It is of course much more difficult to identify a famous province once every three years than to renew it. If the trademark owner and address are changed, they should be changed in time. As for whether to renew it after identification, it depends on whether the enterprise

wants to renew it. There is no direct relationship between it and whether it has changed. Of course, there is no mandatory requirement to renew it. If it is already a famous trademark, it is better to renew it. After all, it is hard to come by.