Group 1: Wastewater Resource Utilization - The company focuses on wastewater resource utilization as a core business area, with significant breakthroughs in membrane technology and process innovation [2] - The fifth generation of MBR membrane modules has been developed, with the V-MBR technology achieving independent intellectual property rights and large-scale demonstration projects [2] - A representative project, the Meixi Lake Water Purification Plant, has a design capacity of 250,000 tons/day and was recognized as a national green low-carbon benchmark water plant in 2024 [2] Group 2: Industrial Water Treatment and Seawater Utilization - The company has successfully implemented multiple key projects in industrial water treatment, including projects in Liaoning and Shandong, showcasing its technical strength [3] - In seawater desalination, the company has achieved international leading levels in membrane product technology, with a desalination rate of 99.8% for the UF-RO dual membrane integration technology [3] - The integrated seawater utilization project in Huanghua City has a total investment of over 500 million RMB, combining water intake, pretreatment, desalination, and photovoltaic energy storage systems [3] Group 3: Salt Lake Resource Utilization - The company has made significant progress in salt lake resource utilization, developing six specialized adsorbents/membrane products and five integrated technologies [3] - The lithium extraction project at Zijin Mining's Tibet Arilagocuo Salt Lake has an annual capacity of 20,000 tons of lithium hydroxide, marking a global first for the "titanium-based adsorbent + membrane system" [3] - Future plans include expanding from salt lake resources to industrial valuable resource recovery and comprehensive utilization [3] Group 4: Pharmaceutical Membrane Business - The pharmaceutical membrane business was officially launched in 2023, focusing on life health separation and purification [4] - The company has formed a professional team of over 30 members and achieved breakthroughs in key areas such as protein separation and virus removal [4] - Notable applications include a CAR-T cell therapy project with nearly 100% recovery rate of lentivirus and a project that increased the concentration of traditional Chinese medicine exosomes by 20 times while maintaining 100% active ingredients [5] Group 5: Technology Iteration and Market Competitiveness - The company emphasizes technological innovation, achieving a 25% cost reduction in V-MBR equipment and a production speed increase to 20 meters/min for conventional reverse osmosis membranes [5] - The SC series ultra-pure water reverse osmosis membranes have achieved domestic substitution, enhancing international competitiveness [5] - Strategies to improve market share include large-scale production, benchmark project implementation, and promoting high-margin membrane products [5] Group 6: Accounts Receivable Management - The company is actively addressing accounts receivable issues through various measures, including tailored loss reduction plans and establishing a specialized collection team [5] - Efforts have been made to enhance internal management systems and involve local government debt resolution initiatives [5] - Future plans include optimizing collection strategies and improving internal controls to alleviate accounts receivable pressure [5]

本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 北京碧水源科技股份有限公司（以下简称"公司"）通过中国证券登记结算 有限责任公司深圳分公司（以下简称"结算公司"）系统查询，获悉浙江省宁波 市中级人民法院于京东网司法拍卖网络平台公开拍卖公司持股 5%以上股东文剑 平先生所持公司的 9,675,142 股股票已完成过户登记手续，现将具体情况公告如 下： 一、股东股份被拍卖的基本情况 证券代码：300070 证券简称：碧水源 公告编号：2026-002 北京碧水源科技股份有限公司 关于持股5%以上股东所持公司部分股份司法拍卖 完成过户登记的公告 1. 本次过户登记完成后，文剑平先生仍是公司持股 5%以上的股东，不属于 公司控股股东或实际控制人； 2. 截至本公告披露日，上述文剑平先生被拍卖的 29,675,142 股股票中 20,000,000 股尚未完成过户登记手续； 3. 根据《上市公司股东减持股份管理暂行办法》《深圳证券交易所上市公 司自律监管指引第 18 号——股东及董事、高级管理人员减持股份》等相关规定， 本次拍卖受让方应遵守受让后六个月内不得减持其所受让 ...

