证券代码：002879 证券简称：长缆科技 公告编号：2025-050 长缆科技集团股份有限公司 关于召开 2025 年第二次临时股东大会的通知 本公司及全体董事会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。 ②通过深圳证券交易所互联网投票系统投票的开始时间为 2025 年 12 月 24 日 9:15，结束时间为 2025 年 12 月 24 日 15:00。 5、会议召开方式 本次股东大会采用现场表决与网络投票相结合的方式召开。 长缆科技集团股份有限公司（以下简称"公司"）于 2025 年 12 月 08 日召开 了公司第五届董事会第十五次会议，公司董事会决定以现场表决与网络投票相结 合的方式召开公司 2025 年第二次临时股东大会（以下简称"本次会议"或者"本次 股东大会"）。现将会议的有关情况通知如下： 一、召开会议的基本情况 1、股东大会届次：长缆科技集团股份有限公司 2025 年第二次临时股东大会 2、股东大会的召集人：公司董事会 3、会议召开的合法、合规性：公司 2025 年 12 月 08 日召开第五届董事会第 十五次会议审议通过了《关于召开 2025 年第二 ...

第五届董事会第十五次会议决议公告 本公司及全体董事会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。 长缆科技集团股份有限公司（以下简称"公司"）第五届董事会第十五次会议 于 2025 年 12 月 08 日在公司会议室以现场及通讯方式召开，会议通知以专人送 达、电子邮件相结合方式于 2025 年 12 月 03 日向各位董事发出。本次会议应参 加董事 9 名，实际参加董事 9 名，本次会议的召开符合《公司法》等有关法律、 法规及《公司章程》的规定。 本次会议由董事长俞涛先生主持，公司高级管理人员列席了会议。经与会董 事审议，形成了如下决议： 证券代码：002879 证券简称：长缆科技 公告编号：2025-048 长缆科技集团股份有限公司 一、审议通过了《关于修订<公司章程>的议案》 根据《公司法》《上市公司章程指引》，结合公司实际情况，由董事会审计委 员会承接并行使监事会的相关职权。同时，为全面贯彻落实最新法律法规要求， 确保公司治理与监管规定保持同步，为进一步完善公司治理结构，规范公司运作， 根据《上市公司章程指引》《上市公司股东会规则》《深圳证券交易所股票上市规 则》《深圳 ...

证券日报网讯 12月5日，长缆科技在互动平台回答投资者提问时表示，关于股东信息及变化的相关内 容，请查看公司定期报告。 （文章来源：证券日报） ...

证券日报网讯12月2日晚间，长缆科技（002879）发布公告称，截至2025年11月30日，公司尚未减持已 回购股份。 ...

证券代码：002879 证券简称：长缆科技 公告编号：2025-047 长缆科技集团股份有限公司 关于回购股份集中竞价减持进展的公告 本公司及全体董事会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。 长缆科技集团股份有限公司（以下简称"公司"）于 2025 年 10 月 27 日召开 了第五届董事会第十四次会议，审议通过了《关于减持公司已回购股份的议案》， 根据公司于 2024 年 2 月 8 日披露的《回购股份报告书》之用途约定，同意公司 通过集中竞价交易方式减持已回购股份，实施期限为自发布减持公告之日起 15 个交易日后的 6 个月内，拟减持回购股份不超过 3,862,152 股（即不超过公司总 股本的 2%），减持价格根据减持时的二级市场价格确定。具体内容详见公司刊登 在巨潮资讯网上（www.cninfo.com.cn）的相关公告。 根据《深圳证券交易所上市公司自律监管指引第 9 号——回购股份》等相关 规定，上市公司采用集中竞价交易方式减持回购股份期间，应当在每个月的前三 个交易日内披露截至上月末的出售进展情况。现将有关情况公告如下： 长缆科技集团股份有限公司董事会 2 ...

