If you want to check the surplus reserves, undistributed profits and other indicators in corporate financial reports in the Hong Kong stock market, you can go to the company database of the Hong Kong Stock Exchange.

The specific operation steps are as follows:

1. Open the official website of HKEx and enter the "Company Database" page.

2. On the "Company Database" page, enter the company name or stock code to be queried, and select the corresponding market sector (main board, growth enterprise market, funds, bonds, etc. ).

3. After entering the company details page, select "Financial Summary" or "Financial Indicators" in the navigation bar to find relevant financial indicators such as surplus reserve and undistributed profit.

It should be noted that the financial report formats of different listed companies may be slightly different, and the specific precautions need to be analyzed and evaluated according to the actual situation with reference to the corresponding financial accounting standards.