Core Viewpoint - The announcement from Dingxin Communications regarding the investigation of its Vice President Yuan Zhishuang by the China Securities Regulatory Commission (CSRC) for suspected short-term trading of the company's stock highlights potential governance issues within the company and may impact investor confidence [3]. Group 1: Company Investigation - Dingxin Communications announced that its Vice President Yuan Zhishuang has been investigated by the CSRC for suspected short-term trading of the company's stock, which is based on the Securities Law and Administrative Penalty Law of the People's Republic of China [3]. - The company stated that this investigation pertains to Yuan Zhishuang personally and will not significantly affect the company's daily operations [3]. Group 2: Financial Performance - As of the end of the third quarter of 2025, Dingxin Communications reported a revenue of 1.066 billion yuan, representing a year-on-year decrease of 52.71%, and a net profit attributable to shareholders of -336 million yuan [4]. Group 3: Shareholder Activity - Significant shareholder Wang Tianyu reduced his stake in Dingxin Communications from 6.14% to 5.94% by selling 1.3228 million shares between January 14 and January 16, 2026 [5]. - Wang Tianyu has plans to further reduce his holdings by up to 19.5 million shares, which would account for no more than 3% of the company's total share capital, through both centralized bidding and block trading methods [5]. - Additionally, the company disclosed that its director and senior management member Fan Jianhua completed a share reduction plan, selling 2 million shares, which is 0.31% of the total share capital, between November 6, 2025, and February 6, 2026 [6].

北京商报讯（记者 王蔓蕾）1月16日晚间，鼎信通讯（603421）披露公告称，公司收到董事兼副总经理 袁志双通知，其于近日收到证监会出具的《立案告知书》，因涉嫌短线交易公司股票，证监会决定对其 立案。 鼎信通讯表示，本次事项系对袁志双个人的调查，不会对公司日常经营活动产生重大影响。立案调查期 间，公司及相关人员将积极配合证监会开展调查工作。 ...

Core Viewpoint - The company Dingxin Communication (603421) is under investigation by the China Securities Regulatory Commission (CSRC) for suspected short-term trading of its stock by its vice president, Yuan Zhishuang, which is not expected to significantly impact the company's daily operations [1][3]. Group 1: Investigation Details - Yuan Zhishuang, the vice president and board member, received a notice from the CSRC regarding the investigation based on allegations of short-term trading [1]. - The investigation pertains solely to Yuan Zhishuang as an individual, and the company will cooperate with the CSRC during this process [3]. Group 2: Company Background - Dingxin Communication was founded in 2008 and went public in October 2016, focusing on modern smart distribution networks, marketing measurement, renewable energy, smart street lighting, intelligent water management, smart firefighting, and tower-related businesses [3]. - Yuan Zhishuang has been with the company since June 2008, holding various positions including vice president of marketing services [3]. Group 3: Shareholding and Trading Plans - Yuan Zhishuang planned to reduce his shareholding by up to 2.16 million shares (0.34% of total share capital) from November 6, 2025, to February 6, 2026, through block trades and centralized bidding [3]. - As of November 29, 2025, Yuan had already reduced his holdings by 610,000 shares and intended to terminate the reduction plan early [3]. Group 4: Stock Performance - Dingxin Communication's stock price has shown stability over the past year, with a cumulative increase of 12.73% from January 16, 2025, to the present [4]. - As of January 16, 2026, the company's market capitalization is approximately 4.9 billion [4].

鼎信通讯（603421）(603421.SH)发布公告，公司收到董事兼副总经理袁志双先生通知，其于近日收到 中国证监会出具的《立案告知书》(编号：证监立案字0242026001号)，因涉嫌短线交易公司股票，中国 证监会决定对其立案。 ...

智通财经APP讯，鼎信通讯(603421.SH)发布公告，公司收到董事兼副总经理袁志双先生通知，其于近 日收到中国证监会出具的《立案告知书》(编号：证监立案字0242026001号)，因涉嫌短线交易公司股 票，中国证监会决定对其立案。 ...

