The second question for our ‘De-mystifying digitalisation and AI in maritime campaign’  AI comparison project aims to answer the question: What are the top 3 ports to bunker in? Do you think that these ports will also be the global leaders for alternative fuels in 2050?

Below, you will find the outputs from the public versions of five leading AI platforms – ChatGPT, Claude, Copilot, Gemini and Grok 0 but these have been shuffled and anonymised to prevent any biases.

We are excited that our expert guest judge for this question is Alexander Prokopakis, the Executive Director at – the International Bunker Industry Association (IBIA)

He, along with 2 members of the Intent Communications team will be assessing the outputs using this judging criteria. The results will be shared in our monthly newsletter, so do sign up to learn who the winner is! We will include the link to the results at the bottom of this page once they are out!

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LLM1

Sources: Bunkermarket.com (x4), TankTerminals 

The three largest bunkering ports today are Singapore, Zhoushan (China), and Rotterdam (Netherlands). Singapore remains the world’s dominant hub, while Zhoushan and other major Asian ports are growing fastest, and Rotterdam leads Europe’s push into cleaner fuels.

🌍 Top 3 bunkering ports today

These rankings reflect global volume, infrastructure scale, and service breadth.

1. Singapore — The world’s largest bunkering hub by volume, with advanced digitalization, strong regulatory oversight, and rapidly expanding multi‑fuel capabilities.
2. Zhoushan, China — One of the fastest‑growing bunkering regions, supported by large-scale logistics integration and strong state-backed expansion.
3. Rotterdam, Netherlands — Europe’s largest bunkering port, and a leader in alternative fuels, green corridors, and decarbonization initiatives.

Other major players include Shanghai, Hong Kong, Fujairah, and Busan, but the top three above consistently dominate global rankings.

⚡ Will these ports also lead in alternative fuels by 2050?

They are very likely to be among the leaders, but the picture will be more diversified by fuel type and regional policy.

Why these three are well‑positioned

• Scale and capital: Large bunkering hubs can invest earlier and more heavily in ammonia, methanol, biofuels, and e‑fuels infrastructure.
• Policy alignment:
  • Europe (Rotterdam) is aggressively pushing green fuels and carbon pricing.
  • Singapore is positioning itself as a multi‑fuel hub and has already begun supplying biofuels and methanol.
  • China (Zhoushan) is scaling alternative fuel production and port infrastructure as part of national decarbonization plans.
• Industry forecasts: By 2050, 84% of marine fuels are projected to be low‑ or zero‑carbon, with ammonia (36%), biofuels (25%), and e‑fuels (19%) dominating. Ports that invest early in these supply chains will lead.

But leadership may fragment by fuel type

Different fuels require different supply chains, safety regimes, and production geographies:

• Ammonia may favor ports near large renewable‑energy‑based hydrogen production (Middle East, Australia).
• Biofuels may favor regions with strong agricultural or waste‑processing industries (US Gulf, Scandinavia).
• Methanol may expand fastest in ports with strong petrochemical clusters (Houston, Antwerp, Singapore).
• E‑fuels may cluster where cheap renewable power is abundant (Chile, North Africa, Iceland).

So while Singapore, Zhoushan, and Rotterdam will remain central, the alternative‑fuel landscape will be more distributed than today’s oil‑based bunkering market.

🧭 What this means for 2050

• Singapore is the most likely to remain the global #1 multi‑fuel hub.
• Rotterdam is poised to be Europe’s leading green‑fuel port and a global ammonia/methanol pioneer.
• Zhoushan will likely be a top Asian alternative‑fuel hub, especially if China scales green ammonia and methanol production.

But expect new leaders to emerge in regions with abundant renewable energy and strong policy incentives.

If you’re comparing these ports for investment, policy planning, or fleet‑fueling strategy, what’s the main angle you’re exploring—future fuel availability, cost competitiveness, or long‑term infrastructure risk?

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LLM2

 

Sources: unclear

What are the top 3 ports to bunker in? Do you think that these ports will also be the global leaders for alternative fuels in 2050?

 

The world of bunkering (ship refueling) is currently dominated by three massive hubs, but the race to 2050 is shifting the goalposts from “who has the most oil” to “who has the most green molecules.”

The Top 3 Bunkering Ports Today

As of 2025/2026, the global leaderboard remains relatively consistent, defined by high traffic and strategic geography:

1. Singapore: The undisputed heavyweight. It handles roughly 20% of the world’s bunkering, with record sales reaching over 56 million tonnes in 2025. Its proximity to the Malacca Strait makes it a mandatory stop for East-West trade.
2. Rotterdam (Netherlands): The gateway to Europe. It is the largest port in the West, anchoring the Amsterdam-Rotterdam-Antwerp (ARA) region.
3. Fujairah (UAE): Positioned just outside the Strait of Hormuz, it serves as the critical refueling station for the Middle East and Indian Ocean routes. (Note: China’s Zhoushan is a rapidly rising contender and has occasionally traded ranks with Fujairah for the #3 spot).

