where the name, address or other registered items of a trademark registrant are changed, an application for change shall be submitted to the trademark office. Where the name of a trademark registrant is changed, the certificate of change issued by the relevant registration authority shall also be submitted. If approved by the Trademark Office, a corresponding certificate shall be issued to the trademark registrant and announced; If it is not approved, it shall notify the applicant in writing and explain the reasons. Where the name or address of a trademark registrant is changed, the trademark registrant shall change all its registered trademarks together; If it is not changed at the same time, the Trademark Office shall notify it to make corrections within a time limit; If it is not corrected within the time limit, it shall be deemed as abandoning the application for change, and the Trademark Office shall notify the applicant in writing.

Legal basis:

Regulations for the Implementation of the Trademark Law of the People's Republic of China

Article 3 Where the name, address or other registered items of a trademark registrant are changed, an application for change shall be submitted to the Trademark Office. Where the name of a trademark registrant is changed, the certificate of change issued by the relevant registration authority shall also be submitted. If approved by the Trademark Office, a corresponding certificate shall be issued to the trademark registrant and announced; If it is not approved, it shall notify the applicant in writing and explain the reasons.

where the name or address of a trademark registrant is changed, the trademark registrant shall change all its registered trademarks together; If it is not changed at the same time, the Trademark Office shall notify it to make corrections within a time limit; If it is not corrected within the time limit, it shall be deemed as abandoning the application for change, and the Trademark Office shall notify the applicant in writing.