Core Viewpoint - The A-share market is witnessing a strong performance in synthetic diamond concept stocks, driven by new export controls on superhard materials announced by the Ministry of Commerce and the General Administration of Customs, which are expected to impact the industry both in the short and long term [1] Group 1: Market Performance - Synthetic diamond stocks such as Sifangda surged nearly 17%, Huifeng Diamond rose over 10%, and Huanghe Xuanfeng hit the daily limit with a 10% increase [1] - Other notable performers include Liliang Diamond with a nearly 4% increase, and both Zhongbing Hongjian and Guoji Jinggong rising over 2% [1] Group 2: Regulatory Impact - The Ministry of Commerce and the General Administration of Customs have expanded the scope of export controls on superhard materials, including synthetic diamond micro-powder and single crystals, which highlights the strategic importance of these materials [1] - Although short-term exports may face obstacles, the long-term outlook suggests that these controls will accelerate the consolidation of the domestic superhard materials industry, with prices expected to trend upwards [1] Group 3: Investment Opportunities - CITIC Securities reports that the functional applications of synthetic diamonds are likely to continue to drive demand, presenting trading investment opportunities in the superhard materials sector [1] - Investors are advised to focus on leading companies within this sector as potential beneficiaries of the regulatory changes [1]

Core Viewpoint - The company has experienced a continuous decline in the number of shareholders, indicating potential concerns regarding investor confidence and stock performance [2] Shareholder Information - As of September 30, the number of shareholders for the company was 52,989, a decrease of 3,199 from the previous period (September 20), representing a decline of 5.69% [2] - This marks the third consecutive period of decline in the number of shareholders [2] Stock Performance - The company's closing price was 26.51 yuan, remaining flat, with a cumulative decline of 21.50% in stock price since the concentration of shares began [2] - Over the trading days, the stock experienced one increase and six decreases, including one instance of hitting the daily limit down [2] Financial Performance - For the first half of the year, the company reported total operating revenue of 1.608 billion yuan, reflecting a year-on-year growth of 25.14% [2] - The net profit for the same period was 174 million yuan, showing a year-on-year decrease of 1.69% [2] - The basic earnings per share were 0.3287 yuan, with a weighted average return on equity of 4.56% [2]

证券日报网讯 国机精工（002046）9月30日在互动平台回答投资者提问时表示，公司陶瓷球轴承主要应 用于航天航空以及高速机床等领域。 ...

Core Viewpoint - The stock of Guojijiangong experienced a decline of 2.01% on September 30, with a current price of 26.27 CNY per share, reflecting a significant fluctuation in trading activity and investor sentiment [1] Company Overview - Guojijiangong Group Co., Ltd. is located in Zhengzhou, Henan Province, and was established on December 9, 2001, with its listing date on May 26, 2005. The company specializes in the research, production, and sales of bearings and electric spindles, along with technology development services commissioned by various governmental and corporate entities [2] - The main business revenue composition includes: basic components (29.82%), special and precision bearings (29.40%), machine tools (9.99%), superhard material abrasives (9.99%), supply chain management and services (7.17%), high-end equipment (4.91%), and new materials (2.88%) [2] Financial Performance - As of September 20, the number of shareholders for Guojijiangong was 56,200, a decrease of 2.80% from the previous period, with an average of 9,411 circulating shares per shareholder, an increase of 3.20% [3] - For the first half of 2025, Guojijiangong reported a revenue of 1.608 billion CNY, representing a year-on-year growth of 25.14%, while the net profit attributable to shareholders decreased by 1.69% to 174 million CNY [3] Dividend and Shareholding - Since its A-share listing, Guojijiangong has distributed a total of 513 million CNY in dividends, with 312 million CNY distributed over the past three years [4] - As of June 30, 2025, the top ten circulating shareholders included Hong Kong Central Clearing Limited, which held 2.1 million shares, a decrease of 3.7803 million shares from the previous period [4]

格隆汇9月30日丨国机精工(002046.SZ)在投资者互动平台表示，公司陶瓷球轴承主要应用于航天航空以 及高速机床等领域。 ...

