According to the Administrative Measures for Information Disclosure of Listed Companies, listed companies, as information disclosure obligors, must truthfully, accurately, timely, and completely disclose legally required and voluntary information to the market. This publicly disclosed information includes but is not limited to basic company information, major accounting data and financial indicators, shareholding structures, executive compensation details, etc. Information disclosure by listed companies serves as a crucial basis for government supervision and investor activities. The effective combination of administrative supervision and market monitoring forms a dual-track effect that promotes the stable and orderly development of the securities market.

    CnOpenData presents the A-share listed company supply chain data, comprising four tables: Listed Companies’ Top Five Customer Summary Table, Listed Companies’ Major Customer Details Table, Listed Companies’ Top Five Supplier Summary Table, and Listed Companies’ Major Supplier Details Table .

Time Coverage

2001-2025

Field Display

Sample Data

Listed Companies’ Top Five Customer Summary Table

Listed Companies’ Major Customer Details Table

Listed Companies’ Top Five Supplier Summary Table

Listed Companies’ Major Supplier Details Table

Related Literature

• Chen T., H. Levy, X. Martin and R. Shalev, 2021, “Buying products from whom you know: personal connections and information asymmetry in supply chain relationships”, Review of Accounting Studies.

Data Update Frequency

Annual update