When the trademark expires, you can renew it yourself.

After the trademark expires, you can go through the trademark renewal procedures by yourself. Renewal means that within 6 months before or after the expiration of the trademark, the applicant can apply to the Trademark Office for renewal of the trademark in accordance with the prescribed procedures and fees to extend the protection period of the trademark. To renew a trademark, you must apply for and pay fees in accordance with relevant laws, regulations and the provisions of the Trademark Office to ensure the legality and effectiveness of the renewal procedures.