Group 1 - The company, Sanwei Communication Co., Ltd., will participate in the "2025 Zhejiang Listed Companies Investor Collective Reception Day" to enhance interaction with investors [1] - The event will be held online on May 13, 2025, from 15:00 to 17:00, where the company's chairman, financial officer, independent directors, and board secretary will discuss the 2024 annual performance and other key topics [1] - Investors are encouraged to submit questions in advance by May 12, 2025, to facilitate efficient communication during the event [1]

为提高互动交流的效率，现提前向所有关心公司的投资者公开征集交流问题， 广泛听取投资者的意见和建议。投资者可于 2025 年 5 月 12 日（周一）17：00 前访问http://ir.p5w.net/zj/，进入问题征集专题页面，提交您所关心的问题。 公司将在活动上对投资者普遍关注的问题进行回答。 特此公告。 关于参加浙江辖区上市公司 2025 年投资者网上集体接待日活动 暨召开 2024 年度业绩说明会的公告 本公司及董事会全体成员保证信息披露内容的真实、准确和完整，没有虚假 记载、误导性陈述或重大遗漏。 为进一步加强与投资者的互动交流，三维通信股份有限公司(以下简称"公 司"）将参加由浙江证监局、浙江上市公司协会与深圳市全景网络有限公司联合 举办的"2025 年浙江辖区上市公司投资者集体接待日活动"，现将相关事项公 告如下: 本次活动将采用网络远程的方式举行，投资者可登录"全景路演"网站 (https://rs.p5w.net)，或关注微信公众号:全景财经，或下载全景路演 APP， 参与本次互动交流，活动时间为 2025 年 5 月 13 日(周二)15:00-17:00。届时公 司董事长、财务负责人、 ...

Core Insights - The satellite application industry has a complex value chain with diverse application scenarios, including satellite communication, navigation, and remote sensing [1][2] - The industry is characterized by a wide distribution of companies, with a significant concentration in Beijing, Guangdong, and Sichuan [5][7] - The industry shows a trend of diversification and specialization, providing ample growth opportunities for related companies [13] Industry Overview - The satellite application value chain consists of upstream manufacturing (satellite platforms, payloads, components), midstream applications (communication, navigation, remote sensing), and downstream sectors (transportation, defense, communication, marine, meteorology) [1][2] - Upstream players include companies like China Satellite, Galaxy Aerospace, and China Aerospace Science and Technology Corporation, while midstream service providers include China Satcom and 4D Map [2][13] Regional Distribution - As of March 18, 2025, there are 3,809 companies in China's satellite application sector, with Guangdong having approximately 457 companies, followed by Beijing with 435, and Jiangsu with 321 [5][7] - The majority of satellite application companies are located in the eastern and central regions of China, with Sichuan and Shaanxi also hosting over 150 companies [5] Company Landscape - Among the 40 listed companies in the satellite application sector, Beijing has the highest concentration with 13 companies, including China Satellite and China Satcom [7] - The industry is marked by a higher number of companies in the navigation and positioning sector, while the remote sensing sector has fewer players but higher technical barriers [13][14] Value Chain Layout - The satellite application industry encompasses various fields such as navigation & positioning, remote sensing & surveying, and communication & information transmission, with a strong presence of companies in upstream equipment production and system integration [13][14] - The midstream and downstream applications are diverse, covering multiple industries like transportation, logistics, and communication, indicating significant market potential [13]

Core Viewpoint - The development of China's BeiDou Navigation System has reached a significant milestone with the successful launch of the last two satellites, marking the completion of the BeiDou-3 global satellite navigation system project. The focus will now shift towards the next generation of the BeiDou system and the establishment of a comprehensive spatiotemporal system by 2035 [1][4]. Group 1: BeiDou Satellite Development - The BeiDou Navigation System, developed by the China National Space Administration and China Aerospace Science and Technology Corporation, provides global navigation, positioning, and timing services [1]. - As of the end of 2024, China has conducted 47 launches, placing a total of 60 satellites into orbit, with 50 currently operational and 10 retired [4]. Group 2: BeiDou Industry Index Growth - The 2024 China BeiDou Industry Development Index Report indicates that the comprehensive index reached 1431 points in the first half of 2024, reflecting a growth of over 470% since 2013, over 19% since 2021, and over 9% since the first half of 2023 [5][8]. Group 3: Application Penetration in Various Fields - The demand for BeiDou applications has significantly increased due to the digital transformation across various sectors, with over 27 million BeiDou terminal devices (excluding consumer electronics) in use as of mid-2024, marking a year-on-year increase of 17.4% [9]. - Over 98% of the 139 million smartphones shipped in the first half of 2024 support BeiDou positioning, indicating its integration into consumer products [9]. Group 4: Regional Development Concentration - The development of the BeiDou industry is concentrated in five key regions: Beijing-Tianjin-Hebei, Guangdong, the Yangtze River Delta, the western region centered around Chengdu and Chongqing, and the Central China region including Zhengzhou, Wuhan, and Changsha, with Beijing-Tianjin-Hebei and Guangdong being the most prominent [10].

