According to the detailed rules for the implementation of China's Trademark Law, if the trademark owner is a company, the trademark right needs to be changed if the company's address changes. According to Article 29 of the Detailed Rules for the Implementation of the Trademark Law of People's Republic of China (PRC), an applicant for trademark registration or a trademark registrant who applies for correction in accordance with Article 38 of the Trademark Law shall submit an application for correction to the Trademark Office. If it meets the conditions for correction, the Trademark Office shall correct the relevant contents after approval; If it does not meet the conditions for correction, the Trademark Office shall not approve it, and notify the applicant in writing and explain the reasons. Where a trademark that has issued a preliminary examination and approval announcement or a registration announcement is corrected, a correction announcement shall be issued.