Core Viewpoint - The company Shanghai Tunnel Engineering Co., Ltd. (隧道股份) announced that its controlling shareholder, Shanghai Urban Construction (Group) Co., Ltd., will increase its stake in the company by purchasing 21.8283 million A-shares, representing 0.6943% of the total share capital, for a total investment of RMB 132 million [1] Summary by Categories Shareholding Increase - The controlling shareholder plans to conduct the share purchase from May 16 to May 22, 2025, through centralized bidding on the Shanghai Stock Exchange [1] - The total number of shares to be acquired is 21.8283 million, which constitutes 0.6943% of the company's total share capital [1] Funding Sources - The funds for this share purchase will come from the controlling shareholder's own funds and self-raised funds [1] - The self-raised funds include a loan of up to RMB 450 million from Industrial and Commercial Bank of China [1]

Core Viewpoint - Shanghai Tunnel Engineering Co., Ltd. announced a change in the equity stake of its major shareholder, Shanghai Urban Construction (Group) Co., Ltd., which increased its holding from 30.68% to 31.05% [1][2]. Group 1: Shareholder Information - The equity change was executed by Shanghai Urban Construction (Group) Co., Ltd., which is the controlling shareholder and its action is in line with a previously disclosed shareholding increase plan [2]. - The increase in shareholding does not trigger mandatory tender offer obligations [2]. Group 2: Equity Change Details - The number of shares held before the change was not specified, but the increase in percentage indicates a direct acquisition of shares [1]. - The equity change occurred between May 19, 2025, and May 20, 2025 [1]. Group 3: Compliance and Future Plans - The equity change complies with relevant laws and regulations, including the Securities Law of the People's Republic of China and the Management Measures for the Acquisition of Listed Companies [2]. - The increase in shareholding will not lead to a change in the controlling shareholder or actual controller of the company [2]. - The shareholding increase plan is not yet fully implemented, and the company will continue to monitor and disclose information regarding the plan [2].

重要内容提示： | 权益变动方向 | 比例增加□ | | 比例减少□ | | --- | --- | --- | --- | | 权益变动前合计比例 | 30.68% | | | | 权益变动后合计比例 | 31.05% | | | | 本次变动是否违反已作出的承 | 是□ | 否□ | | | 诺、意向、计划 | | | | | 是否触发强制要约收购义务 | 是□ | 否□ | | 一、 信息披露义务人及其一致行动人的基本信息 | 证券代码：600820 | 证券简称：隧道股份 | | | 公告编号：临 | 2025-023 | | --- | --- | --- | --- | --- | --- | | 债券代码：185752 | 债券简称：22 | 隧道 | 01 | | | | 债券代码：115633 | 债券简称：23 | 隧道 | K1 | | | | 债券代码：115902 | 债券简称：23 | 隧道 | K2 | | | 上海隧道工程股份有限公司关于持股 5%以上股东权益变动 触及 1%刻度的提示性公告 上海城建（集团）有限公司保证向本公司提供的信息真实、准确、完整，没有虚假记载、误 ...

Investment Rating - The report maintains an "Overweight" rating for the construction and engineering sector [6] Core Insights - The construction sector experienced its first annual revenue decline in 2024, with a YoY decrease of 4.10%, and a net profit decline of 14.4% due to multiple pressures including a slowdown in real estate construction and traditional infrastructure investment [1][15] - The sector is expected to enter a phase of deep integration, with potential for performance improvement in the latter half of 2025 as policies take effect and the high base effect diminishes [1][21] Summary by Sections Industry Overview - In 2024, the construction sector's revenue was 8.7 trillion yuan, marking a YoY decline of 4.10%, while net profit was 168.9 billion yuan, down 14.4% [15] - The sector's gross profit margin improved slightly to 10.96%, but the net profit margin decreased to 1.94% [15][24] Financial Performance - The sector's financial expenses increased, leading to a decline in net profit margins, with a financial expense ratio of 0.86%, up 0.11 percentage points YoY [2][39] - The cash flow situation showed a net outflow of 209.7 billion yuan, a reduction of 22 billion yuan YoY, indicating some improvement in cash flow management [2][46] Subsector Analysis - Among the subsectors, only international engineering saw a profit increase of 5.5%, while other subsectors like large-scale infrastructure and chemical engineering experienced declines of 11.5% and 1.2%, respectively [3][52] - The resilience of large state-owned enterprises in the international market contrasts with the significant pressures faced by smaller and private firms [3][52] Investment Recommendations - The report suggests focusing on high-dividend value state-owned enterprises such as China State Construction, China Communications Construction, and Sichuan Road and Bridge, which are expected to benefit from stable demand and improving cash flow [5][9] - The report highlights growth opportunities in specialized engineering sectors, particularly in data centers and cleanroom engineering, which are anticipated to see rapid demand growth [5][9]

