证券代码：603421 证券简称：鼎信通讯 公告编号：2025-060 青岛鼎信通讯股份有限公司 关于实际控制人解除一致行动协议暨实际控制人变更及权 益变动的提示性公告 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： 本次权益变动不涉及股份数量变动，系青岛鼎信通讯股份有限公司（以 下简称"鼎信通讯"或"公司"）控股股东、实际控制人曾繁忆先生和王建华先 生解除《一致行动协议》。 《一致行动协议》解除后，相关股东直接控制的公司股份数量和比例保 持不变，曾繁忆先生直接持有公司 176,189,440 股股份，占公司总股本比例为 27.02%；王建华先生直接持有公司 91,574,884 股股份，占公司总股本比例为 14.04%；相关股份将不再合并计算。 《一致行动协议》解除后，公司实际控制人将由曾繁忆先生和王建华先 生变更为曾繁忆先生一人。 曾繁忆先生和王建华先生承诺，自解除一致行动协议之日起，双方将继 续严格遵守《上市公司股东减持股份管理暂行办法》《上海证券交易所上市公司 自律监管指引第 15 号——股东及董事、高 ...

格隆汇11月14日丨鼎信通讯(603421.SH)公布，公司控股股东、实际控制人曾繁忆先生和王建华先生解 除《一致行动协议》。《一致行动协议》解除后，相关股东直接控制的公司股份数量和比例保持不变， 曾繁忆先生直接持有公司176,189,440股股份，占公司总股本比例为27.02%；王建华先生直接持有公司 91,574,884股股份，占公司总股本比例为14.04%；相关股份将不再合并计算。《一致行动协议》解除 后，公司实际控制人将由曾繁忆先生和王建华先生变更为曾繁忆先生一人。 ...

Group 1 - Yuan Cheng Co., Ltd. (元成股份) has received a regulatory notice regarding the termination of its listing due to its stock market value being below 500 million yuan for 20 consecutive trading days as of November 10, 2025 [1] - The Shanghai Stock Exchange will review the termination of the company's stock listing after the company completes its hearing and defense process within 15 trading days [1] - The company is currently facing investor claims, with a legal team continuing to accept additional claims from other investors [1] Group 2 - Lawyer Xu Feng indicates that investors who purchased Yuan Cheng shares between April 15, 2021, and January 31, 2024, and sold or held the shares after January 31, 2024, may initiate claims [2] - Xu Feng's team is also handling claims related to Dingxin Communications (鼎信通讯), which has recently won a final judgment in a false statement lawsuit [2] - Dingxin Communications failed to timely disclose significant changes in external conditions affecting its operations, which is a violation of securities law [2][3] Group 3 - Dingxin Communications also did not disclose the disposal of shares by its controlling shareholder and actual controller in a timely manner [3] - Xu Feng suggests that investors who bought Dingxin Communications shares between March 1, 2024, and March 30, 2024, and sold or held the shares after March 30, 2024, can still initiate claims [4] Group 4 - Yuan Cheng Co., Ltd. has been found to have false records in its annual reports from 2020 to 2022, including inflating project costs and revenues [5] - The company failed to account for discrepancies in the Huaiyin project in a timely manner, leading to inflated revenues and profits in its 2022 annual report [5]

Group 1 - The company, Dingxin Communications, has completed the registration procedures for changes in its legal representative, business scope, and business address [2] - The new business license has been issued by the Qingdao Administrative Approval Service Bureau [2]

青岛鼎信通讯股份有限公司（以下简称"公司"）已于 2025 年 10 月 28 日 披露了公司 2025 年第三季度报告，为便于广大投资者更加全面深入地了解公司 2025 年第三季度经营成果、财务状况，公司计划于 2025 年 11 月 21 日（星期五） 15:00-16:00 举办 2025 年第三季度业绩说明会，就投资者关心的问题进行交流， 广泛听取投资者的意见和建议。 会议召开时间：2025 年 11 月 21 日（星期五）15:00-16:00 会议召开地点：价值在线（www.ir-online.cn） 会议召开方式：网络互动方式 证券代码：603421 证券简称：鼎信通讯 公告编号：2025-058 青岛鼎信通讯股份有限公司 关于召开2025年第三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： 会 议 问 题 征 集 ： 投 资 者 可 于 2025 年 11 月 21 日 前 访 问 网 址 https://eseb.cn/1sVBMCLXLa0 或使用微信扫描下方小程序码进 ...

