证券研究报告 基础化工周报： 油价高位支撑化工品价格上涨，固体蛋氨酸价格突破40元/公斤 大化工首席证券分析师：陈淑娴，CFA 执业证书编号：S0600523020004 联系方式：chensx@dwzq.com.cn 石化化工证券分析师：周少玟 执业证书编号：S0600525070005 联系方式：zhoushm@dwzq.com.cn 2026年3月22日 请务必阅读正文之后的免责声明部分 投资要点 2 ◼ 【聚氨酯板块】本周（3月16日-3月20日，下同）纯MDI/聚合MDI/TDI行业均价为22000/16943/17771元/吨，环比分别 +1543/+443/-225元/吨，纯MDI/聚合MDI/TDI行业毛利分别为6780/2723/4264元/吨，环比分别+1605/+505/-49元/吨。 ◼ 【油煤气烯烃板块】 ①本周乙烷/丙烷/动力煤/石脑油均价分别为1228/7335/520/7177元/吨，环比分别-21/+959/+0/+628 元/吨。②本周聚乙烯均价为8810元/吨，环比-55元/吨，乙烷裂解/CTO/石脑油裂解制聚乙烯理论利润分别为2001/2539/- 2168元/吨，环比 ...

行 业 及 产 业 基础化工 2026 年 03 月 22 日 高油价下煤化工等能源套利空间再 扩大，蛋氨酸景气持续提升，CAC 农展会反馈积极 看好 ——《化工周报 26/3/16-26/3/20》 相关研究 《生物基 PDO 格局优化，台积电资本开支 大幅增加，半导体材料景气持续上行—— 《化工周报 26/1/12-26/1/16》》 2026/01/18 证券分析师 马昕晔 A0230511090002 maxy@swsresearch.com 宋涛 A0230516070001 songtao@swsresearch.com 研究支持 任杰 A0230522070003 renjie@swsresearch.com 赵文琪 A0230523060003 zhaowq@swsresearch.com 邵靖宇 A0230524080001 shaojy@swsresearch.com 周超 A0230525090001 zhouchao@swsresearch.com 李绍程 A0230525070002 lisc@swsresearch.com 李彦宏 A0230125030002 liyh@swsre ...

1. Report Industry Investment Rating - No information provided in the given content 2. Core View of the Report - The tense situation in the Middle East has caused high - level fluctuations in oil prices, which in turn drives up the overall prices of chemical products [1] 3. Summary by Relevant Catalogs 3.1 Basic Chemical Weekly Data Briefing 3.1.1 Related Company Performance Tracking - The Basic Chemical Index had a 0.6% increase in the past week, 5.4% in the past month, 27.1% in the past three months, 49.5% in the past year, and 19.2% since the beginning of 2026 [8] - Among related companies, the stock prices of Baofeng Energy had significant increases, with a 21.2% increase in the past week, 44.6% in the past month, 95.6% in the past three months, 112.9% in the past year, and 76.8% since the beginning of 2026; while Wanhua Chemical's stock price decreased by 9.1% in the past week [8] 3.1.2 Related Company Profit Tracking - The total market value, net profit attributable to the parent company, PE, and PB of companies such as Wanhua Chemical, Baofeng Energy, Satellite Chemical, Hualu Hengsheng, New Hope Liuhe, and Adisseo were presented, with some data being the forecasts of Soochow Securities Research Institute [8] 3.1.3 Industry Chain Data - **Polyurethane Industry Chain**: The weekly average prices of pure MDI, polymer MDI, and TDI were 20457 yuan/ton, 16500 yuan/ton, and 17996 yuan/ton respectively, with month - on - month increases of 2114 yuan/ton, 1893 yuan/ton, and 2283 yuan/ton respectively; the corresponding gross profits were 5175 yuan/ton, 2218 yuan/ton, and 4510 yuan/ton, with month - on - month changes of +576 yuan/ton, +355 yuan/ton, and - 33 yuan/ton respectively [2][8] - **Oil - Gas - Olefin Industry Chain**: The average prices of ethane, propane, steam coal, and naphtha were 1250 yuan/ton, 6376 yuan/ton, 520 yuan/ton, and 6435 yuan/ton respectively, with month - on - month increases of 44 yuan/ton, 887 yuan/ton, 0 yuan/ton, and 1211 yuan/ton respectively. The average price of polyethylene was 8865 yuan/ton, with a month - on - month increase of 1215 yuan/ton; the theoretical profits of ethane cracking, CTO, and naphtha cracking to produce polyethylene were 1997 yuan/ton, 2556 yuan/ton, and - 1426 yuan/ton respectively, with month - on - month changes of +753 yuan/ton, +793 yuan/ton, and - 383 yuan/ton respectively. The average price of polypropylene was 8910 yuan/ton, with a month - on - month increase of 1640 yuan/ton; the theoretical profits of PDH, CTO, and