On November 3, 2026, Dalian Shipbuilding Offshore Co. (DSOC) and Jack-up Barge officially signed the delivery protocol for the AJ46-2 self-elevating accommodation unit “JB 121,” with the vessel’s delivery completed on the same day.
he “JB 121” platform is classified by the American Bureau of Shipping (ABS) and features the AJ46-360-C design developed by the internationally renowned design firm Gusto MSC. It has an operating depth of over 350 feet, a capacity of 354 people, and is equipped with a 200-ton main crane. The platform features a triangular hull and three triangular truss-type legs, offering comprehensive capabilities that include crew accommodation, offshore heavy lifting and installation, as well as support for well completion and workover operations.
The living quarters feature a V-shaped layout and integrate various leisure facilities, including guest cabins, a fitness center, and a cinema. With residential amenities that rank among the best for this class of platform, it is well-suited for long-term offshore stays, even in moderate sea conditions. The platform is designed for a diverse range of offshore operations—such as the development of marine renewable energy, the decommissioning and removal of offshore installations, and the construction of marine infrastructure—offering exceptional operational reliability and environmental adaptability.
According to DSOC, the platform will soon depart from Dalian, bound for Europe to participate in the construction and operation of offshore wind power projects.