Group 1 - The company, Qingdao Dingshin Communication Co., Ltd., is holding its second extraordinary general meeting of shareholders in 2025 on September 11, 2025, at 13:30 [1][2] - The meeting will take place at the company's office located at No. 858, Huaguang Road, Building 4, B Section, Qingdao High-tech Zone [1] - Shareholders can vote through the Shanghai Stock Exchange's online voting system, with voting available from 9:15 to 15:00 on the day of the meeting [1][2] Group 2 - The meeting will not involve public solicitation of shareholder voting rights [2] - The agenda for the meeting includes non-cumulative voting proposals that have been approved by the company's board and supervisory board in previous meetings [2][3] - There are no related shareholders that need to abstain from voting [2] Group 3 - Shareholders must register to attend the meeting, with registration available from September 9, 2025, from 9:00 to 11:30 and 14:00 to 17:00 [5] - Required documents for registration include valid identification and proof of shareholding [4][5] - The company will cover no expenses for attendees, who must bear their own travel and accommodation costs [5]

Core Viewpoint - The company establishes a management system for entrusted financial management to enhance fund operation efficiency, effectively prevent investment risks, and protect the interests of the company and its shareholders [1]. Group 1: Regulations and Principles - The entrusted financial management is defined as the act of entrusting qualified financial institutions to invest and manage the company's assets under the premise of national policy allowance and effective risk control [1][2]. - The company must adhere to principles of "standard operation, risk prevention, and cautious investment," ensuring that entrusted financial management does not affect normal operations and main business development [2]. - Funds for entrusted financial management must come from idle funds and should not encroach on normal operational and project construction funds [2]. Group 2: Investment Guidelines - The company should reasonably determine the financial products, scale, and duration based on its risk tolerance, primarily investing in low-risk, short-term financial products with high safety and liquidity [2]. - Investments in entrusted financial products must not be used for stocks, derivatives, or securities investment funds [2]. - The entrusted financial management must be conducted with qualified financial institutions that have good credit and financial status, and a written contract must be signed to clarify rights, obligations, and legal responsibilities [2][3]. Group 3: Financial Management and Reporting - The financial department is responsible for the specific execution of entrusted financial management, including assessing financial conditions, preparing financial plans, and ensuring proper documentation [3][4]. - A monthly reporting system is established for the financial department to report the status of entrusted financial management to the management, audit department, and investor relations department [4]. - The audit department will supervise and regularly audit the progress, profit and loss, risk control, and fund usage of entrusted financial products [4][5]. Group 4: Disclosure and Compliance - The company must disclose entrusted financial management matters that meet disclosure standards according to relevant laws and regulations [5][6]. - In case of significant events affecting the entrusted financial products, the financial department must report to the financial director and board secretary, and the company should disclose relevant progress and response measures [5]. - The company is prohibited from using entrusted financial management to circumvent necessary approval procedures and disclosure obligations for asset purchases or external investments [6].

Meeting Overview - The fifth meeting of the board of directors of Qingdao Dingxin Communication Co., Ltd. was held on August 15, 2025, with all directors present, ensuring compliance with the Company Law and Articles of Association [1][2] Resolutions Passed - The board approved the 2025 semi-annual report and its summary, with a unanimous vote of 8 in favor, 0 against, and 0 abstentions [1][2] - The board approved amendments to certain corporate governance systems, which will be submitted for approval at the 2025 second extraordinary general meeting of shareholders, also with a unanimous vote of 8 in favor, 0 against, and 0 abstentions [1][2] - The board approved the reappointment of the accounting firm, which will also be submitted for approval at the upcoming extraordinary general meeting, with a unanimous vote of 8 in favor, 0 against, and 0 abstentions [1][2] Documentation - The full text of the revised corporate governance systems and the semi-annual report can be found on the Shanghai Stock Exchange website [1][2]

