证券研究报告 基础化工周报：尿素价格回升 能源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 能源化工研究助理：周少玟 执业证书编号：S0600123070007 联系方式：zhoushm@dwzq.com.cn 2025年05月18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】本周纯MDI/聚合MDI/TDI行业均价为17620/16300/11718元/吨，环比分别+345/+1150/+693元/ 吨，纯MDI/聚合MDI/TDI行业毛利分别为4280/3880/458元/吨，环比分别+98/+855/+607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1374/4514/531/4145元/吨，环比分别+17/-91/- 9/+130元/吨。②本周聚乙烯均价为7897元/吨，环比+28元/吨，乙烷裂解/CTO/石脑油裂解制聚乙烯理论利润分别 为1157/1897/114元/吨，环比分别+15/+42/-90元/吨。③本周聚丙烯均价为7200元/吨，环比+0元/吨， PD ...

Investment Rating - The report maintains an investment rating of "Synchronize with the Market" for the basic chemical industry [5][8]. Core Insights - The basic chemical industry index fell by 3.61% in April 2025, ranking 20th among 30 major industries, with a year-on-year decline of 0.37% [5][11]. - The report emphasizes the importance of focusing on potassium fertilizer and phosphorus chemical industries, which are expected to see price recovery due to tightening supply and strong demand [5][8]. Market Review - In April 2025, 12 out of 33 sub-industries in the basic chemical sector saw price increases, with daily chemical products, inorganic salts, and fluorine chemicals leading the gains at 8.56%, 4.37%, and 3.46% respectively [12]. - The overall performance of the basic chemical sector was characterized by a significant price drop in chemical products, influenced by falling international oil prices [5][8]. Industry and Company News - The report highlights that the chemical raw materials and products manufacturing industry achieved a total profit of 78.76 billion yuan in Q1 2025, a slight year-on-year decline of 0.4% [16]. - The report notes that the potassium fertilizer sector is characterized by strong resource attributes and a concentrated supply structure, which is expected to drive price recovery [5][8]. Product Price Tracking - In April 2025, the prices of chemical raw materials and products saw a year-on-year decline of 4.1%, with significant impacts from the drop in oil prices [20][21]. - The report tracks the price movements of various chemical products, indicating a general downward trend due to external market pressures [5][8]. Investment Strategy - The investment strategy for May 2025 suggests continued focus on potassium fertilizer and phosphorus chemical industries, which are expected to benefit from tightening supply and robust demand [5][8].

Core Viewpoint - The article highlights the significant contributions of Professor Liu Dehua from Tsinghua University in the field of bio-based materials and technologies, particularly his role in the upcoming Bio-based 2025 conference and his recent recognition as a foreign academician by the Canadian Academy of Engineering [2][3]. Group 1: Professor Liu Dehua's Achievements - Professor Liu Dehua has been appointed as an advisory expert for the 10th Bio-based Conference and Exhibition, and he will also serve as a judge for the New Leaf Award 2025 [1]. - He has led key national projects in bio-refining technology, including the development of a 10,000-ton production facility for bio-based 1,3-propanediol, filling a domestic gap [2]. - Liu has been recognized internationally for his innovations in biofuels and biochemical production, receiving multiple awards including the Blue Sky Award from the United Nations Industrial Development Organization [3]. Group 2: Bio-based 2025 Conference Overview - The Bio-based 2025 conference will take place from May 25-27, 2025, in Shanghai, featuring over 100 industry leaders and experts [7]. - The event will consist of three main components: industry conferences, innovation exhibitions, and the New Leaf Award evaluation and ceremony, with over 1500 industry participants expected [7]. - The conference aims to accelerate the integration of technological and industrial innovation in the bio-based sector, addressing global perspectives and downstream user needs [7]. Group 3: Conference Agenda Highlights - The agenda includes a strategic forum on the bio-based industry, a youth scientist forum, and various specialized sessions focusing on key chemical innovations and sustainable applications [22][23]. - Notable sessions will cover topics such as bio-based polymers, sustainable packaging, and innovations in bio-based fibers and materials [22][23]. - The event will also feature networking opportunities, including brand demand matching sessions and expert consultations for technology collaboration [56][59].

