EXMAR names ammonia dual-fuel carriers

The vessels, named ANTWERPEN and ARLON, have been developed in partnership with HD Hyundai following a joint programme launched more than three and a half years ago. The ships are designed with a total capacity of 46,000 cubic metres, including 45,000 cubic metre cargo tanks and additional deck storage, offering increased cargo intake compared with conventional designs.

The project reflects a tailored approach to vessel engineering, with modifications to length and beam enabling greater efficiency while maintaining operational flexibility. Both vessels are purpose-built to transport liquefied gases while also using ammonia as a fuel, positioning them at the forefront of alternative marine energy solutions.

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Safety has been a central focus throughout development, with extensive collaboration involving engineers, regulators and experienced seafarers. Input from crew members with decades of ammonia handling experience informed risk assessments, design refinements and operational protocols to ensure safe handling and propulsion systems.

EXMAR worked closely with Lloyd’s Register and regulatory authorities to support the evolution of international guidelines governing ammonia as a marine fuel. This included contributing to frameworks under the International Maritime Organization, helping to establish standards that could enable wider industry adoption.

The vessels’ dual fuel capability allows them to achieve carbon dioxide emission reductions of up to 90% during navigation, offering a significant environmental advantage. The ability to use onboard cargo as fuel also enhances operational efficiency and flexibility for operators.

The development programme brought together multiple industry partners, including Wärtsilä Gas Solutions and WinGD, with propulsion systems undergoing extensive testing prior to deployment.

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The naming ceremonies mark a defining moment in EXMAR’s long-standing involvement in ammonia and LPG shipping and highlight the growing role of alternative fuels in the maritime sector’s decarbonisation efforts.