Group 1 - The cultivated diamond concept index declined by 0.44% as of the market close on September 29, ranking among the top decliners in the concept sector [1] - Within the cultivated diamond sector, companies such as Chao Hong Ji and Woerde experienced significant declines, while *ST Yazhen, Guoli Electronics, and Chujian New Materials saw increases of 4.52%, 2.86%, and 1.39% respectively [1] - The cultivated diamond sector experienced a net outflow of 376 million yuan in principal funds today, with 11 stocks seeing net outflows, and 7 stocks exceeding 10 million yuan in outflows [2] Group 2 - The top net outflow stock in the cultivated diamond sector was Guoji Jinggong, with a net outflow of 202 million yuan, followed by Jing Sheng Jidian and Chao Hong Ji with net outflows of 69.44 million yuan and 51.89 million yuan respectively [2] - Conversely, the stocks with the highest net inflows included Guoli Electronics, China Gold, and Yuyuan Shares, with net inflows of 19.02 million yuan, 13.97 million yuan, and 7.69 million yuan respectively [2] - The trading volume for Guoji Jinggong was 7.78%, while *ST Yazhen had a trading volume of 2.18% with a gain of 4.52% [3]

Core Insights - The electric spindle market in China is projected to reach 5.677 billion yuan in 2024, with a year-on-year growth of 7.42% driven by the demand for high-precision and complex part processing in high-end manufacturing sectors such as aerospace, automotive, and electronics [1][6][7] - High-speed, high-precision, and high-power electric spindles have become the mainstream choice in the market, significantly enhancing the overall performance and processing capabilities of CNC machine tools [1][6] Industry Overview - Electric spindles integrate the spindle and motor of machine tools, eliminating the need for gearboxes and achieving a compact structure with advantages such as lightweight and good dynamic characteristics [2] - The electric spindle industry is closely linked to the overall development of the motor industry, which is expected to reach a market size of 798.758 billion yuan in 2024, growing by 0.98% [4] Market Size - The demand for electric spindles is expected to rise in tandem with the growth of the CNC machine tool market, which is projected to reach 432.5 billion yuan in 2024, with a year-on-year increase of 5.75% [6][7] Key Companies - Haozhi Electromechanical is a leading global player in the electric spindle market, with a focus on high-speed and precision grinding spindles, achieving a revenue of 703 million yuan in the first half of 2025, up 14.21% year-on-year [9] - Guojijiang Precision Engineering, part of the China National Machinery Industry Corporation, reported a revenue of 1.608 billion yuan in the first half of 2025, marking a 25.14% increase year-on-year [10] Industry Development Trends 1. **Accelerated Technological Iteration**: The industry is experiencing rapid technological advancements, enhancing product performance through new materials and smart technologies [11] 2. **Expansion of Application Fields**: The demand for electric spindles is growing in traditional sectors and emerging fields such as new energy vehicles and semiconductor equipment, creating new market opportunities [12] 3. **Integration of the Supply Chain**: The industry is moving towards deeper domestic substitution and integration, with leading companies enhancing their market positions through mergers and acquisitions [12]

