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]

Core Viewpoint - The report highlights the fluctuations in oil prices and refining margins, indicating a mixed outlook for the refining and chemical sectors due to various geopolitical and market factors [1][2]. Refining Sector - As of the week ending September 12, 2025, the domestic refining margin for key projects was 2407.08 CNY/ton, an increase of 45.76 CNY/ton (+1.94%) from the previous week, while the international refining margin was 1198.96 CNY/ton, up by 65.38 CNY/ton (+5.77%) [2]. - The Brent crude oil average price for the week was 66.47 USD/barrel, reflecting a decrease of 1.77% [2]. - OPEC+ has slowed its production increase, with several countries implementing compensatory production cuts, which, along with potential U.S. sanctions on Russia and ongoing geopolitical tensions, have supported a slight upward trend in international oil prices [2]. Chemical Sector - The petrochemical sector showed mixed price trends, with some olefin products experiencing strong demand and price increases, while polyethylene prices remained stable with slight declines [3]. - EVA prices continued to rise due to strong photovoltaic demand, while pure benzene prices saw a minor decrease [3]. - The polyester industry faced downward pressure on prices due to increased supply from a PX facility restart, with overall orders remaining low [3]. Stock Performance of Refining Companies - As of September 12, 2025, stock performance for six major private refining companies showed varied results, with New Fengming leading with a 7.09% increase over the week and 27.04% over the month [4]. - Other companies like Hengli Petrochemical and Dongfang Shenghong also showed positive monthly performance, indicating a generally favorable market sentiment despite some weekly declines [4].

1. Report Industry Investment Rating No industry investment rating information is provided in the report. 2. Core Viewpoints The report presents a weekly analysis of the large refining and chemical industry, highlighting that the cost - end support is weak, and filament prices are under pressure. It provides detailed data on various segments such as refining, polyester, and chemicals, as well as the performance of related listed companies [1][3]. 3. Summary According to Relevant Catalogs 3.1 Big Refining Weekly Data Briefing - **6 Major Private Refining Companies' Performance** - **Stock Price Changes**: As of September 12, 2025, the stock prices of private refining companies showed different trends. For example, New Fengming had a weekly increase of 7.1%, while Hengli Petrochemical had a weekly decrease of 1.4% [9]. - **Earnings Forecast**: The report provides the net profit forecasts of these companies from 2024 to 2027. For instance, the expected net profit of Rongsheng Petrochemical in 2025 is 2.616 billion yuan [9]. - **Oil Prices and Refining Spreads** - **International Crude Oil**: The average price of Brent crude oil this week was 66.5 dollars/barrel, a decrease of 1.2 dollars/barrel (-1.8%) compared to last week, and a year - on - year decrease of 6.6%. The average price of WTI crude oil was 62.6 dollars/barrel, a decrease of 1.5 dollars/barrel (-2.4%) compared to last week, and a year - on - year decrease of 7.9% [9]. - **Refining Spreads**: The spread of domestic key large refining projects this week was 2,579.4 yuan/ton, a week - on - week increase of 96.5 yuan/ton (+3.9%); the spread of foreign key large refining projects was 1,197.0 yuan/ton, a week - on - week increase of 62.6 yuan/ton (+5.5%) [9]. - **Polyester Sector** - **Product Prices and Profits**: The average prices of POY, FDY, and DTY this week were 6,789.3 yuan/ton, 7,078.6 yuan/ton, and 8,021.4 yuan/ton respectively, with week - on - week decreases of 82.1 yuan/ton, 67.9 yuan/ton, and 28.6 yuan/ton. The weekly average profits of POY, FDY, and DTY were 107.8 yuan/ton, 34.3 yuan/ton, and 62.8 yuan/ton respectively, with week - on - week changes of - 4.5 yuan/ton, +5.0 yuan/ton, and +31.0 yuan/ton [10]. - **Inventory and Operating Rates**: The inventories of POY, FDY, and DTY were 19.3 days, 27.6 days, and 31.1 days respectively, with week - on - week increases of 1.9 days, 1.2 days, and 1.4 days. The operating rate of filament was 91.3%, a week - on - week decrease of 0.2 pct [10]. - **Refining Sector** - **Domestic Refined Oil**: This week, the prices of domestic gasoline and diesel decreased [3]. - **US Refined Oil**: This week, the prices of US gasoline, diesel, and jet fuel decreased [3]. - **Chemical Sector** - **PX**: The average price of PX this week was 835.6 dollars/ton, a week - on - week decrease of 7.0 dollars/ton. The spread between PX and crude oil was 350.3 dollars/ton, a week - on - week increase of 1.7 dollars/ton. The operating rate of PX was 85.9%, a week - on - week increase of 1.2 pct [3]. 3.2 Big Refining Weekly Report - **Big Refining Index and Project Spread Trends** - **Market Performance of Six Private Big Refining Companies**: The report presents the market performance trends of six private big refining companies from 2020 to 2025, including Hengli Petrochemical, Rongsheng Petrochemical, etc. [16][17] - **Refining Spreads and Oil Prices**: It shows the historical trends of domestic and foreign big refining project spreads and Brent oil prices from 2020 to 2025 [20][22] - **Polyester Sector** - **Raw Material and Product Prices**: It presents the price trends of crude oil, PX, PTA, MEG, etc., as well as the price and profit trends of various polyester products such as POY, FDY, DTY, polyester staple fiber, and polyester bottle chips from 2020 to 2025 [24][26][38] - **Operating Rates and Inventories**: It shows the operating rate trends of PX, PTA, MEG, filament, and polyester staple fiber from 2020 to 2025, as well as the inventory trends of PTA, filament, and polyester staple fiber [33][56][76] - **Sales and Production Rates**: It presents the sales and production rate trends of filament and polyester staple fiber in the Jiangsu - Zhejiang region from 2020 to 2025 [49][72] - **Refining Sector** - **Domestic Refined Oil**: It shows the price trends of domestic gasoline, diesel, and jet fuel and their spreads with crude oil from 2020 to 2025 [85][94] - **US Refined Oil**: It shows the price trends of US gasoline, diesel, and jet fuel and their spreads with crude oil from 2020 to 2025 [99][107] - **European Refined Oil**: It shows the price trends of European gasoline, diesel, and jet fuel and their spreads with crude oil from 2020 to 2025 [112][121] - **Singapore Refined Oil**: It shows the price trends of Singapore gasoline, diesel, and jet fuel and their spreads with crude oil from 2020 to 2025 [126][134] - **Chemical Sector** - **Chemical Product Prices**: It shows the price trends of various chemical products such as polyethylene LLDPE, homopolymerized polypropylene, EVA, styrene, acrylonitrile, PC, MMA, etc., and their spreads with crude oil from 2020 to 2025 [140][148]