Group 1: Company Overview - Long Cable Technology Group Co., Ltd. is identified by stock code 002879 and abbreviated as 长缆科技 [1] Group 2: Investor Relations Activity - The investor relations activity was a specific object survey held on November 18, 2025, from 10:00 to 11:00 in the company meeting room [2] - Participants included Huang Ping (Director, Board Secretary, Financial Responsible Person), Liu Lihong (Securities Affairs Representative), and Shang Danni (IR) [2] Group 3: Product Advantages - Double River Energy has established advantages in the natural ester insulating oil sector, characterized by high flash and fire points, natural biodegradability, low carbon footprint, and strong overload capacity [2] - Successful applications of natural ester insulating oil include the world's first 110kV natural ester transformer and a 180 MW offshore photovoltaic project by the Three Gorges Group [2] Group 4: Research and Development - In 2024, Double River Energy increased R&D investment and participated in a national key technology project for plant-based insulating oil for ultra-high voltage transformers [2] - The company is currently testing its immersion-type insulating cooling liquid, which aims to broaden product variety and enhance market competitiveness [3] Group 5: R&D Achievement Transformation - The company emphasizes the industrial application of R&D achievements, showcasing strong technology transfer capabilities [3] - In 2018, the company successfully developed cross-linked polyethylene insulating power cable accessories for 290/500kV and ±525kV, marking a significant breakthrough in higher voltage levels [3] - In 2022, the company achieved notable success in the national grid's centralized bidding for 330kV-500kV series products, indicating the commercial application of these products in urban power transmission networks [3] Group 6: Industry Competition Landscape - The cable accessory industry exhibits a "pyramid" structure in market competition, with a fragmented landscape in the medium and low voltage segments due to lower technical barriers [3] - In the high voltage cable accessory sector, higher technical barriers lead to increased industry concentration, with major competitors including Changyuan Group, Hancable, and foreign firms like Sumitomo and Prysmian [3] - The company is among the few globally capable of independently developing and producing ultra-high voltage cable accessories, positioning itself alongside international leaders in technology [3]

Core Insights - Long Cable Technology's stock price increased by 2.09% on November 10, reaching 18.56 CNY per share, with a market capitalization of 3.584 billion CNY [1] - The company has seen a year-to-date stock price increase of 25.00% and a 10.87% increase over the last five trading days [1] Financial Performance - For the period from January to September 2025, Long Cable Technology reported a revenue of 1.031 billion CNY, representing a year-on-year growth of 32.21% [2] - The net profit attributable to shareholders was 33.4478 million CNY, which is a decrease of 39.86% compared to the previous year [2] Shareholder Information - As of September 30, the number of shareholders increased by 23.26% to 21,900, while the average number of tradable shares per shareholder decreased by 18.87% to 6,308 shares [2] Dividend Distribution - Long Cable Technology has distributed a total of 292 million CNY in dividends since its A-share listing, with 112 million CNY distributed over the past three years [3]

Group 1 - The core viewpoint of the news is that Changlan Technology has shown a significant increase in stock price and trading activity, indicating positive market sentiment despite some net outflow of funds [1][2] - As of November 6, Changlan Technology's stock price rose by 2.00% to 18.32 CNY per share, with a total market capitalization of 3.538 billion CNY [1] - The company has experienced a year-to-date stock price increase of 23.38%, with notable gains over the past five days (11.64%) and sixty days (14.29%) [1] Group 2 - Changlan Technology operates in the electric equipment sector, specifically in power cable accessories and related products, with a revenue composition that includes transformer insulating oil (35.86%) and various voltage products [1][2] - For the period from January to September 2025, the company reported a revenue of 1.031 billion CNY, reflecting a year-on-year growth of 32.21%, while the net profit attributable to shareholders decreased by 39.86% to 33.4478 million CNY [2] - The company has distributed a total of 292 million CNY in dividends since its A-share listing, with 112 million CNY distributed over the past three years [3]

