证券代码：605598 证券简称：上海港湾 公告编号：2026-004 上海港湾基础建设（集团）股份有限公司 关于回购注销限制性股票通知债权人的公告 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、通知债权人的原因 上海港湾基础建设（集团）股份有限公司（以下简称"公司"、"上海港湾"） 于 2026 年 1 月 23 日召开了第三届董事会薪酬与考核委员会第四次会议、第三届 董事会第十七次临时会议，审议通过了《关于回购注销限制性股票的议案》。根 据《上海港湾 2023 年限制性股票激励计划》及相应实施考核管理办法，因部分 激励对象离职及公司2025年度业绩未达到2023年限制性股票激励计划第三个解 除限售期的解除限售条件，导致激励对象已获授但尚未解除限售的限制性股票 156.80 万股不能解除限售，由公司回购注销，具体内容详见公司于同日披露在上 海证券交易所网站（www.sse.com.cn）和指定媒体披露的《关于回购注销限制 性股票的公告》（公告编号：2026-003）。 本次回购注销完成后公司总股本减少 1,568,00 ...

北京市中伦律师事务所 关于上海港湾基础建设（集团）股份有限公司 回购注销限制性股票的 法律意见书 | 一、激励计划及本次回购注销的批准与授权 3 | | --- | | 二、本次回购注销的具体情况 5 | | 三、结论意见 6 | 北京市中伦律师事务所 $$\mathbf{\partial}\mathbf{\partial}\mathbf{\partial}\mathbf{\partial}\mathbf{\partial}\mathbf{\partial}\mathbf{\partial}\mathbf{\partial}\mathbf{\partial}$$ 关于上海港湾基础建设（集团）股份有限公司 回购注销限制性股票的 法律意见书 致：上海港湾基础建设（集团）股份有限公司 根据上海港湾基础建设（集团）股份有限公司（以下简称"上海港湾"或"公 司"）与北京市中伦律师事务所（以下简称"本所"）签订的《专项法律服务合 同》的约定及受本所指派，本所律师作为公司 2023 年限制性股票激励计划（以 下简称"激励计划"或"本次激励计划"）相关事宜的专项法律顾问，出具本法 律意见书。 为出具本法律意见书，本所律师审阅 ...

证券代码：605598 证券简称：上海港湾 公告编号：2026-005 上海港湾基础建设（集团）股份有限公司 注：公司于 2023 年 8 月 17 日完成 2022 年年度权益分派实施工作。本次分 派以 2022 年度实施权益分派股权登记日登记的总股本（扣除公司回购专用证券 账户中的股份）为基数，向全体股东以资本公积每 10 股转增 4 股。本次转增后， 公司总股本由 175,543,467 股增加至 245,760,841 股，对应 2023 年员工持股计划 持有标的股票数量由 2,192,000 股变更为 3,068,800 股。 4、2024 年 7 月 5 日，公司召开了第三届董事会第五次临时会议，审议通过 了《关于 2023 年员工持股计划第一个锁定期届满暨解锁条件成就的议案》。 5、2025 年 4 月 28 日，公司第三届董事会第十二次会议审议通过了《关于 2023 年员工持股计划第二个解锁期解锁条件未成就的议案》。 关于回购 2023 年员工持股计划第三期未解锁股份的公告 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 ...

证券代码：605598 证券简称：上海港湾 公告编号：2026-002 具体详见公司同日披露于上海证券交易所网站（www.sse.com.cn）及指定 媒体的《上海港湾关于回购注销限制性股票的公告》（公告编号：2026-003）。 （二） 审议并通过《关于回购 2023 年员工持股计划第三期未解锁股份的 议案》 上海港湾基础建设（集团）股份有限公司 第三届董事会第十七次临时会议决议公告 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、董事会会议召开情况 上海港湾基础建设（集团）股份有限公司（以下简称"公司"、"上海港湾"） 第三届董事会第十七次临时会议于 2026 年 1 月 23 日以通讯表决的方式召开，本 次会议通知已于 2026 年 1 月 19 日以电子邮件形式发出。会议应出席董事 8 名， 实际出席董事 8 名，公司部分高级管理人员列席本次会议。本次会议的召集、召 开程序符合《公司法》和《公司章程》等的相关规定。董事长徐士龙先生主持本 次会议。 (一) 审议并通过《关于回购注销限制性股票的议案》 经审核，董事会认 ...