证券代码：603421 证券简称：鼎信通讯 公告编号：2025-059 青岛鼎信通讯股份有限公司 关于完成工商变更登记并换发营业执照的公告 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。 统一社会信用代码：91370200671775202M 名称：青岛鼎信通讯股份有限公司 类型：股份有限公司（上市、自然人投资或控股） 住所：山东省青岛市市南区宁夏路 288 号 6 号楼 5 楼 B 区（一照多址） 法定代表人：刘敏 注册资本：陆亿伍仟贰佰壹拾玖万零伍佰壹拾壹元整 成立日期：2008 年 03 月 26 日 1 经营范围：一般项目：集成电路设计；集成电路销售；集成电路芯片及产品 制造；集成电路芯片及产品销售；货物进出口；技术进出口；输配电及控制设备 制造；配电开关控制设备研发；配电开关控制设备制造；配电开关控制设备销售； 企业管理咨询；工程和技术研究和试验发展；仪器仪表制造；仪器仪表销售；电 工仪器仪表制造；电工仪器仪表销售；智能仪器仪表制造；智能仪器仪表销售； 终端计量设备制造；终端计量设备销售；通信设备制造；通信设备销售； ...

Core Viewpoint - Dingxin Communication's stock price has shown fluctuations with a year-to-date increase of 3.93%, while facing a significant decline of 52.71% in revenue for the first nine months of 2025 compared to the previous year [2][3]. Group 1: Stock Performance - On November 5, Dingxin Communication's stock rose by 2.21%, reaching 7.41 CNY per share, with a trading volume of 29.24 million CNY and a turnover rate of 0.61% [1]. - The stock has experienced a 3.20% increase over the last five trading days, a 7.37% decrease over the last 20 days, and a 5.86% increase over the last 60 days [2]. - The company has appeared on the trading leaderboard four times this year, with the most recent instance on September 30, where it recorded a net purchase of 46.65 million CNY [2]. Group 2: Financial Performance - For the period from January to September 2025, Dingxin Communication reported a revenue of 1.066 billion CNY, reflecting a year-on-year decrease of 52.71%, and a net profit attributable to shareholders of -336 million CNY, a decrease of 1082.52% [2]. - The company has distributed a total of 475 million CNY in dividends since its A-share listing, with 75.65 million CNY distributed over the past three years [3]. Group 3: Company Overview - Dingxin Communication, established on March 26, 2008, and listed on October 11, 2016, is located in Qingdao, Shandong Province, specializing in the research, production, sales, and services of low-voltage power line carrier communication products [2]. - The company's main business revenue composition includes 74.93% from power electronic products, 18.43% from fire protection products, 6.03% from material sales, and 0.60% from service income [2]. - Dingxin Communication operates within the communication equipment sector, with involvement in concepts such as virtual power plants, smart grids, chip concepts, energy storage, and photovoltaic glass [2].

Core Insights - A total of 842 stocks reported their latest shareholder numbers as of October 20, with 339 stocks showing a decline compared to the previous period [1][3] - The stocks with the largest decrease in shareholder numbers include Xinkai Technology, Dingxin Communication, and Hahai Huaton, with declines of 26.54%, 24.75%, and 23.02% respectively [3][4] - The average performance of concentrated stocks since October 1 has been weaker than the Shanghai Composite Index, with only 36% of these stocks outperforming the index [2] Shareholder Changes - 15 stocks experienced a decline of over 10% in shareholder numbers, with Xinkai Technology leading at a decrease of 26.54% [3][4] - Dingxin Communication and Hahai Huaton followed with declines of 24.75% and 23.02% respectively [4] - The overall trend indicates a significant outflow of funds from these stocks, with Xinkai Technology seeing a net outflow of 16.05 million yuan and Dingxin Communication experiencing a net outflow of 38.46 million yuan [3] Market Performance - The average decline of concentrated stocks since October 11 is 0.37%, with notable gainers including Standard Shares, Changshan Pharmaceutical, and Shangtai Technology, which increased by 35.86%, 33.89%, and 27.16% respectively [2][3] - The concentrated stocks are primarily found in the machinery, basic chemicals, and electronics sectors, with 47, 43, and 28 stocks respectively [3][4] Financial Performance - Among the concentrated stocks, 336 have released their third-quarter reports, with COFCO Technology showing the highest year-on-year net profit growth of 724.42% [4] - Xinkai Technology reported a net profit of 64.09 million yuan for the third quarter, down 11.21% year-on-year, while Dingxin Communication reported a loss of 336 million yuan [3][4]