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。 重要内容提示： ? 会议召开方式：上证路演中心视频直播和网络互动 ? 投资者可于 2025 年 05 月 21 日（星期三）至 05 月 27 日（星期二） 公司邮箱 600820@stec.net 进行提问。公司将在说明会上对投资者普 遍关注的问题进行回答。 上海隧道工程股份有限公司（以下简称"公司"）已分别于 2025 年 4 月 26 日、4 月 30 日发布公司 2024 年度报告和 2025 年第一季度 报告，为便于广大投资者更全面深入地了解公司 2024 年度和 2025 年 第一季度经营成果、财务状况，公司计划于 2025 年 05 月 28 日（星 期三）09:30-11:30 举行 2024 年度暨 2025 年第一季度业绩说明会，就 投资者关心的问题进行交流。 一、说明会类型 本次投资者说明会以视频结合网络互动召开，公司将针对 2024 年度和 2025 年第一季度的经营成果及财务指标的具体情况与投资者 进行互动交流和沟通，在信息披露允许的范围内就投资者普遍关 ...

| 证券代码：600820 | 股票简称：隧道股份 | | | 编号：临 2025-022 | | --- | --- | --- | --- | --- | | 债券代码：185752 | 债券简称：22 | 隧道 | 01 | | | 债券代码：115633 | 债券简称：23 | 隧道 | K1 | | | 债券代码：115902 | 债券简称：23 | 隧道 | K2 | | 上海隧道工程股份有限公司 关于召开 2024 年度暨 2025 年第一季度业绩说明会的公告 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。 重要内容提示： https://roadshow.sseinfo.com/） 会议召开方式：上证路演中心视频直播和网络互动 投资者可于 2025 年 05 月 21 日（星期三）至 05 月 27 日（星期二） 16:00 前登录上证路演中心网站首页点击"提问预征集"栏目或通过 公司邮箱 600820@stec.net 进行提问。公司将在说明会上对投资者普 遍关注的问题进行回答。 三、参加人员 董事长兼财务总 ...

智通财经5月19日早间新闻精选 1、证监会近日发布《关于修改〈上市公司重大资产重组管理办法〉的决定》。鼓励私募基金参与上市 公司并购重组。对私募基金投资期限与重组取得股份的锁定期实施"反向挂钩"，明确私募基金投资期限 满48个月的，第三方交易中的锁定期限由12个月缩短为6个月，重组上市中控股股东、实际控制人及其 控制的关联人以外的股东的锁定期限由24个月缩短为12个月。 2、美国财政部当地时间5月16日公布的数据显示，中国由美国第二大债主变为第三大债主，英国变为第 二大债主。中国3月减持189亿美元美国国债至7654亿美元，为今年首次减持。 3、美国商务部工业与安全局发布公告，视使用华为昇腾芯片为违反美国出口管制行为。对此 ，外交部 发言人林剑5月16日表示，中方对此坚决反对，绝不接受。 4、据报道，英伟达首席执行官黄仁勋近日表示，由于美国政府限制Hopper架构的H20芯片出口至中 国，公司正重新审视中国市场战略，但未来不会再推出Hopper系列芯片。 5、在第十五届中国航展上，"九天"察打一体无人机首次亮相，预计今年6月底完成首飞任务。"九天"无 人机的一大亮点是在机腹内集成了神秘的"异构蜂巢任务舱"。这 ...

