数据宝统计，截至14:39，通鼎互联成交额16.23亿元，创2015年11月30日以来新高。最新股价上涨 8.04%，换手率20.72%。上一交易日该股全天成交额为5.57亿元。 （文章来源：证券时报网） 据天眼查APP显示，通鼎互联信息股份有限公司成立于2001年02月07日，注册资本122999.45万人民 币。（数据宝） ...

Core Insights - The 2025 World Brand 500 list was announced, with 50 Chinese brands included, maintaining the country's position as the third globally [1] - Five brands from Suzhou made the list: Hengli (347th), Shenghong (369th), Hengtong (386th), Bosideng (449th), and Tongding (496th), with Tongding being a first-time entrant [1] - The evaluation criteria for the World Brand 500 include market share, brand loyalty, and global leadership, assessing over 8,000 brands [1] Group 1: Suzhou Brands - Hengli has been on the list for eight consecutive years, improving its position by 16 spots from the previous year [1] - Shenghong has also been recognized for five consecutive years, moving up 11 places this year [2] - Hengtong has established 12 overseas industrial bases and over 40 technical service companies, creating a network covering more than 150 countries [2] Group 2: Brand Strategies - Shenghong is integrating artificial intelligence into its core strategy for industrial upgrade and brand building, focusing on smart industry and green branding [2] - Tongding, a leader in information communication and energy infrastructure, is enhancing its global strategy, exporting products to various countries and increasing brand visibility along the Belt and Road Initiative [2] - Hengtong has undertaken over 150 information and energy interconnection projects globally, enhancing the reputation of Chinese manufacturing [2]

《世界品牌500强》的评判依据是品牌的世界影响力，主要指品牌开拓市场、占领市场并获得利润的能 力。按照品牌影响力的三项关键指标，即市场占有率、品牌忠诚度和全球领导力，世界品牌实验室对全 球8000多个知名品牌进行了综合评分，最终推出了世界最具影响力的500个品牌。 新华财经上海12月17日电（记者杨有宗）由世界品牌实验室编制的2025年度（第二十二届）《世界品牌 500强》排行榜17日发布，共有50个中国品牌上榜。 今年新上榜的品牌总计23个。中国有3个新品牌入选，分别是宁德时代、中国联通和通鼎，体现了中国 在新能源、基础设施以及信息通信领域的综合实力有了显著提高。 今年《世界品牌500强》共覆盖了50个行业。其中，汽车与零部件共有33个品牌上榜，排名第一；能 源、食品与饮料各有30个品牌上榜，并列第二；有29个银行品牌上榜，排名第四；零售、计算机与通讯 各有27个品牌上榜，并列第五。随着人工智能时代的到来，和AI相关的科技品牌上榜数量出现爆发式 增长。全球范围内普遍出现消费增长乏力，食品与饮料、奢侈品品牌的排名出现整体下滑。 （文章来源：新华财经） ...

Market Overview - The main board saw significant gains with stocks like Tongding Interconnection (+10.09%), Guangxun Technology (+10.01%), and Zhongci Electronics (+10.00%) leading the charge [1] - The ChiNext board also performed well, with Yidong Electronics (+20.01%), Gu'ao Technology (+20.00%), and Liant Technology (+20.00%) showing strong increases [1] - The Sci-Tech Innovation board was led by Kaipu Cloud (+20.00%), Juguang Technology (+17.34%), and Shengyi Electronics (+13.56%) [1] - Active sub-industries included SW Communication Network Equipment and Devices (+7.11%) and SW Communication Cables and Accessories (+6.90%) [1] Domestic News - Aibang ARAI announced the launch of the industry's first ultra-low power silicon-based LCD micro-display panel, model OP03021, featuring a resolution of 1632×1536 and a refresh rate of 90Hz [1] - The semiconductor sector observed a strategic acquisition by the Greater Bay Area Fund and Huada Jiutian of Sierxin, enhancing Huada Jiutian's capabilities in digital chip design and verification [1] - Texas Instruments and UBTECH Robotics entered a strategic partnership, with Texas Instruments procuring UBTECH's Walker S2 humanoid robots for deployment in production lines [1] - Xiaomi raised prices on several tablet models, with the entry-level Redmi Pad 2 seeing a price increase of approximately 20%, from 999 yuan to 1199 yuan [1] Company Announcements - Nanchip Technology plans to issue 1.933 billion yuan in convertible bonds to fund projects in smart power management chips, automotive chips, and industrial sensor and control chips [3] - Geke Micro announced a government subsidy of 60 million yuan received by its subsidiary Geke Microelectronics (Zhejiang) [3] - Mingyang Circuit projected a maximum of 5.09 million yuan in related transactions with Bai Rou New Materials for 2026, primarily for raw material procurement [3] - Pingzhi Information's subsidiary signed a 5-year contract with Inner Mongolia Unicom for computing power services, valued at 38.25 million yuan [3] Overseas News - TOPPAN plans to install an advanced semiconductor packaging R&D line at its Ishikawa factory, set to be operational by July 2026 [2] - SK Hynix's advanced semiconductor packaging factory in Indiana is set to break ground in Q1 2026, with an investment of approximately 3.87 billion USD [2] - SEM forecasts a 13.7% year-on-year increase in global semiconductor equipment sales in 2025, reaching a historical high of 133 billion USD [2] - Samsung Electronics aims to finalize the product development specifications for LPDDR6-PIM memory solutions by the end of this year, enhancing AI capabilities in edge computing devices [2]

