1. Formal export customs declaration generally refers to general trade customs declaration, which is different from express customs declaration. Export needs to provide general trade information and enjoy the right of tax refund. This is a way of customs declaration.
2.DDP is a trade method, and its full English name is duty-paid delivery (designated destination). Chinese name after-tax delivery (… designated destination port) "delivered duty paid (… designated destination)" means that the seller completes the import customs clearance formalities at the designated destination and delivers the goods that have not been unloaded on the delivery tools to the buyer to complete the delivery.
3, responsibility and contact
Exporters who officially declare customs have the right to refund taxes, regardless of the mode of trade.
DDP is delivered to the buyer in the form of delivered duty paid, which stipulates the obligations of the exporter.
Strictly speaking, both of them are applicable to international trade, but there is no necessary connection between them.