Will They Lead in 2050?

The short answer is: Likely yes, but with a different business model. While the “Big Three” have the infrastructure and capital to stay on top, the shift to alternative fuels (green methanol, ammonia, and hydrogen) introduces new competitive dynamics:

• Singapore and Rotterdam as “Fast Movers”: These two are currently leading the world in “Green Shipping Corridors.” They aren’t just waiting for 2050; they are already conducting world-first trials for ship-to-ship methanol bunkering and bio-LNG. Their dominance is likely to continue because they are evolving into multi-fuel hubs rather than just oil depots.
• The Rise of “Resource Ports”: By 2050, the leaders might not just be those on trade routes, but those near cheap renewable energy. We may see ports in Australia, Chile, and North Africa become global leaders because they can produce green ammonia/hydrogen locally at a lower cost than Singapore (which has limited land for renewables).
• Fujairah’s Pivot: Fujairah sits in a region with massive solar potential and existing ammonia expertise. While it is currently an oil giant, its future leadership depends on how quickly the UAE pivots its energy exports toward green hydrogen derivatives.

Verdict: Singapore and Rotterdam are the safest bets for 2050 leadership due to their “ecosystem” advantage (finance, regulation, and logistics). However, they will face stiff competition from “energy-exporting” ports that can offer green fuels at a lower production price.

Would you like me to look into which specific alternative fuel (e.g., green ammonia vs. methanol) is currently winning the order book for new ships?

What sources did you draw on for this answer?

As an AI, I don’t draw from a single database or a specific set of proprietary documents to answer your questions. Instead, my responses are generated based on a vast body of information I was trained on, which includes:

• Publicly available text: This includes books, articles, websites, and technical documentation.
• Scientific and academic data: Research papers, historical records, and mathematical principles.
• Code and structured data: Programming languages and datasets that help me understand logic and patterns.

How I verify information

When you ask about a current event or a specific fact, I use a combination of my internal training and, when necessary, real-time search tools to find the most up-to-date and reliable information from reputable news outlets, government institutions, and peer-reviewed sources.

A note on accuracy

While I aim for high precision, I am an AI, not a person with lived experience or a static encyclopedia. If I’m ever unsure or if a topic is subjective, I’ll try to provide context or multiple perspectives rather than a single “truth.”

Would you like me to provide specific citations or links for the topic we were just discussing?

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LLM3

What are the top 3 ports to bunker in? Do you think that these ports will also be the global leaders for alternative fuels in 2050?

 

Sources: 45 sources including Manifoldtimes, shipandbunker, mpa.gov.sg, bunkerone, ShipUniverse, seatrade-maritime, partnershipsforinfrastructure, Lloyd’s List, natrualgasintel.com, bunkermarket.com, dnv.com, royalpetroleumpr.net, ShipandBunker, gulf-bunkering, YouTube, sciencedirect.com, LinkedIn, hellenicshippingnews.com

The top 3 ports for bunkering (ship refueling with marine fuels) as of early 2026, based on the most recent available data (primarily 2024 full-year volumes, with 2025 showing continued trends and record highs in some cases), are:

1. Singapore — The undisputed global leader, with around 54.92 million metric tonnes (mt) in 2024 and a record ~56-56.77 million mt in 2025. It dominates due to its strategic location on major East-West shipping routes, exceptional infrastructure, efficiency, and reliable supply chains.
2. Rotterdam (Netherlands, part of the ARA region) — Europe’s largest bunkering hub, with approximately 9.8 million mt in 2024 (and similar levels in recent reports). It benefits from strong logistics, proximity to major refineries, and growing investments in cleaner fuels.
3. Fujairah (UAE) — A key Middle East hub outside the Strait of Hormuz, with about 7.5 million mt in 2024. It serves as a vital refueling point for vessels in trans-regional trade, with significant storage capacity and competitive pricing.

(Note: Zhoushan in China has been very close to Fujairah in recent rankings, often fourth but occasionally challenging for third place due to rapid growth; however, Fujairah holds the edge in most 2024/2025 listings.)

Regarding whether these ports will also be the global leaders for alternative fuels (such as LNG, methanol, ammonia, hydrogen, biofuels, and other low/zero-carbon options) in 2050: Yes, it’s highly likely they will remain among the top leaders, though the landscape will evolve significantly and become more multi-polar.