-0.03(-0.56%) -0.09(-1.18%) -0.04(-1.00%) 保险 中国太保 7.0 中国人保 中国平安 ■ 3630.79亿市值 3216.08亿市值 9722.44亿市值 12.09亿成交额 24.99亿成交额 11.96亿成交额 53.39 8.21 33.43 -0.61(-1.79%) -0.86(-1.59%) -0.07(-0.85%) 酸酒行业 贵州茅台 山西汾酒 五粮液 20276.67亿市值 2500.93亿市值 5088.01亿市值 22.89亿成交额 37.15亿成交额 6.49亿成交额 131.08 205.00 1614.13 -17.88(-1.10%) -4.50(-2.15%) -2.59(-1.94%) 半导体 XD海光信 北方华创 寒武纪-U HYGON 3218.98亿市值 2289.48亿市值 2788.61亿市值 10.79亿成交额 24.03亿成交额 18.85亿成交额 428.60 668.00 138.49 -0.30(-0.07%) -9.00(-1.33%) -3.45(-2.43%) 汽车整车 铁路公路 比亚进 长城汽车 京沪高铁 ...

保险 中国太保 队 中国人保 中国平安 ■《》 3608.68亿市值 3198.76亿市值 9747.94亿市值 7.70亿成交额 15.63亿成交额 8.21亿成交额 53.53 33.25 8.16 -0.79(-2.32%) -0.72(-1.33%) -0.12(-1.45%) 酸酒行业 贵州茅台 山西汾酒 五粮液 20338.97亿市值 2513.98亿市值 5121.78亿市值 19.61亿成交额 11.13亿成交额 3.58亿成交额 1619.09 131.95 206.07 -12.92(-0.79%) -3.43(-1.64%) -1.72(-1.29%) 半导体 北方华创 寒武纪-U XD海光信 HYGON 2297.76亿市值 2790.28亿市值 3201.78亿市值 14.68亿成交额 12.73亿成交额 6.45亿成交额 430.15 668.40 137.75 +1.25(+0.29%) -8.60(-1.27%) -4.19(-2.95%) 汽车整车 铁路公路 比亚迪 长城汽车 京沪高铁 11783.98亿市值 2020.91亿市值 2916.93亿市值 2.23亿成交额 52 ...

Group 1 - The Ministry of Natural Resources will hold a press conference on May 16 to discuss the role of land spatial planning in promoting high-quality urban development [2] - The 2025 Data Security Development Conference will take place from May 16 to 18 in Zhejiang, focusing on marketization of data elements and data security driven by AI [3] - A total of 12 companies will have their restricted shares unlocked today, with a total unlock volume of 116 million shares, amounting to a market value of 2.325 billion yuan [4] Group 2 - 34 companies have disclosed their stock repurchase progress, with 4 companies announcing new repurchase plans and 17 companies having their plans approved by shareholders [5] - The People's Bank of China will have 77 billion yuan of 7-day reverse repos maturing today, with an operation rate of 1.4% [5] - Upcoming data releases include the annualized new housing starts in the US for April and the seasonally adjusted trade balance for the Eurozone for March [6]

Group 1 - The core viewpoint of the news is the performance of the CSI New Materials Theme Index, which has shown a decline in recent trading sessions despite a slight increase over the past month [1] - The CSI New Materials Theme Index has decreased by 1.58% to 2886.44 points, with a trading volume of 21.047 billion yuan [1] - Over the past month, the index has increased by 3.35%, but it has decreased by 2.25% over the last three months and by 1.24% year-to-date [1] Group 2 - The CSI New Materials Theme Index includes 50 listed companies involved in advanced steel, non-ferrous metals, chemicals, inorganic non-metals, and other new materials [1] - The index's top ten holdings are: CATL (10.61%), North Huachuang (9.86%), Wanhua Chemical (7.81%), Longi Green Energy (6.6%), Huayou Cobalt (3.41%), Sanan Optoelectronics (3.14%), Tongwei Co. (3.35%), and others [1] - The market share of the index's holdings is 54.72% from the Shenzhen Stock Exchange, 44.74% from the Shanghai Stock Exchange, and 0.54% from the Beijing Stock Exchange [1] Group 3 - The industry composition of the index's sample shows that industrials account for 43.54%, materials for 33.04%, and information technology for 23.42% [2] - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2] - Public funds tracking new materials include various ETFs and mutual funds, such as Tianhong CSI New Materials C, Huaxia CSI New Materials Theme ETF, and others [2]

