Listing audit generally checks the accounts for several years.

Specific requirements for the financial status of listed companies: the financial status of listed companies. The net profit in the last three fiscal years is more than 30 million yuan; The total number of shares before issuance is at least 30 million shares; Did not make up for the loss of the latest issue; The latest assets account for more than 20% of the net assets; The accumulated cash flow generated by business activities in the last three fiscal years is not less than 50 million, or the operating income in the last three fiscal years exceeds 300 million.