Core Points - The announcement pertains to a change in equity ownership by a shareholder of Henan Power Diamond Co., Ltd. [3][4] - The shareholder, Shangqiu Huili Diamond Technology Service Center (Limited Partnership), has reduced its stake from 2.45% to 1.40% of the total share capital [4][5] - This equity change does not involve the company's controlling shareholder or actual controller, and it will not significantly impact the company's ongoing operations [3][5] Summary by Sections Equity Change Details - The equity change was executed through a block trade, resulting in a decrease in the shareholder's ownership percentage [3][4] - Prior to the change, Shangqiu Huili held 6,383,999 shares, all of which were acquired before the company's initial public offering [4][6] Regulatory Compliance - The equity change has been fully disclosed in accordance with the relevant regulations, including the Securities Law of the People's Republic of China [5][6] - The shareholder's reduction of shares complies with previously disclosed plans and has been pre-announced as required [5][6]

证券代码：301071 证券简称：力量钻石 公告编号：2025-042 河南省力量钻石股份有限公司 关于披露简式权益变动报告书的提示性公告 股东商丘汇力金刚石科技服务中心（有限合伙）保证向本公司提供的信 息内容真实、准确、完整，没有虚假记载、误导性陈述或重大遗漏。 本公司及董事会全体成员保证公告内容与信息披露义务人提供的信息一 致。 特别提示： 1、本次权益变动不涉及公司控股股东、实际控制人，不会导致公司控股股 东及实际控制人发生变化，不会对公司持续经营产生重大影响。 2、本次权益变动为股东通过大宗交易方式主动减持，权益变动后，公司股 东商丘汇力金刚石科技服务中心（有限合伙）（以下简称"商丘汇力"）持有河南 省力量钻石股份有限公司（以下简称"公司"）总股本的股份比例降至1.40%，占 剔除公司回购专用账户股份后总股本比例的1.43%。 3、本次权益变动性质为股份减少，不触及要约收购。 公司于近日收到股东商丘汇力出具的《简式权益变动报告书》，截至本公告 披露日，商丘汇力因减持公司股份，持股比例由2.45%（剔除公司回购专用账户 股份后比例2.51%）减少至1.40%（剔除公司回购专用账户股份后比例1.43%）， ...

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]