Group 1 - The A-share market saw a rebound in commercial aerospace stocks, with notable increases in share prices for several companies, including Deen Precision Engineering up 18% and Ruichuang Micro-Nano up over 17% [1][2] - Beijing Chuanqiu Space Technology Co., Ltd. announced that actor Huang Jingyu will join the first batch of Chinese commercial space travelers, planning to fly on the domestic reusable manned spacecraft "Chuanqiu No. 1" in 2028, with a ticket price of 3 million yuan [1] Group 2 - The stock performance of various companies in the commercial aerospace sector includes: - Deen Precision Engineering (300780) with a market cap of 4.517 billion yuan and a year-to-date increase of 59.75% [2] - Ruichuang Micro-Nano (688002) with a market cap of 55.6 billion yuan and a year-to-date increase of 19.88% [2] - Feiwo Technology (301232) with a market cap of 16.4 billion yuan and a year-to-date increase of 29.45% [2] - Other companies like Liujin Technology, Ruihua Tai, and Tianhe Energy also showed significant gains, with increases ranging from 10% to over 12% [1][2]

Core Viewpoint - The commercial aerospace sector in the A-share market is experiencing a rebound, with significant stock price increases for various companies following the announcement of China's first commercial space tourism initiative [1] Group 1: Stock Performance - Deen Precision Engineering (德恩精工) saw an increase of 18.01%, with a total market capitalization of 4.517 billion [2] - Ruichuang Micro-Nano (睿创微纳) rose by 17.59%, reaching a market cap of 55.6 billion [2] - Feiwo Technology (飞沃科技) increased by 16.28%, with a market value of 1.64 billion [2] - Other notable performers include: - Liujin Technology (流金科技) up 12.61% with a market cap of 4.002 billion [2] - Ruihua Tai (瑞华泰) up 12.41% with a market cap of 4.369 billion [2] - Trina Solar (天合光能) up 11.01% with a market cap of 46.5 billion [2] - Taili Technology (太力科技) up 10.76% with a market cap of 6.643 billion [2] - Qian Zhao Optoelectronics (乾照光电) up 10.63% with a market cap of 33.2 billion [2] - Xuanji Information (旋极信息) up 10.25% with a market cap of 11.5 billion [2] - Zhongchao Holdings (中超控股) up 10.03% with a market cap of 11.7 billion [2] - Ju Li Sockets (巨力索具) up 9.99% with a market cap of 13 billion [2] - Chunhui Intelligent Control (春晖智控) up 9.55% with a market cap of 6.104 billion [2] - Shanghai Port Bay (上海港湾) up 8.44% with a market cap of 15.9 billion [2] - Xinke Mobile (信科移动) up 8.23% with a market cap of 68.3 billion [2] - Xinwei Communication (信维通信) up 7.53% with a market cap of 84.3 billion [2] - Goldwind Technology (金风科技) up 7.36% with a market cap of 122 billion [2] - Western Materials (西部材料) up 7.10% with a market cap of 20.7 billion [2] Group 2: Space Tourism Announcement - Beijing Chuanqiu Space Technology Co., Ltd. announced the inclusion of actor Huang Jingyu in China's first commercial space travel lineup, planning to fly in 2028 aboard the domestic reusable spacecraft "Chuanqiu No. 1" [1] - The flight will last approximately 2.5 hours, crossing the Kármán line at 100 kilometers, allowing for 12 minutes of weightlessness [1] - The ticket price is set at 3 million, requiring a 10% deposit and completion of professional training [1]

Group 1 - Shanghai Port Bay's stock increased by 5.15%, reaching 59.46 CNY per share, with a trading volume of 266 million CNY and a turnover rate of 1.88%, resulting in a total market capitalization of 14.543 billion CNY [1] - Shanghai Port Bay Infrastructure (Group) Co., Ltd. was established on January 28, 2000, and listed on September 17, 2021. The company specializes in geotechnical engineering, including foundation treatment and pile foundation engineering [1] - The revenue composition of Shanghai Port Bay includes foundation treatment at 64.93%, pile foundation engineering at 19.49%, and other services at 15.58% [1] Group 2 - Yongying Fund has a significant holding in Shanghai Port Bay, with its fund "Yongying High-end Equipment Smart Selection Mixed Initiation A" (015789) holding 11.714 million shares, accounting for 8.34% of the fund's net value, making it the third-largest holding [2] - The fund has generated an estimated floating profit of approximately 34.088 million CNY today [2] - The fund was established on July 15, 2022, with a current size of 889 million CNY, and has achieved a year-to-date return of 6.74%, ranking 3342 out of 8843 in its category [2]

Group 1 - The core viewpoint is that China's commercial space industry is experiencing rapid development, with projections for 2025 indicating 50 launches, accounting for 54% of the total national space launches [1] - In 2025, commercial rockets are expected to complete 25 launches, and the Hainan commercial space launch site will have conducted 9 launches, totaling 10 since its establishment [1] - A total of 311 commercial satellites are projected to be placed into orbit, representing 84% of the total satellites launched in China [1] Group 2 - The commercial space industry is entering a golden era driven by both demand and supply, with recommendations to focus on structural component suppliers such as Aerospace Power, Srey New Materials, and others [1] - In satellite manufacturing, the focus is on low Earth orbit satellites and related infrastructure, with suggested companies including China Satellite and Aerospace Electronics [1] - The upstream and midstream sectors, particularly subsystems and materials supporting satellite mass production, are expected to benefit first, with companies like Zhenlei Technology and Guangwei Composites highlighted [1] Group 3 - In 2026, the domestic commercial space sector is anticipated to experience a "triple resonance" of policy, technology, and capital, making it highly promising [2] - Beneficiary companies in the rocket industry chain include Aerospace Power, Western Materials, and others [2] - In the satellite industry and space computing, recommended companies include Zhongke Xingtou, Aerospace Hongtu, and several others [2]

