独立董事提名人声明与承诺 证券代码：000066 证券简称：中国长城 公告编号：2025-057 中国长城科技集团股份有限公司 中国长城科技集团股份有限公司 2025-057 号公告 提名人中国长城科技集团股份有限公司董事会现就提名张帆为中国长城科 技集团股份有限公司第八届董事会独立董事候选人发表公开声明。被提名人已书 面同意作为中国长城科技集团股份有限公司第八届董事会独立董事候选人（参见 该独立董事候选人声明）。本次提名是在充分了解被提名人职业、学历、职称、 详细的工作经历、全部兼职、有无重大失信等不良记录等情况后作出的，本提名 人认为被提名人符合相关法律、行政法规、部门规章、规范性文件和深圳证券交 易所业务规则对独立董事候选人任职资格及独立性的要求，具体声明并承诺如下 事项： 一、被提名人已经通过中国长城科技集团股份有限公司第八届董事会提名委 员会或者独立董事专门会议资格审查，提名人与被提名人不存在利害关系或者其 他可能影响独立履职情形的密切关系。 √ 是 □ 否 二、被提名人不存在《中华人民共和国公司法》第一百七十八条等规定不得 担任公司董事的情形。 √ 是 □ 否 三、被提名人符合中国证监会《上市公司 ...

证券代码：000066 证券简称：中国长城 公告编号：2025-059 中国长城科技集团股份有限公司 关于召开2025年度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。 中国长城科技集团股份有限公司于 2025 年 12 月 5 日召开第八届董事会第 二十五次会议，审议通过了《关于提议召开 2025 年度第三次临时股东会的议案》， 本次会议的召开符合有关法律、行政法规、部门规章、规范性文件和公司章程的 规定。 现将本次会议的有关事项公告如下： 一、召开会议的基本情况 （一）股东会届次：2025 年度第三次临时股东会 2025 年 12 月 22 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 22 日 9:15 至 15:00 的任意 时间。 （五）会议的召开方式：现场表决与网络投票相结合 公 司 将 通 过 深 圳 证 券 交 易 所 交 易 系 统 和 互 联 网 投 票 系 统 （http://wltp.cninfo.com.cn）向 ...

证券代码：000066 证券简称：中国长城 公告编号：2025-056 中国长城科技集团股份有限公司 第八届董事会第二十五次会议决议公告 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。 中国长城科技集团股份有限公司（以下简称"公司"）第八届董事会第二十 五次会议通知于 2025 年 11 月 28 日以电子邮件方式发出，会议于 2025 年 12 月 5 日在深圳中电长城大厦会议室以现场加视频方式召开，应参加会议董事九名， 亲自出席会议董事九名；符合《公司法》和《公司章程》的有关规定。会议由董 事长戴湘桃先生主持，审议通过了以下议案： 一、关于中原电子收购武汉长光电源外方股权的议案 经董事会审议，同意武汉中原电子集团有限公司收购武汉长光电源有限公司 外方股权，本次投资不构成关联交易。 审议结果：表决票 9 票，同意 9 票，反对 0 票，弃权 0 票，表决通过。 二、关于修订《董事会审计委员会工作条例》的议案 《 董 事 会 审 计 委 员 会 工 作 条 例 》 详 见 公 司 同 日 登 载 于 巨 潮 资 讯 网 http://www.cninfo.co ...