Investment Rating - The industry investment rating is "Positive" as the industry index is expected to outperform the benchmark [129]. Core Insights - The report highlights strong demand in the photovoltaic sector, leading to a continuous increase in EVA prices and price spreads [2]. - Domestic and international refining project price spreads have shown significant changes, with domestic spreads at 2407.08 CNY/ton (+1.94%) and international spreads at 1198.96 CNY/ton (+5.77%) as of September 12, 2025 [2][3]. - Brent crude oil prices have experienced fluctuations, with a weekly average of 66.47 USD/barrel, reflecting a decrease of 1.77% [2][3]. Refining Sector Summary - OPEC+ has slowed its production increase, and several countries are implementing compensatory production cuts, contributing to a rise in international oil prices [2]. - As of September 12, 2025, Brent and WTI crude oil prices were 66.99 USD/barrel and 62.69 USD/barrel, respectively, marking increases of 1.49 USD and 0.82 USD from the previous week [2][14]. - Domestic refined oil prices have shown slight increases, with price spreads in Southeast Asia rising slightly while Europe and the US saw declines [2]. Chemical Sector Summary - The chemical products sector has shown mixed price trends, with some olefin products experiencing strong demand and price spreads widening [2]. - EVA prices have continued to rise due to strong photovoltaic demand, with an average price of 11592.86 CNY/ton and a price spread of 8146.18 CNY/ton [45]. - Polypropylene prices have weakened due to slow demand, with average prices for various types of polypropylene showing declines [56]. Polyester & Nylon Sector Summary - The polyester industry is facing downward pressure on prices, with PX prices at 5931.36 CNY/ton, reflecting a decrease of 51.52 CNY/ton [69]. - The demand for polyester filament remains weak, with average prices for POY, FDY, and DTY showing slight declines [89]. - Nylon fiber prices have remained stable, with slight improvements in price spreads [99]. Performance of Major Refining Companies - As of September 12, 2025, the stock price changes for six major refining companies were as follows: Rongsheng Petrochemical (0.00%), Hengli Petrochemical (-1.40%), Dongfang Shenghong (+3.93%), Hengyi Petrochemical (+4.40%), Tongkun Co. (0.00%), and Xin Fengming (+7.09%) [116]. - Over the past month, stock price changes were: Rongsheng Petrochemical (+4.45%), Hengli Petrochemical (+11.07%), Dongfang Shenghong (+12.56%), Hengyi Petrochemical (+10.67%), Tongkun Co. (+18.90%), and Xin Fengming (+27.04%) [116].

