Don’t worry, the poster. According to your situation, you have indeed violated the rights of others, but the situation is not as serious as you think.

Because the amount of infringement is not whatever the other party wants. The amount of compensation for infringement of trademark exclusive rights shall be the benefits obtained by the infringer due to the infringement during the infringement period, or the infringed party during the period of infringement. Losses suffered due to infringement include reasonable expenses paid by the infringer to stop the infringement. You just said that if only one box of the infringing product was sold, the compensation would not be as much as what he requested. The other party's claim of 520,000 yuan in compensation cannot be supported by the court without sufficient evidence.

In addition, if you sell goods that are not known to infringe the exclusive rights of a registered trademark, and you can prove that you obtained the goods legally and explain the supplier, you will not be liable for compensation.

Go ahead and respond to the appeal. There should be no big problem in the outcome.