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CHANGZHOU LANGBO SEALING TECHNOLOGIES CO.,LTD. — Investor Relations & Filings

Ticker · 603655 Shanghai Stock Exchange Manufacturing
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Filings indexed 659 across all filing types
Latest filing 2026-04-27 Governance Information
Country CN China
Listing Shanghai Stock Exchange 603655

About CHANGZHOU LANGBO SEALING TECHNOLOGIES CO.,LTD.

Changzhou Langbo Sealing Technologies Co., Ltd. specializes in the research, development, and manufacturing of high-performance rubber sealing products. The company's portfolio includes precision O-rings, gaskets, and specialized seals designed for automotive air conditioning compressors, braking systems, and engine components. Utilizing advanced materials such as EPDM, NBR, and fluororubber, the firm provides sealing solutions that meet rigorous technical standards for durability and pressure resistance. Its production processes incorporate automated molding and testing technologies to ensure high precision and consistency. Serving primarily as a supplier to the automotive industry and household appliance manufacturers, the company focuses on technical innovation and quality management systems to support global supply chains and specialized industrial applications.

Recent filings

Filing Released Lang Actions
董事会关于2025年度独立董事独立性情况的专项意见
Governance Information Classification · 1% confidence The document is a formal Board of Directors’ special opinion on the independence of the company’s independent directors, issued in compliance with listing rules and governance guidelines. It does not announce changes in personnel (so not MANG) nor is it an earnings or regulatory financial report. Instead, it relates to corporate governance practices and internal oversight of director independence, fitting the Governance Information (CGR) category.
2026-04-27 Chinese
2025年度独立董事述职报告（吉庆敏）
Regulatory Filings
2026-04-27 Chinese
关于变更持续督导保荐代表人的公告
Regulatory Filings Classification · 1% confidence The document is an official corporate announcement regarding the change of continuous supervision sponsor representatives (保荐代表人) for an IPO project. It is a compliance/ regulatory disclosure notice required by the exchange rather than a full financial report, management discussion, dividend notice, or share issuance. It does not concern changes in the company’s board or senior management directly but is a sponsor compliance update. Thus this falls under the general "Regulatory Filings (RNS)" category as a compliance/regulatory announcement.
2026-04-22 Chinese
关于变更持续督导保荐代表人的公告
Regulatory Filings
2026-04-08 Chinese
关于使用部分闲置募集资金进行现金管理到期赎回的公告
Regulatory Filings
2026-03-31 Chinese
关于通过高新技术企业重新认定的公告
Regulatory Filings
2026-03-18 Chinese

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