证券代码：300070 证券简称：碧水源 公告编号：2026-001 根据《中华人民共和国公司法》《公司章程》等相关规定，本次公司董事辞 职不会导致公司董事会成员低于法定最低人数，亦不会影响公司董事会正常运作， 许爱华女士的辞职报告自送达公司董事会之日起生效，其原定任期届满日为2027 年4月1日。 截至本公告披露日，许爱华女士未持有公司股份。许爱华女士在公司担任董 事期间勤勉尽责，为公司规范运作发挥了积极作用，公司及董事会对许爱华女士 为公司发展所作出的贡献表示衷心的感谢。 特此公告。 北京碧水源科技股份有限公司 董事会 二〇二六年一月十四日 1 北京碧水源科技股份有限公司 关于董事辞职的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 北京碧水源科技股份有限公司（以下简称"公司"）董事会于今日收到公司 董事许爱华女士的书面辞职报告，因个人原因，许爱华女士申请辞去公司董事职 务及相关专门委员会职务，辞职后不在公司担任任何职务。 ...

Group 1 - The core point of the article is that as of December 31, the number of shareholders for the company Biyuan (碧水源) reached 74,184 households [1]

Core Viewpoint - The company aims to enhance its operational performance and shareholder value by focusing on its core business and implementing measures such as optimizing project structure, improving operational efficiency, and strengthening cost control [2] Group 1 - The company will further concentrate on its main business activities [2] - Management is committed to maximizing long-term development and shareholder interests [2] - The company plans to actively promote value enhancement through various initiatives [2]

Group 1 - The company emphasizes the importance of value management and is committed to enhancing its core business operations [2] - The company aims to improve operational efficiency and profitability as part of its strategy for value enhancement [2] - The company is focused on deepening its main business activities to drive overall value growth [2]

Group 1 - The core viewpoint of the news is that Beijing Enterprises Water Group Co., Ltd. (碧水源) has experienced fluctuations in its stock price and financial performance, with a notable decrease in revenue and net profit for the year 2025 [1][2]. - As of January 6, the stock price of碧水源 increased by 2.03% to 4.03 CNY per share, with a total market capitalization of 14.606 billion CNY [1]. - The company reported a year-to-date stock price increase of 2.81%, but a decline of 3.59% over the past 20 days and 8.82% over the past 60 days [1]. Group 2 - For the period from January to September 2025,碧水源 achieved operating revenue of 4.372 billion CNY, a year-on-year decrease of 7.96%, and a net profit attributable to shareholders of -796.355 million CNY, down 85.44% year-on-year [2]. - The company has distributed a total of 1.777 billion CNY in dividends since its A-share listing, with 279 million CNY distributed in the last three years [3]. - As of September 30, 2025, the top ten circulating shareholders of碧水源 included major ETFs, with notable reductions in holdings by several institutional investors [3].

Core Viewpoint - The company has experienced a steady recovery in performance and operational efficiency since completing its mixed-ownership reform in 2022, although a decline in overall performance is expected in 2024 due to environmental factors and the performance of certain affiliated companies [1] Group 1: Performance and Financials - In 2022 and 2023, the company achieved a steady recovery in performance and continuous improvement in operational quality [1] - The overall performance is anticipated to decline in 2024, influenced by environmental factors and the performance of some affiliated companies [1] Group 2: Business Strategy - The company is focused on maintaining stability in its core business and new order signing, while also enhancing certain management indicators and operational quality [1] - The company aims to deepen its core business, improve operational efficiency, and enhance profitability to increase its value and market performance [1] Group 3: Market Factors - The company's stock price fluctuations are influenced by various factors, including market conditions and investor preferences [1]

Group 1 - The company, BWSY, responded to investor inquiries on its interactive platform regarding the collection of accounts receivable, indicating that this information is disclosed in the company's periodic reports [2]

Core Viewpoint - The company aims to enhance its core value by focusing on membrane technology to establish itself as a leading global water service enterprise, emphasizing technological innovation and high-quality development [1] Group 1: Business Strategy - The company is committed to developing an integrated approach that includes membrane material research, membrane equipment manufacturing, and membrane process applications, alongside digital water operations [1] - The company has identified six growth engines: focusing on core responsibilities, maintaining product leadership, increasing market share, improving project management, optimizing asset layout, and strengthening value mechanisms [1] Group 2: Industry Contribution - The company aims to provide technological and industrial support to address issues related to water environment, water resources, and water ecology in urban and rural areas of China [1]