Complain to the Trademark Management Office of the Municipal Industry and Commerce Bureau or the Trademark Advertising Contract Management Section of the Industry and Commerce Branch.

For trademark infringement, you can complain to the Trademark Management Office of the Municipal Industry and Commerce Bureau or the Trademark Advertising Contract Management Section of the Industry and Commerce Branch, or you can file a lawsuit in the People's Court. When requesting handling from the industrial and commercial administrative authorities, a written request must be made. The request shall state the cause of the request, the legal basis for the request, the name and address of the requester, the name of the infringer and the place where the infringement occurred, etc. Foreigners or foreign enterprises must entrust a trademark agency with foreign-related agency rights to handle the matter.

Legal provisions:

Article 61 of the Trademark Law: The industrial and commercial administrative department has the right to investigate and deal with any act that infringes upon the exclusive right to use a registered trademark; if a crime is suspected, it shall be promptly investigated Transfer the case to judicial authorities for handling according to law.

Article 57 Anyone who commits any of the following acts shall infringe upon the exclusive right to use a registered trademark: (1) Using the same trademark as the registered trademark on the same product without the permission of the trademark registrant (2) Using a trademark that is similar to its registered trademark on the same product without the permission of the trademark registrant, or using a trademark that is the same or similar to its registered trademark on similar products, which is likely to cause confusion;