Ammonia is widely discussed as a possible zero-carbon marine fuel because it contains no carbon molecule. However, it is highly toxic, corrosive in certain conditions and requires exceptionally rigorous safety management. Its actual climate performance depends on how it is produced. “Green ammonia” made with renewable electricity and renewable hydrogen has a different lifecycle profile from ammonia made using fossil fuels without effective carbon control. For these reasons, ammonia bunkering is still an emerging capability rather than a routine service in most ports.
This article identifies twelve ports to watch for ammonia-bunkering readiness. It does not claim that ammonia is currently available as a marine fuel at all of them. The selection considers industrial ammonia experience, clean-hydrogen projects, global shipping connectivity, safety culture and active planning for future fuels. Actual availability will depend on regulation, ship demand, production, storage permits, safety cases and emergency-response arrangements. Operators must always verify current conditions directly with the port and supplier.
What makes ammonia different from other fuels?
Ammonia has long been traded as a chemical and fertiliser feedstock, but supplying it as a ship fuel introduces new operational issues. Ports need safe storage, transfer systems, gas detection, exclusion zones, trained personnel, medical response planning and clear rules for simultaneous operations. Ships need compatible engines, tanks, fuel systems and crew competence. A port’s existing ammonia terminal experience is useful, but it does not automatically create a bunker service. The move from chemical cargo to frequent ship-fuel delivery requires additional standards and operational discipline.
1. Port of Singapore, Singapore
Singapore is a logical future ammonia-bunkering hub because it is already the world’s leading marine-fuel centre and a major location for alternative-fuel policy, pilot projects and maritime safety development. Its global shipping connectivity and extensive bunkering ecosystem could make it a key demand aggregator once ammonia-fuelled ships enter regular service. The difficult work is establishing credible procedures, supplier chains and emergency capability in a dense port environment. Singapore’s role will be defined by safety and governance as much as by fuel volume.
2. Port of Rotterdam, Netherlands
Rotterdam combines a large industrial cluster with hydrogen, ammonia-import and energy-transition projects, making it one of Europe’s most important ports to watch. Its refineries, chemical facilities, storage terminals and pipeline connections provide a foundation for handling hydrogen-derived products. The port is exploring how imported ammonia could be used, cracked into hydrogen or supplied to industry and shipping. Its future bunkering role will require dedicated safety design and marine procedures, but Rotterdam’s scale and access to northwest European markets give it strong potential.
3. Port of Antwerp-Bruges, Belgium
Antwerp-Bruges is another major European chemical and energy gateway with a strong interest in hydrogen carriers, ammonia and industrial decarbonisation. Its chemical cluster provides knowledge of hazardous materials, while its North Sea location serves global shipping and short-sea routes. The port could become an important ammonia-import, storage and distribution point before it develops into a bunker hub. The key question is how demand from industry and ships will evolve, and whether infrastructure can be designed flexibly enough to serve both safely.
4. Port of Sohar, Oman
Sohar has industrial land, energy connections and access to the Gulf of Oman, making it relevant to green-hydrogen and ammonia-export discussions. Oman’s renewable-resource potential and position near Indian Ocean routes create interest in producing hydrogen derivatives for Asian and European markets. If projects mature, Sohar could handle ammonia as an export cargo and potentially support marine-fuel supply. However, export-terminal capability should not be confused with routine bunkering; ship demand, regulations and delivery infrastructure will determine the latter.
5. Port of Duqm, Oman
Duqm’s deep-water location, industrial-zone development and Arabian Sea access make it another future-fuel port to watch. It has room for renewable-energy, hydrogen, ammonia and industrial projects, and it lies outside the Strait of Hormuz. Its potential is strategic, but emerging-port status means that investments in utilities, transport links, safety services and commercial customers must advance together. Duqm could become a useful production and export hub before regular marine-fuel demand develops.
6. Port of Jebel Ali, United Arab Emirates
Jebel Ali’s logistics scale, industrial zones and global shipping connections make it relevant to future ammonia and hydrogen-derivative supply. Dubai’s role as a maritime and trading hub could help aggregate demand from container lines, tankers and regional shipping once suitable vessels and safety standards are established. The port’s challenge will be to integrate a highly toxic new fuel into an already busy environment of containers, trucks, warehouses and conventional bunker operations. Robust permitting and emergency planning will be essential.
