MISC and China Offshore’s ammonia FPSO design wins ABS’ blessing

Two players, MISC and China Offshore Engineering & Technology Company (China Offshore), have secured an approval in principle (AiP) from the American Bureau of Shipping (ABS) for their concept of an ammonia floating production storage and offloading (FPSO) unit.

The AiP for the ammonia FPSO design was received from the American Bureau of Shipping on December 2, 2025, in Shanghai, China. This floater solution is said to adapt proven onshore production technology for offshore operations, transforming unutilized hydrocarbon gas from nearby offshore facilities into high-value blue ammonia, which is stored onboard at cryogenic conditions.

This initiative is jointly developed by MISC and China Offshore, which work in close collaboration with ammonia technology licensors, Kellogg Brown & Root (KBR) and LNT Marine, for the ammonia cargo containment design (LNT A-BOX System). ABS is appointed by the consortium to provide independent review and validate the project’s technical feasibility and safety.

Zahid Osman, President and Group CEO of MISC, commented: “The Ammonia FPSO concept is aligned with MISC’s commitment to #deliveringProgress and accelerating the pathway to deliver more energy with