Summary by Sections Refining Sector - The report notes that international oil prices experienced fluctuations due to various geopolitical factors and economic data, with Brent and WTI prices at $63.63 and $59.75 per barrel, respectively [15]. - Domestic refined oil prices showed slight fluctuations, with diesel, gasoline, and aviation kerosene averaging 6682.71 CNY/ton, 7614.29 CNY/ton, and 5865.29 CNY/ton [15]. Chemical Sector - The chemical market is described as relatively weak, with no significant improvement in price differentials despite declining costs [2]. - Polypropylene prices and differentials have shown stability, with average prices for various types of polypropylene reported [56][71]. Polyester & Nylon Sector - The report indicates that polyester filament supply is supported by low inventory levels, leading to slight price increases [90]. - The average prices for polyester filament types are reported, with POY at 6507.14 CNY/ton, FDY at 6721.43 CNY/ton, and DTY at 7803.57 CNY/ton [108]. Market Performance of Major Refining Companies - The report tracks the stock performance of six major refining companies, with notable increases in stock prices for companies like Rongsheng Petrochemical (+5.99%) and Hengli Petrochemical (+8.02%) over the past week [137][140]. - The overall performance of the refining index has increased by 52.08% since September 4, 2017, outperforming the broader market indices [138].

Report Information - Report Title: Big Refining Weekly Report: PTA Industry Development Symposium Held, Pay Attention to the Advancement of Anti-Involution in the Chemical Industry [1] - Report Date: November 2, 2025 [1] - Analysts: Chen Shuxian, Zhou Shaowen [1] Industry Investment Rating - Not provided in the given content Core Viewpoints - The report provides a comprehensive analysis of the big refining industry, including the performance of key refining projects, the polyester, refining, and chemical sectors, and the market performance of related listed companies [2] Summary by Directory 1. Big Refining Weekly Data Briefing - **Price and Spread Data**: Domestic key big refining project spread is 2,450 yuan/ton, down 90 yuan/ton (down 4%) week-on-week; foreign key big refining project spread is 1,302 yuan/ton, up 79 yuan/ton (up 6%) week-on-week [2] - **Polyester Sector**: POY/FDY/DTY industry average prices are 6,429/6,679/7,779 yuan/ton, up 21/61/46 yuan/ton respectively; POY/FDY/DTY industry weekly average profits are -17/-116/17 yuan/ton, down 88/62/72 yuan/ton respectively; POY/FDY/DTY industry inventories are 8.5/18.3/24.5 days, down 3.3/3.6/5.0 days respectively; filament开工率 is 90.9%, down 0.1 pct; downstream loom开工率 is 69.0%, up 2.6 pct; weaving enterprise raw material inventory is 14.0 days, up 2.9 days; weaving enterprise finished product inventory is 23.0 days, down 1.1 days [2] - **Refining Sector**: Domestic refined oil: gasoline/diesel prices declined this week; US refined oil: US gasoline/diesel/aviation kerosene prices rose this week [2] - **Chemical Sector**: This week's PX average price is 820.7 US dollars/ton, up 26.3 US dollars/ton; the spread to crude oil is 344.9 US dollars/ton, up 8.2 US dollars/ton; PX开工率 is 87.1%, up 0.8 pct [2] - **Related Listed Companies**: Private big refining & polyester filament: Hengli Petrochemical, Rongsheng Petrochemical, Hengyi Petrochemical, Tongkun Co., Ltd., Xin凤鸣 [2] 2. Big Refining Weekly Report 2.1 Big Refining Index and Project Spread Trends - **Market Performance Comparison**: The report presents the price trends and spreads of domestic and foreign big refining projects, as well as the market performance of six private big refining companies compared to the Shanghai and Shenzhen 300 Index, the petroleum and petrochemical index, and the Brent crude oil price [13][15][17] 2.2 Polyester Sector - **Price and Profit Analysis**: The report analyzes the prices, spreads, and profits of various polyester products, including PX, PTA, MEG, POY, FDY, DTY, polyester staple fiber, and polyester bottle chips, as well as their relationships with raw material prices and inventories [23][24][35] - **开工率 and Inventory Analysis**: It also examines the开工率 and inventory levels of polyester products and their downstream industries, such as looms, and analyzes the seasonal distribution of polyester filament production and sales rates [30][42][56] 2.3 Refining Sector - **Domestic Refined Oil**: The report analyzes the prices and spreads of domestic gasoline, diesel, and aviation kerosene compared to crude oil prices [78][80][87] - **US Refined Oil**: It also examines the prices and spreads of US gasoline, diesel, and aviation kerosene compared to crude oil prices [92][94][101] - **European Refined Oil**: The report analyzes the prices and spreads of European gasoline, diesel, and aviation kerosene compared to crude oil prices [106][108][114] - **Singapore Refined Oil**: It also examines the prices and spreads of Singapore gasoline, diesel, and aviation kerosene compared to crude oil prices [118][120][126] 2.4 Chemical Sector - **Price and Spread Analysis**: The report analyzes the prices and spreads of various chemical products, including polyethylene, polypropylene, EVA, styrene, acrylonitrile, PC, MMA, etc., compared to crude oil prices [132][141]

