青岛鼎信通讯股份有限公司 重大信息内部报告和保密制度 2025 年 8 月 1 第一章 总则 第一条、为了进一步规范青岛鼎信通讯股份有限公司（以下简称"公司"） 的重大信息内部报告工作，保证公司内部重大信息得到有效传递和审核控制，并 及时、准确、全面、完整地披露信息，维护投资者的合法权益，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》（以 下简称《股票上市规则》）《上市公司信息披露管理办法》等法律法规以及《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，结合公司实 际情况，制定本制度。 第二条、本制度所指"重大信息"是指所有公司在生产经营活动中发生或将 要发生会影响社会公众投资者投资取向，或对公司股票及衍生品种的交易价格已 经或可能产生较大影响的尚未公开的信息，包括但不限于重大事项信息、交易信 息、关联交易信息、重大经营管理信息及其他重大事项信息等。 第三条、公司信息报告义务人及具有保密义务的人员包括但不限于以下人员： （二）公司董事、高级管理人员、各部门负责人； （三）各控股子公司负责人、公司派驻参股子公司的董事和高级管理人员； （四）公司及控股子公 ...

青岛鼎信通讯股份有限公司2025 年半年度报告 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 2025 年半年度报告 2025 年 8 月 25 日 1 / 148 青岛鼎信通讯股份有限公司2025 年半年度报告 重要提示 一、 本公司董事会、监事会及董事、监事、高级管理人员保证半年度报告内容的真实性、准确 性、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。 二、 公司全体董事出席董事会会议。 三、 本半年度报告未经审计。 四、 公司负责人曾繁忆、主管会计工作负责人陈萍及会计机构负责人（会计主管人员）陈萍声 明：保证半年度报告中财务报告的真实、准确、完整。 五、 董事会决议通过的本报告期利润分配预案或公积金转增股本预案 无 六、 前瞻性陈述的风险声明 √适用 □不适用 本报告包含公司对未来发展战略、业务发展、经营计划、财务状况等的前瞻性陈述。这些陈 述乃基于当前能够掌握的信息与数据对未来所做出的估计或预测，不构成公司对投资者的实质承 诺，敬请投资者注意投资风险。 七、 是否存在被控股股东及其他关联方非经营性占用资金情况 否 八、 是否存在违反规定决策程序对外 ...

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 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 18 次、自律监管措施 2 次、纪律处分 1 次。48 名从业人员因执业行为受到刑事 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。 ...

证券代码：603421 证券简称：鼎信通讯 公告编号：2025-042 青岛鼎信通讯股份有限公司 关于出售全资子公司股权的进展公告 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、交易概述 为优化公司资产结构及资源配置，提高公司资产运营效率、降低管理成本、 补充流动资金，公司于 2025 年 7 月 21 日召开了第五届董事会第十二次会议，审 议通过了《关于出售全资子公司股权的议案》。公司将持有的全资子公司青岛海 纳数智传媒科技有限公司 100%的股权作价人民币 24,000 万元转让给青岛同创惠 泰产业投资有限公司（以下简称"同创惠泰"），具体内容详见公司于 2025 年 7 月 23 日在上海证券交易所网站（www.sse.com.cn）披露的《鼎信通讯关于出 售全资子公司股权的公告》（公告编号：2025-039）。 二、股权转让的进展情况 截至 2025 年 8 月 1 日公司已收到第一期和第二期股权转让款共计 14,550 万元，第一期转让款 2,400 万元已全部到账，第二期转让款 14,400 万元已到账 12 ...

Market Overview - On August 13, the communication equipment sector rose by 6.06% compared to the previous trading day, with Guangku Technology leading the gains [1] - The Shanghai Composite Index closed at 3683.46, up 0.48%, while the Shenzhen Component Index closed at 11551.36, up 1.76% [1] Top Gainers in Communication Equipment Sector - Guangku Technology (300620) closed at 79.30, up 20.01% with a trading volume of 281,600 shares and a transaction value of 2.204 billion [1] - Xinyi Technology (300502) closed at 236.56, up 15.45% with a trading volume of 601,100 shares and a transaction value of 13.529 billion [1] - Dingtong Technology (688668) closed at 115.36, up 13.10% with a trading volume of 111,200 shares [1] - Other notable gainers include Zhongji Xuchuang (300308) up 11.66%, Jiexun Feihong (300213) up 10.79%, and Tefa Information (000070) up 10.02% [1] Market Capital Flow - The communication equipment sector saw a net inflow of 2.48 billion from institutional investors, while retail investors experienced a net outflow of 6.38 billion [2] - The top stocks by net inflow from institutional investors include Tianfu Communication (300394) with a net inflow of 619 million, and ZTE Corporation (000063) with a net inflow of 313 million [3] Underperformers in Communication Equipment Sector - Dayhai Intelligent (002313) closed at 12.81, down 5.67% with a trading volume of 907,500 shares and a transaction value of 1.187 billion [2] - ST Gaohong (000851) closed at 1.90, down 5.00% with a trading volume of 13,900 shares [2] - Other underperformers include Cheng Tian Wei Ye (300689) down 4.73% and ST Lu Tong (300555) down 1.67% [2]

证券时报·数据宝统计，截至发稿，鼎信通讯收盘价为7.06元，上涨0.14%，筹码持续集中以来股价累计 下跌0.98%。具体到各交易日，15次上涨，8次下跌。 融资融券数据显示，该股最新（8月11日）两融余额为1.89亿元，其中，融资余额为1.89亿元，股东户数 连降以来融资余额合计减少0.30亿元，降幅为13.57%。（数据宝） （文章来源：证券时报网） 鼎信通讯8月12日披露，截至8月10日公司股东户数为27544户，较上期（7月31日）减少803户，环比降 幅为2.83%。这已是该公司股东户数连续第3期下降，累计降幅达9.47%，也就是说筹码呈持续集中趋 势。 ...

