Shipper Owned Containers, SOC Containers offered by our company, denotes that the consignee, or person in charge of receiving the shipment, owns the shipping container. They may benefit from SOCs since they are not subject to per demurrage fees. Carriers, on the other hand, charge extra to ship them. Shipper Owned Containers, SOC Containers refers to a metal freight shipping container owned by an individual or corporation and used to transport merchandise across vast distances. These containers are very effective as well as economical and great to use.