Trademark renewal registration process: 1. Prepare application documents and submit an application for trademark renewal registration to the official. 1-3 working days; 2. The Trademark Office issues the renewal certificate of registered trademark. About 3-6 months' working time. The materials to be prepared include: the application for trademark renewal registration, the applicant's identity certificate (photocopy), the power of attorney submitted by the entrusted agent, and the photocopy of the registration certificate. If the application document is in a foreign language, a Chinese translation signed and confirmed by the translation agency is required. Where the registered trademark of Article 40 of the Trademark Law of People's Republic of China (PRC) needs to continue to be used after the expiration of the term of validity, the trademark registrant shall go through the renewal procedures in accordance with the regulations within 12 months before the expiration; If it has not been handled during this period, it can be extended for six months. The validity period of each renewal registration is ten years, counting from the day after the last expiration of the trademark. If the renewal formalities are not completed at the expiration of the period, the registered trademark shall be cancelled. The Trademark Office shall announce the renewed registered trademark.