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CSD Water Service Co., Ltd. — Investor Relations & Filings

Ticker · 603903 ISIN · CNE100002YD5 Shanghai Stock Exchange Water supply; sewerage, waste management and remediation activities
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Filings indexed 1,203 across all filing types
Latest filing 2026-05-22 Regulatory Filings
Country CN China
Listing Shanghai Stock Exchange 603903

About CSD Water Service Co., Ltd.

http://www.zchb-water.net/

CSD Water Service Co., Ltd. specializes in comprehensive environmental services, focusing on the investment, construction, and operation of water and wastewater treatment facilities. The company provides integrated solutions for municipal and industrial wastewater treatment, sludge disposal, and water environment restoration. Its core activities include the management of urban sewage treatment plants, industrial park wastewater treatment systems, and rural water environment improvement projects. CSD Water Service utilizes advanced biological treatment technologies and resource recovery processes to enhance water quality and operational efficiency. The company’s service model encompasses various project delivery methods, such as Build-Operate-Transfer (BOT) and Transfer-Operate-Transfer (TOT), aimed at providing sustainable environmental infrastructure and long-term operational management for regional water ecosystems.

Recent filings

Filing Released Lang Actions
中持水务股份有限公司关于召开2025年年度业绩说明会的公告
Regulatory Filings Classification · 82% confidence The document is an announcement (“公告”) of an upcoming 2025 annual performance explanation meeting (业绩说明会) with logistics (time, place, participants) but does not contain any actual financial data, slides, or detailed presentation materials. It is essentially a notice to invite investors to a webcast Q&A session. There is no attached report, transcript, or substantive financial content. Under the taxonomy, such miscellaneous regulatory announcements fall into the fallback category “Regulatory Filings” (RNS).
2026-05-22 Chinese
中持水务股份有限公司2025年年度股东会决议公告
Declaration of Voting Results & Voting Rights Announcements Classification · 95% confidence The document is a formal announcement of the 2025 annual general meeting resolutions of 中持水务股份有限公司, detailing meeting attendance, voting results on each proposal (e.g., approval of the annual report, financial statements, amendments to the articles, profit distribution, appointment of auditors, etc.), and legal confirmations. It does not contain the full annual report or financial statements itself, but instead reports the voting outcomes from the shareholder meeting. This matches the definition of a Declaration of Voting Results & Voting Rights Announcement (DVA).
2026-05-19 Chinese
中持水务股份有限公司第四届董事会第十二次会议决议公告
Board/Management Information Classification · 90% confidence The document is a resolution announcement from the company’s Board of Directors meeting, detailing board procedures and the election of a new legal representative (a senior management change). This matches the description for Board/Management Information.
2026-05-19 Chinese
北京市嘉源律师事务所关于中持水务股份有限公司2025年年度股东会的法律意见书
Declaration of Voting Results & Voting Rights Announcements Classification · 85% confidence The document is a legal opinion letter issued by a law firm on the convening, procedures, attendance, and actual voting results of the 2025 annual shareholders’ meeting. It includes detailed vote tallies for each resolution, serving as the official declaration of voting results from the general meeting. Under the provided taxonomy, “Declaration of Voting Results & Voting Rights Announcements (Code: DVA)” best fits this content, since it reports shareholder vote outcomes.
2026-05-19 Chinese
中国国际金融股份有限公司关于中持水务股份有限公司详式权益变动报告书之2026年第一季度持续督导意见
M&A Activity Classification · 87% confidence The document is a continued supervision opinion (“持续督导意见”) issued by a financial advisor in relation to a detailed equity change report following a takeover of Zhongchi Water Co., Ltd. It reviews the completion of share transfer, changes in control, governance, trustee commitments, and board/management adjustments as part of the acquisition. This clearly relates to an M&A transaction and takeover process rather than a regular financial report or simple announcement, fitting squarely within the M&A Activity category (Code: TAR).
2026-05-15 Chinese
中持水务股份有限公司关于江苏芯长征微电子集团股份有限公司收购公司控制权项目持续督导财务顾问主办人变更的公告
M&A Activity Classification · 90% confidence The document is an announcement regarding changes to the continuous supervision financial advisor principal in a takeover/acquisition project (the acquisition of controlling stake by Jiangsu Xinchangzheng Microelectronics Group). This is clearly related to M&A activity and takeover bids, fitting the ‘M&A Activity’ category.
2026-05-15 Chinese

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