For most people, a container is just a container. But in international logistics, there's a crucial distinction that can impact costs, flexibility, and project timelines: Who actually owns the container? In practice, a distinction is made between so-called COC containers (Carrier Owned Container) and SOC containers (Shipper Owned Container) .

While this distinction might seem minor to many shippers at first glance, it can have significant implications for transport costs and planning certainty, especially in international projects.

COC – The Classic Carrier-Owned Container

Most containers worldwide are owned by shipping lines. These are referred to as Carrier Owned Container (COC).

The process is simple:

• The shipping line provides the container.
• The shipper loads it.
• After arrival, the container is unloaded.
• It then must be returned within a specified period.

This model works perfectly for standard transports with clear transit times. However, additional costs arise if containers remain with the consignee longer than initially planned.

The Hidden Costs: Demurrage and Detention

Anyone involved in international trade will sooner or later encounter two terms:

Demurrage

Demurrage describes charges for containers that remain in the port or terminal longer than permitted.

Detention

Detention costs are incurred if the container is not returned to the shipping company on time after pickup. Especially with industrial projects, these costs can quickly become substantial, as unloading, assembly, or further processing often cannot be planned to the exact day.

SOC – The container belongs to the shipper

Here come Shipper Owned Container (SOC) into play. An SOC container does not belong to the shipping company, but to the shipper, buyer, or a project partner. This offers several advantages:

• No detention fees from the shipping company
• Flexible dwell times for the consignee
• Greater planning certainty
• Useful for remote destinations
• Ideal for project and plant logistics

Especially for large industrial projects, SOC containers can be used on-site for weeks or months without incurring additional daily costs.

Why SOC containers are particularly interesting in project logistics

For standard transports, SOC containers often play only a minor role. The situation is different for project cargo. For example, those transporting machinery, production facilities, or entire production lines often require longer unloading and assembly times. The container then becomes not just a means of transport, but sometimes also a temporary storage solution. This is precisely where the strengths of SOC containers lie.

Buy containers instead of renting?

Many companies are unaware that containers can also be purchased. This can be economically beneficial, especially for long-term projects. After arrival, the containers can:

• be used as storage containers
• be resold
• remain permanently at the destination
• be used for further transports

This creates additional flexibility that isn't possible with conventional shipping line containers.

The Role of FR8 Logistik GmbH

Especially for international project logistics, FR8 Logistik GmbH assists its customers in selecting the appropriate equipment. In addition to standard containers, this also includes:

• SOC Containers
• High Cube Containers
• Open Top Containers
• Flat Rack Containers
• OOG Solutions (Out of Gauge)

Because not every project fits a standard solution. Sometimes, successful logistics begins with the question: Which container is actually the right one?‍