随着AI算力、数据中心等领域需求持续扩容，光通信产业链（尤其是光模块、光器件等核心环节）景 气度大幅攀升，博菲电气、通鼎互联、长飞光纤、奕东电子、中瓷电子领涨，题材相关企业整理如下： 博菲电气（002155.SZ） 最新股价：37.46元 日涨幅：+10.01% 亮点：VPI树脂应用于光模块、通信领域降温热 通鼎互联（002491.SZ） 最新股价：6.22元 日涨幅：+10.00% 亮点：通信线缆全产业链企业，建成覆盖光纤预制棒、光纤等业务的完整产业链，光光纤缆、光棒领域 一体化优势突出 长飞光纤（601869.SH） 最新股价：98.23元 日涨幅：+10.00% 最新股价：174.00元 亮点：全球光纤光缆行业领先企业，拥有国内该行业唯一国家重点实验室，形成光通信相关产品及服务 一体化产业链 奕东电子（301123.SZ） 最新股价：52.78元 日涨幅：+20.01% 亮点：光通信组件属连接器零组件类产品，具备固定、散热等功能，终端应用于通讯基站、数据中心等 领域 中瓷电子（003031.SZ） 最新股价：74.88元 日涨幅：+10.00% 亮点：国内规模最大的高端电子陶瓷外壳制造商，产品涵盖光通信 ...

| 600869 | 远东股 | 3.05 | 1.95 | 1394.17 | 4.19 | | --- | --- | --- | --- | --- | --- | | | 份 | | | | | | 300557 | 理工光 | 5.74 | 12.1 1 | 1357.51 | 2.94 | | | 科 | | | | | | 300757 | 罗博特 科 | 4.44 | 3.97 | 1231.14 | 0.99 | | 300565 | 科信技 术 | 5.08 | 12.47 | 1201.86 | 3.34 | | 603386 | 骏亚科 技 | -0.46 | 9.25 | 882.74 | 1.99 | | 688518 | 联赢激 光 | 2.24 | 2.22 | 776.92 | 4.69 | | 688143 | 长盈通 | 5.95 | 7.64 | 768.62 | 1.87 | | 301517 | 陕西华 | 2.49 | 15.90 | 477.65 | 0.50 | | | 达 | | | | | | 300398 | 飞凯材 料 | -1.20 | 5.03 | ...

Market Overview and Sector Characteristics - The Shanghai Composite Index closed up by 1.19%, while the Shenzhen Component Index fell by 2.40%, with the median change in A-shares being an increase of 0.61% [1] - A total of 49 stocks hit the daily limit up, an increase of 7 from the previous day, while 19 stocks hit the limit down, an increase of 4 [2] Industry Characteristics - The sectors with the most limit-up stocks today were communication equipment, specialized equipment, and general equipment [3] - In the communication equipment sector, 5 stocks reached the limit up, driven by accelerated 5G construction and AI computing demand [4] - The specialized equipment sector saw 4 stocks limit up, supported by policy backing and recovering orders [4] - The general equipment sector had 3 stocks limit up, boosted by policy support for equipment upgrades and enhanced manufacturing recovery expectations [4] Concept Characteristics - The most represented concepts among limit-up stocks were optical communication, liquid cooling servers, and consumer sectors [5] - In the optical communication concept, 7 stocks hit the limit up, benefiting from the explosive demand for AI computing and the acceleration of 800G optical module shipments [5] - The liquid cooling server concept also had 7 stocks limit up, as liquid cooling technology becomes the mainstream solution for heat dissipation due to AI computing demand [5] - The consumer sector had 6 stocks limit up, supported by policy stimulus and the year-end consumption peak, with strong expectations for consumer potential [5] Limit-Up Stock List - Among the limit-up stocks, 3 reached historical highs, including Yingweike, Ping An Electric, and Huanxu Electronics [6] - 10 stocks reached near one-year highs, including Shengtong Energy, Jiamei Packaging, and others [7][8] Main Capital Flow - The top 5 stocks with the highest net inflow of main capital among limit-up stocks were Yingweike, Guojiji Heavy Industry, Guangxun Technology, ShenNan Circuit, and Meinian Health [9][10] - The stocks with the highest net inflow as a percentage of market value included Wangzi New Materials, Nanjing Business Travel, and others [10] Continuous Limit-Up Situation - There were 41 first-limit stocks today, with 5 stocks achieving a second limit up and 3 stocks achieving three or more consecutive limit ups [11] - The top 5 stocks with the most consecutive limit ups included Baida Group, Shengtong Energy, and others [11]