Investment Rating - The industry investment rating is "Positive" as the industry index is expected to outperform the benchmark [150] Core Insights - The report highlights an improvement in demand for polyester filament yarn, leading to a continued reduction in inventory levels [2] - The Brent crude oil average price for the week ending October 31, 2025, was $65.18 per barrel, reflecting a week-on-week increase of 3.96% [2][3] - Domestic and international refining project price differentials were tracked, with domestic projects at 2337.32 CNY/ton, down 1.97%, and international projects at 1303.72 CNY/ton, up 6.53% [2][3] Refining Sector Summary - The market is questioning the effectiveness of sanctions against Russia, while OPEC+ is inclined to slightly increase production in December [2] - The EIA inventory data provided positive support, alleviating concerns over trade tensions [2] - As of October 31, 2025, the prices for Brent and WTI crude oil were $65.07 and $60.98 per barrel, respectively [2][14] Chemical Sector Summary - Chemical prices generally declined, with significant narrowing of price differentials [2] - Polyolefins showed stable price movements, while EVA continued to weaken with noticeable price drops [2] - Benzene prices faced downward pressure due to high invisible inventory levels, leading to slight price fluctuations [2] Polyester & Nylon Sector Summary - Demand for polyester filament yarn has rebounded, with inventory levels decreasing significantly [2] - The government has introduced policies to optimize the supply structure, improving medium to long-term supply-demand expectations [2] - The average prices for polyester filament yarn were reported as follows: POY at 6439.29 CNY/ton, FDY at 6675.00 CNY/ton, and DTY at 7725.00 CNY/ton [2][87] Major Refining Companies Performance - The stock price changes for six major refining companies as of October 31, 2025, were as follows: Rongsheng Petrochemical (+2.62%), Hengli Petrochemical (+6.40%), Dongfang Shenghong (-1.18%), Hengyi Petrochemical (-4.15%), Tongkun Co. (-0.49%), and Xin Fengming (+1.53%) [2][137]

1. Report Industry Investment Rating There is no information provided regarding the industry investment rating in the given content. 2. Core Viewpoints of the Report The report presents a comprehensive analysis of the large refining and chemical industry, covering key aspects such as project spreads, product prices, profit margins, inventory levels, and operating rates across different segments including polyester, refining, and chemicals. It also tracks the performance and financial forecasts of major private refining and chemical companies [2][8][9]. 3. Summary According to Relevant Catalogs 3.1. Big Refining Weekly Data Briefing - **Project Spreads**: Domestic key large refining projects had a weekly spread of 2,564 yuan/ton, a decrease of 24 yuan/ton (1% decrease) compared to the previous week. Foreign key large refining projects had a weekly spread of 1,212 yuan/ton, a decrease of 2 yuan/ton (0% decrease) [2]. - **Polyester Sector**: POY/FDY/DTY industry average prices were 6,407/6,618/7,732 yuan/ton respectively, with week - on - week decreases of 114/79/54 yuan/ton. Their weekly average profits were 72/ - 54/88 yuan/ton, down 54/30/14 yuan/ton week - on - week. Inventory levels were 11.8/21.9/29.5 days, down 5.0/4.2/2.0 days. The filament开工率 was 91.0%, a 0.0 percentage point decrease. Downstream, the loom operating rate was 66.5%, up 2.4 percentage points, and the raw material inventory of weaving enterprises was 11.1 days, up 0.9 days, while the finished product inventory was 24.0 days, down 1.7 days [2]. - **Refining Sector**: Domestic refined oil prices of gasoline, diesel, and aviation kerosene decreased this week. In the US, the price of aviation kerosene decreased [2]. - **Chemical Sector**: The average price of PX this week was 794.4 dollars/ton, an increase of 6.9 dollars/ton compared to the previous week, and the spread over crude oil was 336.7 dollars/ton, up 4.5 dollars/ton. The PX operating rate was 86.3%, a 1.0 percentage point decrease [2]. - **Related Listed Companies**: Private large refining and polyester filament companies include Hengli Petrochemical, Rongsheng Petrochemical, Hengyi Petrochemical, Tongkun Co., Ltd., and Xin凤鸣 [2]. 