There are several sites out there trying to help explain PPWR and they all say the same thing: the one that brings the package to an EU state market must do EPR registration in that EU state.

If you sell directly to consumers from a web shop, that is you.

A selection of such guides:

https://www.ppwrconsulting.com/blog/ppwr-small-business-sme/

https://packdeclare.com/blog/ppwr-sme-guide

https://getreadycompliance.eu/ppwr-extended-producer-respons...