Overview
The marine fuel sector is decarbonising. International Maritime Organization (IMO) requirements and EU legislation is driving this change alongside consumer demand for low carbon solutions.
These drivers have prompted shipowners to invest in alternative marine fuels including; marine biodiesel, bio-methanol, grey methanol, LNG, ammonia and hydrogen.
Argus provides pricing, insights, and intelligence for the fast-growing alternative marine fuels market with independent news, analysis, and market commentary on emerging changes and trends so you can stay ahead.

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Regulation gap driving low German B100 prices
Regulation gap driving low German B100 prices
London, 15 June (Argus) — B100 marine biodiesel has been trading at very low prices at German ports this year, primarily — market participants said — because mismatched regulations have created an arbitrage between different regulatory regimes. B100, which is 100pc Advanced fatty acid methyl ester (Fame), has been selling at the German port of Hamburg for around €700-800/cbm in the first half of 2026, equivalent to about $914-1,044/t. This compares with the same fuel sold dob Netherlands, which averaged $1,210.10/t during 22 January-22 May. The lower price is achieved by two mechanisms, participants said. The first is a reduction in the total cost of the fuel, created by the value of German renewable fuel tickets generated via the German GHG quota system. Maritime supplies are not currently eligible for quota generation in Germany, since international shipping was excluded from the scope of the EU renewable energy directive (RED) III transposition into German law . But, separately, such fuels can nevertheless qualify for renewable ticket status if they are taxed as road transport fuels, under article §52 of Germany's energy tax law (EnergieStG). Some of the marine product sold at low prices meets EN14214 specifications, widely considered to be the "gold standard" for biodiesel products heading into road fuels. According to the German General Customs directorate, it is currently permissible for biofuels physically used in maritime transport to be counted towards the German GHG quota system, provided they meet the tax requirement. This interpretation has not been altered by the latest amendment to the quota system rules, which entered into force on 5 June. As a result, some market participants have been able to generate quotas from supplying advanced Fame into the marine sector, allowing buyers to benefit from an effective price discount reflecting the value of the quotas. The second mechanism enabling lower prices is the possibility of reclaiming the energy tax paid after the fuel has been used in international shipping. Under German tax law, energy products that have been demonstrably taxed can qualify for tax relief if they are subsequently used for exempt purposes, such as commercial maritime transport. This applies to biodiesel, meaning that buyers may initially pay the full taxed price and later apply for a refund once the fuel's maritime use is proven. This creates a structural inconsistency — taxation is required to generate renewable fuel tickets, while tax relief remains available after maritime use. The process can take many months, however, and can only be initiated after the fuel volume is completely used, which means those taking this path require credit lines and imposes some constraints on use of the loophole. Further, participants told Argus that obtaining the reduced price is only viable by bunkering B100 and other, more commonly used, blends such as B30 would not qualify. Many vessels do not burn B100 because of concerns about engine compatibility and the possible impact on warranties provided by engine manufacturers. Shipowners told Argus that often a prior approval from the engine manufacturer may be required to burn B100 while retaining warranty and insurance protection in case of any future issues. Some added that the US-Iran war has contributed to "liquidity pressures" for many companies, resulting in hesitation to take on the fuel while awaiting a tax rebate that will arrive many months after the fuel purchase. The German Federal Council (Bundesrat) has acknowledged the issue and indicated its intention to close what it describes as a loophole arising from the interaction of tax and quota rules. The concern is that fuels used in maritime transport are effectively being used to meet road transport decarbonisation targets, undermining the integrity of the system. While no concrete cases of abuse have been formally identified by customs authorities, the current framework allows for such outcomes. Some market participants have warned that any tightening of the rules could potentially be applied in a way that affects existing transactions, although there is no official confirmation of retroactive measures. Some suppliers that had previously offered discounted B100 have reportedly withdrawn such offers since March, reflecting growing regulatory uncertainty. By Hussein Al-Khalisy and Marcel Rothenstein Send comments and request more information at feedback@argusmedia.com Copyright © 2026. Argus Media group . All rights reserved.