3.2. Big Refining Weekly Report 3.2.1. Big Refining Index and Project Spread Trends The report provides historical data and trends on the performance of the large refining index, including the comparison of the performance of the petrochemical index and six private large refining companies over different time periods (recent week, recent month, recent three months, recent year, and since the beginning of 2025). It also shows the trends of domestic and foreign large refining project spreads in relation to Brent oil prices [8]. 3.2.2. Polyester Sector - **Price and Profit Analysis**: Analyzes the prices, spreads, and profit margins of various polyester products such as PX, MEG, PTA, POY, FDY, DTY, polyester staple fiber, and polyester bottle chips. It also examines the relationships between these products and raw materials like crude oil and PTA [9]. - **Operating Rate and Inventory Analysis**: Tracks the operating rates of PX, PTA, MEG, and polyester filaments, as well as the inventory levels of PTA, polyester filaments, and polyester staple fiber. It also analyzes the operating rates and inventory levels of downstream weaving enterprises [9]. - **Sales and Production Ratio**: Analyzes the sales - to - production ratios of polyester filaments and polyester staple fiber in the Jiangsu and Zhejiang regions [47][69]. 3.2.3. Refining Sector - **Domestic Refined Oil**: Compares the prices and spreads of domestic gasoline, diesel, and aviation kerosene with crude oil prices in both yuan/ton and dollars/barrel units [82][84][92]. - **US Refined Oil**: Analyzes the prices and spreads of US gasoline, diesel, and aviation kerosene in relation to crude oil prices in both yuan/ton and dollars/barrel units [94][103]. - **European Refined Oil**: Examines the prices and spreads of European gasoline, diesel, and aviation kerosene in relation to crude oil prices in both yuan/ton and dollars/barrel units [108][115]. - **Singapore Refined Oil**: Analyzes the prices and spreads of Singapore gasoline, diesel, and aviation kerosene in relation to crude oil prices in both yuan/ton and dollars/barrel units [120][130]. 3.2.4. Chemical Sector Analyzes the prices and spreads of various chemical products such as polyethylene LLDPE, EVA foaming material, EVA photovoltaic material, homopolymer polypropylene, styrene, acrylonitrile, PC, MMA, etc., in relation to crude oil prices [136][146].

Investment Rating - The industry investment rating is "Positive" as indicated by the report's outlook on the refining sector [149]. Core Insights - The report highlights a rebound in oil prices, which has led to an increase in inventory replenishment among textile enterprises, resulting in a significant reduction in long filament inventory [1]. - Brent crude oil prices increased to $65.94 per barrel, up by $4.65 from the previous week, while WTI prices rose to $61.50 per barrel, an increase of $3.96 [1][13]. - The report notes that the domestic price difference for key refining projects is 2374.85 CNY/ton, a decrease of 30.36 CNY/ton (-1.26%) week-on-week, while the international price difference is 1213.16 CNY/ton, down by 2.88 CNY/ton (-0.24%) [2]. Refining Sector Summary - The report discusses the impact of geopolitical events on oil prices, including potential trade agreements between the US and China, and sanctions against Russia, which have contributed to a favorable environment for oil price recovery [1][13]. - The report indicates that the refining sector is experiencing a mixed performance, with some companies seeing stock price increases while others face declines [1][136]. Chemical Sector Summary - The chemical sector is facing weak overall demand, with oil price rebounds not translating into significant price support for chemical products [1]. - Specific products such as EVA and pure benzene have seen price declines due to weak downstream demand, leading to narrowed price differentials [1][51]. Polyester & Nylon Sector Summary - The report notes that polyester filament prices have slightly decreased, but the rebound in oil prices has stimulated replenishment sentiment among downstream textile enterprises, leading to a notable reduction in filament inventory [1][89]. - The average price for polyester filament is reported at 6439.29 CNY/ton for POY, with a slight decrease in profitability [1][112].

