The Grey Box Concept proposes that multiple container carriers transfer equipment assets to a jointly owned offshore holding corporation. This equipment would then be managed by a separate subsidiary to optimize utilization and reduce costs for shareholders. By maximizing equipment usage through shared pooled facilities, the Grey Box aims to lower carriers' overall fleet levels, repositioning movements, storage charges, and maintenance and repair costs. The main beneficiaries would be consortia, alliances, and large independent operators seeking to reorganize asset management.