Investment Rating - The industry investment rating is "Neutral" based on the performance of the industry index relative to the benchmark [136]. Core Insights - The report highlights that the "Golden September" season is approaching, leading to improved orders in the downstream long filament sector [1]. - The Brent crude oil average price for the week ending September 5, 2025, was $67.67 per barrel, reflecting a decrease of 0.99% [2]. - Domestic and foreign refining project price differentials were tracked, with domestic projects at 2361.03 CNY/ton (-1.28%) and foreign projects at 1133.43 CNY/ton (+4.45%) [2]. Summary by Sections Refining Sector - Geopolitical risks have increased due to attacks on oil tankers, while U.S. oil demand has decreased, leading to concerns about supply exceeding demand [1]. - Brent and WTI crude oil prices were reported at $65.5 and $61.9 per barrel, respectively, showing declines from the previous week [14]. - The domestic and international product price differentials have widened, with domestic diesel and gasoline prices slightly down [14]. Chemical Sector - The report indicates a mixed trend in refining product price differentials, with olefins showing slight improvement while aromatics have narrowed [1]. - Polyethylene prices fluctuated, while polypropylene prices remained stable with a slight widening of price differentials [53]. - EVA prices increased due to strong demand from the photovoltaic sector, with significant widening of price differentials [53]. Polyester Sector - The cost structure for the polyester industry has shifted downwards, but demand for long filaments has improved as the peak season approaches [1]. - The average price for polyester long filaments has increased, leading to improved profitability [104]. - The report notes a decrease in supply for long filaments, with domestic and foreign orders showing slight increases [104]. Major Refining Companies - The stock performance of six major refining companies was tracked, with notable changes in their stock prices over the past week and month [124]. - The report indicates that the refining index has increased by 41.24% since September 4, 2017, outperforming the broader market indices [125].

Investment Rating - The industry investment rating is "Positive" as the industry index is expected to outperform the benchmark [144]. Core Insights - The report highlights that the demand for long filaments is improving as the "golden September" season approaches, indicating a potential uptick in downstream demand [2]. - The Brent crude oil price averaged $68.34 per barrel as of August 29, 2025, reflecting a week-on-week increase of 2.26% [2][3]. - Domestic and international refining project price differentials are being tracked, with domestic price differentials at 2408.08 CNY/ton, down 0.51% week-on-week, while international differentials are at 1080.85 CNY/ton, down 0.47% [2][3]. Refining Sector Summary - The report notes that U.S. tariffs on Indian goods have raised market concerns, but a decrease in U.S. crude, gasoline, and distillate inventories has supported prices [2]. - As of August 29, 2025, Brent and WTI crude prices were $68.12 and $64.01 per barrel, respectively, showing slight increases from the previous week [13]. - Domestic refined oil prices have slightly decreased, while overseas prices have generally increased [2]. Chemical Sector Summary - Chemical prices are generally weak, with price differentials narrowing, although some products have seen structural demand-driven price improvements [2]. - Polyethylene prices have increased slightly, while polypropylene prices have weakened, leading to an overall narrowing of price differentials [53]. - EVA prices have risen significantly due to increased procurement in the photovoltaic sector, with price differentials widening [53]. Polyester Sector Summary - Polyester product prices have seen slight increases due to raw material price support, with PX costs strengthening [88]. - The report indicates that the supply of polyester long filaments has slightly decreased due to maintenance and operational issues, while demand is showing signs of improvement as the autumn season approaches [107]. - The average prices for POY, FDY, and DTY are reported at 6878.57 CNY/ton, 7135.00 CNY/ton, and 8028.57 CNY/ton, respectively [107]. Performance of Major Refining Companies - As of August 29, 2025, the stock price changes for six major refining companies were as follows: Rongsheng Petrochemical (+0.0%), Hengli Petrochemical (+2.98%), Dongfang Shenghong (+5.02%), Hengyi Petrochemical (+3.34%), Tongkun Co. (+2.80%), and Xin Fengming (+5.07%) [130]. - Over the past month, stock price changes were: Rongsheng Petrochemical (+6.71%), Hengli Petrochemical (+12.09%), Dongfang Shenghong (+7.90%), Hengyi Petrochemical (+6.39%), Tongkun Co. (+18.88%), and Xin Fengming (+24.84%) [130]. Industry Index Performance - The report states that the Cinda Refining Index has increased by 43.20% since its inception, outperforming the oil and petrochemical industry index, which rose by 22.26% [133].