Quantitative Models and Construction Methods 1. Model Name: Liquidity Impact Coefficient Model - **Model Construction Idea**: This model measures the liquidity impact of index adjustments on individual stocks by calculating the ratio of net fund flows to the stock's recent average daily trading volume[12][13] - **Model Construction Process**: The liquidity impact coefficient for a stock is calculated as follows: $$ impact_{i} = \sum_{k=1}^{N} \frac{\Delta weight_{k,i} \times AUM_{k}}{amt\_avg_{i,20}} $$ - \( \Delta weight_{k,i} \): Estimated weight change of stock \( i \) in index \( k \) - \( AUM_{k} \): Total assets under management of passive products tracking index \( k \) as of the end of November - \( amt\_avg_{i,20} \): Average daily trading volume of stock \( i \) over the past 20 trading days as of the end of November[12][13] - **Model Evaluation**: The model provides a quantitative framework to estimate short-term liquidity shocks caused by index adjustments, but it is subject to data discrepancies and assumptions, which may lead to deviations from actual results[13] --- Model Backtesting Results Liquidity Impact Coefficient Model - **Top 5 Stocks with Highest Positive Impact Coefficients**: - Zhangjiagang Bank (002839 CH): 11.55[15] - Jiangzhong Pharmaceutical (600750 CH): 11.44[15] - Tower Group (002233 CH): 11.04[15] - Jichuan Pharmaceutical (600566 CH): 10.14[15] - Zhengbang Technology (002157 CH): 9.99[15] - **Top 5 Stocks with Highest Negative Impact Coefficients**: - Shenzhen Expressway (600548 CH): -24.95[16] - Vanward Electric (002543 CH): -20.90[16] - Aviation Materials (688563 CH): -14.06[16] - Huaxi Biology (688363 CH): -10.81[16] - Ninghu Expressway (600377 CH): -10.54[16] --- Quantitative Factors and Construction Methods 1. Factor Name: Net Fund Flow Factor - **Factor Construction Idea**: This factor estimates the net fund inflow or outflow for stocks due to index adjustments, based on changes in index weights and the total AUM of passive products tracking the index[9][10] - **Factor Construction Process**: - Outflow Amount: Total AUM of linked products multiplied by the stock's actual weight in the index as of the end of November - Inflow Amount: Total AUM of linked products multiplied by the estimated weight of the stock in the index post-adjustment - Weight estimation is based on free-float market capitalization and index-specific weighting rules, such as dividend yield weighting or market capitalization weighting[9][10] - **Factor Evaluation**: The factor provides a transparent and systematic approach to estimate fund flows, but it is sensitive to assumptions about future index weights and AUM changes[9][10] --- Factor Backtesting Results Net Fund Flow Factor - **Top 5 Stocks with Highest Net Fund Inflows**: - Victory Precision (300476 CH): 112.61 billion CNY[10] - Dongshan Precision (002384 CH): 99.32 billion CNY[10] - Guangqi Technology (002625 CH): 77.81 billion CNY[10] - Sugon Information (603019 CH): 65.44 billion CNY[10] - Top Group (601689 CH): 53.07 billion CNY[10] - **Top 5 Stocks with Highest Net Fund Outflows**: - China Mobile (600941 CH): -40.02 billion CNY[11] - CRRC Corporation (601766 CH): -36.40 billion CNY[11] - Aluminum Corporation of China (601600 CH): -34.29 billion CNY[11] - TCL Zhonghuan (002129 CH): -30.07 billion CNY[11] - Huagong Tech (000988 CH): -27.44 billion CNY[11]

Core Viewpoint - The cooperation agreement between China Great Wall Asset Management Beijing Branch and China Resources Asset Management marks an important innovation in revitalizing inefficient assets through collaboration [1] Group 1: Project Overview - The Ma Jiabao project is a shopping center covering over 60,000 square meters located in Fengtai District, Beijing, acquired by China Great Wall Asset Management through judicial debt settlement [1] - The partnership aims to leverage the strengths of both companies to enhance asset value and share operational and disposal profits [1] Group 2: Strategic Importance - This collaboration is a response to the financial service requirements of the real economy and aims to mitigate regional financial risks [1] - The agreement signifies the entry of the Ma Jiabao project into a substantive operational phase, establishing a full-cycle revitalization model from asset debt settlement to operational enhancement and eventual disposal [1] Group 3: Future Cooperation - A framework cooperation agreement was also signed to deepen collaboration in special assets and corporate restructuring, focusing on value creation in the non-performing asset sector [1] - This partnership exemplifies the complementary advantages of both parties and holds significant demonstration value for revitalizing debt assets [1]

Core Viewpoint - The company is focusing on enhancing its system equipment business, particularly in communication, special computing, and marine information technology sectors, while also investing in quantum technology research [1] Group 1: Business Focus - The company's system equipment business is concentrated on communication, special computing, and marine information technology [1] - The company aims to strengthen its capabilities to support the national system equipment business development [1] Group 2: Financial Performance - The revenue from the system equipment business for 2023 is reported to be 429.98 million yuan [1] - The projected revenue for the system equipment business in 2024 is 268.31 million yuan [1] Group 3: Research and Development - The company continues to pay attention to quantum technology and has made certain investments in research and development [1]

证券日报网讯中国长城11月26日在互动平台回答投资者提问时表示，公司下属企业为中国航天事业提供 特种显示设备及载人飞船交互系统。 （文章来源：证券日报） ...

Core Viewpoint - China Great Wall stated that its server products are suitable for various application scenarios, including data storage [2] Company Summary - The company emphasizes the versatility of its server products in multiple applications [2]

Group 1 - The company, China Great Wall (000066), reported that as of November 20, 2025, the number of shareholders is 381,332 [1]

Core Viewpoint - China Great Wall Technology (000066.SZ) indicates that its server products are suitable for various application scenarios, including data storage [1] Group 1 - The company emphasizes the versatility of its server products in multiple applications [1]