Yes, according to the

Trademark Law

, renewal must be continued after the expiration date

, if it is not renewed, then such a good and famous trademark will be invalidated in the future.

Your famous trademark is very valuable. It would be a pity not to renew it. At the same time, renewal is free.

Famous trademarks are difficult to apply for now, so it should be renewed.

Renewal is generally six months in advance.