You can check with the tax registration certificate number or legal person ID card at the tax service hall of the competent tax authority.

The tax registration certificate number is the tax "identity card" issued by the issuing authority. According to different industries, there are national tax registration certificates and local tax registration certificates. The national tax registration certificate has certain rules, such as 320 1, 02 136 1, 60586, 320 102, which is the administrative division of the company. Before 200 1, the laws of local taxation bureau and national taxation bureau were the same. Since 200 1, the registration number of local taxation bureau has been automatically generated by computer in sequence.