Core Viewpoint - Dingxin Communication (603421) expects a net loss attributable to shareholders of the parent company between -190 million to -227 million yuan for the first half of 2025, with a net profit excluding non-recurring gains and losses between -194 million to -232 million yuan [1] Group 1: Financial Performance - The company anticipates a significant net loss for the reporting period due to adverse impacts on its power business from being blacklisted by State Grid Corporation of China and market entry restrictions from Southern Power Grid Co., Ltd [1] - The fire protection business has also been negatively affected by the ongoing adjustments in the real estate industry, leading to a substantial decline in operating revenue [1] Group 2: Business Impact - The reduction in order volume for the power business has been described as a major factor contributing to the expected losses [1] - The overall financial performance is heavily influenced by external regulatory and market conditions, particularly in the power and real estate sectors [1]

Group 1 - Qingdao Dingxin Communication Co., Ltd., Qingdao Zhidian New Energy Technology Co., Ltd., and Qingdao Dingxin Communication Power Engineering Co., Ltd. have obtained a patent for a signal processing circuit for Rogowski coils, which is applicable in the smart grid sector [1] - The patent features real-time measurement capabilities, fast response speed, and a wide current measurement range, ensuring measurement accuracy even under low current conditions [1] - The signal processing circuit includes components such as a passive RC integration circuit, low-pass filter circuit, T-type integration circuit, and anti-aliasing filter circuit, which work together to convert and process current signals [1] Group 2 - Qingdao Dingxin Communication Co., Ltd. was established in 2008 with a registered capital of 652.19 million RMB and has participated in 2,622 bidding projects [2] - Qingdao Zhidian New Energy Technology Co., Ltd. was founded in 2015 with a registered capital of 48.64 million RMB and has been involved in 142 bidding projects [2] - Qingdao Dingxin Communication Power Engineering Co., Ltd. was also established in 2015 with a registered capital of 7.5 million RMB and has participated in 27 bidding projects [2]

Core Viewpoint - The continuous decline in the number of shareholders for certain companies indicates a trend of increasing concentration of shares, with 343 companies reporting their latest shareholder numbers as of June 10, showing that 34 companies have seen a decline for more than three consecutive periods [1] Group 1: Shareholder Trends - Companies like Kangxin New Materials and Dingxin Communications have experienced a significant drop in shareholder numbers, with Kangxin New Materials reporting 42,574 shareholders, a cumulative decrease of 29.28%, and Dingxin Communications reporting 29,453 shareholders, a cumulative decrease of 24.43% [1] - Other companies with notable declines in shareholder numbers include Junwei Electronics and Chuangyitong, with Junwei Electronics experiencing a decline for 10 consecutive periods [1] Group 2: Market Performance - Among the companies with declining shareholder numbers, 25 have seen their stock prices rise, while 9 have experienced declines, with Tianfu Communication, Dongshan Precision, and Sudar Shares showing significant increases of 42.05%, 18.39%, and 17.40% respectively [2] - 22 of these companies outperformed the Shanghai Composite Index, with Tianfu Communication, *ST Lanhua, and Dongshan Precision achieving relative returns of 40.24%, 16.69%, and 16.58% respectively [2] Group 3: Industry and Institutional Interest - The industries with the highest concentration of companies experiencing declining shareholder numbers include machinery, electronics, and communications, with 5, 5, and 3 companies respectively [2] - In terms of institutional interest, 5 companies with declining shareholder numbers were subject to institutional research in the past month, with Tianfu Communication, Xinshi Da, and Ximai Food receiving the most attention from institutions [2]

Group 1 - The core point of the announcement is the transfer of shares from the controlling shareholder Wang Jianhua to Zhang Qi due to a marital property division, resulting in a non-trading transfer of 60,593,352 shares, which accounts for 9.29% of the company's total share capital [1] - Before the transfer, Wang Jianhua held 152,168,236 shares (23.33% of total share capital), and after the transfer, he holds 91,574,884 shares (14.04% of total share capital) [1] - The transfer does not involve market reduction, does not trigger a mandatory bid, and does not change the controlling shareholder or actual controller of the company, ensuring no harm to the company or minority investors [1] Group 2 - The company emphasizes compliance with relevant regulations regarding shareholder and director share reductions, including the Securities Law and the Shanghai Stock Exchange's self-regulatory guidelines [2]

