After a trademark is registered, in addition to annual fees, other fees may also be paid. The following are some other fees that may be required:

1. Annual fee: In many countries or regions, trademark registration requires an annual fee to maintain the validity of the trademark. The amount and frequency of annual fees vary by country or region, but generally trademark holders are required to pay a certain amount of annual fees every year or every few years.

2. Maintenance fee: Some countries or regions may require trademark holders to pay maintenance fees within a specific period of time after trademark registration to ensure the validity of the trademark. The amount and frequency of maintenance fees vary from country to country.

3. Change fee: If the trademark holder needs to change the trademark registration information, such as the owner's name, address or the scope of use of the trademark, etc., he may need to pay a certain change fee.

4. Litigation costs: If a trademark holder needs to protect trademark rights through legal means, such as filing a trademark infringement lawsuit or invalidation lawsuit, it may need to pay related litigation costs, attorney fees, etc.

Please note that the fees listed above may vary by country, region and specific circumstances. The specific fee amount and payment method should be confirmed according to local trademark laws and regulations.

Trademark holders should promptly understand and comply with the provisions of the Trademark Law to ensure the validity of the trademark and avoid cancellation of trademark registration due to failure to pay relevant fees.

The above content is carefully compiled by Zhubajie.com. I hope it will be helpful to you.