1. Report Industry Investment Rating No specific industry investment rating is provided in the given text. 2. Core Viewpoints The report presents a weekly overview of the large refining and chemical industry, including data on domestic and foreign refining projects, the polyester, refining, and chemical sectors, as well as performance data of related listed companies. It shows that costs have weak support and filament market prices are declining. [2] 3. Summary by Relevant Catalogs 3.1 Big Refining Weekly Data Briefing - **Price and Spread Data**: The spread of domestic key large refining projects this week was 2,636 yuan/ton, a week - on - week increase of 122 yuan/ton (5%); the spread of foreign key large refining projects was 1,219 yuan/ton, a week - on - week increase of 67 yuan/ton (6%). International crude oil prices fell, with Brent at 62.4 dollars/barrel, down 2.8 dollars/barrel (-4.3%) week - on - week, and WTI at 58.6 dollars/barrel, down 2.8 dollars/barrel (-4.5%) week - on - week. [2][8] - **Polyester Sector**: POY/FDY/DTY industry average prices were 6,521/6,696/7,786 yuan/ton respectively, down 121/100/89 yuan/ton week - on - week. Their weekly average profits were 126/-24/102 yuan/ton respectively, up 4/18/25 yuan/ton week - on - week. POY/FDY/DTY inventories were 16.8/26.1/31.5 days respectively, up 3.2/2.0/2.6 days week - on - week. The filament开工 rate was 91.1%, unchanged week - on - week. [2] - **Refining Sector**: Domestic and US gasoline, diesel, and aviation kerosene prices all decreased this week. [2] - **Chemical Sector**: The average PX price this week was 787.6 dollars/ton, down 16.0 dollars/ton week - on - week, and the spread to crude oil was 332.2 dollars/ton, up 4.3 dollars/ton week - on - week. The PX开工 rate was 87.5%, down 0.4 pct week - on - week. [2] - **Listed Companies**: Related listed companies include Hengli Petrochemical, Rongsheng Petrochemical, Hengyi Petrochemical, Tongkun Co., Ltd., and Xin凤鸣. [2] - **Stock Performance**: The petroleum and petrochemical index fell 2.6% in the past week. Among the six private refining companies, Tongkun Co., Ltd. had the largest decline of 12.4%, while Xin Fengming had a relatively large increase in the past three months and one year. [8] 3.2 Big Refining Weekly Report 3.2.1 Big Refining Index and Project Spread Trends - There are trend charts showing the changes in the Shanghai - Shenzhen 300, petroleum and petrochemical index, Brent crude oil price, and the average index of six large refining companies from 2020 - 2025. [13][15] - There are also trend charts of the market performance of six private large refining companies from 2020 - 2025. [16][17] - Trend charts of the spread of domestic and foreign large refining projects and Brent crude oil prices from 2020 - 2025 are presented. [19][22] 3.2.2 Polyester Sector - Multiple trend charts show the prices and spreads of crude oil, PX, PTA, MEG, and various polyester products from 2020 - 2025, as well as the relationship between their prices and spreads, single - ton net profits, inventories, and开工 rates. [24][25][26] - There are also charts showing the production and sales rates of polyester filaments and short - fibers in the Jiangsu and Zhejiang regions, as well as their annual distribution. [49][50][72] 3.2.3 Refining Sector - Trend charts of the prices and spreads of domestic, US, European, and Singapore gasoline, diesel, and aviation kerosene to crude oil from 2020 - 2025 are provided. [83][84][85] 3.2.4 Chemical Sector - Trend charts of the prices and spreads of various chemical products such as polyethylene, polypropylene, EVA, styrene, acrylonitrile, PC, and MMA to crude oil from 2020 - 2025 are presented. [136][137][147]