naphtha cracking to produce polypropylene were - 781 yuan/ton, 2798 yuan/ton, and - 1028 yuan/ton respectively, with month - on - month changes of +306 yuan/ton, +1088 yuan/ton, and - 89 yuan/ton respectively [2][8] - **Coal - Chemical Industry Chain**: The average prices of synthetic ammonia, urea, DMF, and acetic acid were 2087 yuan/ton, 1839 yuan/ton, 5114 yuan/ton, and 2767 yuan/ton respectively, with month - on - month increases of 62 yuan/ton, 21 yuan/ton, 1005 yuan/ton, and 191 yuan/ton respectively; the corresponding gross profits were 88 yuan/ton, 154 yuan/ton, 428 yuan/ton, and 383 yuan/ton, with month - on - month increases of 63 yuan/ton, 5 yuan/ton, 169 yuan/ton, and 4 yuan/ton respectively [2][10] - **Animal Nutrition Industry Chain**: The average prices of VA, VE, solid methionine, and liquid methionine were 64.9 yuan/kg, 73.1 yuan/kg, 31.6 yuan/kg, and 19.0 yuan/kg respectively, with month - on - month increases of 4.4 yuan/kg, 9.7 yuan/kg, 10.7 yuan/kg, and 3.3 yuan/kg respectively [2][10] 3.2 Basic Chemical Weekly Report 3.2.1 Basic Chemical Index Trend - No detailed data provided in the given content 3.2.2 Polyurethane Plate - Analyzed the price trends and price - spread situations of pure MDI, polymer MDI, and TDI in China [15][18] 3.2.3 Oil - Gas - Olefin Plate - Studied the price trends of MB ethane, NYMEX natural gas, domestic steam coal, naphtha, crude oil, and propane, as well as the profitability of different processes such as ethane cracking to produce PE, PDH to produce PP, coal - to - PE, coal - to - PP, and naphtha - to - PE/PP [22][23][26][28][29][34][36][37] 3.2.4 Coal - Chemical Plate - Analyzed the price and gross - profit trends of coal - coking products (coking coal, coke), traditional coal - chemical products (synthetic ammonia, methanol, urea, DMF, acetic acid), and new materials (DMC, oxalic acid, octanol, adipic acid, caprolactam, PA6, PA66) [10][39][40][42][46][48][51][53] 3.2.5 Animal Nutrition Plate - Studied the price trends of VE, solid methionine, and liquid methionine [54][56]

Investment Rating - The report maintains an "Optimistic" rating for the chemical industry [2][3]. Core Insights - The report highlights that geopolitical conflicts have led to a significant increase in oil prices, with Brent crude reaching $93 per barrel as of March 6, 2026. If the Strait remains blocked for 4-6 weeks, prices may rise above $120, impacting the chemical sector positively in the short term [2][3]. - The report indicates that the chemical sector is experiencing upward price trends for MDI, TDI, and methionine due to increased costs and supply constraints, suggesting a potential price surge in the pesticide sector as well [2][3]. - The report emphasizes the importance of focusing on key materials for growth, particularly in semiconductor materials and packaging materials, as well as the impact of "anti-involution" policies accelerating the exit of outdated capacities [2][3]. Summary by Sections Macro Economic Analysis - Oil prices have surged due to geopolitical tensions, with Brent crude at $93 per barrel. If the situation persists, prices could exceed $120, which would have significant implications for the chemical industry [3][4]. - Coal prices are stabilizing, and natural gas prices are expected to decline as the U.S. accelerates its export facilities [3]. Chemical Sector Dynamics - The report notes that MDI and TDI prices are rising due to sustained cost pressures and supply constraints, with domestic companies controlling shipment volumes [2][3]. - The