Trademark complaints need to prepare the following materials:

1. Complaint: The name, address, telephone number and trademark right of the complainant shall be listed; (If represented by a trademark agency, the name, address and telephone number of the agency shall also be listed); The name, address, infringement facts and relevant information of the respondent; The legal basis and requirements of the complaint and the date of the complaint.

2. Business license and photocopy.

3. Trademark registration certificate and its copy.

4. Evidence of infringement: including infringing objects, trademarks, relevant bills, photos, etc.

5. Power of attorney. Domestic trademark registrants can entrust others to complain, but they should submit the power of attorney signed by the client. If a trademark agency organization is entrusted to make a complaint, it shall produce a valid certificate that can prove that the organization has the agency qualification; Where a registered person in foreign trademark requests to protect his exclusive right to use a trademark, he shall entrust a trademark agency designated by the state to make a complaint, and submit a Chinese complaint, a certified or notarized power of attorney and relevant certification materials.