Core Viewpoint - The financial performance of Power Diamond has shown significant declines in revenue and net profit, indicating potential challenges ahead for the company [2]. Financial Performance - As of June 30, 2025, Power Diamond reported a revenue of 242 million yuan, a year-on-year decrease of 36.43% [2]. - The net profit attributable to shareholders was 25.91 million yuan, reflecting a substantial year-on-year decline of 82.52% [2]. - Cumulative cash dividends since the company's A-share listing amount to 421 million yuan, with 361 million yuan distributed over the past three years [2]. Shareholder and Market Activity - As of September 15, 2023, Power Diamond's stock price decreased by 0.88%, with a trading volume of 327 million yuan [1]. - The number of shareholders decreased by 3.54% to 26,700, while the average number of circulating shares per person increased by 3.67% to 7,282 shares [2]. - The financing balance for Power Diamond was 316 million yuan, accounting for 3.72% of its market capitalization, which is below the 30th percentile level over the past year [1]. Stock Trading and Margin Activity - On September 15, 2023, Power Diamond had a net financing outflow of 3.75 million yuan, with a total financing and margin balance of 318 million yuan [1]. - The company experienced a high level of short selling, with a short balance of 1.24 million yuan, exceeding the 80th percentile level over the past year [1]. - The stock saw 2,400 shares sold short on the same day, amounting to 78,500 yuan based on the closing price [1].

Group 1 - The non-metal materials sector increased by 1.02% compared to the previous trading day, with strength led by diamond stocks [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] Group 2 - In terms of capital flow, the non-metal materials sector experienced a net outflow of 786.22 million yuan from main funds and a net outflow of 1525.68 million yuan from speculative funds, while retail investors saw a net inflow of 2311.9 million yuan [2]

Group 1 - Cultivated diamond concept stocks showed strong performance at the beginning of trading on September 12, with Huanghe Xuanfeng hitting the daily limit up [1] - World rose over 15%, indicating significant investor interest in the cultivated diamond sector [1] - Other companies such as Power Diamond, Huifeng Diamond, and Sifangda also experienced gains, reflecting a broader positive trend in the industry [1]

Market Performance - The non-metal materials sector increased by 2.99% on September 11, with Lianrui New Materials leading the gains [1] - The Shanghai Composite Index closed at 3875.31, up 1.65%, while the Shenzhen Component Index closed at 12979.89, up 3.36% [1] Stock Performance - Lianrui New Materials (688300) closed at 55.04, up 6.34% with a trading volume of 73,300 shares and a turnover of 393 million yuan [1] - Quartz Co. (603688) closed at 38.79, up 4.27% with a trading volume of 173,400 shares and a turnover of 663 million yuan [1] - Strength Diamond (301071) closed at 30.49, up 2.73% with a trading volume of 60,900 shares and a turnover of 184 million yuan [1] - Other notable stocks include Suotong Development (603612) at 27.77, up 2.43%, and Qilu Huaxin (830832) at 8.91, up 1.25% [1] Capital Flow - The non-metal materials sector saw a net inflow of 25.82 million yuan from institutional investors, while retail investors experienced a net outflow of 72.27 million yuan [2][3] - The main capital inflow was observed in Quartz Co. with a net inflow of 35.55 million yuan from institutional investors [3] - Lianrui New Materials experienced a net outflow of 19.01 million yuan from institutional investors [3]

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]