证券代码：603421 证券简称：鼎信通讯 公告编号：2025-045 青岛鼎信通讯股份有限公司 关于续聘会计师事务所的公告 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： ●拟续聘的会计师事务所名称：中兴华会计师事务所（特殊普通合伙） （以下 简称"中兴华"） 青岛鼎信通讯股份有限公司（以下简称"公司"）于 2025 年 8 月 25 日召开 第五届董事会第十三次会议，审议通过了《关于续聘会计师事务所的议案》，拟 聘任中兴华为公司 2025 年度财务审计机构和内部控制审计机构。具体情况如下： 一、拟聘任会计师事务所的基本情况 中兴华计提职业风险基金 10,450 万元，购买的职业保险累计赔偿限额 近三年中兴华因执业行为受到刑事处罚 0 次、行政处罚 4 次、行政监管措施 处罚 0 次、行政处罚 14 人次、行政监管措施 41 人次、自律监管措施 2 人次、纪 律处分 2 人次。 根据相关法律法规的规定，前述行政处罚、行政措施和自律监管措施及纪律 处分不影响中兴华承接或执行证券服务业务和其他业务。 （二）项目成 ...

Core Points - The company has established a financial assistance management system to regulate its external financial assistance activities, mitigate financial risks, and enhance information disclosure quality [1] - The system outlines the principles of equality, voluntariness, and fairness in providing financial assistance [3] - Financial assistance must be approved by the finance department and the board of directors, with timely information disclosure obligations [1][3] Summary by Sections Financial Assistance Definition and Exclusions - Financial assistance includes paid or unpaid funding and entrusted loans, excluding certain situations such as when the company’s main business is providing loans or when the recipient is a controlling subsidiary [1][2] Board of Directors' Responsibilities - Before approving financial assistance, the board must understand the recipient's operational and financial status and assess compliance, reasonableness, repayment ability, and effectiveness of guarantees [2][3] - Financial assistance to related parties is generally prohibited unless specific conditions are met, requiring shareholder meeting approval [2][3] Approval Process - Financial assistance requires approval from more than half of non-related directors and must be submitted to the shareholders' meeting if fewer than three non-related directors are present [3] - Certain financial assistance scenarios, such as high debt ratios or significant amounts, require additional shareholder approval [3][4] Agreements and Disclosure - Agreements must be signed detailing conditions, amounts, terms, and liabilities related to financial assistance [4] - The company must disclose reasons for overdue financial assistance and any remedial measures taken [4][5] Monitoring and Compliance - The finance department is responsible for monitoring the recipient's financial health and must report any significant changes or risks to the board [6][7] - Internal audit departments will oversee compliance with the financial assistance regulations [7] Legal and Regulatory Framework - The financial assistance management system is subject to national laws and regulations, and any inconsistencies will defer to those legal standards [7]

动关系。 表决权恢复的优先股股东 | 青岛鼎信通讯股份有限公司2025 | | | 年半年度报告摘要 | | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 公司代码：603421 | | | 公司简称：鼎信通讯 | | | | | | | | | | | | 青岛鼎信通讯股份有限公司 | | | | | | | | | | | | | | | 青岛鼎信通讯股份有限公司2025 | | 年半年度报告摘要 | | | | | | | | | | | | | 第一节 | 重要提示 | | | | | | | | | | | | | | 展规划，投资者应当到 www.sse.com.cn | | 网站仔细阅读半年度报告全文。 | | | | | | | | | | | | | 完整性，不存在虚假记载、误导性陈述或重大遗漏，并承担个别和连带的法律责任。 | | | | | | | | | | | | | | | 无 | | | | | | | | | | ...

General Principles - The company establishes a management system for the shares held by its directors and senior management to strengthen oversight based on relevant laws and regulations [1][2] - This system applies to the management of shares held and traded by the company's directors and senior management [1] Information Reporting and Disclosure - Directors and senior management must report personal information to the company within specified timeframes, including changes in their personal information and shareholdings [2][3] - The company is responsible for ensuring the accuracy and timeliness of the reported data and must disclose trading activities of its directors and senior management [2][3] Shareholding and Trading Restrictions - Directors and senior management are prohibited from transferring shares under certain conditions, including within six months of leaving the company or during investigations [8][9] - There are specific limits on the percentage of shares that can be transferred annually, with a maximum of 25% of their total holdings [5][9] Trading Procedures - Directors and senior management must notify the company in writing of their trading plans at least two trading days in advance for purchases and fifteen trading days for sales [4][5] - Any trading activity must be reported to the stock exchange within two trading days of the transaction [4][5] Violations and Penalties - The company will impose penalties on directors and senior management for violations of trading regulations, which may include warnings, demotions, or legal actions [12][13] - Any profits gained from illegal trading activities must be returned to the company, and the company must disclose the details of such violations [12][13]

