河南省力量钻石股份有限公司 简式权益变动报告书 上市公司名称：河南省力量钻石股份有限公司 股票上市地点：深圳证券交易所 股票简称：力量钻石 股票代码：301071 信息披露义务人名称 1：商丘汇力金刚石科技服务中心（有限合伙） 住所/通讯地址：柘城县工业大道博地小区 3 号楼 信息披露义务人名称 2：邵增明 股份变动性质：股份减少（通过证券交易所的大宗交易） 签署日期：2025 年 9 月 9 日 1 信息披露义务人声明 一、信息披露义务人依据《中华人民共和国公司法》《中华人民共和国证券 法》《上市公司收购管理办法》《公开发行证券的公司信息披露内容与格式准则 第15号-权益变动报告书》及相关法律、法规和规范性文件编写本报告。 二、信息披露义务人签署本报告已获得必要的授权和批准。 三、依据《中华人民共和国公司法》《中华人民共和国证券法》《上市公司 收购管理办法》《公开发行证券的公司信息披露内容与格式准则第15号-权益变 动报告书》的规定，本报告已全面披露了信息披露义务人在河南省力量钻石股份 有限公司拥有权益的股份变动情况。截至本报告签署之日，除本报告披露的持股 信息外，信息披露义务人没有通过任何其他方式增加或减 ...

Summary of Key Points Core Viewpoint - On September 9, 2023, Power Diamond experienced significant trading activity on the block trading platform, with a total transaction volume of 2.752 million shares and a transaction value of 67.1213 million yuan, reflecting a discount of 18.65% compared to the closing price of the day [2]. Trading Activity - The average transaction price was 24.39 yuan, which is 18.65% lower than the closing price of 29.98 yuan on the same day [2]. - The stock closed down by 1.67% on that day, with a turnover rate of 1.83% and a total trading volume of 108 million yuan [2]. - There was a net outflow of 7.6576 million yuan in main funds throughout the day, and over the past five days, the stock has seen a cumulative increase of 1.97% with a total net outflow of 30.4043 million yuan [2]. Margin Financing Data - The latest margin financing balance for Power Diamond is 313 million yuan, which has decreased by 22.775 million yuan over the past five days, representing a decline of 6.77% [2].

Group 1 - The A-share market has seen a rise in concept stocks related to cultivated diamonds, with notable increases in share prices for several companies [1] - Jing Sheng Mechanical & Electrical has surged over 16%, while Guoji Precision Engineering hit the daily limit with a 10% increase [1] - Other companies such as Huifeng Diamond, Mankalon, Power Diamond, and Huanghe Xunfeng also experienced gains [1] Group 2 - Detailed stock performance shows Jing Sheng Mechanical & Electrical with a 16.22% increase and a total market value of 45 billion [2] - Guoji Precision Engineering has a 10% increase and a market value of 18.3 billion, with a year-to-date increase of 146.73% [2] - Other companies like Huifeng Diamond and Mankalon have shown mixed performance, with Huifeng down 23.52% year-to-date [2]

Group 1 - Guojijinggong reached the daily limit increase, indicating strong market interest [1] - Jingsheng Jidian surged over 15%, reflecting positive investor sentiment [1] - Guoli Co. increased by over 5%, showing a favorable trend in stock performance [1] Group 2 - Huifeng Diamond, Mankalon, and Power Diamond also experienced upward movement, suggesting a broader rally in the sector [1]

Group 1 - The A-share market has seen a rise in companies related to lab-grown diamonds, with notable increases in stock prices for several firms [1] - Jing Sheng Machinery (晶盛机电) experienced a significant increase of 16.22%, bringing its total market capitalization to 45 billion [2] - Guo Ji Precision Engineering (国机精工) reached a 10% increase, with a market cap of 18.3 billion and a year-to-date increase of 146.73% [2] Group 2 - Other companies such as Hui Han Diamond (惠韩钻石) and Man Ka Long (曼卡龙) also saw gains, with increases of 3.50% and 2.77% respectively [2] - Li Liang Diamond (力量钻石) and Huang He Xuan Feng (黄河旋风) had smaller increases of 2.73% and 2.00%, with market caps of 7.74 billion and 6.61 billion respectively [2] - The MACD golden cross signal has formed, indicating a positive trend for these stocks [2]

Group 1 - The core viewpoint of the article highlights the current state and future trends of the non-metallic mineral products industry in China, as reported by Zhiyan Consulting [1] - As of January to July 2025, the number of enterprises in the non-metallic mineral mining and selection industry is 4,002, which represents a decrease of 41 compared to the same period last year, reflecting a year-on-year decline of 1.01% [1] - The proportion of non-metallic mineral mining and selection enterprises in the total industrial enterprises is 0.77% [1] Group 2 - The report indicates that the threshold for large-scale industrial enterprises has been raised from an annual main business income of 5 million to 20 million yuan since 2011 [1] - Zhiyan Consulting is recognized as a leading industry consulting firm in China, providing comprehensive industry research reports, business plans, feasibility studies, and customized services [1] - The consulting firm emphasizes its commitment to delivering quality services and market insights to empower investment decisions [1]