Industry Transformation - Cultivated diamonds are transitioning from decorative items to critical materials in the tech industry, addressing significant thermal management challenges in semiconductor applications [2] - The global cultivated diamond market is undergoing a silent revolution, with China emerging as the dominant producer, accounting for 60% of global output [2][3] - The acceptance of cultivated diamonds is increasing among consumers, with 43% of post-95s opting for customizable cultivated diamond wedding rings [2] Technological Pathways - The two primary methods for synthesizing cultivated diamonds are High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD), with Chinese companies leading in HPHT production [3] - The HPHT method is particularly suited for producing larger diamonds, while CVD is preferred for high-purity diamonds suitable for semiconductor applications [3] - China's diamond production reached 2 billion carats last year, with gem-quality diamonds exceeding 12 million carats, representing 60% of global production [3] Market Potential - The diamond cooling market is projected to grow from $0.5 million in 2025 to $15.24 billion by 2030, with a compound annual growth rate of 214% [1][10] - The demand for high-performance cooling solutions is driven by the increasing thermal density of chips as the semiconductor industry advances towards smaller nodes [2] Key Companies Overview - Zhongbing Hongjian (中兵红箭) is a leading player in the industry, with a significant market share and advanced technology in diamond synthesis for high-end applications [5] - Huanghe Xuanfeng (黄河旋风) has achieved breakthroughs in CVD technology, producing diamonds over 10 carats and collaborating with universities on thermal management solutions [6] - Power Diamond (力量钻石) is recognized for its cost-effective HPHT production and is actively developing diamond materials for semiconductor cooling [7] - Sifangda (四方达) is expanding into CVD diamond production with a new super factory, aiming to become a major player in the market [8] - Guojijinggong (国机精工) is a dual leader in equipment and materials, benefiting from the industry's expansion cycle with a strong market presence [9] Future Outlook - The cultivated diamond industry is entering a phase of explosive growth, with competition intensifying as companies focus on technology, branding, and policy [10] - The market for diamond cooling solutions is expected to reshape the value chain of the diamond industry and influence the competitive landscape of next-generation computing technologies [10]

Core Viewpoint - The stock of Guojijinggong experienced a significant decline, hitting the daily limit down, with a trading volume of 1.453 billion yuan and a turnover rate of 9.42% [2] Group 1: Trading Activity - The stock's price fell by 8.46%, leading to its inclusion on the Shenzhen Stock Exchange's watch list for price deviation [2] - Institutional investors net sold 4.4014 million yuan, while the Shenzhen Stock Connect saw a net purchase of 89.848 million yuan [2] - The top five trading departments accounted for a total transaction volume of 625 million yuan, with net selling of 181 million yuan [2] Group 2: Institutional Participation - Three institutional special seats were involved in trading, with a total buying amount of 48.9664 million yuan and selling amount of 53.3678 million yuan, resulting in a net sell of 4.4014 million yuan [2] - The Shenzhen Stock Connect was the largest buying department with a purchase of 161.543 million yuan and a selling amount of 70.8063 million yuan, leading to a net purchase of 89.848 million yuan [2] Group 3: Recent Performance - Over the past six months, the stock has appeared on the watch list six times, with an average price increase of 3.72% the day after being listed and an average increase of 8.12% in the following five days [3] - The stock saw a net outflow of 377 million yuan in main funds today, with large orders contributing to a net outflow of 190 million yuan and 187 million yuan respectively [3]

| 序号 | 交易营业部名称 | | | | 买入金额(万) | 占总成交比例 | | --- | --- | --- | --- | --- | --- | --- | | 1 | 中信证券股份有限公司北京总部证券营业部 | 2次 | 50.00% | 2 | 25.85 | 0.02% | | 2 | 华泰证券股份有限公司天津白堤路证券营业部 | 3次 | 33.33% | | 1.16 | 0.00% | | 3 | 深股通专用 | | 794次 46.35% | | 16065.43 | 11.06% | | 4 | 中信证券股份有限公司北京安外大街证券营业部 | 8次 | 37.50% | | 24.39 | 0.02% | | 5 | 机构专用 | 1744次 41.92% | | | 2259.05 | 1.55% | | | (买入前5名与卖出前5名)总合计: | | | | 22245.79 | 15.31% | 国机精工(002046.SZ)今日跌停，换手率9.42%，成交额14.53亿元。龙虎榜数据显示，深股通买入1.61亿元，卖出7081万元，净买入8985万元；游资"呼家 楼"位列卖 ...