Mitsubishi Shipbuilding has delivered its first ammonia fuel supply system (AFSS) and ammonia gas abatement system (AGAS) to Japan Engine Corporation. These systems support J-ENG’s ammonia-fueled marine engine, marking a key milestone in advancing sustainable maritime solutions and facilitating decarbonization efforts within the industry.
Recent publications by environmental organizations urge the International Maritime Organization (IMO) to prohibit ammonia-powered vessels from discharging toxic waste into oceans. As the shipping industry seeks zero-emission fuels, the coalition emphasizes protecting marine ecosystems. They advocate for mandatory onboard retention of ammonia waste, highlighting the need for long-term ecological safeguards.
The International Association of Classification Societies (IACS) has revised its Unified Requirement UR M78, introducing vital safety standards for ammonia-fueled marine engines. This update is essential for the maritime industry’s decarbonization efforts, incorporating enhanced risk analysis, gas recovery systems, and improved safety measures to support the transition to zero-carbon fuels.
The global market for low-carbon ammonia as a marine fuel is set for significant growth, projected to rise from $4.11 billion in 2026 to $11.46 billion by 2036. This shift highlights the shipping industry’s commitment to sustainability, offering a viable solution to reduce carbon emissions and comply with environmental regulations.
Lloyd’s Register, EXMAR, and the Belgian FPS for Mobility and Transport have developed interim guidelines for the safe use of ammonia as fuel on gas carriers. This initiative, which began over two years ago, aims to facilitate the maritime industry’s transition to sustainable fuel alternatives, addressing safety concerns while promoting flexibility in vessel design.
Mitsubishi Shipbuilding Co., Ltd., alongside Imabari Shipbuilding, “K” LINE, MOL, NYK Line, JMU, and NSY, has signed a Memorandum of Understanding to establish a standard design framework for liquefied CO2 carriers and next-gen alternative fuel vessels. This initiative emphasizes decarbonization technologies, enhancing Japan’s shipbuilding competitiveness globally.
Everllence has unveiled its innovative dual-fuel ME-LGIA engine, tailored for ammonia use. Combining Diesel principles with advanced safety features, this engine supports secure data transmission for real-time monitoring. Set for delivery in Q1 2026, it aims to establish a new standard in ammonia engine technology, enhancing operational efficiency and safety.
Sumitomo is set to showcase ammonia bunkering in Singapore by 2027, collaborating with the Maritime and Port Authority to establish safety protocols and operational guidelines. This initiative, part of a broader push for sustainable maritime practices, highlights Singapore’s commitment to reducing carbon emissions through innovative fuel alternatives.
The Maritime Just Transition Task Force (MJTTF) has launched innovative training frameworks for seafarers operating ammonia, methanol, and hydrogen-powered ships. These publicly accessible frameworks aim to guide regulators in developing training programs and certification schemes, addressing the diverse needs of both entry-level and senior officers in the maritime industry.
A new feasibility study, FASTMOVE, led by Ricardo in collaboration with Brunel University London and the Port of Cromarty Firth, is exploring ammonia as a maritime fuel. This initiative aims to assess ammonia’s role in decarbonization and develop a next-generation combustion engine, enhancing the UK’s leadership in sustainable maritime technology.
The Japan Engine Corporation (J-ENG) has unveiled the world’s first commercial ammonia-based marine engine, achieving a major milestone in shipping decarbonization. The innovative dual-fuel engine, named 7UEC50LSJA-HPSCR, boasts a 95% reduction in greenhouse gases and is set for installation on an ammonia gas carrier by 2026.
The successful adoption of hydrogen and ammonia in maritime transport relies on regulatory clarity, advanced technology, vessel design adaptations, and skilled crews. Collaboration across the industry is crucial. Current regulations do not encompass these fuels, necessitating a risk-based approval process to ensure safety and facilitate integration into maritime operations.
Methanol and ammonia have transitioned from theoretical concepts to viable zero-emission shipping fuels, according to a Global Maritime Forum report. Methanol is ready for low-carbon operations, while ammonia is prepared for piloting. However, challenges remain, requiring collaboration among stakeholders to scale these technologies effectively and create necessary growth conditions.
The first successful ship-to-ship transfer of ammonia in Western Australia marks a milestone in maritime decarbonization. Led by the Global Centre for Maritime Decarbonization, the pilot at Port Dampier demonstrated safe ammonia transfers in offshore conditions, paving the way for future ammonia bunkering operations globally.
The Port of Rotterdam recently tested its capabilities for future ammonia bunkering operations, in anticipation of the arrival of ammonia-fueled vessels in 2026 or 2027. Safety protocols were enhanced, with successful ship-to-ship transfer of 800 cubic meters of liquid ammonia using gray ammonia. The industry is making strides towards using ammonia as a viable alternative fuel source.