methionine market is expected to recover, with prices increasing to 22.5 yuan/kg, driven by geopolitical disruptions affecting supply [2][3]. Investment Recommendations - The report suggests focusing on various chains, including textile, agricultural chemicals, and export-related sectors, with specific companies highlighted for potential investment [2][3]. - Key companies to watch include Wanhua Chemical, Cangzhou Dahua, and others in the agricultural sector like Yangnong Chemical and Runfeng Co., which are expected to benefit from rising prices [2][3]. Company Valuation Insights - The report provides a valuation table for key companies, indicating their market capitalization and projected earnings, with specific recommendations for buy, hold, or sell based on their performance [14][15].

1. Report Industry Investment Rating No information provided in the given text. 2. Report's Core View The report focuses on the weekly data of the basic chemical industry, showing the price and profit changes of various chemical products due to the intensification of the Middle - East conflict, which has led to significant price increases in chemicals such as olefins [1][2]. 3. Summary by Relevant Catalogs 3.1 Basic Chemical Weekly Data Briefing - **Related Company Performance** - **Stock Price Fluctuations**: The basic chemical index had a -0.6% change in the past week, 9.6% in the past month, 23.6% in the past three months, 52.0% in the past year, and 18.5% since the beginning of 2026. Companies like Wanhua Chemical, Baofeng Energy, Satellite Chemical, Hualu Hengsheng, New Hope Liuhe, and Andisul also showed different degrees of price changes [8]. - **Profit Tracking**: The report provides the total market value,归母净利润, PE, and PB of relevant companies from 2024A to 2027E [8]. - **Product Data** - **Polyurethane Industry**: This week, the average prices of pure MDI, polymer MDI, and TDI were 18343, 14607, and 15713 yuan/ton respectively, with week - on - week increases of 829, 679, and 957 yuan/ton. Their respective gross profits were 4599, 1863, and 3838 yuan/ton, with week - on - week increases of 370, 220, and 117 yuan/ton [2][8]. - **Oil, Gas, and Olefin Industry** - **Raw Material Prices**: The average prices of ethane, propane,动力煤, and naphtha were 1206, 5490, 520, and 5085 yuan/ton respectively, with week - on - week changes of +95, +1006, +0, and +770 yuan/ton [2]. - **Product Prices and Profits**: The average price of polyethylene was 7554 yuan/ton, with a week - on - week increase of 424 yuan/ton. The theoretical profits of ethane cracking, CTO, and naphtha cracking to produce polyethylene were 1160, 1657, and -1006 yuan/ton respectively, with week - on - week changes of +153, +240, and -537 yuan/ton. The average price of polypropylene was 7092 yuan/ton, with a week - on - week increase of 502 yuan/ton. The theoretical profits of PDH, CTO, and naphtha cracking to produce polypropylene were -1056, 1591, and -917 yuan/ton respectively, with week - on - week changes of -434, +333, and -442 yuan/ton [2]. - **Coal Chemical Industry**: The average prices of synthetic ammonia, urea, DMF, and acetic acid were 2025, 1817, 4109, and 2577 yuan/ton respectively, with week - on - week changes of -23, +31, +91, and +65 yuan/ton. Their respective gross profits were 25, 125, 24, and 375 yuan/ton, with week - on - week changes of -37, +4, +39, and +1 yuan/ton [2]. - **Animal Nutrition Industry**: The average prices of VA, VE, solid methionine, and liquid methionine were 60.5, 60.9, 19.9, and 15.2 yuan/kg respectively, with week - on - week changes of +0.0, +3.4, +1.4, and +0.8 yuan/kg [2]. 