In international air freight, "door-to-door" and "port-to-port" are two core service models. The key differences lie in the scope of service coverage, the boundaries of responsibility, and the convenience for cargo owners. The specific definitions, service content, and applicable scenarios are as follows.

The documents required for ocean freight customs clearance are generally divided into basic essential documents and supplementary documents required in special circumstances. Next, I will explain them to you in detail, and I hope it will be helpful to you.

International air freight is a cross-border logistics method that uses airline cargo flights to transport goods from one country to another. The core process can be summarized as six major links: "preparation of goods → booking → customs declaration → transportation → customs clearance → delivery". The entire process relies on the efficiency of air transport to complete cross-border delivery.

In simple terms, ocean cargo release is the act of a shipping company or its agent (freight forwarder) allowing the consignee (or its agent) at the port of destination to take delivery of the goods after the release conditions have been met.