Yes, such situation may be possible and this if why we recommend filing your trademark in China if you source your products in China for your Amazon business.

If a 3rd party’s trademark is successfully registered and then recorded at the Customs, the exporting of your products in future might be blocked.

If you have prior use in China or applied for a trademark in China before, we can theoretically argue against this restriction.  However, it is a litigation procedure which is very expensive and time consuming.

If a 3rd party trademark is registered and you are afraid that they the registrant may block the export of your goods, you can instruct us to check whether the other party filed Customs Recordal each time you are exporting your goods.

As far as we know, a lot of trademark owners do not file Customs Recordal for registered trademarks.