Group 1 - Su Dawei Ge's wholly-owned subsidiary plans to invest in a fund focusing on semiconductor, new energy, AI, and aerospace sectors, contributing 20 million yuan for a 10.2302% stake [2] - Shimao Energy terminates plans for a change in control after failing to reach consensus on key terms, with stock resuming trading on January 19 [3] - Huatian Hotel's controlling shareholder is planning a merger and restructuring, potentially changing the actual controller to the Hunan Provincial State-owned Cultural Assets Supervision and Administration Commission [4] Group 2 - Jinpu Titanium's subsidiary Xuzhou Titanium will cease production due to intensified market competition, which is expected to significantly impact revenue in 2026 [5] - Dingxin Communications' deputy general manager is under investigation by the CSRC for suspected short-term trading of company stock, but it will not affect the company's operations [6] - Xinhang New Materials plans to acquire 51% of Hairete for 12.8826 million yuan to explore new growth points [7] Group 3 - Hualan Co.'s controlling shareholder raises the upper limit of its share buyback plan from 58.08 yuan to 86.66 yuan per share [8] - Wanhua Chemical's MDI Phase II facility has resumed normal production after maintenance [9] - Junsheng Electronics introduces a strategic investor, with a 1 billion yuan investment aimed at reducing overall debt [10] Group 4 - Jiangbolong announces five shareholders plan to transfer 3% of the company's shares through a pricing inquiry [11] - Haitai Technology expects a net profit increase of 226.86% to 323.97% in 2025, driven by high industry demand and increased orders [13] - Northern Rare Earth anticipates a net profit increase of 116.67% to 134.6% in 2025 due to successful market expansion [14] Group 5 - Lanke Technology forecasts a net profit increase of 52.29% to 66.46% in 2025, benefiting from the AI industry trend [15] - Keda expects a net profit increase of 52.21% to 67.43% in 2025, driven by growth in data center and new energy sectors [16] - Cambridge Technology predicts a net profit increase of 51% to 67% in 2025, supported by strong demand in core business areas [17] Group 6 - China Electric Research anticipates a net profit of 533 million yuan in 2025, a 14.04% increase year-on-year [18] - China Automotive Research expects a net profit of 1.06 billion yuan in 2025, a 17.85% increase year-on-year [19] - Zhongcheng Co. forecasts a net profit of 276 million to 414 million yuan in 2025, recovering from a previous loss [20] Group 7 - Junda Co. expects a net loss of 1.2 billion to 1.5 billion yuan in 2025, worsening from a previous loss of 591 million yuan [21] - Guangdian Network anticipates a net loss of 1.29 billion to 1.55 billion yuan in 2025, attributed to declining traditional business revenue [22] - Jiugang Hongxing predicts a net loss of approximately 1.879 billion yuan in 2025, an improvement from a previous loss of 2.617 billion yuan [23] Group 8 - Jinbo Co. expects a net loss of around 1.4 billion yuan in 2025, worsening from a previous loss of 815 million yuan [24] - Dongjiang Environmental anticipates a net loss of 1.05 billion to 1.35 billion yuan in 2025, due to ongoing industry adjustments [25] - Daqing Energy forecasts a net loss of 1 billion to 1.3 billion yuan in 2025, despite improvements in production costs [26] Group 9 - Dongzhu Ecology expects a net loss of 935 million to 1.135 billion yuan in 2025, impacted by macroeconomic factors [27] - Weiyuan Co. anticipates a net loss of 950 million to 1.05 billion yuan in 2025, turning from profit to loss [28] - Huanghe Xuanfeng predicts a net loss of 850 million yuan in 2025, an improvement from a previous loss of 983 million yuan [29] Group 10 - Fushun Special Steel expects a net loss of 770 million to 870 million yuan in 2025, turning from profit to loss [30] - China First Heavy Industries anticipates a net loss of 310 million to 460 million yuan in 2025, significantly reducing losses compared to the previous year [31] - Jishi Media forecasts a net loss of 364 million to 455 million yuan in 2025, with overall revenue expected to remain stable [33] Group 11 - Guangxi Energy expects a net loss of 170 million to 220 million yuan in 2025, turning from profit to loss [34] - Baike Bio anticipates a net loss of 220 million to 280 million yuan in 2025, turning from profit to loss due to declining vaccine sales [35] - Zhongtai Auto expects to remain in a loss position for 2025, with a projected positive net asset value by year-end [36] Group 12 - Nasda anticipates a loss for 2025 due to significant asset sales and industry policy adjustments [37] - Rongsheng Development expects to report a loss for 2025, with the amount not exceeding the previous year's audited net assets [38] Group 13 - China National Materials signs a contract worth 299 million Canadian dollars for engineering services in Canada [40] - Dayu Water-saving's subsidiary wins a project worth 133 million yuan for water source guarantee engineering [41] - Hailu Heavy Industry reports new orders totaling 1.941 billion yuan for 2025 [42]