证券代码：603421 证券简称：鼎信通讯 公告编号：2025-035 近日公司收到王建华先生的通知，王建华先生已取得中国证券登记结算有限 责任公司出具的《证券过户登记确认书》，其直接持有的60,593,352股（占公司 总股本的9.29%）公司股份已通过证券非交易过户的方式过户登记至张启名下， 相关手续已办理完毕。 本次证券非交易过户前后，张启女士、王建华先生及其一致行动人持有公司 股份情况如下： | 股东 名称 | 本次权益变动前 | | | 本次权益变动后 | | | --- | --- | --- | --- | --- | --- | | | 股数（股） | 占总股本比例（%） | | 股数（股） | 占总股本比例（%） | | 曾繁忆 | 176,189,440 | | 27.02 | 176,189,440 | 27.02 | | 王建华 | 152,168,236 | | 23.33 | 91,574,884 | 14.04 | | 张启 | 0 | | 0 | 60,593,352 | 9.29 | 注：上述股份数占总股本的比例如有差异，是由于四舍五入所造成。 1 青岛鼎信通讯股份有限公司 ...

证券代码：603421 证券简称：鼎信通讯 公告编号：2025-034 青岛鼎信通讯股份有限公司 重要内容提示： 案件所处的诉讼阶段：一审判决未生效； 上市公司所处的当事人地位：被告； 涉案的金额：一审判决赔付金额合计 11,735.45 元（不含诉讼费等相关 费用）； 是否会对上市公司损益产生负面影响：本案尚处一审判决阶段，案件当 事双方可以在规定期限内申请上诉。公司将在法定上诉期间内，经综合研判、评 估后决定是否就一审判决提起上诉。案件判决结果尚存在不确定性，目前暂无法 判断对公司本期或期后利润的影响，敬请广大投资者注意投资风险。 青岛鼎信通讯股份有限公司（以下简称"公司"）此前已披露关于投资者诉 公司证券虚假陈述责任纠纷的诉讼事项及进展情况，详见公司 2024 年 8 月 31 日于《上海证券报》和上海证券交易所网站（www.sse.com.cn）披露的《鼎信通 讯关于收到<应诉通知书>的公告》（公告编号：2024-052）、2025 年 2 月 8 日 披露的《鼎信通讯关于投资者诉讼事项进展公告》（公告编号：2025-006）及 2025 年 5 月 29 日披露的《鼎信通讯关于投资者诉讼事项的进展公 ...

证券代码：603421 证券简称：鼎信通讯 公告编号：2025-033 青岛鼎信通讯股份有限公司 关于投资者诉讼事项的进展公告 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。 重要内容提示： 是否会对上市公司损益产生负面影响：本案尚处一审判决阶段，案件当 事双方可以在规定期限内申请上诉。公司将在法定上诉期间内，经综合研判、评 估后决定是否就一审判决提起上诉。案件判决结果尚存在不确定性，目前暂无法 判断对公司本期或期后利润的影响，敬请广大投资者注意投资风险。 青岛鼎信通讯股份有限公司（以下简称"公司"）此前已披露关于投资者诉 公司证券虚假陈述责任纠纷的诉讼事项及进展情况，详见公司 2024 年 8 月 31 日于《上海证券报》和上海证券交易所网站（www.sse.com.cn）披露的《鼎信通 讯关于收到<应诉通知书>的公告》（公告编号：2024-052）及 2025 年 2 月 8 日 披露的《鼎信通讯关于投资者诉讼事项进展公告》（公告编号：2025-006）。 近日，公司收到山东省青岛市中级人民法院（以下简称"青岛中院"）送达 ...

