证券代码：300597 证券简称：吉大通信 公告编号：2025-046 吉林吉大通信设计院股份有限公司 关于变更会计师事务所的公告 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。 2、原聘任会计师事务所名称：大信会计师事务所（特殊普通合伙）（以下 简称"大信"）。 3、变更会计师事务所的原因：鉴于大信会计师事务所已连续多年为公司提 供审计服务，为更好地保证审计工作的独立性与客观性，经综合评估及审慎研究， 拟变更会计师事务所，聘任大华会计师事务所担任公司 2025 年度财务报告及内 部控制审计机构。公司已就变更会计师事务所的相关事宜与大信会计师事务所进 行了沟通，大信会计师事务所对此无异议。本次拟变更会计师事务所事项符合《国 有企业、上市公司选聘会计师事务所管理办法》《公司章程》等有关规定。 4、公司董事会、审计委员会对本次拟变更会计师事务所事项无异议。 2025 年 11 月 21 日，公司召开了第五届董事会 2025 年第八次会议，审议通 过了《关于变更会计师事务所的议案》，同意聘请大华为公司 2025 年度财务报 告及内部控制审计机构，本事项尚需提交公司股 ...

证券代码：300597 证券简称：吉大通信 公告编号：2025-048 吉林吉大通信设计院股份有限公司 关于召开 2025 年第三次临时股东会的通知 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。 一、召开会议的基本情况 1、股东会届次：2025 年第三次临时股东会 2、股东会的召集人：董事会 3、本次会议的召集、召开符合《中华人民共和国公司法》《深圳证券交易所创业板 股票上市规则》《深圳证券交易所上市公司自律监管指引第 2 号—创业板上市公司规范运 作》等法律、行政法规、部门规章、规范性文件及《公司章程》的有关规定。 4、会议时间： （1）现场会议时间：2025 年 12 月 08 日 14:00 （2）网络投票时间：通过深圳证券交易所系统进行网络投票的具体时间为 2025 年 12 月 08 日 9:15-9:25，9:30-11:30，13:00-15:00；通过深圳证券交易所互联网投票系统投 票的具体时间为 2025 年 12 月 08 日 9:15 至 15:00 的任意时间。 5、会议的召开方式：现场表决与网络投票相结合。 6、会议的股权登记日：2 ...

证券代码：300597 证券简称：吉大通信 公告编号：2025-045 吉林吉大通信设计院股份有限公司 第五届董事会2025年第八次会议决议公告 本公司及董事会全体成员保证信息披露内容的真实、准确和完整，没有虚假 记载、误导性陈述或重大遗漏。 吉林吉大通信设计院股份有限公司（以下简称"公司"）第五届董事会 2025 年第八次会议于 2025 年 11 月 21 日上午以现场及通讯的方式召开。公司于 2025 年 11 月 17 日以通讯方式通知了全体董事，本次会议应出席董事 11 名，实际出 席董事 11 名。本次会议的召集和召开符合《中华人民共和国公司法》等法律、 法规及《公司章程》的规定。会议由董事长周伟先生主持。与会董事经过认真审 议，通过以下议案： 经全体董事审议，11 票赞成、0 票反对、0 票弃权。 鉴于大信会计师事务所(特殊普通合伙)已连续多年为公司提供审计服务，为 更好地保证审计工作的独立性与客观性，按照《国有企业、上市公司选聘会计师 事务所管理办法》等有关规定，经审慎研究，公司聘任大华会计师事务所(特殊 普通合伙)为公司 2025 年度财务报告及内部控制审计机构，自公司 2025 年第三 次 ...

Core Viewpoint - Jida Communication (300597) reported that as of November 20, 2025, the combined number of ordinary account holders and margin trading credit account holders is 20,237 [1] Summary by Relevant Sections - Company Information - Jida Communication has disclosed the number of account holders, indicating a total of 20,237 as of the specified date [1]

Core Viewpoint - Jilin Jida Communication has signed a strategic cooperation agreement with the Zhongyi Aging Development Center to enhance elderly care services through technology and innovation [1] Group 1: Strategic Cooperation - The strategic cooperation aims to explore elderly care-related businesses and promote smart canteen solutions [1] - Both parties will leverage their respective advantages to create model projects for "Internet + Smart Health Elderly Dining" in various settings such as nursing homes and community canteens [1] Group 2: Company Background - Jilin Jida Communication was established in April 1985 and listed on the Shenzhen Stock Exchange's Growth Enterprise Market in January 2017 [1] - The company is headquartered in Changchun, Jilin Province, and is controlled by Jilin University [1] Group 3: Future Plans - The company is scheduled to participate in the national "Assisting the Elderly Action" launch event in October 2025 to showcase its products aimed at innovating elderly care services [1]

