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Shanghai Tunnel Engineering Co.,Ltd. — Investor Relations & Filings

Ticker · 600820 ISIN · CNE000000B83 LEI · 300300MM4YQNHL44T156 Shanghai Stock Exchange Construction
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Filings indexed 1,529 across all filing types
Latest filing 2026-05-18 Regulatory Filings
Country CN China
Listing Shanghai Stock Exchange 600820

About Shanghai Tunnel Engineering Co.,Ltd.

https://www.stec.net/

Shanghai Tunnel Engineering Co., Ltd. (STEC) is a specialized infrastructure enterprise focused on the design, construction, investment, and operation of urban transit and underground engineering projects. The company provides comprehensive solutions for large-scale developments, including tunnels, subways, bridges, and highways. STEC is a pioneer in shield tunneling technology and maintains significant capabilities in the manufacturing of advanced tunnel boring machines (TBMs). Its service portfolio covers the entire project lifecycle, from initial planning and engineering to long-term maintenance and facility management. Operating across major urban centers and international markets, the company leverages technical innovation to address complex challenges in underground space development and the expansion of integrated transportation networks.

Recent filings

Filing Released Lang Actions
上海隧道工程股份有限公司关于召开2025年年度暨2026年第一季度业绩说明会的公告
Regulatory Filings Classification · 30% confidence The document is an announcement by Shanghai Tunnel Engineering Co., Ltd. (‘公司’) regarding the date, time, format, and participation details for the 2025 Annual and 2026 Q1 Performance Briefing Meeting (“业绩说明会”). Key points: - It does not contain any actual financial statements, earnings highlights, or presentation slides. - It is not a transcript of a call (no Q&A content after the event). - It does not provide management’s detailed explanations of results in narrative form. - It simply notifies investors of the upcoming performance briefing and how to join. No specific category exists for a mere call scheduling notice. It falls under general regulatory announcements that do not fit other filing types. Therefore, the correct classification is Regulatory Filings (RNS).
2026-05-18 Chinese
上海隧道工程股份有限公司关于续聘会计师事务所的公告
Audit Report / Information Classification · 95% confidence The document is an announcement regarding the reappointment of an accounting firm (中汇会计师事务所) for the 2026 fiscal year audit and internal control audit. It details the accounting firm's background, personnel, audit fees, and the approval process by the board and audit committee. The document does not contain any actual financial statements or audit results but is a formal notice about the appointment of the auditor and related procedural information. The document length is 2599 characters, which is relatively short and consistent with an announcement rather than a full audit report. Therefore, this document fits the category of an Audit Report / Information announcement, specifically a standalone announcement about auditor appointment and related audit information, not the audit report itself or the annual report.
2026-04-22 Chinese
上海隧道工程股份有限公司2025年年度末期利润分配预案公告
Notice of Dividend Amount Classification · 95% confidence The document is titled as a "2025年年度末期利润分配预案公告" which translates to "2025 Year-end Profit Distribution Plan Announcement." It details the proposed cash dividend per share, total distributable profits, and the board's approval of the profit distribution plan. It includes specific dividend amounts, dates, and references to the company's net profit and retained earnings. The document is an announcement of a profit distribution plan (dividend plan) rather than the actual dividend payment notice or a full financial report. It is not a full annual report or earnings release but a formal announcement regarding dividend distribution plans. Therefore, it fits best under the category of Notice of Dividend Amount (DIV). The document length is 2160 characters, which is relatively short but contains substantive dividend distribution details, not just a brief mention or a link to a report, so it is not a Report Publication Announcement (RPA).
2026-04-22 Chinese
上海隧道工程股份有限公司2025年度内部控制评价报告
Audit Report / Information Classification · 95% confidence The document is titled '2025年度内部控制评价报告' which translates to '2025 Internal Control Evaluation Report'. It discusses the evaluation of the company's internal control effectiveness as of December 31, 2025. The content includes detailed descriptions of internal control scope, standards, defect classifications, and remediation status. It is a comprehensive report on internal control evaluation rather than a brief announcement or certification. The document length is over 5,000 characters and contains substantive content about internal control evaluation results and management responsibilities. This type of report aligns with an Audit Report / Information (AR) category, as it focuses on internal control evaluation and audit opinions related to financial reporting controls, rather than a full annual report or interim financial report. It is not a regulatory filing or announcement of report publication, nor is it a management discussion or earnings release. Therefore, the most appropriate classification is AR (Audit Report / Information).
2026-04-22 Chinese
上海隧道工程股份有限公司2025年度内部控制审计报告
Audit Report / Information Classification · 95% confidence The document is titled as an "内部控制审计报告" which translates to "Internal Control Audit Report." It is issued by a certified public accounting firm and addresses the effectiveness of the company's internal control over financial reporting as of December 31, 2025. The document includes the auditor's responsibility, the company's responsibility, and an audit opinion on internal control effectiveness. It does not contain full financial statements or comprehensive annual or interim financial data but focuses specifically on the audit of internal controls. This matches the definition of an Audit Report / Information (AR), which includes standalone audit reports and applied accounting principles related to internal controls. The document length is 3132 characters, which is sufficient for a standalone audit report but not a full annual or interim report. Therefore, the correct classification is AR with high confidence.
2026-04-22 Chinese
上海隧道工程股份有限公司2025年可持续发展暨环境、社会与治理报告摘要
Environmental & Social Information Classification · 95% confidence The document is titled as a "可持续发展暨环境、社会与治理报告摘要" which translates to "Sustainability and Environmental, Social and Governance (ESG) Report Summary." It covers ESG topics, governance, stakeholder communication, and sustainability strategy for the year 2025. The text references ESG standards such as GRI Standards 2021 and Shanghai Stock Exchange ESG guidelines. It is a detailed report on the company's ESG performance and strategy, not an announcement or a brief summary. The document length is 3966 characters, which is relatively short but the content is substantive and focused on ESG reporting. This matches the definition of an Environmental & Social Information report (SR). It is not an Annual Report, Regulatory Filing, or any other category. Therefore, the correct classification is Environmental & Social Information (SR).
2026-04-22 Chinese

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