

ABS has awarded HD Hyundai Heavy Industries (HD HHI) and HD Korea Shipbuilding & Offshore Engineering (HD KSOE) approval in principle (AIP) for the basic design of a 22,000 CBM bunkering vessel capable of supplying ammonia as marine fuel.
Announced at Gastech 2026, the approval results from a joint development project initiated earlier this year. ABS reviewed the design’s general arrangement, machinery arrangement, ammonia cargo handling system, and fuel supply system against applicable class and international requirements.
“Bunkering infrastructure is a critical step for any marine fuel to scale, and it has to be implemented with safety designed in from the start. This AIP reflects the industry’s need for fuel flexibility while advancing the safe bunkering of ammonia. ABS is proud to support HD HHI and HD KSOE as they develop technologies that expand fuel flexibility,” said Gareth Burton, ABS Senior Vice President, Global Engineering.
ABS and the HD Hyundai group have worked together across a range
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