Legal analysis: there is no need to pay an annual fee after successful trademark registration. Because there is no annual fee for trademarks. However, trademarks have provisions for renewal. According to the relevant laws and regulations, if a registered trademark needs to be used after its expiration, the trademark registrant shall go through the renewal procedures in accordance with the regulations 12 months before its expiration. If it is not handled in time, it will be extended for half a year and the corresponding trademark renewal fee will be paid.

Legal basis: Trademark Law of People's Republic of China (PRC).

Article 39 The period of validity of a registered trademark is ten years, counting from the date of approval of registration.

Article 40 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. 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.