1. "Trademark Agency Power of Attorney": If you entrust a trademark agency to act as an agent, you must provide a power of attorney stamped with the applicant's seal. Applicants from outside mainland China who want to apply for trademark review in China must entrust a trademark agency to do so.

2. Various types of reexamination applications: If you entrust an agency to apply for trademark review, the agency will prepare it.

3. Reasons and evidence materials