I sell on Amazon.es. Do I need EPR in Spain?

Yes. Amazon's own page says that if you sell packaged products on Amazon.es and you are a producer under Spanish law, including when you sell to customers in Spain from a company with no establishment there, you must obtain your EPR registration number and submit it through the EPR Compliance Portal in Seller Central. If you have not provided a valid number, Amazon can enrol you automatically in its EPR payment service: it declares your Amazon sales to a SCRAP, pays the contributions and deducts them, with a management fee, from your account. Amazon itself calls submitting your own number the recommended option. The service covers Amazon sales only and does not register you. AAmazon+3