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铁大科技 — Investor Relations & Filings

Ticker · 920541 Beijing Stock Exchange Manufacturing
Open in API
Filings indexed 294 across all filing types
Latest filing 2026-04-20 Regulatory Filings
Country CN China
Listing Beijing Stock Exchange 920541

About 铁大科技

http://tddx.com.cn/index.php

Tieda Technology specializes in the research, development, and manufacturing of railway signaling and communication systems. The company provides a comprehensive suite of solutions, including railway signal centralized monitoring, hump signal control, and disaster prevention safety monitoring systems. Its technical portfolio features intelligent operation and maintenance platforms that utilize big data and artificial intelligence to optimize rail safety and efficiency. Serving national rail networks, urban transit systems, and specialized industrial lines, the company focuses on high-reliability equipment designed to meet rigorous safety standards. Tieda Technology integrates advanced information technology with rail infrastructure to facilitate the digital transformation and automated management of transportation networks.

Recent filings

Filing Released Lang Actions
开源证券股份有限公司关于上海铁大电信科技股份有限公司2025年度持续督导定期现场检查报告
Regulatory Filings Classification · 95% confidence The document is titled as a "2025年度持续督导定期现场检查报告" which translates to "2025 Annual Continuous Supervision Regular On-site Inspection Report" by the sponsor (开源证券股份有限公司) for the company 上海铁大电信科技股份有限公司. It references regulatory rules related to the Beijing Stock Exchange and details a comprehensive on-site inspection covering governance, internal controls, shareholder meetings, related party transactions, use of raised funds, and other compliance matters. The document is a detailed inspection report by the sponsor on the company's compliance and governance for the year 2025. It is not an annual report, audit report, or earnings release, nor is it a simple announcement or certification. It is a regulatory compliance and supervision report related to the sponsor's ongoing duties. This type of document fits best under the category "Regulatory Filings (RNS)" as it is a regulatory compliance document that does not fit other specific categories like audit reports or annual reports. The document length is 4499 characters, which is substantive and contains detailed findings, not just an announcement or certification.
2026-04-20 Chinese
2025年度独立董事年度述职报告（薛小平）
Board/Management Information Classification · 95% confidence The document is titled as an "Independent Director's Annual Work Report" for the year 2025 by an independent director of Shanghai Tieda Telecom Technology Co., Ltd. It details the director's qualifications, attendance at board and shareholder meetings, participation in audit committee meetings, supervision activities, communication with auditors, and overall evaluation of the company's governance and financial reporting. The document is a detailed report on the independent director's annual duties and observations rather than a financial report or announcement of voting results. It does not contain financial statements or earnings data, nor is it a proxy solicitation or remuneration report. It is a governance-related report focusing on the independent director's role and activities over the year. Therefore, the most appropriate classification is Board/Management Information (MANG), which covers announcements related to board or senior management activities, including independent director reports.
2026-04-20 Chinese
第四届董事会第二十一次会议决议公告
Board/Management Information Classification · 95% confidence The document is a detailed announcement of the resolutions passed at the 21st meeting of the 4th Board of Directors of Shanghai Tieda Telecom Technology Co., Ltd. It includes multiple agenda items such as approval of the 2025 annual general manager work report, 2025 annual board work report, 2025 annual report and summary, 2025 financial statements and audit report, 2026 financial budget, profit distribution plan, credit application, audit committee reports, independent directors' reports, internal control evaluation, board restructuring, remuneration plans, and other governance matters. The document repeatedly references that the actual reports (e.g., 2025 annual report, audit report, quarterly report) are disclosed separately on the Beijing Stock Exchange website and that these agenda items are to be submitted to the shareholders' meeting for approval. The document itself does not contain the full annual report, financial statements, or audit report but is a formal board meeting resolution announcement summarizing the approval of these reports and other governance matters. This type of document is best classified as Board/Management Information (MANG) because it announces board meeting resolutions, including management and board reports, audit reports, and governance decisions, but is not the reports themselves. The document length (9422 characters) and content support this classification rather than a full Annual Report (10-K) or Audit Report (AR).
2026-04-20 Chinese
2025年度审计报告
Audit Report / Information Classification · 95% confidence The document is titled '审计报告' (Audit Report) for Shanghai Tieda Telecom Technology Co., Ltd. It includes an auditor's opinion, basis for the opinion, key audit matters, and detailed financial statements for the fiscal year ending December 31, 2025. The content includes the auditor's responsibilities, management's responsibilities, and detailed financial data such as balance sheets, income statements, cash flow statements, and equity changes. The document is approximately 15,000 characters long and contains substantive financial data and analysis, not just an announcement or certification. This matches the definition of an Audit Report / Information (AR), which is a standalone audit report including applied accounting principles and audit results, distinct from a full Annual Report (10-K). Therefore, the correct classification is AR with high confidence. FY 2025
2026-04-20 Chinese
2025年年度报告
Annual Report Classification · 100% confidence The document is titled as "年度报告" which translates to "Annual Report" and contains detailed sections typical of an annual report such as company overview, financial data and indicators, management discussion and analysis, major events, shareholder information, financing and profit distribution, board and senior management information, industry information, corporate governance, and full financial accounting reports. It includes audited financial data, management's discussion and analysis, and comprehensive financial statements. The document length is about 15,000 characters, indicating it is a full report rather than a brief announcement. The presence of an auditor's unqualified opinion and detailed financial tables further confirms this is the official yearly report covering company activity and full financial performance. Therefore, the document fits the definition of an Annual Report (10-K). FY 2025
2026-04-20 Chinese
独立董事候选人声明与承诺-薛小平
Board/Management Information Classification · 95% confidence The document is a declaration and commitment statement by an independent director candidate for a company listed on the Beijing Stock Exchange. It details the candidate's qualifications, compliance with relevant laws and regulations, independence criteria, and commitments during the tenure. There are no financial statements, earnings data, or report attachments. The document is a formal announcement related to board/management information, specifically about a director candidate's declaration and commitment. Therefore, it fits best under Board/Management Information (MANG). The document length is short and does not indicate it is an announcement of a report publication or a regulatory filing. Hence, the classification is MANG with high confidence.
2026-04-20 Chinese

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