Core Viewpoint - Private enterprises are crucial for technological innovation, and they face challenges in obtaining rapid intellectual property protection for their innovations [1][2] Group 1: Company Overview - Qingdao Dingxin Communication Co., Ltd. is a high-tech enterprise specializing in power products, having developed a safe electrochemical energy storage device over two years [1] - The company has invested over 50 million in the development of this energy storage device, which boasts a lifespan of up to 25 years and is designed to be fireproof and explosion-proof [1] Group 2: Patent Application Challenges - The company requires a rapid patent authorization mechanism due to the complexity of its technology and the competitive industry landscape [1] - In the current year, the company submitted over 80 rapid patent pre-examination applications, with less than half passing the pre-examination due to the quality of the application documents [1][2] Group 3: Support from Intellectual Property Center - The Shandong Provincial National Intellectual Property Protection Center has implemented a "1+3+N" service model to assist key private enterprises, providing pre-examination guidance and support from various experts [1][2] - The pre-examination team identified and helped rectify formal and substantive defects in the patent applications, significantly reducing the preparation time and workload for the company [2] Group 4: Results and Impact - The time for patent pre-examination at the protection center has been reduced from 7 working days to 4, streamlining the process for companies [2] - Within three months, the core patents for the company's new products were authorized, allowing the innovations to be protected and ready for market launch [2][3]

Market Overview - The Shanghai Composite Index closed at 3602.13 points, with a gain of 0.53% [1] - The total trading volume of A-shares reached 10185.93 billion yuan [1] Technical Analysis - A total of 29 A-shares experienced a death cross between the 5-day and 10-day moving averages today [1] - Notable stocks with significant distance between their 5-day and 10-day moving averages include: - Xiongdi Technology: 5-day MA down by 1.70% from the 10-day MA [1] - Sanwei Xinan: 5-day MA down by 1.11% from the 10-day MA [1] - Jinling Sports: 5-day MA down by 1.10% from the 10-day MA [1] Individual Stock Performance - Xiongdi Technology (300546): Today's change -0.23%, latest price 26.47 yuan, 5-day MA 27.31 yuan, 10-day MA 27.78 yuan [1] - Sanwei Xinan (688489): Today's change -0.80%, latest price 39.85 yuan, 5-day MA 40.62 yuan, 10-day MA 41.08 yuan [1] - Jinling Sports (300651): Today's change +0.89%, latest price 21.48 yuan, 5-day MA 23.82 yuan, 10-day MA 24.09 yuan [1] - Other notable stocks include: - Huanrui Century (000892): Today's change -0.86%, latest price 4.59 yuan [1] - Junshi Biological (688180): Today's change +0.45%, latest price 37.83 yuan [1] - Yihau New Materials (301176): Today's change -1.64%, latest price 30.65 yuan [1] Additional Stock Data - Other stocks with notable performance include: - Guanghe Technology (001389): Today's change -2.81%, latest price 62.20 yuan [1] - Kehua Data (002335): Today's change -2.13%, latest price 41.44 yuan [1] - ST Ruihe (002620): Today's change +0.26%, latest price 3.84 yuan [1] - The performance of these stocks indicates a mixed sentiment in the market, with some stocks showing declines while others remain stable or increase slightly [1][2]

Market Overview - The Shanghai Composite Index is at 3568.16 points, with a change of 0.23% [1] - The total trading volume of A-shares is 697.23 billion yuan [1] Technical Analysis - 49 A-shares have seen their 5-day moving average cross below the 10-day moving average [1] - Notable stocks with significant distance between their 5-day and 10-day moving averages include: - Sifang Precision (300468) at -1.60% - Langxin Group (300682) at -0.99% - Zhongyou Capital (000617) at -0.91% [1] Individual Stock Performance - Sifang Precision (300468): Today's change is -1.11%, with a latest price of 37.52 yuan, which is -8.04% from the 10-day moving average [1] - Langxin Group (300682): Today's change is -1.88%, with a latest price of 19.29 yuan, which is -6.20% from the 10-day moving average [1] - Zhongyou Capital (000617): Today's change is -2.05%, with a latest price of 8.59 yuan, which is -4.96% from the 10-day moving average [1] - Other stocks with notable performance include: - China Reinsurance (601319): +0.12%, latest price 8.17 yuan, -2.73% from the 10-day moving average [1] - Haosen Intelligent (688529): +0.76%, latest price 19.97 yuan, -0.99% from the 10-day moving average [1] - Huangtai Liquor (000995): -1.52%, latest price 14.29 yuan, -3.99% from the 10-day moving average [1]

Group 1 - The company is selling 100% equity of its wholly-owned subsidiary, Qingdao Haina Shuzhi Media Technology Co., Ltd., for a total consideration of RMB 240 million to Qingdao Tongchuang Huitai Industrial Investment Co., Ltd. [1] - The board of directors approved the sale on July 21, 2025, to optimize asset structure, improve operational efficiency, reduce management costs, and supplement working capital [1][2] - The company has received a total of RMB 145.5 million from the first and second phases of the equity transfer payment, with RMB 24 million received in the first phase and RMB 12.15 million received in the second phase [1] Group 2 - The remaining payment of RMB 22.5 million is expected to be completed by August 20, 2025 [1] - The company will continue to monitor the progress of the transaction and ensure that the counterparty fulfills its obligations [2]