Hello! You need to pay attention to the following issues:

1. The trademark is valid for 10 years. You need to pay attention to the expiration date and renew in advance.

2. If the business address changes, the trademark also needs to be changed.

3. The trademark needs to be used continuously and can be resold when no longer used. If the trademark is not used for three consecutive years, it is easy for others to object to the trademark.

4. The trademark must be used legally, otherwise it will be easily revoked.