Investment Rating - The industry rating is "Overweight" (first-time) [6] Core Insights - The report highlights the acquisition of 100% equity of Henan High Purity Minerals by AnCai High Technology, which occurred in September 2025. This acquisition aims to enhance the production and sales of high-purity quartz materials essential for semiconductor, photovoltaic, and optical fiber communication industries [6] - Quartz Co. has successfully mass-produced and sold various high-end quartz material products, including semiconductor-grade quartz tubes, rods, and ingots, as of November 27, 2025. These products are crucial for key processes in semiconductor manufacturing [6] - The establishment of high-purity quartz as the 174th new mineral type in China, announced in April 2025, signifies a breakthrough in domestic mineral resources, with purity levels not lower than 99.995%. This development is expected to strengthen the resilience and security of the domestic supply chain [6] Summary by Sections - **Recent Industry Performance**: The industry has shown a relative return of 6.65% over the past 12 months, with an absolute return of 23.5% [3] - **Investment Highlights**: The acquisition by AnCai High Technology and the production capabilities of Quartz Co. are pivotal developments, indicating a growing market for high-purity quartz materials [6] - **Market Demand**: High-purity quartz is characterized by its high-temperature resistance, corrosion resistance, low thermal expansion, high insulation, and transparency, making it indispensable for semiconductor and photovoltaic industries [6] - **New Mineral Classification**: The recognition of high-purity quartz as a new mineral type is expected to foster the development of new production capabilities and enhance the domestic supply chain [6]

（文章来源：证券日报） 证券日报网讯 12月23日，凯德石英发布公告称，公司2025年第四次临时股东会审议通过《关于预计 2026年日常性关联交易的议案》等。 ...

（文章来源：证券日报） 证券日报网讯 12月22日晚间，凯德石英发布公告称，容诚作为公司2025年年度财务报表和内部控制的 审计机构，原委派张立志、武毓、张云凤为公司2025年度财务报表审计报告的签字会计师、吴宇为项目 质量复核人员。由于工作调整原因，容诚现委派刘诚、武毓接替张立志、武毓、张云凤作为签字会计 师，吴宇作为项目质量复核人员。本次变更后，为公司提供2025年度审计服务的签字会计师为刘诚、武 毓，项目质量复核人员为吴宇。 ...

（文章来源：每日经济新闻） 每经AI快讯，12月10日，半导体材料板块短线拉升，凯德石英涨超10%，立昂微、西安奕材、恒坤新 材、有研新材、沪硅产业等跟涨。 ...

Group 1 - The core announcement is that Kaide Quartz has appointed Ms. Xu Meng as the new sponsor representative to replace Mr. Li Tongchao for ongoing supervision duties [2] - The appointment is part of the company's commitment to continue fulfilling its ongoing supervisory responsibilities [2] - The announcement was made on the evening of December 3 [2]

Core Viewpoint - The A-share gas sector is experiencing a strong upward trend, with several companies seeing significant stock price increases, indicating positive market sentiment and potential investment opportunities in this industry [1] Company Performance - Shouhua Gas has risen over 15% [1] - Guo Xin Energy, Changchun Gas, Shengli Co., and Yongtai Energy have previously hit the daily limit [1] - Other companies such as Kaitan Gas, Zhongman Petroleum, Houpu Co., and Dongfang Huanyu are also experiencing gains [1]

Core Viewpoint - The A-share gas sector is experiencing a strong upward trend, with several companies seeing significant stock price increases [1] Company Performance - Shouhua Gas has risen over 15% [1] - Guo New Energy, Changchun Gas, Shengli Co., and Yongtai Energy have previously hit the daily limit [1] - Other companies such as Kaitan Gas, Zhongman Petroleum, Houpu Co., and Dongfang Huanyu are also witnessing gains [1]

证券代码：835179 证券简称：凯德石英 公告编号：2025-124 凯德芯贝已于 2025 年 9 月 28 日完成了工商变更登记手续并取得营业执照。 除以上变更外，《营业执照》记载的其他工商登记事项未发生变更，变更后的登 北京凯德石英股份有限公司 关于控股子公司完成工商变更登记并取得营业执照的公告 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记 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个 别及连带法律责任。 一、基本情况 北京凯德石英股份有限公司（以下简称"公司"）控股子公司凯德芯贝（沈 阳）石英有限公司（以下简称"凯德芯贝"）因经营发展需要对住所和经营范围 进行了变更。 2025 年 9 月 28 日，凯德芯贝已完成工商变更登记手续，并取得了沈阳市铁 西区市场监督管理局核发的《营业执照》，具体变更内容如下： | 变更内容 | 变更前 | | 变更后 | | --- | --- | --- | --- | | 住所 | 辽宁省沈阳市苏家屯区桂竹香街 | | 辽宁省沈阳市沈阳经济技术开发区浑 | | | | 68-C2 号 | 河二十街 18 甲 1 号 | | ...

Market Overview - The Shanghai Composite Index is at 3820.93 points, slightly below the five-day moving average, with a change of -0.02% [1] - The total trading volume of A-shares today is 10109.58 billion yuan [1] Stocks Breaking the Five-Day Moving Average - A total of 582 A-shares have surpassed the five-day moving average today [1] - Notable stocks with significant deviation rates include: - Henghe Co., Ltd. with a deviation rate of 20.94% and a daily increase of 29.98% [1] - Shangwei New Materials with a deviation rate of 15.29% and a daily increase of 20.00% [1] - *ST Dongtong with a deviation rate of 12.08% and a daily increase of 14.47% [1] Stocks with Smaller Deviation Rates - Stocks with smaller deviation rates that have just crossed the five-day moving average include: - Hualing Agricultural Industry with a deviation rate of 7.86% and a daily increase of 9.93% [1] - Ganli Pharmaceutical with a deviation rate of 7.59% and a daily increase of 10.00% [1] - Tongfu Microelectronics with a deviation rate of 7.04% and a daily increase of 10.00% [1]

天风证券股份有限公司 关于北京凯德石英股份有限公司 2025年上半年度持续督导跟踪报告 根据《证券发行上市保荐业务管理办法》《北京证券交易所股票上市规则》 （以下简称《上市规则》）等有关法律法规、规范性文件等的规定，天风证券股份有限 公司（以下简称"天风证券"、"保荐机构"）作为北京凯德石英股份有限公司（以 下简称"凯德石英"、"公司"）的保荐机构，负责凯德石英的持续督导工作，并 出具2025年上半年度持续督导跟踪报告。 （一）公司面临的重大风险事项 1、下游行业波动的风险 2 | 项目 | 工作内容 | | --- | --- | | 1、公司信息披露审阅情况 | 保荐机构及时审阅了公司信息披露文件。 | | 2、督导公司建立健全并有效执行 | 持续督导机构查阅公司2025年半年度制定、修订的 | | 规则制度的情况 | 制度文件，督导公司建立健全并有效执行公司治理 | | | 、财务内控和信息披露等制度，本督导期内，凯德 | | | 石英有效执行了规则制度。 | | 3、募集资金使用监督情况 | 保荐机构定期查阅公司募集资金账户对账单，核查 | | | 公司募集资金使用情况；前往公司现场核查募集资 | | ...