Core Viewpoint - Changlan Technology's stock price has shown a significant increase this year, with a notable rise in recent trading days, despite a slight decline over the past 20 days [2]. Company Overview - Changlan Technology Group Co., Ltd. is located in Changsha High-tech Development Zone, Hunan Province, and was established on December 23, 1997. The company was listed on July 7, 2017. Its main business involves the research, development, production, sales, and service of power cable accessories and related products [2]. - The company's revenue composition includes: transformer insulating oil (35.86%), other auxiliary products (20.02%), products from 1kV to 35kV (16.35%), products from 66kV to 110kV (12.43%), products from 220kV (12.26%), and products from 320kV to 500kV (3.07%) [2]. - Changlan Technology belongs to the Shenwan industry classification of power equipment - grid equipment - cable components and other. It is associated with concepts such as high-speed rail, rail transit, robotics, liquid cooling, and new infrastructure [2]. Stock Performance - As of November 5, Changlan Technology's stock price increased by 2.05%, reaching 17.40 CNY per share, with a trading volume of 33.22 million CNY and a turnover rate of 1.41%. The total market capitalization is 3.36 billion CNY [1]. - Year-to-date, the stock price has risen by 17.19%, with a 4.32% increase over the last five trading days, a 2.19% decline over the last 20 days, and a 9.37% increase over the last 60 days [2]. Financial Performance - For the period from January to September 2025, Changlan Technology achieved an operating income of 1.031 billion CNY, representing a year-on-year growth of 32.21%. However, the net profit attributable to the parent company was 33.45 million CNY, a year-on-year decrease of 39.86% [2]. - The company has distributed a total of 292 million CNY in dividends since its A-share listing, with 112 million CNY distributed over the past three years [3]. Shareholder Information - As of September 30, the number of shareholders of Changlan Technology is 21,900, an increase of 23.26% compared to the previous period. The average number of circulating shares per person is 6,308, a decrease of 18.87% [2].

Core Points - The Shanghai Composite Index fell by 0.41% to close at 3960.1860 points, while the Shenzhen Component Index dropped by 1.71% to 13175.221 points as of November 4 [1] Group 1: Top Gainers in Hunan Stocks - Changlan Technology opened at 16.740 and closed at 17.050, gaining 1.85% with a highest price of 17.720 and a lowest of 16.690, trading volume was 52,194 lots [2] - Mengjie Co., Ltd. opened at 4.270 and closed at 4.340, increasing by 1.64% with a highest price of 4.380 and a lowest of 4.260, trading volume was 239,327 lots [2] - Hunan Development opened at 13.100 and closed at 13.190, up by 1.46% with a highest price of 13.360 and a lowest of 13.020, trading volume was 247,072 lots [2] - Hunan Investment opened at 5.710 and closed at 5.780, rising by 1.40% with a highest price of 5.790 and a lowest of 5.660, trading volume was 170,367 lots [2] - Tianqiao Hoisting opened at 4.400 and closed at 4.510, increasing by 1.35% with a highest price of 4.530 and a lowest of 4.390, trading volume was 787,041 lots [2] Group 2: Top Losers in Hunan Stocks - Hengli Retreat opened at 0.160 and closed at 0.150, decreasing by 11.76% with a highest price of 0.170 and a lowest of 0.150, trading volume was 611,606 lots [3] - Qidi Pharmaceutical opened at 12.090 and closed at 11.450, down by 5.61% with a highest price of 12.090 and a lowest of 11.430, trading volume was 145,241 lots [3] - Kaimete Gas opened at 23.830 and closed at 23.340, falling by 4.70% with a highest price of 24.290 and a lowest of 23.130, trading volume was 763,116 lots [3] - Hunan Silver opened at 6.280 and closed at 6.130, declining by 3.46% with a highest price of 6.300 and a lowest of 6.090, trading volume was 991,979 lots [3] - Hunan Gold opened at 20.980 and closed at 20.530, decreasing by 3.16% with a highest price of 21.170 and a lowest of 20.260, trading volume was 473,720 lots [3]