Swiss WinGD sells first ethanol -fuelled marine engines
Swiss WinGD sells first ethanol -fuelled marine engines
Sao Paulo, 19 May (Argus) — Swiss marine engine manufacturer Winterthur Gas and Diesel (WinGD) has sold its first two ethanol-fuelled marine engines. It said last year that it would begin offering the technology . The engines will power two ore carriers to be built for China's Shandong Shipping to operate under charters for Brazilian mining group Vale. WinGD will build the engines by modifying its methanol-fuelled model, as ethanol and methanol share similar properties and combustion characteristics. "This is a clear signal that the shipboard technology and fuel infrastructure around ethanol as a marine fuel are ready, giving confidence to others considering ethanol as an option for maritime decarbonisation," said WinGD executive director of sales Volkmar Galke. Ethanol has gained traction as a marine fuel because of its potential to comply with greenhouse gas (GHG) emissions regulations. Last week, the IMO Marine Environment Protection Committee (MEPC 84) added Brazil's second-crop corn-based ethanol as a recognised fuel pathway in its life-cycle assessment (LCA) guidelines for marine fuels . Although ethanol is not a drop-in fuel, meaning vessels require retrofitting to run on it, it can absorb surplus production from countries such as Brazil. But FuelEU Maritime and the EU Renewable Energy Directive (RED III) — European regulations considered the world's most advanced for shipping — do not accept biofuels made from food crops, known as first-generation fuels, for emissions reduction because of food security risks. By Natália Coelho Send comments and request more information at feedback@argusmedia.com Copyright © 2026. Argus Media group . All rights reserved.
Rotterdam 1Q bunker sales fall sharply
Rotterdam 1Q bunker sales fall sharply
London, 16 April (Argus) — Demand for conventional marine fuels in Rotterdam fell by 28pc on the year in the first quarter of 2026, after the Netherlands implemented the EU's revised Renewable Energy Directive (RED III) at its ports. The decline also reflects disruption linked to the US-Iran war. Market participants reported a drop in Rotterdam bunker demand even before the war, as some shipowners shifted fuelling to neighbouring ports to avoid price premiums created by the Netherlands' unilateral transposition of RED III marine mandates from 1 January. Sales of very-low sulphur fuel oil (VLSFO) fell most sharply, down by 44pc from a year earlier to about 440,000t in the first quarter. High-sulphur fuel oil (HSFO) volumes dropped by 25pc to about 619,000t, while ultra-low sulphur fuel oil (ULSFO) sales fell by 13pc. Marine gasoil (MGO) and marine diesel oil (MDO) demand declined by 8pc on the year to around 361,000t. Some shipowners instead opted to bunker in neighbouring Antwerp, which forms part of the ARA hub and offers lower conventional bunker prices without requiring route changes. Others prioritised bunkering at Gothenburg in Sweden or ports in Germany, market participants said. Price differentials supported the shift. Between early February and the end of March, MGO dob Rotterdam prices averaged $12.75/t higher than the Antwerp equivalent, while VLSFO dob Rotterdam held an average premium of roughly $14.50/t over the same period. Tighter global supply has added further pressure. The effective closure of the strait of Hormuz sharply reduced bunker availability in Singapore, increasing competition for VLSFO and MGO cargoes that would otherwise be exported to the ARA hub. After the start of the US-Iran war, Rotterdam MGO prices rose by 75pc to an average of about $1,186/t in March, while VLSFO prices climbed by 57pc to an average of $710.50/t. By Gabriel Tassi Lara and Hussein Al-Khalisy Send comments and request more information at feedback@argusmedia.com Copyright © 2026. Argus Media group . All rights reserved.
