It's infringement. If a trademark has been registered, it can no longer be used, otherwise it will constitute infringement. One of the details of the relevant laws is the infringement of the exclusive right to use a registered trademark. The use of trademarks registered by others is an infringement, and generally it will not bear any legal responsibility or economic compensation, and will not cause significant losses to the other party; However, if it has caused serious losses to the other party, it is necessary to bear economic compensation according to the actual losses of the other party.