DDP is delivered after duty payment, which is popularly understood to mean that the exporter has paid the tax in advance at the port of shipment (including customs duties, VAT, etc.)；
DDU means duty-not-paid delivery, which can be understood to mean that the importer pays duty at the port of destination. In the first round of FBA transportation, if the seller does not have his own company or bank account abroad to pay taxes in time, he needs to make duty-paid delivery under DDP terms through a logistics company (Note: Amazon cannot act as an importer and will not pay taxes for sellers).