• Singapore is aggressively positioning itself as a multi-fuel hub. It has seen strong growth in alternative fuel sales (e.g., nearly 2 million tonnes in 2025), is issuing licenses for LNG, methanol, and bio-methane, developing ammonia bunkering standards, and pursuing infrastructure for green fuels. Its proactive policies, trials, and collaborations make it a strong frontrunner to lead in alternative marine fuels by mid-century.
• Rotterdam is a pioneer in Europe for sustainable bunkering, with heavy investments in LNG, biofuels, and emerging e-fuels/ammonia infrastructure. Europe’s strict regulations (e.g., FuelEU Maritime) and green corridor initiatives will drive continued leadership here.
• Fujairah has potential but may lag slightly compared to the other two in aggressive alternative fuel adoption so far. Its strengths lie in traditional fuels and location, but it could adapt if Middle East energy producers pivot to green hydrogen/ammonia exports.

By 2050, under IMO net-zero ambitions and global decarbonization, bunkering will shift dramatically toward alternative fuels. Leading ports will be those investing now in supply chains, safety standards, and infrastructure for green methanol, ammonia, and hydrogen. Singapore and Rotterdam are already frontrunners in pilots, standards, and partnerships (e.g., green corridors). Other ports like Shanghai, Ningbo-Zhoushan (building on current growth), or emerging hubs in the US Gulf Coast/China could rise, but the established trio’s scale, experience, and current momentum give them a strong edge to stay dominant. Projections from reports like DNV’s Maritime Forecast to 2050 emphasize that major ports equipping for CO₂ offloading and alternative fuels will capture the transition. Singapore, in particular, is often highlighted as a model for multi-fuel readiness

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LLM4

What are the top 3 ports to bunker in? Do you think that these ports will also be the global leaders for alternative fuels in 2050?

 

Sources: Gulf Bunkering (x2), Bunker Market (x2), Mid Asia Bulk

Top 3 Bunkering Ports (by 2024 volume)

1. Singapore — 54.92 million MT Singapore dominates global bunkering with over 54.9 million metric tons supplied in 2024, representing more than 20% of worldwide marine fuel demand. Gulf Bunkering Its position at the crossroads of East-West shipping routes, advanced digital infrastructure, and progressive regulation make it untouchable at the top.
2. Rotterdam — ~9.8 million MT Rotterdam’s slight volume contraction reflects its aggressive pivot toward LNG, methanol, and future fuels mandated by Fit-for-55 and FuelEU Maritime Bunker Market, making it Europe’s bunkering capital and the continent’s alternative fuels leader.
3. Fujairah — ~7.5 million MT Located at the crossroads of major global shipping lanes, outside the Strait of Hormuz, Fujairah is a vital stop for vessels transiting between Europe, Asia, and Africa. Mid Asia Bulk It recently launched its first biofuel bunkering operations as well.

(Note: Zhoushan at ~7.04 million MT is closely contesting Fujairah for 3rd place and is rapidly growing.)

Will They Still Lead on Alternative Fuels in 2050?

This is where it gets interesting — the answer is “probably yes, but not equally”:

Singapore — Very Likely Yes. It’s already positioning itself aggressively. Singapore’s biofuel sales grew nearly 70% in 2024, while LNG bunkering volumes more than quadrupled, demonstrating the facility’s adaptability. Gulf Bunkering Its regulatory framework, infrastructure investment, and geographic irreplaceability give it a strong runway to lead on ammonia, methanol, and hydrogen bunkering by 2050.

Rotterdam — Almost Certainly Yes. Of the three, Rotterdam may actually punch above its weight in the alternative fuels race. It’s already the most advanced on green methanol and LNG, and the EU regulatory environment (FuelEU Maritime, carbon pricing) will keep forcing innovation. It could well become the global benchmark for clean bunkering even if its total volume lags Asia.

Fujairah — Less Certain. Fujairah’s strength is its geography and its role as a conventional fuel hub. While it’s dipping its toes into biofuels, it faces a structural challenge: the UAE’s economy is still deeply tied to fossil fuel production, which may slow its pivot. That said, its strategic location won’t go away — if green ammonia or hydrogen produced from Gulf solar power becomes a major marine fuel, Fujairah could re-emerge as a key supply point.

The wildcard: Asian ports including Zhoushan and Shanghai delivered the fastest growth Bunker Market in conventional bunkering, and China is investing heavily in green fuel infrastructure. By 2050, a Chinese port could realistically challenge for a top-3 alternative fuels spot.

In short — Singapore and Rotterdam look well-placed to remain leaders in both volume and innovation. Fujairah will need to evolve more deliberately to stay in the top tier for alternative fuels specifically.