Group 1 - The company, Tongding Interconnection Information Co., Ltd., will participate in the "2025 Suzhou Listed Companies Investor Collective Reception Day" to enhance interaction with investors [1] - The event will be held online on December 2, 2025, from 15:30 to 17:00, allowing investors to engage through various platforms [1] - The company's board secretary, Mr. Lu Kai, will represent the company during the event, and company executives will communicate with investors [1]

届时公司高管将在线与投资者进行沟通与交流，欢迎广大投资者踊跃参与！ 特此公告。 通鼎互联信息股份有限公司董事会 证券代码：002491 证券简称：通鼎互联 公告编号：2025-065 2025 年 11 月 29 日 通鼎互联信息股份有限公司 关于参加 2025 苏州上市公司投资者集体接待日活动的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚 假记载、误导性陈述或重大遗漏。 为进一步加强与投资者的互动交流，通鼎互联信息股份有限公司（以下简称 "公司"）将参加"2025 苏州上市公司投资者集体接待日"活动，现将相关事项 公告如下： 出席本次投资者集体接待日活动的人员有：公司董事会秘书陆凯先生。本次 活动将采用网络远程的方式举行，投资者可登录"全景路演"（http://rs.p5w.net）， 或关注微信公众号：全景财经，或下载全景路演 APP，参与本次互动交流，活动 时间为 2025 年 12 月 2 日（星期二，15:30-17:00）。 ...

Core Viewpoint - The leakage cable industry is a significant segment of the cable sector, focusing on the production of specialized cables with signal transmission and antenna functions, experiencing continuous growth due to rapid advancements in mobile communication and rail transit sectors, supported by favorable national policies [1][9]. Industry Overview - Leakage cables, also known as leakage coaxial cables, are designed with periodic slots in the outer conductor, allowing electromagnetic wave transmission and radiation, making them essential for wireless communication in confined spaces like subways and tunnels [3][4]. - The leakage cable market in China reached a size of 2.9 billion yuan in 2019, projected to grow to 6.21 billion yuan by 2024, with a compound annual growth rate (CAGR) of 16.4% [1][10]. Industry Chain - The leakage cable industry consists of three main segments: upstream (raw material suppliers), midstream (manufacturing), and downstream (application fields). The upstream includes suppliers of metals like copper and aluminum, while the midstream focuses on the production processes, and the downstream involves applications in various sectors such as transportation and security [6][7]. - Copper is the primary raw material for leakage cables, with China's copper production maintaining over 20 million tons annually. In 2023, copper production decreased by 3.04%, but is expected to rebound by 6.01% in 2024 [7]. Market Dynamics - The urban rail transit sector is a major application area for leakage cables, with the total operational mileage of urban rail transit in China expected to increase from 7,973.41 kilometers in 2020 to 12,160.77 kilometers by 2024, enhancing the demand for reliable signal systems [8][9]. - Domestic companies like Zhongtian Technology and Tongding Interconnection have made significant technological advancements, breaking foreign monopolies in high-end leakage cable markets [11]. Development Trends - High performance is a key future trend, with leakage cables expected to evolve towards higher transmission rates, lower losses, and stronger anti-interference capabilities, particularly to meet the demands of 5G technology [14]. - The application scenarios for leakage cables are diversifying beyond traditional uses, with emerging areas such as smart mining and emergency communications gaining traction [15]. - Industry consolidation is anticipated, with leading companies likely to integrate vertically to control raw material supply and expand their market presence through strategic partnerships and acquisitions [16].