There are two main types of plate classification: industry classification and concept classification.
1, industry sector classification: China Securities Regulatory Commission has an official classification standard for listed companies. Every quarter, more than 50% of the company's business is required to be classified into the company's industry. This content can be found on the website of the CSRC on the industry classification of all companies in the last quarter.
2. Concept plate classification: Commonly used concept plate classification includes regional classification, time to market classification, index classification, hot economy classification and performance classification.