Core Viewpoint - Multiple listed companies in the Shanghai and Shenzhen markets announced significant developments, providing insights for investors [2] Investment Activities - Ningde Times plans to invest up to $225 million in the Lochpine Green Fund I, LP, focusing on carbon neutrality, with a target size of $1.5 billion [3] - Baiyun Airport intends to invest 4.5 million yuan to establish a duty-free company with partners, with a total registered capital of 45 million yuan [4] - Guizhou Moutai has repurchased a total of 2.6421 million shares, amounting to 4.05 billion yuan, representing 0.2103% of its total share capital [5] - Zhonghang Gaoke's subsidiary plans to invest 918 million yuan in enhancing capabilities for civil aviation composite materials [12] Shareholding Changes - Huaxi Group will transfer 16.01% of its shares in Chengxing Co. to Jiangyin Lianying for 511 million yuan, with no change in controlling shareholder [6] - Tunnel Co.'s controlling shareholder plans to increase its stake by investing between 250 million to 500 million yuan [13] Stock Adjustments - *ST Aonong will remove its delisting risk warning, changing its name to Aonong Biological, with a price fluctuation limit adjustment from 5% to 10% [7] - *ST Kexin will also remove its delisting risk warning, changing its name to Kexin Development, with similar price fluctuation adjustments [9] Market Performance - Ningbo Shipping reported normal operations and no undisclosed significant information, with its rolling P/E ratio significantly higher than the industry average [8] - Liren Lizhuang stated that products containing "ergothioneine" contribute minimally to overall sales, indicating limited impact on business performance [10] Share Buyback Plans - Jianghan New Materials plans to repurchase shares worth 200 million to 400 million yuan, with a maximum price of 30 yuan per share [14]

Group 1 - The China Securities Regulatory Commission (CSRC) encourages private equity funds to participate in mergers and acquisitions of listed companies, establishing a simplified review process for the first time [1] - The CSRC has adjusted regulatory requirements for issuing shares to purchase assets and introduced a phased payment mechanism for the first time [1] - The CSRC has introduced a "reverse linkage" arrangement for private equity funds for the first time [1] Group 2 - Multiple public fund industry insiders stated that recent analyses regarding public fund assessment benchmarks leading to market adjustments are inaccurate and lack basic knowledge and evidence [2] Group 3 - The Hong Kong Hang Seng Index will include Midea Group and ZTO Express, while BYD will join the Hang Seng Tech Index, removing Reading Group [3] Group 4 - E Fund announced that renowned fund manager Zhang Kun will no longer serve as deputy general manager due to work adjustments and will focus on investment management in the future [4] Group 5 - Jinlitai's board disagreed with shareholders' proposal to convene an extraordinary general meeting [5] - 20CM's two consecutive trading limits for Toxin Pharmaceutical: Ivos will reduce its holdings by 1.3128 million shares from March 14 to May 15, 2025 [5] - Tailing Microelectronics: The National Fund's shareholding ratio has decreased to 6.95% [5] - Two consecutive trading limits for Liren Liyang: The revenue proportion of ergotamine products is very low [5] - Tunnel Holdings: The controlling shareholder plans to increase its stake in the company by 250 million to 500 million yuan [5] - CATL announced the H-share offering price set at HKD 263.00 per share [5]

白云机场公告，公司拟与中国免税品（集团）有限责任公司、广州市广百股份有限公司、广州岭南集团 控股股份有限公司共同投资设立中免市内免税品（广州）有限公司（简称"新设公司"），运营广州市市 内免税店相关业务。新设公司的注册资本为4500万元，其中，公司拟以自有资金投资450万元，占新设 公司注册资本的10%。 贵州茅台：截至目前已累计回购股份264.21万股 支付总金额40.5亿元 贵州茅台公告称，2025年5月1日-5月16日，公司累计回购股份62.46万股，占公司总股本的比例为 0.0497%，支付的金额为10.11亿元。截至2025年5月16日，公司已累计回购股份264.21万股，占公司总 股本的比例为0.2103%，已支付的总金额为40.5亿元（不含交易费用）。回购股份将用于注销并减少注 册资本。 5月16日晚间，沪深两市多家上市公司发布公告，以下是第一财经对一些重要公告的汇总，供投资者参 考。 【品大事】 白云机场：拟450万元与中免集团等共同设立免税品公司 【做回购】 江瀚新材：拟2亿元-4亿元回购股份 江瀚新材公告，公司拟通过集中竞价交易方式，用自有资金或金融机构借款以2亿元至4亿元资金回购股 份， ...