7. Port of Busan, Republic of Korea
Busan is a leading Northeast Asian transshipment hub with strong links to Korean shipbuilding, technology and hydrogen policy. Korea’s industrial strategy makes ammonia relevant both as a potential energy carrier and as a future marine fuel. Busan could play a role in trials, ship support and supply-chain coordination, especially as Korean yards deliver ammonia-ready or ammonia-fuelled ships. Its actual bunkering readiness will depend on storage, regulatory approval, supplier capacity and the ability to manage risk at a high-volume container hub.
8. Port of Ulsan, Republic of Korea
Ulsan’s refining, petrochemical and shipbuilding industries make it a natural Korean location for ammonia and hydrogen-related logistics. It has experience with complex liquid and gas cargoes and can connect industrial demand with marine services. Ulsan may become important for import, processing, storage and ship-fuel development, particularly as industrial and maritime decarbonisation pathways converge. As elsewhere, established chemical handling provides a starting point, not a finished bunker solution; ships, terminals and emergency services must be designed for the specific risks of ammonia fuel.
9. Port of Yokohama, Japan
Yokohama is a major Japanese gateway with active hydrogen and clean-energy initiatives. Japan’s interest in importing hydrogen carriers and ammonia for power and industry makes its leading ports strategically relevant to future supply chains. Yokohama’s role may include demonstrations, policy development and links to urban and industrial energy systems alongside shipping. The port will need to balance new-fuel infrastructure with dense population, existing cargo operations and high safety expectations. Its progress will be closely tied to national standards and fuel-import strategies.
10. Port of Newcastle, Australia
Newcastle is transforming from a coal-export powerhouse into a potential clean-energy and hydrogen hub. Its industrial land, harbour infrastructure, rail links and proximity to renewable-energy resources create opportunities for ammonia production, export and related project cargo. The port’s future-fuel relevance is part of a broader regional economic transition. It may first serve export and industrial logistics; marine bunkering could follow if ships and supply chains create sustained demand. This sequence is important when assessing ambitious fuel announcements.
11. Port of Corpus Christi, United States
Corpus Christi’s Gulf Coast energy ecosystem, deep-water access and industrial growth make it a potential location for hydrogen and ammonia projects. The port already serves crude, refined products, LNG-related cargoes and petrochemicals, so it has relevant marine-industrial experience. Its future role could include ammonia export, storage and ship-fuel supply if policy, production and vessel demand align. Safe integration with existing oil, gas and chemical traffic will be critical in a busy industrial harbour.
12. Port of Pilbara, Australia
Western Australia’s Pilbara region is globally known for iron ore but is also attracting attention for renewable energy, hydrogen and ammonia development. Its vast resource base, industrial ports and access to Asian markets create long-term potential for hydrogen-derived exports. Ports such as Port Hedland and Dampier may eventually support ammonia supply chains alongside minerals, though this will require new infrastructure, rigorous safety controls and commercial demand. The region illustrates the scale of the opportunity and the need to avoid treating early concepts as operating facilities.
Build safety and standards before volume
Ammonia bunkering will only succeed if ports treat it as a safety and systems challenge, not merely a commercial opportunity. International rules, local risk assessments, training, compatible vessels, medical preparedness and public communication must be in place before routine transfers begin. Ports should also plan for flexibility: ammonia may be used as fuel, imported as a hydrogen carrier or processed for industrial use, and each pathway may require different infrastructure. Clear lifecycle accounting is essential to distinguish genuinely low-carbon supply from high-emission production.
Frequently asked questions
Is ammonia currently a common marine fuel?
No. It is an emerging option. Pilot activity, engine development and port planning are progressing, but widespread routine bunkering is not yet established.
Is all ammonia green?
No. Its climate impact depends on its production pathway. Only ammonia made with renewable hydrogen and appropriately managed inputs can credibly be described as green.
Can a port handle ammonia cargo and automatically bunker ships with it?
No. Bunkering has additional requirements for ship interfaces, frequency of transfer, safety zones, crew competence, emergency response and operating procedures.