Core Viewpoint - The company, Sanwei Communication, reported a revenue of 10.949 billion yuan for the year 2024, demonstrating resilience amid a complex global economic landscape and industry challenges [1] Group 1: Satellite Communication Business - The satellite communication business achieved significant growth, with revenue reaching 173 million yuan, a year-on-year increase of 13.91%, driven by continuous innovation [2] - The subsidiary, Haiwei Tong, is recognized as the first professional international satellite operator serving maritime terminal customers in China, with over 3,000 vessels' operational experience [2] - Haiwei Tong provides comprehensive satellite broadband access and vertical application services, addressing network coverage challenges in marine, remote, and overseas construction scenarios [2] Group 2: Strategic Partnerships and Product Innovation - In 2024, Haiwei Tong deepened strategic partnerships with global satellite operators, enhancing its satellite network resources and advancing the commercialization of integrated satellite communication services [3] - The launch of the Sea Cube platform, designed for smart ocean applications, incorporates innovative features such as cloud integration and digital security, enhancing vessel intelligence and operational efficiency [3] Group 3: Ecosystem Development - Haiwei Tong is promoting deep integration of industry, academia, and research, collaborating with various enterprises and universities to explore development paths aligned with national marine strategies [4] - The company upgraded its internal digital management system, improving operational efficiency and compliance levels, laying a solid foundation for a new global smart ocean service ecosystem [4] Group 4: Tower Operations and Financial Performance - The subsidiary, Xinzhan Technology, reported a revenue of 160.4949 million yuan in 2024, reflecting a 47.67% year-on-year growth, with nearly 10,000 existing sites [5] - The company is enhancing its operational capabilities through professional management and cost optimization, achieving a cumulative bidding amount of 430 million yuan in equipment business [5] Group 5: Security Communication Products - The company expanded its security communication product range, signing contracts with multiple benchmark clients and establishing a provincial-level demonstration project [6] - Participation in various international and domestic security product expos has strengthened the company's brand influence and market competitiveness in communication security [6] Group 6: Future Outlook - The company remains optimistic about opportunities arising from 5G development, planning to actively participate in operator procurement markets and collaborate on core projects in satellite communication and 5G infrastructure [7] - As global 5G construction progresses, the company aims to address the "last mile" network coverage issues, creating substantial growth opportunities [7]

Core Viewpoint - The company emphasizes the accuracy and completeness of its quarterly report, ensuring no false records or misleading statements are present [2][3]. Financial Data - The quarterly report has not been audited [3][7]. - The company does not require retrospective adjustments or restatements of previous accounting data [3]. - There are no non-recurring profit and loss items applicable for this quarter [3]. Shareholder Information - The total number of ordinary shareholders is not specified, but the company has repurchased 5,954,000 shares, accounting for 0.73% of the total issued share capital [5].

Group 1 - Jinchengxin signed a mining production contract with Western Mining for approximately 377 million yuan [1] - Weishinkang's subsidiary received a drug registration certificate for compound amino acid injection (18AA-Ⅸ) [1] - Kangyuan Pharmaceutical obtained a drug registration certificate for Yunu Jian granules [2] Group 2 - Zongheng Communication reported a net profit of 3.42 million yuan in Q1 2025, turning from loss to profit [3] - Phoenix Holdings achieved a net profit of 1.39 million yuan in Q1 2025, also turning from loss to profit [3] - Dayuan Pump Industry reported a net profit of 39.21 million yuan in Q1 2025, a decrease of 3.95% year-on-year [5] Group 3 - Shuo Beid reported a net profit of 14.53 million yuan in Q1 2025, an increase of 276.05% year-on-year [7] - Tongde Chemical reported a net profit of 10.31 million yuan in Q1 2025, a decrease of 51.51% year-on-year [8] - Vanadium Titanium Co. reported a net loss of 98 million yuan in Q1 2025, a decline of 40.84% in revenue [9] Group 4 - Xineng Taishan reported a net profit of 16.23 million yuan in Q1 2025, turning from loss to profit [10] - Andavil reported a net profit of 13.83 million yuan in 2024, a decrease of 87.82% year-on-year [12] - Xingyuan Environment reported a net loss of 302 million yuan in 2024, a reduction in loss by 69.46% [14] Group 5 - China Rare Earth reported a net loss of 287 million yuan in 2024, turning from profit to loss [15] - Zhejiang Huaye reported a net profit of 92.94 million yuan in 2024, an increase of 32.21% year-on-year [16] - Mengjie Co. reported a net profit of 24.88 million yuan in 2024, an increase of 10.99% year-on-year [18] Group 6 - Tongde Chemical reported a net loss of 71.99 million yuan in 2024, turning from profit to loss [19] - Rongsheng Development reported a net loss of 8.44 billion yuan in 2024, turning from profit to loss [21] - Sanwei Communication reported a net loss of 27.1 million yuan in 2024, turning from profit to loss [22] Group 7 - Wankang Technology reported a net loss of 16.3 million yuan in 2024, turning from profit to loss [24] - Huitian New Materials reported a net profit of 1.02 billion yuan in 2024, a decrease of 65.91% year-on-year [25] - Luzhou Laojiao reported a net profit of 13.47 billion yuan in 2024, an increase of 1.71% year-on-year [27] Group 8 - Haiyuan Composite reported a net loss of 16 million yuan in 2024 [29] - Hongchuan Wisdom reported a net profit of 15.8 million yuan in 2024, a decrease of 46.57% year-on-year [30] - Gree Electric reported a net profit of 32.18 billion yuan in 2024, an increase of 10.91% year-on-year [30]

