According to the Administrative Measures for Information Disclosure by Listed Companies (CSRC Order No. 40) promulgated on January 30, 2007, to standardize information disclosure behaviors of issuers, listed companies, and other obligated entities, listed companies shall disclose relevant information in a timely, accurate, and complete manner, including prospectuses, offering circulars, listing announcements, periodic reports, and ad hoc reports.
A timely and accurate corporate announcement can provide investors with signals of negative or positive impacts, influencing real-time markets. Retrospective analysis of historical announcements enables academic research to trace patterns—market reactions, investor sentiment, corporate performance—while in the new media era, market responses to such announcements have become more rapid and intense, all of which can be quantified through big data.
The A-share listed companies' social responsibility report dataset launched by CnOpenData covers comprehensive fields including stock code (股票代码), company name (公司名称), announcement title (公告标题), announcement date (公告时间), category (分类), industry (行业), and reporting year (年度). This dataset provides robust support for research on A-share listed companies and securities markets.
Time Coverage
As of May 2025
Field Display
Sample Data
Relevant Literature
- Zhang Yeqing, Lu Yao, Li Leyun, 2021: "The Impact of Big Data Applications on Chinese Enterprises' Market Value: Evidence from Textual Analysis of Annual Reports of Chinese Listed Companies," Economic Research Journal, No. 12.
Data Update Frequency
Annual updates