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LLM5

What are the top 3 ports to bunker in? Do you think that these ports will also be the global leaders for alternative fuels in 2050?

 

Sources: Bunker Market, S&P Global, Reuters (x2), Port of Rotterdam, World Ports (x6), LinkedIn, OECD.org, Lloyds Register, Thetius, ShipUniverse, Clarksons, Sciencedirect.com

Here’s an up-to-date, pragmatic view of the top 3 bunkering ports today — based on the latest global bunker volume rankings — and a reasonable outlook on whether they can also lead the alternative fuels transition by 2050.

📊 Top 3 Global Bunkering Ports (2025/2026)

1. Port of Singapore – Singapore
   Still by far the largest bunkering hub in the world, supplying over ~50+ million tonnes of marine fuel annually — more than three times the next largest port.
2. Port of Rotterdam – Netherlands (Europe’s largest)
   A critical gateway for North Sea and trans-Atlantic traffic, with volumes around ~9–10 million tonnes and strong infrastructure development.
3. Port of Fujairah – UAE (Middle East)
   A deepwater bunkering hub outside the Strait of Hormuz handling ~7–7.5 million tonnes — third globally by volume.

📍Runners-up:
Zhoushan (China) is rapidly approaching Fujairah and often ranks #4, with strong growth and strategic logistics.

🔋 Will These Ports Also Lead in Alternative Fuels by 2050?

The transition to low/zero-carbon marine fuels (e.g., LNG, biofuels, methanol, ammonia, hydrogen) is one of the biggest shifts in shipping — but leaders won’t necessarily be the same as today’s bunkering volume leaders. Here’s how the top three stack up:

🇸🇬 Singapore — Most Likely to Remain a Leader

✅ Why:

• Has begun scaling alternative fuel offerings, including LNG and biofuel bunkering, and is pioneering digital bunkering systems (e-BNDs) to improve transparency and logistics.
• Government and port authorities are pushing strategic plans for low-carbon fuels as part of broader decarbonisation agendas.
• Its strategic location on key global shipping routes means demand will persist even as fuel types evolve.

⚠️ Challenges:

• Current alternative fuels share is still small relative to total volume.
• The pace of infrastructure expansion for next-gen fuels (e.g., ammonia, hydrogen) will be crucial.

👉 Outlook: Highly likely to stay at or near the top as global marine fuel hubs transition into multi-fuel bunkering centres.

🇳🇱 Rotterdam — Strong Contender in Alternative Fuels

✅ Why:

• Already one of the world’s most advanced bunkering ports for LNG, methanol and biofuels, with proactive investments in green infrastructure.
• European policy (Fit-for-55, FuelEU Maritime) supports decarbonisation, which pushes ports like Rotterdam to adopt cleaner fuels early.
• Its role as a European energy hub gives strong access to clean energy feedstock.

👉 Outlook: Very likely to be a global leader in alternative fuel bunkering by 2050 — even if its total volume compared to Singapore remains smaller.

🇦🇪 Fujairah — Strategic but Slower Transition

✅ Strength:

• Still a top‐three bunkering location with a strategic position for East-West traffic.
• Has begun supplying bio-bunker blends in pilot operations.

⚠️ Limitations:

• Historically focused on conventional fuel trade; alternative fuel volumes remain modest.
• Policy and infrastructure for next-gen fuels like ammonia or hydrogen are still early in development.

👉 Outlook: Likely to remain an important transit bunkering centre — but not necessarily a leader in alternative fuel bunkering unless investment accelerates significantly.

🌍 Emerging Trends to Watch (2050)

• 🛠 Infrastructure & storage hubs (especially for hydrogen/ammonia) may shift some bunkering leadership to ports near renewable feedstock (e.g., North Sea, Middle East green H₂ producers).
• 🚢 LNG bunkering could be a transitional fuel phase, with more ports gaining capacity (185+ ports now offer LNG bunkering).
• 🧭 New corridors and green fuel supply chains could elevate ports in Australia, Scandinavia, and the Gulf of Mexico for future fuels.

📌 Summary

Port	Top-3 Today?	Likely Alt-Fuel Leader by 2050?
Singapore	✔️	✔️ (most likely)
Rotterdam	✔️	✔️ (especially in low-carbon fuels)
Fujairah	✔️	⚠️ (important but uncertain without more investment)
Zhoushan	Near Top 3	⚠️ (huge volume growth, but transition plans matter)

If you want, I can break down the expected alternative fuel bunkering infrastructure (LNG, methanol, ammonia, hydrogen) by key port region — including which are building dedicated facilities now.
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Find out the winner and the identities of the LLMS here.

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