Group 1 - Weiling Co., Ltd. announced that its subsidiary Tianjin Changling Mining Partnership acquired 74.3% of Hunan Linwu Jiayu Mining Co., Ltd. for 220 million yuan, focusing on non-ferrous and black metal mining and smelting [1] - Zhongnong Lihua plans to acquire at least 50% of Taizhou Agricultural Materials Co., Ltd., which will become a subsidiary upon completion of the acquisition [1] - Chaohongji is planning to issue H-shares on the Hong Kong Stock Exchange, with details yet to be finalized [1][2] Group 2 - Hong Sifang's subsidiary plans to invest approximately 1.49 billion yuan in a new production base in Suizhou High-tech Industrial Development Zone [3] - Shangwei New Materials announced that its major shareholder Jin Feng Investment Holdings intends to reduce its stake by up to 3%, equating to 12.1 million shares [4] - Yihe Jiaye has changed its name to Beijing Ruimaite Medical Technology Co., Ltd., effective from May 21 [5][6] Group 3 - Huaxi Energy reported that its controlling shareholder has been detained and is under investigation, with no longer holding any positions in the company [7][8] - Aofei Entertainment plans to invest 10 million yuan in a partnership for equity investment in Shenzhen Xuanyuan Technology Co., Ltd. [9] - Hangzhou Electric plans to reduce its shares by up to 1.93%, equating to 13.36 million shares [10] Group 4 - Jiuhua Tourism intends to raise up to 500 million yuan through a private placement for various projects, including hotel renovations and transportation upgrades [11] - Dingxin Communications elected Liu Min as the new chairman following the resignation of Wang Jianhua [12] - Jiewate plans to acquire 40.89% of Nanjing Tianyi Hexin Electronics for 319 million yuan [13] Group 5 - Darui Electronics intends to acquire 80% of Dongguan Weisi Technology Co., Ltd. through cash purchase and capital increase [14] - Tianzhihang's shareholders plan to reduce their stakes by up to 3%, with each shareholder intending to sell 679,000 shares [15][16] - ST Shilong will lift its risk warning and change its stock name to Shilong Industrial, with trading limits adjusted from 5% to 10% [17] Group 6 - Ningde Times announced the listing of its H-shares on the Hong Kong Stock Exchange, raising approximately 35.33 billion HKD [19][20] - Mingyang Electric's shareholders plan to reduce their stakes by up to 3.01%, totaling 941,000 shares [21] - Bohai Leasing intends to transfer 100% of Global Sea Containers Ltd. for 1.75 billion USD, focusing on optimizing its debt structure [21]