一、内部控制审计报告…………………………………………第 1—2 页 按照《企业内部控制审计指引》及中国注册会计师执业准则的相关要求，我 们审计了三维通信股份有限公司（以下简称三维通信公司）2024 年 12 月 31 日 的财务报告内部控制的有效性。 一、企业对内部控制的责任 按照《企业内部控制基本规范》《企业内部控制应用指引》以及《企业内部 控制评价指引》的规定，建立健全和有效实施内部控制，并评价其有效性是三维 通信公司董事会的责任。 二、注册会计师的责任 目 录 内部控制审计报告 天健审〔2025〕7977 号 三维通信股份有限公司全体股东： 四、财务报告内部控制审计意见 我们认为，三维通信公司于 2024 年 12 月 31 日按照《企业内部控制基本规 第 1 页 共 2 页 范》和相关规定在所有重大方面保持了有效的财务报告内部控制。 天健会计师事务所（特殊普通合伙） 中国注册会计师： 中国·杭州 中国注册会计师： 二〇二五年四月二十四日 第 2 页 共 2 页 我们的责任是在实施审计工作的基础上，对财务报告内部控制的有效性发表 审计意见，并对注意到的非财务报告内部控制的重大缺陷进行披露。 三、内部控制 ...

目 录 | 二、财务报表……………………………………………………… 第 | 8—15 | 页 | | --- | --- | --- | | （一）合并资产负债表…………………………………………… | 第 8 | 页 | | （二）母公司资产负债表………………………………………… | 第 9 | 页 | | （三）合并利润表…………………………………………………第 | 10 页 | | --- | --- | | （四）母公司利润表………………………………………………第 | 11 页 | | | | 一、审计报告……………………………………………………… 第 1—7 页 （五）合并现金流量表……………………………………………第 12 页 （六）母公司现金流量表…………………………………………第 13 页 （七）合并所有者权益变动表……………………………………第 14 页 （八）母公司所有者权益变动表…………………………………第 15 页 审 计 报 告 天健审〔2025〕7976 号 三维通信股份有限公司全体股东： 一、审计意见 我们审计了三维通信股份有限公司（以下简称三维通信公司）财务报表，包 括 2024 ...

浙商证券股份有限公司 关于三维通信股份有限公司 2024 年度募集资金存放与实际使用情况的专项核查意见 浙商证券股份有限公司（以下简称"浙商证券"或"保荐机构"）作为三维 通信股份有限公司（以下简称"三维通信"或"公司"）2020 年非公开发行 A 股股票的保荐机构，根据《证券发行上市保荐业务管理办法》、《上市公司监 管指引第 2 号——上市公司募集资金管理和使用的监管要求》、《深圳证券交 易所上市公司自律监管指引第 13 号——保荐业务》及《深圳证券交易所上市 公司自律监管指引第 1 号——主板上市公司规范运作》等相关法规和规范性文 件的规定，对三维通信 2024 年度募集资金存放与实际使用情况进行了审慎核 查，发表如下意见： 一、募集资金基本情况 1、实际募集资金金额和资金到账时间 经中国证券监督管理委员会证监许可〔2020〕3312 号文核准，并经深圳证 券交易所同意，公司由主承销商浙商证券、联席主承销商天风证券股份有限公 司向特定对象非公开发行人民币普通股（A 股）股票 101,695,646 股，发行价 为每股人民币 4.60 元，共计募集资金 467,799,971.60 元，坐扣承销和保荐费用 ...