Investment Rating - The industry investment rating is "Positive" as indicated by the report's outlook on the refining sector [153]. Core Insights - The report highlights an increase in demand for winter thermal fabrics, leading to a slight improvement in long filament profitability [2]. - The Brent crude oil average price for the week ending October 17, 2025, was $62.37 per barrel, reflecting a decrease of 4.26% from the previous week [2]. - The domestic key refining project price difference was 2425.56 CNY/ton, with a week-on-week increase of 21.37 CNY/ton (+0.89%) [3]. - The report notes that the international oil price experienced fluctuations due to trade tensions and economic concerns, impacting the overall market sentiment [14]. Summary by Sections Refining Sector - The report discusses the impact of U.S.-China trade tensions on oil prices, with Brent and WTI prices at $61.29 and $57.54 per barrel respectively, showing declines of $1.44 and $1.36 from the previous week [14]. - Domestic refined oil prices have slightly decreased, but the price differentials have improved [14]. - The report tracks the stock performance of six major refining companies, with notable declines in stock prices for several companies over the past week [140]. Chemical Sector - The chemical products in the petrochemical downstream faced price declines due to weak cost support, with polyolefin prices showing slight fluctuations [2]. - EVA demand remains weak, leading to price adjustments and a slight narrowing of price differentials [2]. - The report indicates that pure benzene prices have slightly decreased, but price differentials have improved [2]. Polyester & Nylon Sector - The report notes a decrease in polyester chain product prices due to weak cost support, with PX, MEG, and PTA prices all declining [89]. - The demand for polyester long filaments has increased due to colder temperatures in northern regions, although prices have slightly decreased [110]. - Nylon fiber prices have also shown weakness, with average prices for POY, FDY, and DTY all declining [120].

Investment Rating - The industry investment rating is "Positive" based on the performance of the refining sector and the expected improvements in product margins [2][154]. Core Insights - The report highlights a significant drop in raw material prices, leading to a slight improvement in refining product margins. The domestic refining project price spread increased by 21.59 CNY/ton (+0.91%) to 2404.19 CNY/ton, while the international spread decreased by 6.62 CNY/ton (-0.57%) to 1151.33 CNY/ton [2][3]. - Brent crude oil averaged 65.15 USD/barrel, reflecting a decrease of 1.91% week-on-week. The report discusses the impact of geopolitical events and OPEC's production plans on oil prices, indicating fluctuations in response to market conditions [2][15]. Summary by Sections Refining Sector - The report notes that Iraq is set to resume oil exports from the Kurdistan region, while ongoing conflicts in Ukraine continue to affect energy infrastructure. International oil prices have shown volatility, with Brent and WTI prices at 62.73 USD/barrel and 58.90 USD/barrel, respectively, down by 1.80 USD and 1.98 USD from the previous week [2][15]. - Domestic refined oil prices have generally decreased, with diesel, gasoline, and aviation fuel averaging 6848.00 CNY/ton, 7932.29 CNY/ton, and 5947.21 CNY/ton, respectively [15]. Chemical Sector - The report indicates that the price decline of petrochemical products has not matched the cost reductions, leading to an expansion in price spreads. Polyethylene prices have shown slight fluctuations, while EVA prices have slightly decreased due to reduced downstream demand [2][53]. - The report also highlights that the price of pure benzene has decreased, with a stable price spread, while styrene prices have dropped, leading to a slight narrowing of the price spread [2][70]. Polyester & Nylon Sector - Polyester raw material prices have slightly decreased, with improvements in profit margins for filament products. The report notes that the market supply has slightly increased due to new installations and the resumption of previously halted operations [2][112]. - The average prices for polyester filament products are reported as POY at 6600.00 CNY/ton, FDY at 6750.00 CNY/ton, and DTY at 7800.00 CNY/ton, with varying profit margins across these products [2][134]. Market Performance of Major Refining Companies - The report tracks the stock performance of six major refining companies, with notable weekly increases for companies like Rongsheng Petrochemical (+4.97%) and Hengli Petrochemical (+2.86%). Over the past month, Rongsheng Petrochemical has also shown a positive trend with a 3.16% increase [2][141].

