Skip to main content
铜冠矿建 logo

铜冠矿建 — Investor Relations & Filings

Ticker · 920019 Beijing Stock Exchange Mining and quarrying
Open in API
Filings indexed 179 across all filing types
Latest filing 2025-08-25 Regulatory Filings
Country CN China
Listing Beijing Stock Exchange 920019

About 铜冠矿建

https://www.tltgkj.com/

Tongguan Mine Construction & Engineering Group Co., Ltd. specializes in comprehensive mine construction and production services. The company provides a full suite of engineering solutions, including shaft sinking, tunneling, and underground development for large-scale mining projects. Its core competencies encompass mechanical and electrical equipment installation, mine maintenance, and technical consultancy. Tongguan Mine Construction is recognized for its expertise in handling complex geological challenges and executing ultra-deep shaft projects. Serving both domestic and international markets, the firm focuses on delivering integrated mining operations and infrastructure development, leveraging advanced technology and specialized engineering teams to support the global mineral extraction sector.

Recent filings

Filing Released Lang Actions
拟变更2025年度会计师事务所公告
Regulatory Filings Classification · 95% confidence The document is an announcement regarding the proposed change of the company's auditor for the 2025 fiscal year. It details the new auditor's information, reasons for the change, communication with the previous auditor, and the approval process by the board and audit committee. It does not contain any financial statements or audit reports themselves but rather announces the intention to appoint a new audit firm. The document length is 4075 characters, which is relatively short and consistent with an announcement rather than a full report. Therefore, this fits best under the category of a Regulatory Filing (RNS) as it is a regulatory announcement about auditor change and not the audit report itself or an annual report.
2025-08-25 Chinese
2025年半年度报告摘要
Interim / Quarterly Report Classification · 100% confidence The document is titled as a "半年度报告摘要" which translates to "Half-Year Report Summary" or "Interim Report Summary" for the year 2025. It contains detailed financial data such as total assets, net profit, earnings per share, and other financial metrics for the reporting period and comparisons to previous periods. It also includes company business descriptions, shareholder information, and operational details. The length of the document (11,934 characters) and the presence of substantive financial data and analysis confirm it is a comprehensive financial report for a period shorter than a full fiscal year. Therefore, this document fits the definition of an Interim / Quarterly Report (IR). H1 2025
2025-08-25 Chinese
关于注销部分募集资金专项账户的公告
Capital/Financing Update Classification · 95% confidence The document is an announcement regarding the cancellation of a specific fundraising special account. It details the fundraising amount, the use of funds, the signing of a tripartite supervision agreement, and the closure of a fundraising account. The document is short (1786 characters) and focuses on the status and management of fundraising accounts rather than presenting financial statements or comprehensive financial data. It is not a full financial report but an update on capital management activities related to fundraising. Therefore, it fits best under the category of Capital/Financing Update (CAP).
2025-08-07 Chinese
关于重要合同的进展公告
Regulatory Filings Classification · 95% confidence The document is an announcement regarding the progress of an important contract involving a subsidiary of the company and a temporary suspension of mining operations. It includes financial data of the subsidiary but does not present a full financial report or detailed financial statements. The document is relatively short (1194 characters) and focuses on operational updates and impact assessment rather than comprehensive financial results or management discussion. It is not an annual or interim report, earnings release, or audit report. It is also not related to board changes, voting results, or capital changes. The content fits best with a Regulatory Filing (RNS) as it is a general regulatory announcement about contract progress and operational impact without fitting into more specific categories.
2025-07-24 Chinese
关于取得中标通知书的公告
Capital/Financing Update Classification · 95% confidence The document is an announcement regarding the receipt of a bid-winning notification (中标通知书) for a project contract. It details the project, contract amount, and expected impact on the company. There is no financial report, earnings data, or regulatory certification. The document is a corporate announcement about a contract award, which fits best under Capital/Financing Update (CAP) as it relates to business development and contract acquisition impacting company operations and potential financing implications. The document length is short and it is not a report publication or certification, so RPA or RNS are less appropriate.
2025-07-22 Chinese
关于控股股东及其一致行动人权益变动触及1%整倍数的提示性公告
Major Shareholding Notification Classification · 100% confidence The document is a notification about a change in shareholding by a controlling shareholder and its concerted parties, specifically a reduction in shareholding by 1% or more. It includes detailed information about the shareholder, the number of shares reduced, the percentage change, and confirms that the controlling shareholder and actual controller remain unchanged. The document is titled as a "提示性公告" (prompting announcement) regarding shareholding changes and does not contain financial statements or detailed financial analysis. It is a regulatory announcement about a major shareholding change, fitting the category of Major Shareholding Notification (MRQ). The document length is 3037 characters, which is relatively short and consistent with an announcement rather than a full report.
2025-07-13 Chinese

Browse filings by year

3 years

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.