3.2 Basic Chemical Weekly Report - **2.1 Basic Chemical Index Trend**: No detailed content provided in the given text. - **2.2 Polyurethane Plate**: The report shows the price trends and price - spread situations of pure MDI, polymer MDI, and TDI in China [14][16]. - **2.3 Oil, Gas, and Olefin Plate** - **Raw Material Price Trends**: It includes the price trends of MB ethane, NYMEX natural gas, East China propane, Brent crude oil, domestic动力煤, and naphtha [21][22][27]. - **Profit Situations**: It presents the profit situations of ethane cracking to produce PE, PDH to produce PP, coal - made PE and PP, and naphtha - made PE and PP, as well as the profit comparisons of different routes for producing polyethylene and polypropylene [30][31][35][37][38]. - **2.4 Coal Chemical Plate** - **Coal - Coking Products**: It shows the price trends and gross profits of domestic coking coal and coke [40][41]. - **Traditional Coal Chemical Products**: It presents the price and gross profit situations of synthetic ammonia, methanol, urea, DMF, and acetic acid [43][47][49]. - **New Materials**: It shows the price and gross profit situations of DMC, oxalic acid, octanol, adipic acid, caprolactam, PA6, and PA66 [9]. - **2.5 Animal Nutrition Plate**: It shows the price trends of VA, VE, solid methionine, and liquid methionine [55][57][61].

1. Industry Investment Rating No investment rating information is provided in the report. 2. Core Viewpoints The report presents a comprehensive analysis of the basic chemical industry's weekly data, covering price and profit changes in multiple sectors such as polyurethane, oil - gas - olefin, coal - chemical, and animal nutrition, and also tracks the stock price performance and profitability of related listed companies [1][2][8]. 3. Summary by Directory 3.1 Basic Chemical Weekly Data Briefing - **Related Company Performance Tracking**: - **Stock Price Changes**: The basic chemical index decreased by 2.1% in the past week, increased by 9.0% in the past month, 17.6% in the past three months, 48.7% in the past year, and 10.4% since the beginning of 2026. Among the related listed companies, New Hope Liuhe Co., Ltd. (002001.SZ) had a 6.8% increase in the past week, while other companies such as Wanhua Chemical Group Co., Ltd. (600309.SH) and Baofeng Energy Group Co., Ltd. (600989.SH) had varying degrees of decline [8]. - **Profitability**: The report provides the total market value, stock price, net profit attributable to the parent company, PE, and PB of related listed companies from 2024A to 2027E [8]. - **Industry Chain Data**: - **Polyurethane Industry Chain**: This week, the average prices of pure MDI, polymer MDI, and TDI were 17,500 yuan/ton, 13,900 yuan/ton, and 14,377 yuan/ton respectively. The corresponding weekly changes were - 43 yuan/ton, + 36 yuan/ton, and + 292 yuan/ton, and the gross margins were 4,097 yuan/ton, 1,497 yuan/ton, and 2,345 yuan/ton respectively [2][8]. - **Oil - Gas - Olefin Industry Chain**: The average prices of ethane, propane, steam coal, and naphtha were 1,277 yuan/ton, 4,399 yuan/ton, 520 yuan/ton, and 4,137 yuan/ton respectively, with weekly changes of - 139 yuan/ton, + 51 yuan/ton, 0 yuan/ton, and + 63 yuan/ton. The theoretical profits of polyethylene production through different processes and polypropylene production through different processes also had corresponding changes [2][8]. - **Coal - Chemical Industry Chain**: The average prices of synthetic ammonia, urea, DMF, and acetic acid were 2,119 yuan/ton, 1,758 yuan/ton, 4,004 yuan/ton, and 2,511 yuan/ton respectively, with weekly changes of - 65 yuan/ton, + 13 yuan/ton, + 41 yuan/ton, and - 69 yuan/ton. The corresponding gross margins also changed [2]. - **Animal Nutrition Industry Chain**: The average prices of VA, VE, solid methionine, and liquid methionine were 61.4 yuan/kg, 55.9 yuan/kg, 18.2 yuan/kg, and 14.3 yuan/kg respectively, with weekly changes of - 0.1 yuan/kg, + 0.9 yuan/kg, + 0.3 yuan/kg, and + 0.1 yuan/kg [2][9]. 