Group 1 - The announcement details a change in shareholder equity for Beijing World Diamond Tools Co., Ltd, specifically regarding the reduction of total shares and the impact on the ownership percentage of the actual controller and their concerted actors [2][4] - On August 12, 2025, the company canceled 1,048,828 shares from its second repurchase plan, reducing total shares from 151,997,828 to 150,949,000, which increased the ownership percentage of the actual controller and their concerted actors from 37.00% to 37.26% [2][3] - Between August 26 and September 3, 2025, the actual controller and their concerted actors, Chen Tao and Peng Kun, reduced their holdings by 404,004 shares, decreasing their total shares from 56,239,175 to 55,835,171, and their ownership percentage from 37.26% to 36.99% [2][3] Group 2 - The equity change is part of a previously disclosed share reduction plan and does not trigger a mandatory tender offer [3][4] - The actual controller and their concerted actors did not reduce their holdings, ensuring that the company's control structure remains unchanged and will not significantly impact its governance or ongoing operations [4][5] - The company will continue to monitor shareholder equity changes and fulfill its disclosure obligations in accordance with relevant laws and regulations [5] Group 3 - The announcement also includes information about shareholder Zhang Sulai, who reduced his holdings to below 5%, now holding 7,547,400 shares, which is 5.00% of the current total shares [8][12] - Zhang Sulai's equity change is attributed to both active reduction and passive dilution due to share repurchases and capital increases, with a total dilution of 0.85% during the specified period [9][10] - The company confirms that this equity change does not affect the control of the company and complies with all relevant legal and regulatory requirements [13][14]

证券代码：688028 证券简称：沃尔德 公告编号：2025-037 北京沃尔德金刚石工具股份有限公司 关于持股 5%以上股东减持股份至 5%以下的权益变动提示性公告 股东张苏来保证向北京沃尔德金刚石工具股份有限公司提供的信息内容不存在 任何虚假记载、误导性陈述或者重大遗漏，并对其真实性、准确性和完整性依法承担 法律责任。 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者 重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： ? 本次权益变动属于股份减持及持有股份整体被动稀释，不触及要约收购。 ? 股东张苏来所持股份来源于向特定对象发行股份及以资本公积转增股本 方式取得的股份。本次权益变动后，公司股东张苏来持有股份数量为 7,547,400 股，占公司当前总股本比例为 5.00%。 ? 本次权益变动为持股 5%以上非第一大股东的股份减持及整体被动稀释， 不会导致公司控股股东、实际控制人发生变化。 一、本次权益变动基本情况 信息披露义务人本次权益变动系:一是通过上海证券交易所集中竞价、大宗 交易减持其所持有的公司股份，二是因公司增发股份导致总股本增加后持股比例 被动减 ...

Core Viewpoint - The report outlines the equity change of Beijing World Diamond Tools Co., Ltd., indicating a reduction in shareholding by the information disclosing obligor, Zhang Sulai, to below 5% due to both active selling and passive dilution from company actions [1][2]. Group 1: Shareholding Changes - The information disclosing obligor, Zhang Sulai, held 6,764,933 shares, representing 7.11% of the total shares before the equity change [5]. - After the equity change, Zhang Sulai's shareholding decreased to 7,547,400 shares, which is 5.00% of the total shares [8]. - The reduction in shareholding was due to a combination of active selling and passive dilution from the company's issuance of new shares and share buybacks [5][6]. Group 2: Purpose and Future Plans - The purpose of the equity change was driven by the information disclosing obligor's need for funds, leading to a reduction in shares [4]. - There are no current plans for further buying or selling shares within the next 12 months, but any future actions will comply with relevant legal disclosure requirements [4]. Group 3: Compliance and Legal Statements - The report confirms that the information disclosing obligor has complied with all necessary legal and regulatory requirements regarding the equity change [2][9]. - There are no restrictions on the shares held by the information disclosing obligor, such as pledges or freezes [9].

