Freight Fundamentals

Understanding transshipment in global shipping

Written by Cole Marketing | Oct 20, 2025 2:00:00 PM

While it lowers shipping costs, transshipment may affect delivery times and introduce risks.

Transshipment is a common shipping practice used by many carriers in international shipping, where goods are transferred from one vessel to another before reaching their destination.

Although it may seem like an extra step, it is a common part of the global logistics system.

In this article, we cover what transshipment is, why it's used, its pros and cons, and the key questions to ask before shipping your goods.

What is transshipment?

Transshipment is the process of moving a shipping container or cargo from one vessel to another at an intermediate port (a transshipment hub) before it reaches its final destination.

For example, a container heading to North America from a smaller port in Asia might first be loaded onto what is called a feeder vessel.

This vessel first travels to a larger hub port, such as Shanghai or Singapore.

At the hub, the container is unloaded, held at the terminal, and then loaded onto a larger mother vessel for the main journey across the Pacific.

Transshipment differs from direct shipping, where goods travel on the same vessel from start to finish.

Why is my cargo being transshipped?

While it might seem logical for a shipment to travel directly from origin to destination, global shipping networks are built for maximum efficiency.

Transshipment is the key operational strategy that makes this efficiency possible. It is driven by several factors, such as:

Limiting port calls on large vessels

Large ocean vessels can carry over 20,000 containers. It is not profitable or practical for them to stop at every single port.

Instead, carriers use a hub-and-spoke model, where large vessels travel only between major global hubs, while smaller feeder vessels move cargo between those hubs and smaller ports.

Lack of direct service routes

There may be no direct vessel service available between your origin and destination ports, especially if you are shipping from a smaller or less common location.

In this case, transshipment may be the only way to connect the two.

Cargo consolidation 

For Less-than-Container-Load (LCL) shipments, transshipment is common.

Small shipments may be unloaded at a hub to be consolidated into a new container with other goods going to the same destination.

Port accessibility

Some ports cannot handle very large container ships due to their infrastructure or space constraints.  

Transshipment allows cargo to move via smaller vessels that can access those ports.

The pros and cons of transshipment

While transshipment offers flexibility and cost savings, it also introduces risks that businesses must understand and manage.

Advantages of transshipment

    • Lower shipping costs: Carriers use the hub-and-spoke model to optimize vessel space and routing. This efficiency is often passed on to you as lower freight rates, compared to more expensive direct services.

    • Wider global reach: Transshipment connects smaller, local ports to major global shipping lanes. This gives you more sourcing flexibility, allowing you to buy from factories near almost any port, not just major ones.

    • Efficient cargo movement: Transshipment can help keep your goods moving, even in cases of port congestion or closures due to bad weather conditions.

Disadvantages of transshipment

    • Longer and unpredictable transit times: Unloading, sorting, and waiting for the next vessel at a hub port can add to your total transit time. Moreover, if a connecting vessel is full, delayed, or cancelled, your cargo may face an even longer and unexpected hold-up.

    • Increased risk of damage or loss: Every time a container is handled, there is a risk of it being dropped, damaged, or lost. Transshipment doubles the number of moves for a container, which in turn doubles this risk.

    • Complex documentation: In some cases, transshipment may cause administrative burdens, especially if goods need to temporarily enter a country’s customs system while in transit.

How transshipment affects compliance

Customs non-compliance is the greatest risk linked to transshipment.

While the act of transferring goods from one vessel to another is not itself a violation, it becomes an issue only when routing is used to disguise a product’s true origin or to avoid duties.

In Canada, transshipped goods may risk losing their “originating status” under free trade agreements. If the rules of transshipment are misunderstood, businesses could lose preferential tariff rates or even face penalties for tariff evasion.

In the U.S., transshipment is considered a primary red flag for potential tariff evasion, and goods may be reviewed to determine whether they were moved for logistical reasons or if the routing was used to disguise origin.

In cases of proven evasion of reciprocal tariffs through illegal or disguised transshipment, the U.S. Customs and Border Protection (CBP) may impose an additional 40% ad valorem duty. 

Assessing transshipment risks upfront

To manage your supply chain efficiently, you need clarity.

And to get the clarity you need, here are the key questions to ask and points to consider before you ship your goods:

Is this a direct or transshipped service? 

Understanding upfront whether your cargo will be transferred through a hub port allows you to plan for potential delays. A slightly cheaper quote may not be worth it if it significantly increases your delivery time.

Where will transshipment take place?

Knowing the hub location can help you assess risks such as congestion, weather disruptions, or political instability in that region.

What is the estimated transit time, including hub wait times?

Consider how much additional time may be added to the journey and whether there are faster alternatives.

Will there be additional costs?

Determine whether transshipment adds extra fees for handling or documentation.

How is cargo handled during transshipment?

Confirm your carrier’s or freight forwarder’s procedures for minimizing damage, theft, or loss while cargo is being moved between vessels.

Are customs formalities required?

Depending on the hub port, transshipped goods may be subject to customs rules or temporary entry procedures. Always check how your shipment will be treated.

How will you be notified of delays at the hub? 

Ask your freight forwarder how they monitor connections and what their process is for alerting you if your container misses its next vessel.

How Cole International can help

Getting clear answers to these questions is the key to managing your supply chain. At Cole International, we believe in providing that clarity right from the start.

Through our freight forwarding solutions, we can help your business navigate the entire shipping journey and make the right routing decisions.

Here’s how we can help:

  • Provide routing options with the right balance between cost and speed
  • Check for service reliability and congestion at key transshipment hubs
  • Track shipments and manage connections to prevent risks and delays
  • Review your documentation to verify its accuracy and completeness

Our goal is to help you ship your goods smarter and faster.

If you need help managing the shipments of your goods, reach out to one of our trade professionals to determine the routing option that best suits your business needs.