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Lanzhou LS Heavy Equipment Co., Ltd — Investor Relations & Filings

Ticker · 603169 Shanghai Stock Exchange Manufacturing
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Filings indexed 1,799 across all filing types
Latest filing 2026-04-22 Audit Report / Informat…
Country CN China
Listing Shanghai Stock Exchange 603169

About Lanzhou LS Heavy Equipment Co., Ltd

Lanzhou LS Heavy Equipment Co., Ltd. specializes in the research, development, design, and manufacture of high-end energy equipment. The company provides integrated solutions for the refining, petrochemical, coal chemical, and nuclear power sectors. Its core product portfolio includes high-pressure reactors, specialized heat exchangers, coal gasifiers, and large-scale pressure vessels. Additionally, the firm has expanded into new energy fields, focusing on hydrogen energy storage and distribution, solar thermal power generation components, and high-end equipment for the photovoltaic industry. With advanced manufacturing facilities and technical expertise in heavy-duty machinery, the company supports large-scale industrial projects through the provision of critical equipment, engineering services, and technical maintenance. It emphasizes technological innovation in material science and manufacturing processes to meet global energy demands.

Recent filings

Filing Released Lang Actions
兰石重装2025年度内部控制评价报告2.0
Audit Report / Information Classification · 1% confidence The document is titled “2025年度内部控制评价报告” and contains a comprehensive internal control evaluation including control objectives, defect assessment criteria, and audit committee oversight. It is a standalone internal control assessment report rather than an announcement or part of the full annual report, and does not fit into earnings releases, management discussions, or governance charters. This corresponds to a standalone audit or internal controls report, matching the “Audit Report / Information (AR)” category.
2026-04-22 Chinese
兰州兰石重型装备股份有限公司2025年度内部控制审计报告
Audit Report / Information Classification · 1% confidence The document is clearly an internal control audit report issued by a registered accounting firm (Reanda) for the fiscal year ending December 31, 2025. It includes audit scope, responsibilities, audit opinion on financial reporting internal controls, and auditor signatures. This matches the definition of a standalone Audit Report / Information and does not represent an annual report, interim report, or mere announcement. Therefore, the correct category is AR (Audit Report / Information).
2026-04-22 Chinese
兰石重装关于召开2025年年度暨2026年一季度业绩说明会的公告
Regulatory Filings Classification · 1% confidence The document is an announcement by 兰州兰石重型装备股份有限公司 regarding the scheduling of its 2025 annual and 2026 Q1 performance presentation/earnings explanation meeting. It provides meeting date, venue, participation method, and Q&A procedures. It does not include the actual earnings release, full presentation materials, or financial data itself. It is not a transcript (CT), not the earnings release (ER), not the report itself (10-K/IR), nor a detailed investor slide deck (IP). Therefore it falls under a general regulatory announcement category for miscellaneous filings: Regulatory Filings (RNS).
2026-04-22 Chinese
利安达会计师事务所关于兰石重装2025年度对以前年度报告披露的财务报表数据由于同一控制下企业合并进行追溯调整的专项报告
Audit Report / Information Classification · 1% confidence The document is an external audit firm’s special report (“专项报告”) on retrospective adjustments of previously disclosed financial statements due to a business combination under common control. It includes audit references, audit report number, scope, and detailed adjustment tables. It is not an annual report or announcement but a standalone audit report. Therefore, it falls under Audit Report / Information (AR).
2026-04-22 Chinese
兰石重装关于召开2025年年度股东会的通知
Proxy Solicitation & Information Statement Classification · 1% confidence The document is a formal notice convening the 2025 Annual General Meeting of shareholders, detailing meeting date, location, agenda items, voting procedures and proxy form instructions. It is sent to shareholders to solicit proxies and provide information on voting. This matches the definition of a Proxy Solicitation & Information Statement rather than presentation materials or the report itself.
2026-04-22 Chinese
兰石重装2025年可持续发展(ESG)报告摘要
Environmental & Social Information Classification · 1% confidence The document is titled “2025年度可持续发展（ESG）报告摘要” and provides detailed Environmental, Social, and Governance disclosures including governance structure, stakeholder engagement, materiality assessment, and ESG topics. This aligns precisely with the definition of Environmental & Social Information (SR). It is not merely an announcement but the actual ESG report summary.
2026-04-22 Chinese

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