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 a registered trademark needs to be used continuously after the expiration of its term of validity, the trademark registrant shall go through the renewal procedures in accordance with the provisions within 12 months before the expiration; If it has not been handled during this period, it can be extended for six months. Article 40 of the Trademark Law of People's Republic of China (PRC) * * * If the registered trademark needs to be used again after the expiration of its term of validity, the trademark registrant shall go through the renewal procedures in accordance with the provisions 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.