if your trademark has been registered, the other party's behavior is futile. If your trademark has been used but not registered. This is malicious cybersquatting. You can raise an objection to you during the objection period, or raise a dispute within 5 years after he gets the registration certificate. If the objection or dispute is established, his trademark will be rejected. Moreover, the success rate of such objections or disputes is relatively high. Found to be infringed by others: you can report to the industrial and commercial bureau, which will investigate and deal with it. You can also bring a lawsuit to the court, ask the court to intervene, order the infringer to stop the infringement, and claim damages. The key now is to obtain evidence. In fact, it is not difficult to obtain evidence. Just buy a pack of his tea and ask for an invoice. This is the hard evidence of infringement. Of course, if we can find out his production and business premises, it will be the best and the investigation will be quick. ?