3.2 Basic Chemical Weekly Report - **Basic Chemical Index Trend**: The report does not elaborate on the basic chemical index trend but focuses on the performance data of the index and related companies [8]. - **Polyurethane Plate**: Analyzes the price trends and price - spread situations of pure MDI, polymer MDI, and TDI in China [16][19]. - **Oil - Gas - Olefin Plate**: Discusses the price trends of raw materials such as ethane, propane, natural gas, and crude oil, as well as the profitability of different processes for producing polyethylene and polypropylene [23][31][38]. - **Coal - Chemical Plate**: Covers the price and gross margin trends of coal - coking products and traditional coal - chemical products, as well as some new materials [40][45][52]. - **Animal Nutrition Plate**: Analyzes the price trends of VA, VE, solid methionine, and liquid methionine [57][59][63].

Investment Rating - The industry investment rating is "Overweight," indicating an expected outperformance of the industry index relative to the benchmark by more than 5% over the next six months [66]. Core Insights - The report highlights strong price support from factories, with solid methionine prices rebounding [1]. - The average prices for various chemical products are provided, showing fluctuations in pricing and profitability across different segments [2]. - The report identifies key listed companies in the chemical sector, including Wanhua Chemical, Baofeng Energy, and others [2]. Summary by Sections 2.1 Basic Chemical Index Trends - The report includes a weekly overview of the basic chemical index trends, indicating overall market movements [10]. 2.2 Polyurethane Sector - The average prices for pure MDI, polymer MDI, and TDI are reported as 17,543, 13,864, and 14,085 CNY/ton respectively, with changes of -171, -36, and +110 CNY/ton [2]. - The gross margins for these products are 4,171, 1,493, and 2,363 CNY/ton, reflecting changes of -332, -196, and -15 CNY/ton [2]. 2.3 Oil, Coal, and Olefin Sector - Average prices for ethane, propane, thermal coal, and naphtha are reported as 1,416, 4,349, 520, and 4,074 CNY/ton respectively, with increases of +147, +52, +0, and +171 CNY/ton [2]. - The average price for polyethylene is 7,162 CNY/ton, showing a rise of +62 CNY/ton [2]. - The theoretical profits for ethane cracking, CTO, and naphtha cracking for polyethylene production are reported as 694, 1,438, and -245 CNY/ton, with respective changes of -161, +41, and -127 CNY/ton [2]. 2.4 Coal Chemical Sector - Average prices for synthetic ammonia, urea, DMF, and acetic acid are 2,184, 1,745, 3,962, and 2,579 CNY/ton respectively, with changes of -27, +5, +68, and -21 CNY/ton [2]. - The gross margins for these products are 199, 72, -92, and 445 CNY/ton, reflecting changes of -21, +1, +10, and -8 CNY/ton [2]. 2.5 Animal Nutrition Sector - Average prices for VA, VE, solid methionine, and liquid methionine are reported as 61.5, 55.1, 17.9, and 14.2 CNY/kg respectively, with changes of -0.7, +0.6, +0.3, and +0.0 CNY/kg [2].