关于回购股份注销减少注册资本通知债权人的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重大遗 漏，并对其内容的真实性、准确性和完整性承担法律责任。 一、通知债权人的原由 万华化学集团股份有限公司（以下简称"公司"）于 2025 年 4 月 12 日、2025 年 5 月 15 日分别召开了第九届董事会 2025 年第一次临时会议、2024 年年度股 东大会，审议通过了《关于以集中竞价交易方式回购公司部分股份的议案》，同 意公司自股东大会审议通过之日起 12 个月内使用不低于人民币 30,000.00 万元 （含），不高于人民币 50,000.00 万元（含）的自有资金，通过集中竞价交易方 式以不超过人民币 99.36 元/股（含）的价格回购公司股份，本次回购股份将全 部予以注销并减少公司注册资本，具体回购股份的数量和占公司总股本的比例， 以回购方案实施完毕或回购期限届满时实际回购的股份数量为准。上述回购方案 及股东大会决议内容详见公司分别 2025 年 4 月 16 日、2025 年 5 月 16 日在上海 证券交易所网站（www.sse.com.cn）披露的《万华化学集团股份有 ...

万华化学集团股份有限公司 章程 1 章 程 目 录 第三节 股份转让 第四章 股东和股东大会 第一节 股东 第二节 股东大会的一般规定 第三节 股东大会的召集 第四节 股东大会的提案与通知 第五节 股东大会的召开 第六节 股东大会的表决和决议 第五章 董事会 第一节 董事 第二节 董事会 第六章 经理及其他高级管理人员 第七章 监事会 第一节 监事 第二节 监事会 第八章 财务会计制度、利润分配和审计 第一节 财务会计制度 第二节 内部审计 第三节 会计师事务所的聘任 第九章 信息披露、通知与公告 第一节 信息披露 第二节 通知 第三节 公告 第十章 合并、分立、增资、减资、解散和清算 第一节 合并、分立、增资和减资 第二节 解散和清算 第十一章 修改章程 第十二章 附则 第一章 总则 第二节 股份增减和回购 2 第二章 经营宗旨和范围 第三章 股份 第一节 股份发行 3 万华化学集团股份有限公司章程 第一章 总则 第 1 条 为维护公司、股东和债权人的合法权益，规范公司的组织和行为，根据 《中华人民共和国公司法》（以下简称《公司法》）、《中华人民共和国证券法》 （以下简称《证券法》）和其他有关规定，制订本章 ...

证券代码：600309 证券简称：万华化学 公告编号：临 2025-28 号 万华化学集团股份有限公司 关于回购股份注销减少注册资本通知债权人的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重大遗 漏，并对其内容的真实性、准确性和完整性承担法律责任。 一、通知债权人的原由 的约定继续履行。 （一）债权申报所需材料 公司债权人如要求公司清偿债务或提供相应担保的，应根据《公司法》等法 律、行政法规等有关规定向公司提出书面要求，并随附有关证明文件。 公司债权人可持证明债权债务关系存在的合同、协议及其他凭证的原件及 复印件到公司申报债权。债权人为法人的，需同时携带法人营业执照副本原件及 复印件、法定代表人身份证明文件；委托他人申报的，除上述文件外，还需携带 法定代表人授权委托书和代理人有效身份证件的原件及复印件。债权人为自然人 的，需同时携带有效身份证件的原件及复印件；委托他人申报的，除上述文件外， 还需携带授权委托书和代理人有效身份证件的原件及复印件。 （二）债权申报联系方式 债权人可采取现场、邮寄等方式进行申报，进行债权申报的债权人需先致电 公司相关联系人进行确认，债权申报联系方式如 ...