证券代码：603421 证券简称：鼎信通讯 公告编号：2026-003 青岛鼎信通讯股份有限公司 关于持股 5%以上股东权益变动触及 1%刻度的提示性公告 投资者王天宇保证向本公司提供的信息真实、准确、完整，没有虚假记载、误导 性陈述或重大遗漏。 本公司董事会及全体董事保证公告内容与信息披露义务人提供的信息一致。 重要内容提示： | 权益变动方向 | 比例增加□ | 比例减少√ | | --- | --- | --- | | 权益变动前合计比例 | 6.14% | | | 权益变动后合计比例 | 5.94% | | | 本次变动是否违反已作出的承诺、意向、计划 | 是□ 否√ | | | 是否触发强制要约收购义务 | 是□ 否√ | | 一、 信息披露义务人及其一致行动人的基本信息 上述信息披露义务人无一致行动人。 二、 权益变动触及 1%刻度的基本情况 近日，青岛鼎信通讯股份有限公司（以下简称"公司"）收到持股 5%以上 股东王天宇先生函告，获悉其于 2026 年 1 月 14 日至 2026 年 1 月 16 日期间通过 集中竞价方式减持公司股份数量 1,322,800 股。本次权益变动后，王天宇先生持 ...

| 企业名称 | 证书编号 | 发证日期 | | 有效期 | 享受企业所 得税税率 | | --- | --- | --- | --- | --- | --- | | 鼎信通讯 | GR202537100368 | 2025 年 | 12 月 | 2025年-2027年 | 15% | | 拓维科技 | GR202537100989 | 19 日 | | | | 证券代码：603421 证券简称：鼎信通讯 公告编号：2026-001 青岛鼎信通讯股份有限公司 关于公司及子公司通过高新技术企业认定的公告 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。 近日，全国高新技术企业认定管理工作领导小组办公室发布《对青岛市认定 机构 2025 年认定报备的第一批高新技术企业进行备案的公告》及《对青岛市认 定机构 2025 年认定报备的第二批高新技术企业进行备案的公告》，青岛鼎信通 讯股份有限公司（以下简称"公司"或"鼎信通讯"）及全资子公司青岛拓维科 技有限公司（以下简称"拓维科技"）通过了高新技术企业认定，具体情况如下： 本次鼎信通讯高 ...

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。 青岛鼎信通讯股份有限公司（以下简称"公司"）收到董事兼副总经理袁志 双先生通知，其于近日收到中国证券监督管理委员会（以下简称"中国证监会"） 出具的《立案告知书》（编号：证监立案字 0242026001 号），因涉嫌短线交易公 司股票，中国证监会根据《中华人民共和国证券法》《中华人民共和国行政处罚 法》等法律法规，决定对其立案。 本次事项系对袁志双先生个人的调查，不会对公司日常经营活动产生重大影 响。立案调查期间，公司及相关人员将积极配合中国证监会开展调查工作。 公司将持续关注上述事项的进展情况，并严格按照有关法律法规的规定和要 求，及时履行信息披露义务，敬请广大投资者注意投资风险。 证券代码：603421 证券简称：鼎信通讯 公告编号：2026-002 青岛鼎信通讯股份有限公司 关于公司董事兼副总经理收到立案告知书的公告 2026 年 1 月 17 日 青岛鼎信通讯股份有限公司董事会 特此公告。 ...

Group 1 - The core point of the announcement is that a major shareholder, Wang Tianyu, will reduce his stake in the company by selling 1.3228 million shares from January 14 to January 16, 2026, decreasing his ownership from 6.14% to 5.94%, which touches the 1% integer scale [1] Group 2 - The share reduction is executed through a centralized bidding method [1] - The transaction indicates a significant movement in shareholder structure, as it represents a decrease of 0.20% in ownership [1] - This reduction may impact market perception and investor confidence regarding the company's future performance [1]