Core Viewpoint - Wald (688028.SH) announced a reduction in shareholding by its actual controllers, Chen Tao and Peng Kun, indicating a shift in ownership dynamics within the company [1] Shareholding Changes - From August 26, 2025, to September 3, 2025, Chen Tao and Peng Kun collectively reduced their holdings by 404,004 shares, which represents 0.27% of the company's total share capital [1] - The total number of shares held by the actual controllers and their concerted parties decreased from 56,239,175 shares to 55,835,171 shares, resulting in a change in ownership percentage from 37.26% to 36.99% [1] - The equity change triggered a threshold of 1% integer multiple [1]

Summary of Key Points - The company announced that shareholder Zhang Sulai will reduce his holdings through block trades and centralized bidding from December 5, 2024, to September 3, 2025, totaling 1.9235 million shares, which represents 1.27% of the company's current total share capital [1] - During the same period, passive dilution of 0.85% occurred due to factors such as capital increase and share cancellation [1] - After this equity change, Zhang Sulai's remaining shareholding will be 7.5474 million shares, accounting for 5.00%, and he will no longer be a shareholder holding more than 5% of the company [1] - This change in equity does not trigger a mandatory takeover bid [1]

股票上市地点:上海证券交易所 股票简称:沃尔德 北京沃尔德金刚石工具股份有限公司 简式权益变动报告书 上市公司名称:北京沃尔德金刚石工具股份有限公司 股票代码:688028.SH 信息披露义务人:张苏来 住所/通讯地址: 广东省深圳市龙华区建设路 股份变动性质:减少股份(减持)及整体被动稀释持股比例降至 5% 签署日期:2025年9月3日 北京沃尔德金刚石工具股份有限公司简式权益变动报告书 信息披露义务人声明 本部分所述词语或简称与本报告书"释义"所述词语或简称具有相同含义。 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 号一权益变动报告书》等法律、法规和规范性文件编制本报告书。 二、信息披露义务人签署本报告书已获得必要的授权和批准,其履行亦不违 反信息披露义务人公司章程或内部规则中的任何条款,或与之相冲突。 三、依据上述法律法规的规定,本报告书已全面披露了信息披露义务人在北 京沃尔德金刚石工具股份有限公司(以下简称"沃尔德")中拥有权益的股份变 动情况。 截至本报告书签署之日,除本报告书披露的信息外,信息披 ...

证券代码：688028 证券简称：沃尔德 公告编号：2025-038 北京沃尔德金刚石工具股份有限公司 关于股东权益变动触及 1%刻度的提示性公告 实际控制人的一致行动人陈涛、彭坤保证向本公司提供的信息真实、准确、 完整，没有虚假记载、误导性陈述或重大遗漏。 本公司董事会及全体董事保证公告内容与信息披露义务人提供的信息一致。 重要内容提示： | 权益变动方向 | 比例增加□ | 比例减少☑ | | --- | --- | --- | | 权益变动前合计比例 | 37.00% | | | 权益变动后合计比例 | 36.99% | | | 本次变动是否违反已作出的承诺、意向、计划 | 是□ | 否☑ | | 是否触发强制要约收购义务 | 是□ | 否☑ | 一、 信息披露义务人及其一致行动人的基本信息 1.身份类别 | | ☑控股股东/实际控制人及其一致行动人 □其他 5%以上大股东及其一致行动人 | | --- | --- | | 投资者及其一致行动人的身份 | □合并口径第一大股东及其一致行动人（仅适用 | | | 于无控股股东、实际控制人） | | | □其他______________（请注明） | 二、 ...

证券代码：688028 证券简称：沃尔德 公告编号：2025-037 一、本次权益变动基本情况 信息披露义务人本次权益变动系:一是通过上海证券交易所集中竞价、大宗 交易减持其所持有的公司股份，二是因公司增发股份导致总股本增加后持股比例 被动减少，三是因公司注销回购股份导致总股本减少后持股比例被动增加。具体 变动情况如下： 北京沃尔德金刚石工具股份有限公司 关于持股 5%以上股东减持股份至 5%以下的权益变动提示性公告 股东张苏来保证向北京沃尔德金刚石工具股份有限公司提供的信息内容不存在 任何虚假记载、误导性陈述或者重大遗漏，并对其真实性、准确性和完整性依法承担 法律责任。 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者 重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： 本次权益变动属于股份减持及持有股份整体被动稀释，不触及要约收购。 股东张苏来所持股份来源于向特定对象发行股份及以资本公积转增股本 方式取得的股份。本次权益变动后，公司股东张苏来持有股份数量为 7,547,400 股，占公司当前总股本比例为 5.00%。 本次权益变动为持股 5%以上非第一大股东的 ...

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].

高盛首席运营官沃尔德伦出售价值约1360万美元的公司股票。 ...