Summary of Key Points Core Viewpoint - The recent data indicates a significant decline in the number of shareholders for many companies, with 783 stocks reporting their latest shareholder counts as of October 20, showing a decrease in 325 stocks compared to the previous period. This trend may reflect broader market dynamics and investor sentiment [1][3]. Group 1: Shareholder Count Changes - A total of 783 stocks disclosed their shareholder counts as of October 20, with 325 stocks experiencing a decline [3]. - Among these, 15 stocks saw a decrease of over 10% in shareholder counts, with the largest drop being 26.54% for Xinkai Technology, which reported 11,469 shareholders [3][4]. - Dingshin Communications followed with a 24.75% decrease, bringing its shareholder count to 32,706 [3][4]. Group 2: Market Performance of Concentrated Stocks - The average performance of concentrated stocks since October 1 shows a 0.76% increase, underperforming the Shanghai Composite Index, which rose by 3.44% during the same period [2]. - Only 28% of the concentrated stocks outperformed the market, indicating a challenging environment for these stocks [2]. Group 3: Financial Performance Insights - Among the concentrated stocks, 240 have released their third-quarter reports, with the highest net profit growth reported by COFCO Technology at 724.42% year-on-year [4]. - Luxshare Precision is projected to have a median net profit of 11.117 billion, reflecting a year-on-year increase of 22.50% [4]. Group 4: Industry Concentration - The concentrated stocks are primarily found in the machinery, basic chemicals, and electronics sectors, with 47, 40, and 28 stocks respectively [3].

Core Viewpoint - Qingdao Dingshin Communication Co., Ltd. reported a significant decline in revenue and profit for the first three quarters of 2025, primarily due to adverse external conditions and loss of orders from major power grids [1][4][5]. Financial Performance - The company's revenue for the first three quarters was 1.066 billion yuan, a year-on-year decrease of 52.71% [1]. - The net profit attributable to shareholders was a loss of 336 million yuan, a year-on-year decline of 1082.52% [1]. - The basic earnings per share (EPS) was -0.52 yuan [1]. - For Q3 2025, revenue was 362 million yuan, down 55.8% year-on-year [1]. - The net profit for Q3 was a loss of 117 million yuan, a year-on-year decrease of 679.4% [1]. Asset and Equity Position - As of the end of Q3, total assets were 3.872 billion yuan, a decrease of 16.9% from the end of the previous year [2]. - The net assets attributable to shareholders were 2.801 billion yuan, down 10.7% from the end of the previous year [2]. Profitability Metrics - The gross margin for the first three quarters was 27.66%, a decrease of 11.38 percentage points year-on-year [2]. - The net margin was -31.55%, down 30.29 percentage points from the same period last year [2]. - In Q3, the gross margin was 26.86%, a year-on-year decline of 10.19 percentage points [2]. Expense Management - Total operating expenses for Q3 were 604 million yuan, a reduction of 211 million yuan year-on-year [2]. - The expense ratio was 56.65%, an increase of 20.49 percentage points from the previous year [2]. - Sales expenses decreased by 34.16%, management expenses by 16.56%, R&D expenses by 22.32%, and financial expenses by 25.85% [2]. Shareholder Dynamics - As of the end of Q3, the total number of shareholders was 33,800, an increase of 5,361 or 18.85% from the end of the previous half [3]. - The average market value per shareholder remained unchanged at 154,400 yuan [3]. Regulatory Issues - The company faced regulatory warnings from the Shanghai Stock Exchange due to inaccurate information disclosure regarding a technology authorization agreement with PingTouGe [7][8]. - The company clarified that the agreement only involved specific technology rights for chip development, not related to AI or other high-demand products [7][8].