Core Viewpoint - The company Zhongmi Holdings (300470) has indicated that it currently does not have research and development in magnetic liquid sealing, although it has made some technical reserves related to this specialized sealing form [1] Group 1 - Zhongmi Holdings has acknowledged that magnetic liquid sealing is a relatively unique sealing method [1] - The company is not actively engaged in the R&D of magnetic liquid sealing at this time [1] - There are existing technical reserves related to magnetic liquid sealing within the company [1]

Group 1 - The core viewpoint of the news is that Zhongmi Holdings Co., Ltd. has obtained a patent for an "Electric Boost Recovery System," which aims to enhance the stability of the pressure of recycled gas entering the compressor [1] - The patent was granted with the announcement number CN223179095U, and the application date was September 2024 [1] - The electric boost recovery system includes components such as an electric boost pump and a regulating component that adjusts the pump's operation based on the pressure in the intake pipe [1] Group 2 - Zhongmi Holdings Co., Ltd. was established in 1993 and is located in Chengdu, primarily engaged in the general equipment manufacturing industry [2] - The company has a registered capital of 2,079.61737 million RMB [2] - Zhongmi Holdings has made investments in 7 companies and participated in 1,332 bidding projects, holding 202 patents and 8 trademark registrations [2]

Core Viewpoint - Zhongmi Holdings announced the receipt of 9 patent certificates for its subsidiary Youtaike (Suzhou) Sealing Technology Co., Ltd. [2] Company Summary - Zhongmi Holdings has recently received 9 patent certificates, indicating a potential enhancement in its intellectual property portfolio [2] - The patents are likely to strengthen the company's competitive position in the sealing technology industry [2] Industry Summary - The announcement reflects ongoing innovation and development within the sealing technology sector, which may lead to increased market opportunities [2] - The acquisition of patents is a strategic move that could enhance the overall growth prospects of the sealing technology industry [2]

证券代码：300470 证券简称：中密控股 公告编号：2025-031 中密控股股份有限公司 发明专利《一种可控泄漏的油介质、大轴径的核主泵机械密封结构》涉及一 种可控泄漏的油介质、大轴径的核主泵机械密封结构，包括动环组件、盖体组件 和静环组件，动环组件包括轴套和密封动环，盖体组件包括插入环，静环组件包 关于取得专利证书的公告 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。 中密控股股份有限公司（以下简称"中密控股"或"公司"）及控股子公司 优泰科（苏州）密封技术有限公司（以下简称"优泰科"）于近日收到由中华人 民共和国国家知识产权局颁发的9项专利证书，获得形式为原始取得，所涉及技 | 序 | 名称 | 类型 | 专利号 | 专利权人 | 申请日 | 期 限 | | 授权公告日 | | | 备注 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 号 | | | | | | （年） | | | | | | | | 1 | 一种密封环 联动适应 ...

Core Viewpoint - The company, Zhongmi Holdings (300470.SZ), has indicated that its products currently do not have any commercial orders in the aerospace sector [1] Group 1 - The company has communicated with investors through an interactive platform [1] - There is a lack of commercial orders for the company's products in the aerospace field [1]

Group 1 - The company, Zhongmi Holdings (300470.SZ), has indicated that its products can be applied in thorium-based nuclear reactors [1]

Core Viewpoint - The company, Zhongmi Holdings (300470.SZ), has indicated that its products have mature applications in the marine oil and gas extraction and transportation sectors, while deep-sea applications are still in the exploratory phase, resulting in minimal impact on revenue [1] Group 1 - The company's products are well-established in marine oil and gas extraction and transportation [1] - The subsidiary, Youtaike, has limited applications in deep-sea exploration [1] - Demand for the company's products in deep-sea applications is currently low, with negligible effects on revenue [1]

Group 1: Company Involvement in Projects - The company has products applied in major hydropower projects, such as the Baihetan and Wudongde hydropower stations [2][3] - The company is actively monitoring the Yarlung Tsangpo River downstream hydropower project, which has uncertain demand and order volume for the company’s products [3] Group 2: Market Trends and Product Demand - The frequency of seal replacements has not significantly decreased despite economic pressures; however, some clients have shown a slight increase in repair over replacement [3][4] - The value of sealing products is low in the total investment of projects, but timely replacement is crucial for the stable operation of equipment [3] Group 3: Quality and Lifespan of Sealing Products - As the petrochemical industry advances, the quality requirements for sealing products are increasing due to longer maintenance cycles [4] - The average lifespan of sealing products is gradually increasing, but this will have a slow impact on the replacement cycle in the existing market [5]

一、公司新换发《营业执照》具体内容 统一社会信用代码：91510000621607817X 证券代码：300470 证券简称：中密控股 公告编号：2025-030 中密控股股份有限公司 关于完成工商变更登记并换发营业执照的公告 本公司及董事会全体成员保证信息披露内容的真实、准确、 完整，没有虚假记载、误导性陈述或重大遗漏。 中密控股股份有限公司（以下简称"公司"）于 2025 年 4 月 11 日召开第六 届董事会第五次会议、于 2025 年 5 月 7 日召开 2024 年年度股东会，分别审议通 过了《关于注销回购股份暨减少公司注册资本的议案》，具体内容详见公司刊登 在中国证监会指定创业板信息披露媒体巨潮资讯网（http://www.cninfo.com.cn） 的相关公告。 公司于近日完成相关工商变更登记手续，并取得成都市市场监督管理局换发 的《营业执照》。 含特种设备制造）；气压动力机械及元件销售；气压动力机械及元件制造；密封 用填料销售；高性能密封材料销售；高品质合成橡胶销售；数控机床销售；泵及 真空设备制造；泵及真空设备销售。（除依法须经批准的项目外，凭营业执照依 法自主开展经营活动）许可项目：特种 ...

Group 1 - The core viewpoint of the article is that Zhongmi Holdings' subsidiary, Youtaike, is a key supplier of sealing rings for shield tunneling machines in China [1] - Youtaike's clients include China Railway Industry and China Railway Construction Heavy Industry [1]