Illegal, here are some points mentioned in the Trademark Law, you can take a look

Article 6 Trademark users shall be responsible for the quality of the goods on which they use the trademark . Industrial and commercial administrative departments at all levels should supervise product quality through trademark management and prevent behaviors that deceive consumers.

Article 38 Anyone who commits any of the following acts shall infringe upon the exclusive right to use a registered trademark: (1) Using the same or similar goods with the registered trademark without the permission of the owner of the registered trademark Trademarks with the same or similar trademarks; (2) Selling goods that are knowingly counterfeit registered trademarks; (3) Forging or manufacturing registered trademarks of others without authorization or selling counterfeit or unauthorized registered trademarks; (4) Giving to others The exclusive right to use a registered trademark causes other damage.

Article 39: If any of the acts of infringement of the exclusive right to use a registered trademark are committed as listed in Article 38 of this Law, the infringed party may request the industrial and commercial administrative department at or above the county level for handling. The relevant industrial and commercial administrative department shall The management department has the right to order the infringer to immediately stop the infringement and compensate the infringed party for the losses. The amount of compensation shall be the profits gained by the infringer due to the infringement during the infringement period or the losses suffered by the infringed party due to the infringement during the infringement period. If the infringement of the exclusive right to use a registered trademark does not constitute a crime, the industrial and commercial administrative department may impose a fine. If the party concerned is dissatisfied with the decision of the industrial and commercial administrative department to order the cessation of infringing activities and impose a fine, he may file a lawsuit with the People's Court within fifteen days of receiving the notice; if he fails to file a lawsuit and fails to perform within the period of time, the relevant industrial and commercial administrative department shall apply to the People's Court for compulsory infringement. implement. For infringement of the exclusive right to use a registered trademark, the infringed party may also directly bring a lawsuit to the People's Court.