1. Visit official website, Ministry of Construction, select "Construction Market Supervision" or "Construction Enterprise Management", find "Enterprise Qualification Inquiry" or "Qualification Inquiry", and fill in the inquiry conditions to make an inquiry.
2. Log on to the website of the local construction engineering supervision and administration bureau, find the function of "enterprise qualification inquiry" or "qualification inquiry", and enter relevant information for inquiry.
3. With the help of third-party platforms, search for relevant platforms in search engines and fill in relevant information as required to find relevant qualification information.
The above are several common methods to inquire about labor qualifications, which I hope will help you.