Rotterdam biomarine sales fall in 1Q
Rotterdam biomarine sales fall in 1Q
London, 16 April (Argus) — Marine biodiesel blend sales fell by 35pc in the first quarter compared with the fourth quarter of last year, but were roughly steady compared with the first quarter of 2025. Participants pointed to lacklustre demand in January and February, with an uptick in March as the US-Iran war led to Dutch B100 flipping to a discount against MGO . But these discounts failed to support significant demand growth , as volatility weighed on marine fuel trading activity and buyers hesitant to make significant changes to their procurement strategy based on an acute price spread. Rotterdam's loss has been Singapore's gain. Data from the Port of Singapore showed roughly a 13pc growth in marine biodiesel blend sales on the quarter to the first quarter of 2026. This demand is attributed to FuelEU Maritime requirements, which came into effect in 2025 and require ships coming in, out of, and operating within EU waters to reduce emissions. Shipowners bunkering marine biodiesel in Singapore for EU-bound voyages can use it for FuelEU Maritime compliance. And compliance generated from bunkering marine biodiesel in Singapore can then be used to achieve compliance on vessels operating European routes, via the pooling mechanism, in which obligated companies can combine their compliance balance with other vessels. Bio-LNG sales firmed by 28pc on the quarter in the first quarter of 2026, generating over-compliance which has sold at a significant premium to cost . This may have also weighed on marine biodiesel blend sales, as bio-LNG volumes bunkered would have generated FuelEU compliance surpluses that can then be sold on to vessels that do not have LNG-capable engines. This would then potentially dampen FuelEU-driven demand from those vessels for marine biodiesel blends, and many shipowners did opt to buy surpluses to meet FuelEU requirements. But this dynamic may soon change because of the US-Iran war, where the FuelEU used cooking oil methyl ester (Ucome)–MGO abatement ex-emissions trading system (ETS) price was negative on 7 April. It has since returned to positive levels, marked at €61.45/tCO2e on 15 April. But this remains significantly below FuelEU compliance surplus levels, with offers seen at €175-210/tCO2e, meaning it is currently cheaper to generate compliance using marine biodiesel blends than to buy surpluses to meet the FuelEU requirements. By Hussein Al-Khalisy Rotterdam bunker sales t Fuel 1Q 2026 4Q 2025 Q1 2025 q-o-q % y-o-y % ULSFO 162,142 219,039 187,031 -26 -13 VLSFO 439,804 745,786 789,218 -41 -44 HSFO 619,010 804,962 829,197 -23 -25 MGO/MDO 360,517 402,781 393,071 -10 -8 Conventional total 1,581,473 2,172,568 2,198,517 -27 -28 Biofuel blends 104,630 161,934 104,037 -35 1 LNG (m3) 267,454 192,433 261,200 39 2 Bio-LNG (m3) 15,260 11,932 na 28 na Biomethanol 996 na 5,490 na -82 Port of Rotterdam Send comments and request more information at feedback@argusmedia.com Copyright © 2026. Argus Media group . All rights reserved.
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Webinars
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On demand Webinar - 12/06/25SAF Horizons - Global Market Dynamics, Policy Shifts, and Forecasts
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On demand Webinar - 21/05/25Zooming into the US feedstock market and futures contracts
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Alternative marine fuels key prices
Argus Marine Fuels features a comprehensive range of alternative marine fuels prices (in $/t VLSFO, $/t HSFO, and $/t MGO equivalents and $/mn Btu).
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Global alternative fuels vessel databases
Argus Marine Fuels includes access to proprietary data in three downloadable databases, providing essential insights into the changing marine fuels market:

Spot deals and firm quotes
This list of spot deals gives buyers and sellers understanding where they stand price-wise compared with their competitors. Argus’ daily deals/quotes detail the port, type of fuel, size of the deal, price, delivery method and delivery dates. It does not include counterparties’ names.
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Alternative fuels vessels and supplier list
Argus lists vessels that are burning alternative marine fuels, including methanol, biofuels, ammonia, hydrogen, LNG, LPG, as well as those running on batteries. The database is updated every month.
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Scrubbers
The database is updated every month. It contains over 4,300 records and counting.
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