Core Viewpoint - Jilin Jida Communication experienced a stock price decline of 2.04% on November 19, with a current price of 9.60 CNY per share and a market capitalization of 2.617 billion CNY [1] Group 1: Stock Performance - The stock price of Jilin Jida Communication has increased by 9.76% year-to-date, but has seen a slight decline of 0.21% over the last five trading days [1] - Over the past 20 days, the stock has risen by 4.69%, while it has decreased by 5.60% over the last 60 days [1] Group 2: Financial Performance - For the period from January to September 2025, Jilin Jida Communication reported a revenue of 315 million CNY, representing a year-on-year decrease of 12.29% [2] - The company recorded a net profit attributable to shareholders of -28.21 million CNY, a significant decline of 436.06% compared to the previous year [2] Group 3: Shareholder Information - As of November 10, the number of shareholders for Jilin Jida Communication was 19,900, a decrease of 2.04% from the previous period [2] - The average number of tradable shares per shareholder increased by 2.08% to 13,633 shares [2] Group 4: Dividend Information - Since its A-share listing, Jilin Jida Communication has distributed a total of 40.08 million CNY in dividends, with 8.40 million CNY distributed over the last three years [3] Group 5: Institutional Holdings - As of September 30, 2025, the top ten circulating shareholders included Nuoan Multi-Strategy Mixed A, which holds 1.6102 million shares as a new shareholder [3] - Dachen Zhongzheng 360 Internet+ Index A has exited the list of the top ten circulating shareholders [3]

由于原保荐代表人夏韬因工作变动，无法继续从事对公司的持续督导工作。 为保证持续督导工作的有序进行，国泰海通现委派保荐代表人吕晓伟（简历详见 附件）接替夏韬继续履行持续督导工作。 证券代码：300597 证券简称：吉大通信 公告编号：2025-044 吉林吉大通信设计院股份有限公司 关于更换持续督导保荐代表人的公告 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。 吉林吉大通信设计院股份有限公司（以下简称"公司"）于近日收到国泰海 通证券股份有限公司（以下简称"国泰海通"）出具的《关于更换吉林吉大通信 设计院股份有限公司持续督导保荐代表人的函》。国泰海通作为公司向特定对象 发行股票项目的保荐机构，指定韩节高、夏韬为公司向特定对象发行股票项目保 荐代表人，负责保荐工作及持续督导工作，持续督导期已于 2024 年 12 月 31 日 届满。但截至目前，公司募集资金尚未使用完毕，根据相关规定，国泰海通对此 未尽事项继续履行持续督导义务。 本次保荐代表人变更后，公司向特定对象发行股票项目持续督导保荐代表人 为韩节高、吕晓伟。 特此公告。 吉林吉大通信设计院股份有限公司 董 ...

Market Overview - The communication services sector experienced a slight decline of 0.09% on November 12, with Zhongbei Communication leading the drop [1] - The Shanghai Composite Index closed at 4000.14, down 0.07%, while the Shenzhen Component Index closed at 13240.62, down 0.36% [1] Stock Performance - Notable gainers in the communication services sector included: - Online and Offline (code: 6660008) with a closing price of 154.12, up 7.03% and a trading volume of 127,100 shares, totaling 1.927 billion yuan [1] - Sanwei Communication (code: 002115) closed at 12.12, up 4.12% with a trading volume of 1.3922 million shares, totaling 1.649 billion yuan [1] - Major decliners included: - Zhongbei Communication (code: 603220) closed at 23.43, down 3.42% with a trading volume of 138,800 shares, totaling 326 million yuan [2] - Jialin Technology (code: 603206) closed at 16.00, down 2.91% with a trading volume of 47,400 shares, totaling 76.815 million yuan [2] Capital Flow - The communication services sector saw a net outflow of 556 million yuan from institutional investors, while retail investors contributed a net inflow of 435 million yuan [2][3] - Key stocks with significant capital flow included: - Sanwei Communication had a net inflow of 15.3 million yuan from institutional investors, but a net outflow of 76.58 million yuan from retail investors [3] - China Mobile experienced a net inflow of 13.7 million yuan from institutional investors, with a net outflow of 99.74 million yuan from retail investors [3]

Group 1 - The core point of the article is that Jida Communication has reported the number of holders of combined ordinary accounts and margin trading credit accounts as of November 10, 2025, which stands at 19,905 [2]

Core Viewpoint - Jida Communication announced on November 6 that it will strictly adhere to relevant regulations for timely disclosure of any merger, acquisition, or strategic cooperation plans [2] Group 1 - The company confirmed its commitment to transparency regarding potential mergers and acquisitions [2] - Jida Communication emphasized the importance of following regulatory requirements in its disclosure practices [2]