Group 1 - Zhaoyi Innovation plans to issue H-shares and list on the Hong Kong Stock Exchange, considering the interests of existing shareholders and market conditions [3] - ST Zhongdi has decided to abandon the commercial opportunity for the Jiageng Ke Yi City land project, with the controlling shareholder planning to develop the project instead [4] - Xichang Electric Power expects a reduction of approximately 5.4 million yuan in net profit for 2025 due to adjustments in the time-of-use electricity pricing mechanism [5] Group 2 - Sanfu New Materials intends to invest 620 million yuan in a project for high-safety dry electrode battery key materials and high-frequency electronic information composite materials [6] - Weifu High-Tech's subsidiary plans to establish a joint venture with Baolong Technology to expand the active suspension motor hydraulic pump business [7] - Yulong Co., Ltd. will have its stock delisted on May 27, 2025, following a decision by the Shanghai Stock Exchange [8] Group 3 - Chen'an Technology's shareholder is transferring 6.27% of the company's shares to Hefei Guotou, aiming to introduce strategic investors [9] - Huamao Technology is planning to acquire a 100% stake in Fuchuang Youyue, with stock trading suspended for up to 10 trading days [11] - Baolong Technology's subsidiary will collaborate with Weifu High-Tech's subsidiary to develop core components for the active suspension system [12] Group 4 - Zhongnong Lihua intends to acquire at least 50% of Taizhou Agricultural Supplies, enhancing its product and service range [13] - Weiling Co., Ltd.'s subsidiary has successfully acquired 74.3% of Jiayu Mining for 220 million yuan, focusing on expanding into the non-ferrous metal resource sector [14][15] - Hengshi Technology's subsidiary has been approved for public transfer of shares on the New Third Board [16] Group 5 - Xiang Teng New Materials plans to acquire an additional 12.5% stake in its subsidiary Shanghai Shangda for 25.3 million yuan [17] - ST Texin has extended its employee stock ownership plan by 12 months, reflecting confidence in the company's long-term development [18] - Baili Electric has issued a risk warning regarding its stock price increase, indicating no significant changes in fundamentals [19] Group 6 - Hu Silicon Industry plans to acquire minority stakes in three semiconductor companies for approximately 7.04 billion yuan [20][21] - Demais plans to change its controlling shareholder, leading to a temporary suspension of stock trading [22] - FAW Fuwei has received a notice from a well-known new energy brand for a project expected to generate 1.06 billion yuan in total sales over its lifecycle [23] Group 7 - Hangyang Co. plans to establish a subsidiary for a large modular cryogenic equipment manufacturing project with an estimated investment of 557 million yuan [24] - Jiewate intends to acquire 40.89% of Tianyi Hexin for 319 million yuan, enhancing its product line in the signal chain category [25] - Dingxin Communications has elected a new chairman following the resignation of the previous chairman [26][27] Group 8 - Aofei Entertainment plans to invest 10 million yuan in a partnership to indirectly invest in AI robotics company Xuan Yuan Technology [28] - Huaxi Energy's controlling shareholder has been detained, but the company states that operations remain normal [29] - Yihe Jiaye will change its stock name to "Ruimaite" starting May 21 [30] Group 9 - Zhongjin Environment will change its name to "Southern Pump Industry" effective May 21 [31] - Hong Sifang's subsidiary plans to invest approximately 1.49 billion yuan in a new chemical materials and fertilizers industrial park [32] - Buchang Pharmaceutical's subsidiary has signed a research agreement for MF59 adjuvant with a pharmaceutical company [33] Group 10 - Hongjing Technology has signed a service contract worth 597 million yuan for a smart computing project [34] - Zhuojin Co. has won a bid for a soil remediation project worth 67.68 million yuan [35] - Xinjiang Jiaojian has been awarded a contract for a highway project valued at 451 million yuan [36] Group 11 - China National Materials Energy's subsidiary has signed a contract for an EPC project in Uzbekistan worth approximately 1.252 billion yuan [37] - Ruixin Microelectronics' shareholder plans to reduce its stake by up to 2% [38] - Shanghai Yizhong's shareholder also plans to reduce its stake by up to 2% [39] Group 12 - Sanyou Medical's controlling shareholder plans to reduce its stake by up to 1.44% [40] - Hangdian Co.'s controlling shareholder plans to reduce its stake by up to 1.93% [41] - Shangwei New Materials' shareholder plans to reduce its stake by up to 3% [42] Group 13 - Mingchen Health plans to repurchase shares worth between 30 million and 50 million yuan [43] - Jiuhua Tourism plans to raise up to 500 million yuan through a private placement for various projects [44] - Yuegui Co. plans to raise up to 900 million yuan for several projects [46]

Core Points - The company announced a change in its chairman and adjustments to the board's specialized committees [1] - Wang Jianhua resigned as chairman and audit committee member, while continuing as a director and nomination committee member [1] - Liu Min was elected as the new chairman and audit committee member, with changes in the remuneration and assessment committee [1] Board Composition Changes - Audit Committee Before: Tian Kunru (Chairman), Dong Guiwu, Wang Jianhua - Audit Committee After: Tian Kunru (Chairman), Dong Guiwu, Liu Min [1] - Remuneration and Assessment Committee Before: Wang Zhidong (Chairman), Tian Kunru, Zeng Fanyi - Remuneration and Assessment Committee After: Wang Zhidong (Chairman), Tian Kunru, Liu Min [1] Liu Min's Background - Liu Min, born in 1971, holds a PhD in Architecture from Tsinghua University and an EMBA from Tsinghua University Wudaokou School of Finance [2] - Previous positions include Vice Director of Qingdao Planning Bureau and Chairman of Poly (Qingdao) Industrial Co., Ltd. [2] - Liu Min has no direct or indirect shareholding in the company and has no disqualifications under the Company Law [2]