According to the national regulations, enterprises must realize the integration of three certificates in the course of operation, that is to say, they must handle these three certificates. Don't worry if you don't know how to apply. The specific application process is here. First of all, you need to fill out a document called "Application for Registration (Filing) of Three Certificates in One", which is one of the materials to be prepared.
If you entrust others to handle it on your behalf, you need to fill in the power of attorney of the designated representative or entrusted agent, and provide a copy of the ID card of the designated representative or entrusted agent. The agent should bring his original ID card. Then, you need to prepare the articles of association signed by the shareholders of the company, as well as the subject qualification certificate of the shareholders of the company, or a copy of the identity certificate of a natural person. After you have prepared these, you can apply at the counter of the industrial and commercial bureau.
Provide business license, organization code certificate and tax registration certificate to the tax bureau for filing.