Japan’s Itochu Corporation, ClassNK, Nihon Shipyard Co, and the Maritime and Port Authority of Singapore (MPA) have initiated a collaborative effort to study and develop ammonia-fuelled ships. This partnership, formalized through a Memorandum of Understanding (MoU), focuses on the design and safety specifications necessary for these innovative vessels.
The MoU sets the stage for a comprehensive study into ammonia-fuelled ship designs currently under development by Itochu and its partners. As part of this initiative, the MPA, overseeing Singapore’s bustling bunkering hub, will evaluate these designs to ensure they meet rigorous safety standards. This evaluation is crucial for the safe operation of these vessels in one of the world’s most significant maritime refueling stations.
Nihon Shipyard is set to construct the vessels, specifically 200,000 deadweight tonne (DWT) class bulk carriers that will operate on ammonia dual-fuel technology. The collaboration aims to clarify and define the necessary specifications for these ships to safely conduct ammonia bunkering operations in Singapore. This step is essential for the commercial viability and operational safety of ammonia-fuelled ships.
Partnership Aims to Advance Design and Safety Standards
ClassNK will play a pivotal role in this partnership by providing expertise in safety and environmental protection. They will also offer insights into the alternative design approval process, ensuring that the ammonia-fuelled ships meet international standards and regulations.
Ammonia, as a fuel, presents a promising alternative to traditional marine fuels due to its potential to significantly reduce greenhouse gas emissions. However, its use poses unique challenges, particularly in terms of handling and safety. The collaborative study by Itochu, ClassNK, Nihon Shipyard, and the MPA aims to address these challenges, paving the way for a new era of environmentally friendly maritime operations.

The global maritime industry is increasingly focusing on sustainability, driven by regulatory pressures and the need to reduce carbon footprints. Ammonia-fuelled ships are seen as a key component of this green transition. By leveraging the combined expertise of Japanese and Singaporean entities, this partnership seeks to lead the way in developing practical, safe, and sustainable solutions for the shipping industry.
The MoU between these four parties represents a significant step towards the commercialisation of ammonia-fuelled ships. This initiative not only highlights the potential of ammonia as a maritime fuel but also underscores the importance of international cooperation in advancing maritime technology and safety standards. Through this collaboration, the involved parties aim to set new benchmarks for the global shipping industry, contributing to a more sustainable future.