Investment Rating - The industry investment rating is "Positive" as the industry index is expected to outperform the benchmark [148]. Core Insights - The report highlights that domestic and international refining project price differentials have shown a decline, with domestic key refining project price differential at 2338.86 CNY/ton, down by 1.52% week-on-week, while the international price differential is at 1062.71 CNY/ton, down by 9.32% [2][3]. - Brent crude oil average price for the week ending September 26, 2025, was 68.03 USD/barrel, reflecting a slight increase of 0.71% [2][3]. - The report indicates that the refining sector is facing mixed signals, with international oil prices experiencing volatility due to geopolitical factors and economic data from the US raising concerns about demand [2][14]. - In the chemical sector, prices for petrochemical products have generally weakened, with price differentials narrowing across various products [2][46]. - The polyester and nylon sectors are experiencing price declines, with polyester filament factories slightly reducing production while facing weak demand [2][81][115]. Summary by Sections Refining Sector - The report notes fluctuations in oil prices, with Brent and WTI prices increasing by 3.45 and 3.04 USD/barrel respectively from the previous week [14]. - Domestic diesel and gasoline prices have slightly decreased, with average prices at 6905.29 CNY/ton and 7995.14 CNY/ton respectively [14]. Chemical Sector - Polyethylene prices have shown slight declines, with LDPE, LLDPE, and HDPE averaging 9685.71 CNY/ton, 7148.00 CNY/ton, and 8000.00 CNY/ton respectively [53][66]. - The report indicates that the MMA market is showing price stability due to limited supply pressure, with MMA averaging 10242.86 CNY/ton [66]. Polyester & Nylon Sector - PX prices have decreased, with the current average at 5757.10 CNY/ton, while PTA prices are also down to 4537.86 CNY/ton [81][96]. - The report highlights that the demand for polyester filament remains weak, with production adjustments being made in response to inventory levels [81][123]. Market Performance - The report tracks the stock performance of six major refining companies, noting significant weekly changes, with Rongsheng Petrochemical up by 4.55% and Dongfang Shenghong down by 3.32% [134][135]. - The overall performance of the refining index has increased by 44.48% since September 4, 2017, outperforming both the oil and petrochemical industry indices [137].

Investment Rating - The industry investment rating is "Positive" as the industry index is expected to outperform the benchmark [146] Core Viewpoints - The EVA supply remains tight, leading to continued price and margin increases [2] - Brent crude oil average price for the week ending September 19, 2025, was $67.55 per barrel, reflecting a week-on-week increase of 1.62% [2][3] - Domestic and international refined oil prices have seen slight increases, with domestic refined oil price margins narrowing and overseas margins widening [2] Summary by Sections Refining Sector - Domestic key refining project price margin was 2380.87 CNY/ton, a decrease of 15.72 CNY/ton (-0.66%) week-on-week, while the international margin was 1176.66 CNY/ton, down 16.22 CNY/ton (-1.36%) [2][3] - Brent and WTI crude oil prices on September 19, 2025, were $66.68 and $62.68 per barrel, respectively, showing slight declines from the previous week [16] - Domestic diesel, gasoline, and aviation kerosene average prices were 6936.14 CNY/ton, 8019.29 CNY/ton, and 5976.50 CNY/ton, respectively, with corresponding price margins against crude oil [16] Chemical Sector - EVA prices continued to rise, with an average price of 11842.86 CNY/ton, and the EVA-crude oil price margin increased to 8338.71 CNY/ton [56] - Polypropylene prices showed a downward trend due to weak demand, with average prices for various types of polypropylene reported [72] - MMA prices increased significantly due to supply-side factors and pre-holiday stocking demand, with an average price of 9882.14 CNY/ton [72] Polyester & Nylon Sector - PX prices showed a slight decline, with the current average price at 5926.85 CNY/ton, and the PX-crude oil price margin at 2423.52 CNY/ton [87] - PTA prices decreased, with the average price at 4592.86 CNY/ton and the industry average profit margin remaining negative [96] - The average price for polyester filament yarns decreased due to weak demand, with average prices reported for different types of yarns [104]