DES is the abbreviation of Delivered Ex Ship, which means goods delivered at the port of destination in Chinese. That is to say, the seller must hand over the goods to the buyer for processing. The cleared goods will be shipped to the designated port of destination within the specified time, and the goods will be delivered on board the ship at the port of destination and the pre-delivery costs will be borne. During this period, the seller does not need to go through the import customs declaration procedures for foreign merchants. As long as the delivery on board is completed, the relevant obligations will be transferred to the buyer.