Investment Rating - The industry investment rating is "Overweight," indicating an expected outperformance of the industry index relative to the benchmark by more than 5% over the next six months [67]. Core Insights - The report highlights significant price fluctuations in the chemical sector due to extreme weather conditions affecting natural gas prices in the U.S. [1]. - The average prices for various chemical products, including pure MDI, polymer MDI, and TDI, have shown a decline compared to the previous week, with respective price changes of -129, -114, and -213 CNY/ton [2]. - The report provides a detailed analysis of profit margins across different segments, indicating a decrease in margins for pure MDI and polymer MDI, while TDI margins remained relatively stable [2]. Summary by Sections 2.1 Basic Chemical Index Trends - The basic chemical index has shown a weekly increase of 7.3% as of January 23, 2026, with a year-to-date increase of 16.8% [8]. 2.2 Polyurethane Sector - The average prices for pure MDI, polymer MDI, and TDI are reported at 17,714, 13,900, and 13,975 CNY/ton respectively, with corresponding profit margins of 4,503, 1,689, and 2,459 CNY/ton [2][16]. 2.3 Oil, Coal, and Olefin Sector - Ethane and propane prices have increased by 210 and 21 CNY/ton respectively, while the average price for coal remains stable at 520 CNY/ton [2][22]. - The average price for polyethylene is reported at 7,100 CNY/ton, showing a slight decrease of 15 CNY/ton [2][28]. 2.4 Coal Chemical Sector - The average prices for synthetic ammonia, urea, DMF, and acetic acid are 2,211, 1,740, 3,894, and 2,600 CNY/ton respectively, with minor fluctuations in profit margins [2][41]. 2.5 Animal Nutrition Sector - The average prices for VA, VE, solid egg, and liquid egg are reported at 62.2, 54.5, 17.6, and 14.2 CNY/kg respectively, with minimal changes observed [2][54].

Report Summary 1. Report Industry Investment Rating No information provided in the content. 2. Core Viewpoints of the Report - This week, the average prices of pure MDI, polymerized MDI, and TDI in the polyurethane industry were 17,843 yuan/ton, 14,014 yuan/ton, and 14,188 yuan/ton respectively, with week - on - week decreases of 200 yuan/ton, 157 yuan/ton, and 290 yuan/ton. Their respective gross profits also declined [2]. - In the oil - gas - olefin sector, prices of raw materials such as ethane, propane, etc. had different changes this week. The average prices of polyethylene and polypropylene increased, and the theoretical profits of different production routes also changed accordingly [2]. - In the coal - chemical industry, the average prices of synthetic ammonia, urea, DMF, and acetic acid had slight fluctuations, and their gross profits also changed slightly [2]. - In the animal nutrition products sector, the average prices of VA, VE, solid methionine, and liquid methionine had minor changes this week [2]. 3. Summary by Relevant Catalogs 1. Basic Chemical Weekly Data Briefing - **Related Company Performance Tracking** - The Basic Chemical Index had a weekly increase of 0.9%, a monthly increase of 12.3%, a quarterly increase of 12.9%, an annual increase of 44.7%, and a year - to - date increase of 6.0% as of 2026/1/16. Different chemical companies had different performance in terms of stock price changes and earnings. For example, Wanhua Chemical's stock price decreased by 0.8% this week, while Baofeng Energy's increased by 5.2% [8]. - The report also provided data on the total market value, net profit attributable to the parent company, PE, and PB of relevant companies from 2024A to 2027E [8]. - **Industry Chain Data** - **Polyurethane Industry Chain**: The average prices and gross profits of pure MDI, polymerized MDI, and TDI decreased this week. Their respective seven - year quantiles were 51%, 45%, and 65% for prices, and 71%, 49%, and 71% for gross profits [8]. - **Oil - Gas - Olefin Industry Chain**: - **Raw Material Prices**: The average prices of ethane, propane, NYMEX natural gas, Brent crude oil, and naphtha had different changes. Their ten - year quantiles also varied [8]. - **Profit Comparison of Different Routes**: The single - ton profits of different production routes for polyethylene and polypropylene had different changes compared to the previous week, the beginning of the year, and the same period last year [8]. - **C2 and C3 Plates**: The average prices and price differences between products and raw materials in the C2 and C3 plates had different changes, with different ten - year quantiles. For example, the price of ethylene decreased by 90 yuan/ton, and the price difference between HDPE and ethylene increased by 353 yuan/ton [10]. - **Coal - Chemical Industry Chain**: - **Coal - Coke Products**: The average prices of coking coal and coke decreased, and the gross profit of coke was - 47 yuan/ton, with a 3 - yuan decrease [10]. - **Traditional Coal - Chemical Products**: The average prices and gross profits of synthetic ammonia, methanol, urea, DMF, and acetic acid had different changes, with different seven - year quantiles [10]. - **New Materials**: The average prices and gross profits of DMC, oxalic acid, octanol, adipic acid, caprolactam, PA6, and PA66 had different changes, with different seven - year quantiles [10]. - **Animal Nutrition Products Industry Chain**: The average prices of VA, VE, solid methionine, and liquid methionine changed slightly, with different ten - year quantiles [10]. 2. Basic Chemical Weekly Report - **2.1 Basic Chemical Index Trends**: The report did not provide specific content in the text, only the title. - **2.2 Polyurethane Sector**: The report presented the price trends of pure MDI, polymerized MDI, and TDI in China, as well as their price - spread situations [16][18][20]. - **2.3 Oil - Gas - Olefin Sector**: It showed the price trends of raw materials such as MB ethane, NYMEX natural gas, East China propane, Brent crude oil, domestic steam coal, and naphtha, and the profit situations of different production routes for polyethylene and polypropylene [24][27][29]. - **2.4 Coal - Chemical Sector**: The report presented the price trends and gross profit situations of coal - coke products, traditional coal - chemical products, and new materials in the coal - chemical industry [40][46][51]. - **2.5 Animal Nutrition Products Sector**: It showed the price trends of VA, VE, solid methionine, and liquid methionine [55][59][61].

Investment Rating - The industry investment rating is "Overweight," indicating an expected outperformance of the industry index relative to the benchmark by more than 5% over the next six months [70]. Core Insights - The average prices for pure MDI, polymer MDI, and TDI are reported at 18,043, 14,171, and 14,478 CNY/ton respectively, with TDI showing a week-on-week increase of 59 CNY/ton [2]. - The average prices for ethane, propane, and coal are 1,165, 4,172, and 520 CNY/ton respectively, with ethane decreasing by 85 CNY/ton and propane increasing by 45 CNY/ton [2]. - The average prices for synthetic ammonia, urea, DMF, and acetic acid are 2,213, 1,724, 3,787, and 2,546 CNY/ton respectively, with synthetic ammonia decreasing by 34 CNY/ton and urea increasing by 12 CNY/ton [2]. - The average prices for animal nutrition products such as VA and VE are 62.5 and 54.9 CNY/kg respectively, with no significant changes [2]. Summary by Sections Polyurethane Sector - The average prices for pure MDI, polymer MDI, and TDI are 18,043, 14,171, and 14,478 CNY/ton respectively, with TDI showing a week-on-week increase of 59 CNY/ton [2][16][20]. Oil, Coal, and Olefins Sector - Ethane and propane average prices are 1,165 and 4,172 CNY/ton respectively, with ethane decreasing by 85 CNY/ton and propane increasing by 45 CNY/ton [2][24][31]. - The average price for polyethylene is 6,800 CNY/ton, reflecting a week-on-week increase of 30 CNY/ton [2]. Coal Chemical Sector - The average prices for synthetic ammonia, urea, DMF, and acetic acid are 2,213, 1,724, 3,787, and 2,546 CNY/ton respectively, with synthetic ammonia decreasing by 34 CNY/ton and urea increasing by 12 CNY/ton [2][40][48][49]. Animal Nutrition Sector - The average prices for VA, VE, solid egg amino acid, and liquid egg amino acid are 62.5, 54.9, 17.6, and 14.2 CNY/kg respectively, with no significant changes [2][56][62].