If the seller does not have eBay overseas warehouse authority, the following methods can be used for shipping:

Use a third-party overseas warehouse: cooperate with a company that provides overseas warehousing services to store and ship the seller's goods to overseas buyers.

Ship by yourself: ship directly from the seller's warehouse to overseas buyers, and bear the freight and customs declaration. It should be noted that this method requires the seller to understand overseas transportation regulations and tax policies, and may involve higher freight costs.