青岛鼎信通讯股份有限公司 年报信息披露重大差错责任追究制度 第一章 总 则 第一条 为提高青岛鼎信通讯股份有限公司（以下简称"公司"）规范运作 水平，增强信息披露的真实性、准确性、完整性和及时性，提高年报信息披露的 质量和透明度，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》）《上市公司信息披露管理办法》《上 海证券交易所股票上市规则》《上海证券交易所上市公司自律监管指引第 1 号 （三）责任与权利相对等； （四）追究责任与改进工作相结合。 ——规范运作》等法律、法规、规范性文件以及《公司章程》的规定，结合公司 实际，制定本制度。 第五条 本制度遵循的原则： （一）实事求是、客观公正、有错必究； （二）过错与责任相适应； 第六条 公司财务负责人、会计机构负责人、财务会计人员、各部门负责人 及其他相关人员应当严格执行《企业会计准则》及相关规定，严格遵守公司与财 务报告相关的各项内部控制制度，确保财务报告真实、公允地反映公司的财务状 况、经营成果和现金流量。 公司有关人员不得干扰、阻碍审计机构及相关注册会计师独立、客观地进行 年报审计工作。 第二条 本制度所指责任 ...

青岛鼎信通讯股份有限公司 第一条 为加强青岛鼎信通讯股份有限公司（以下简称"公司"）与投资者 和潜在投资者（以下统称"投资者"）之间的有效沟通，完善公司治理结构，切 实保护投资者特别是中小投资者的合法权益，根据《中华人民共和国公司法》 《中 华人民共和国证券法》《上海证券交易所股票上市规则》《上海证券交易所上市 公司自律监管指引第 1 号——规范运作》《上市公司投资者关系管理工作指引》 等有关法律、法规，及《公司章程》规定，结合公司的实际情况，制定本制度。 第二条 投资者关系管理是指公司通过便利股东权利行使、信息披露、互动 交流和诉求处理等工作，加强与投资者之间的沟通，增进投资者对公司的了解和 认同，以提升公司治理水平和企业整体价值，实现尊重投资者、回报投资者、保 护投资者目的的相关活动。 第三条 投资者关系管理的基本原则是： （一）合规性原则。公司投资者关系管理应当在依法履行信息披露义务的基 础上开展，符合法律、法规、规章及规范性文件、行业规范和自律规则、公司内 部规章制度，以及行业普遍遵守的道德规范和行为准则。 （二）平等性原则。公司开展投资者关系管理活动，应当平等对待所有投资 者，尤其为中小投资者参与活 ...

青岛鼎信通讯股份有限公司 子公司管理制度 第一章 总则 第一条 为加强对青岛鼎信通讯股份有限公司（以下简称"公司"）子公司 的管理控制，有效控制经营风险，保护投资者合法权益，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》《上海证券交易所 股票上市规则》等法律、行政法规、部门规章、规范性文件及《青岛鼎信通讯股 份有限公司章程》（以下简称《公司章程》）的有关规定，结合公司的实际情况， 制定本制度。 第二条 本制度所称子公司指公司持有其 50%以上的股份，或者能够决定其 董事会半数以上成员的当选，或者通过协议或其他安排能够实际控制的公司。 对公司子公司的下属分公司、办事处等分支机构的管理控制，比照本制度的 相关规定执行。 第三条 加强对子公司的管理，旨在建立有效的控制机制，对公司的组织、 资源、资产、投资等和公司的运作进行风险控制，提高公司整体运作效率和抗风 险能力。 第四条 公司依据对子公司资产控制和上市公司规范运作要求，通过向子公 司委派或推荐董事、监事及高级管理人员和日常监管两条途径行使股东权利，并 且对子公司主要从人事、财务、经营决策、信息、内控制度、审计监督与考核等 方面进行 ...