Just go to the local (Xi 'an) competent tax authority to apply for changing the basic information of tax registration (because it does not involve changing the content of tax registration certificate, tax registration does not need to be changed, but the basic information in the tax authority database should be changed, that is to say, the basic information of tax registration form should be changed).

Information provided: copy of business license and original tax registration certificate (not required, but the tax authorities will check)