Market Overview - On September 4, the non-metal materials sector declined by 1.71% compared to the previous trading day, with Lianrui New Materials leading the drop [1] - The Shanghai Composite Index closed at 3765.88, down 1.25%, while the Shenzhen Component Index closed at 12118.7, down 2.83% [1] Stock Performance - Notable gainers in the non-metal materials sector included: - Changjiang Materials, up 10.00% to 26.40, with a trading volume of 183,900 shares and a turnover of 470 million yuan [1] - Ningxin New Materials, up 7.58% to 19.88, with a trading volume of 265,300 shares and a turnover of 528 million yuan [1] - Tianma New Materials, up 4.44% to 40.69, with a trading volume of 104,800 shares and a turnover of 419 million yuan [1] - Lianrui New Materials saw a decline of 4.45% to 50.50, with a trading volume of 74,900 shares and a turnover of 385 million yuan [2] Capital Flow - The non-metal materials sector experienced a net inflow of 147 million yuan from institutional investors, while retail investors saw a net outflow of 59.57 million yuan [2] - The capital flow for key stocks showed: - Changjiang Materials had a net inflow of 157 million yuan from institutional investors, while retail investors had a net outflow of 78.39 million yuan [3] - Lianrui New Materials had a net outflow of 17.98 million yuan from institutional investors, with a net inflow of 27.89 million yuan from retail investors [3]

Market Overview - The non-metal materials sector experienced a decline of 1.57% on September 3, with Changjiang Materials leading the drop [1] - The Shanghai Composite Index closed at 3813.56, down 1.16%, while the Shenzhen Component Index closed at 12472.0, down 0.65% [1] Stock Performance - Notable gainers included Ningxin New Materials, which rose by 10.79% to a closing price of 18.48, and Tianma New Materials, which increased by 4.12% to 38.96 [1] - Conversely, Changjiang Materials fell by 5.88% to 24.00, and other stocks like Bingyang Technology and Qilu Huaxin also saw declines of 5.53% and 3.08% respectively [2] Trading Volume and Capital Flow - The non-metal materials sector saw a net inflow of 54.54 million yuan from institutional investors, while retail investors experienced a net outflow of 34.45 million yuan [2] - The trading volume for Ningxin New Materials was 234,800 hands, with a transaction value of 427 million yuan, indicating strong investor interest [1] Individual Stock Capital Flow - Key stocks such as Suotong Development and Longgao Co. had significant capital movements, with Suotong Development seeing a net inflow of 89.68 million yuan from institutional investors [3] - In contrast, Changjiang Materials had a net outflow of 9.39 million yuan from institutional investors, indicating a lack of confidence among larger investors [3]

Core Viewpoint - The Chinese superhard materials industry is accelerating its transformation from traditional grinding tools to high-end fields such as semiconductors and new energy, forming a three-tier product hierarchy of basic materials (HPHT/cBN), functional products (PCD tools), and high-end applications (CVD films), with the semiconductor/optical field growing at an 8% rate, becoming a new growth driver [1][6]. Product Structure - The superhard materials industry in China can be divided into three main levels: basic synthetic materials, functional products, and high-end application materials. Basic synthetic materials include industrial synthetic diamonds (HPHT), cubic boron nitride (cBN), diamond micropowder, and nanodiamonds, which are core raw materials for superhard tools. HPHT diamonds are widely used in grinding and cutting, while cBN is suitable for processing difficult materials like high-temperature alloys. CVD-synthesized diamond single crystals or films are primarily used in high-end electronics and heat dissipation devices [2][3]. Market Trends - The downstream demand for superhard materials in China is showing a trend of diversification and structural upgrading. The metal cutting tool sector still holds the largest share, while precision grinding and photovoltaic silicon wafer cutting are experiencing stable growth. The semiconductor and optical fields are emerging as new engines of growth, indicating a shift from traditional applications to high-tech areas such as semiconductors, consumer electronics, and new energy [6][10]. Supply and Demand Dynamics - The overall production and sales ratio of various segments in the superhard materials industry remains high, indicating a balanced supply-demand relationship. Diamond wire and micropowder products have a production-sales ratio close to 100%, reflecting strong demand in mature application scenarios. PCD/PCBN tools and superhard grinding wheels maintain a ratio of around 95%, showing stable penetration in traditional manufacturing and precision processing. However, the production-sales ratio for CVD diamond films is only 75%, indicating that it is still in the early stages of industrialization [7][10]. Market Composition - The Chinese superhard materials market is characterized by a leading position of industrial diamond micropowder, which accounts for over half of the market share. PCD/PCBN tools, benefiting from the rapid growth in CNC machine tools and new energy vehicle component processing, account for nearly one-fifth of the market. Superhard grinding wheels are used for precision grinding and high-hardness material processing, maintaining stable demand. Although CVD diamond films currently account for less than 10% of the market, their applications in semiconductors, optics, and thermal management are rapidly expanding, making them a high-growth category [10][15].

Group 1 - The cultivated diamond concept index rose by 0.04%, ranking 6th among concept sectors, with five stocks increasing in value, including Mankalon, World, and Chaohongji, which rose by 11.91%, 7.05%, and 4.50% respectively [1][2] - The stocks with the largest declines included *ST Yazhen, Chujian New Materials, and Inno Laser, which fell by 5.00%, 4.02%, and 3.68% respectively [1][2] Group 2 - The cultivated diamond sector experienced a net outflow of 118 million yuan in capital, with six stocks seeing net inflows, led by Mankalon with a net inflow of 84.86 million yuan [2][3] - The net inflow ratios for Mankalon, Chaohongji, and Guojijiang were 6.96%, 4.56%, and 4.07% respectively [3] Group 3 - The trading volume and turnover rates for the top stocks in the cultivated diamond sector were significant, with Mankalon showing a turnover rate of 23.60% and a daily increase of 11.91% [3] - Other notable stocks included Guojijiang with a turnover rate of 7.78% and a slight decrease of 0.97%, and Chaohongji with a turnover rate of 5.42% and an increase of 4.50% [3]