SOC or COC: your container or carrier-provided equipment

Start with responsibility for the equipment

COC stands for Carrier Owned Container; SOC stands for Shipper Owned Container. Operationally, establish who supplies the equipment for the particular service and arranges its next use. Carrier-provided equipment may be leased rather than legally owned by the carrier. A customer-supplied SOC may also be rented.

Confirm how the carrier will classify the actual unit and which quotation applies. Buying a container first can leave the business with equipment that cannot be used on the intended service.

Ownership does not establish suitability

A purchase document records a commercial transaction, not technical acceptance for transport. The unit’s condition, identification, required approvals and the operators’ requirements along the route matter.

The CSC Convention concerns container safety, including approval, maintenance and examination. A photograph of the plate alone does not resolve every question about current condition. Uncertainty requires competent assessment and confirmation of the carrier’s requirements.

Hapag-Lloyd publishes a separate SOC procedure dated 2025 and SOC transport terms. These are that carrier’s requirements, not universal acceptance by every line. Nonstandard units or departures from the stated criteria need advance disclosure. Refrigerated SOC equipment requires additional arrangements.

Prepare an equipment enquiry

Before purchase or rental, obtain information from the supplier for the carrier enquiry:

Acknowledgement of an enquiry is not necessarily equipment acceptance. Record what has been reviewed, which evidence remains outstanding and which conditions must be met before terminal delivery.

Compare the full equipment cycle

For COC, establish empty collection, condition at handover, permitted use and return requirements. For SOC, establish procurement, empty positioning for packing, maintenance and the destination after unloading.

SOC does not remove terminal handling, storage, inland transport or documentation costs. Rental equipment may carry time, return, repair or repositioning charges under its contract. Do not transfer a COC tariff to SOC without checking its scope. Link each charge to a specific service, billing unit and trigger.

Separate equipment acquisition, transport and subsequent disposal or reuse in the comparison. Expected resale proceeds remain an assumption until there is a binding arrangement with a buyer. Include who pays each cost; moving it to another party does not remove it from the supply chain.

Example: keeping the container at a factory

This example is fictional. An importer wants to retain the container as storage after delivery. The comparison is between returning a COC after unloading and purchasing a SOC.

First obtain transport acceptance for the SOC. Then establish unloading or whole-unit lifting arrangements, suitable contractors and conditions for placing it on site. Separately clarify the container’s customs and tax treatment and local requirements for its intended use. Those obligations depend on the case and jurisdiction.

Only then does a cost comparison become useful. A difference in ocean freight does not include buying the equipment or the work required at the factory.

Plan beyond delivery

A SOC plan should identify retention, onward transport, resale or return to the lessor. Each option needs a location, responsible party and budget. Having no carrier-depot return obligation does not permit indefinite terminal storage without charges or restrictions.

Before booking, obtain a matching quotation, technical requirements and a confirmed post-delivery plan. A charge calculation can compare supplied commercial terms; it cannot approve equipment or interpret the rental agreement.