Investment Rating - The report does not explicitly state an investment rating for the industry. Core Insights - The demand for satellite internet networking is urgent, and space computing opens new growth opportunities. The construction of satellite internet networks is driven by strong demand due to the advantages of wide coverage, strong disaster resistance, and rapid deployment. The International Telecommunication Union (ITU) has established principles for satellite frequency and orbit usage, leading to a competitive race for low Earth orbit resources. The construction and launch of satellite constellations in China are accelerating, with a significant gap compared to the US [4][16]. - Space computing is leading to increased demand for satellites. The traditional model of "ground computing" is evolving to "space computing," with satellites equipped with AI chips and edge computing modules to process data in orbit, significantly reducing transmission delays and processing times. Major companies are investing in space computing infrastructure, which is expected to drive the demand for satellites [17][19]. - Solar wings are the only efficient and long-term energy supply solution for near-Earth commercial space. Solar wings account for approximately 12%-24% of the satellite's value, and their area is continuously increasing, which enhances the overall power supply capacity of satellites. The transition from rigid to flexible solar wings is a key trend, with different technological routes being adopted in China and the US [4][28][38]. Summary by Sections Satellite Internet Networking - The urgent need for satellite internet networking is driven by the rapid release of rigid application demands in communication, navigation, and remote sensing. The construction of satellite internet networks is becoming increasingly critical due to limited low Earth orbit resources and the competitive landscape [11][16]. - The ITU's "first come, first served" principle has intensified the competition for satellite orbital resources, with China lagging in the completion rate of its satellite constellations compared to the US [16][18]. Space Computing - Space computing is transforming satellite demand by embedding AI capabilities into satellite systems, allowing for in-orbit data processing and reducing the need for ground-based data transmission. This shift is expected to significantly enhance the capabilities and applications of satellites [19][22]. Solar Wings - Solar wings are essential for providing continuous power to satellites, with their value accounting for a significant portion of the satellite's overall worth. The area of solar wings is increasing, which is expected to enhance the power supply capabilities of satellites [28][30]. - The transition from rigid to flexible solar wings allows for greater power generation efficiency and is particularly suited for high-power and multi-satellite launch scenarios. The flexible solar wings can achieve a higher power-to-weight ratio and better space utilization [38][45]. Technology Routes - There are notable differences in the solar wing battery technology routes between China and the US. The US primarily uses silicon solar cells due to their lower costs and established supply chains, while China is exploring gallium arsenide cells for their higher power-to-weight ratios and efficiency [51][62]. - Gallium arsenide cells are being actively explored for cost reduction, and perovskite cells are emerging as a potential next-generation solution for solar wings due to their low cost and high efficiency [65][69].

Core Viewpoint - The strategic partnership between Dongfang Risen and Shanghai Portwan focuses on the development and application of "perovskite + p-type heterojunction battery stacking technology" in the space energy sector, aiming to respond to national aerospace strategies and seize opportunities in the rapidly growing global commercial space market [1][3]. Group 1: Industry Overview - The global commercial space industry is experiencing explosive growth, with a significant increase in satellite power demands, transitioning from hundreds of watts to tens or even hundreds of kilowatts, and total power for satellite constellations approaching gigawatt levels [3]. - The demand for high-performance, lightweight solar energy systems in space is driven by the need for cost-effective and reliable solutions, as traditional gallium arsenide batteries face challenges such as high costs and production difficulties [3]. Group 2: Company Strengths - Dongfang Risen has established itself as a leader in the renewable energy sector, with significant advancements in p-type heterojunction battery technology, including the development of a 50μm ultra-thin p-type HJT battery that offers lightweight and strong radiation resistance [4]. - Shanghai Portwan's subsidiaries are specialized in different aspects of space energy systems, with Jiangyin Jinghao leading in perovskite photovoltaic flexible components and Fuxi Xinkong focusing on lightweight, low-cost, and high-efficiency space energy systems [5]. Group 3: Collaboration Goals - The partnership aims to tackle core challenges in the development of perovskite and p-type heterojunction space-grade stacking technology, with a focus on enhancing the efficiency and adaptability of solar cells in extreme space conditions, ensuring stable operation for over 7 years [5]. - The collaboration will leverage the complementary strengths of both companies to advance the industrialization and commercialization of stacking technology, expanding diverse applications in space energy and building a mutually beneficial aerospace energy ecosystem [5]. - Both companies are committed to responding to national aerospace strategies and seizing strategic opportunities in the global commercial space development market [5].