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IMO 2020

Stolt Tankers: Managing the transition to 2020 low-sulphur regulations

Mark Martecchini, President of Stolt Tankers, discusses IMO 2020’s impact on the industry and company.

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Stolt-Nielsen recently conducted an Q&A interview with Mark Martecchini, President of Stolt Tankers, to ask about the company’s transition towards IMO 2020 and the development’s impact on Stolt Tankers:

The past decade has seen the International Maritime Organization (IMO) adopt ever-tightening regulations restricting Sulphur emissions from ships' fuel.

The last change, in 2015, mandated a Sulphur cap of 0.1% for fuel consumed in Sulphur Emissions Control Areas (SECA) in Europe and the United States.

On January 1, 2020, the sulphur cap for fuel consumed by ships on the open sea will be cut from 3.5% to 0.5%. Mark Martecchini, President of Stolt Tankers, discusses this change and the challenges it poses for Stolt Tankers and the wider shipping industry.

Mark, we have been through regulatory changes before, including changes to Sulphur caps in fuel consumed by Stolt Tankers' ships. What's different this time?
Shipping is continually undergoing regulatory changes driven by safety and environmental improvements, which also increase costs. Twenty-five years ago, we saw the introduction of double-hull standards for tankers. From 2007 through to 2015, we managed the introduction of Sulphur Emissions Control Areas (SECAs) and the lower-sulphur fuels mandated by them. Today we are in the midst of installing ballast water treatment systems at a cost of some US$55 million across the fleet. But the 2020 change lowering the Sulphur cap on the open ocean will have a far greater impact. There are 56,000 ships larger than 500 gross tonnes trading today. Most of these will be affected by this SECA standards required 300,000 barrels per day (bpd) of fuel production to shift from 1.0% to 0.1% Sulphur. The 2020 change will require 13 times that volume – 3.6 to 4.0 million bpd – to drop three times as much sulphur. Less than two years from today, 75% of marine fuel consumed will have to change.

The OECD International Transport Forum estimates that the 2015 SECA sulphur reduction increased fuel costs for one sector – container shipping – by $500 million, or an average cost increase of 2.5%, a relatively small impact. But the OECD estimates the impact for 2020 change as $5 to $30 billion on container shipping alone, or a cost increase of 20-85%, depending on fuel price changes and ship size/speed. The magnitude of these changes threatens the survival of the entire shipping industry, unless cost increases are passed on.

What will happen to fuel pricing with these changes?
That's the most studied question in our market today, by ship operators, refiners and fuel suppliers alike. It depends how fuel refiners and suppliers change their refining and blending processes, and what pricing will result from this big shift in demand for an undersupplied product. It also depends on what choices ship operators make in their fuel selection.

Fuel price forecasting is complex; the total marine fuel market is about 5.2 million bpd, or 11% of total fuel consumed globally in all transport sectors. Transport consumed about half of global oil production – which as we've recently seen, is itself subject to price volatitily.

Industry sources have estimated the impact of a ‘base case' shift, from today's IFO 380 to MGO (see sidebars for explanations of fuels and low-sulphur options). So far in 2018, we paid on average $375 per tonne for IFO 380 and $600 for MGO, a premium of $225. Most estimates for the premium in 2020 are in the range of $300-400, but some estimates exceed $600.

That is a large cost increase. This regulation and implementation date has been known for some time; why haven't refiners and fuel suppliers started to increase production of low-sulphur fuel earlier?
Good question. High investment cost is one reason. Refiners under margin pressure prefer to delay investments in non-core business, and marine fuels are a secondary market for them. While we can't speak for others, the sustainability challenge from low-sulphur fuel in 2020 will hit all chemical operators. The market for diesel for cars and trucks is far larger than the marine market and, with increasing negativity in Europe (and elsewhere) on the environmental viability of diesel compared to hybrid and electric cars, we may see demand for low-sulphur fuel simply shifting from land to sea. For all these reasons, refiners are late in making the necessary supply shift.

What about alternative fuel options?
I'm sure alternative low-sulphur fuels will come available – some already are, and we are testing them – but how widely available, and their comparative pricing, remains to be seen. The magnitude of these changes threatens the survival of the entire shipping industry, unless cost increase are passed on. In the past, whenever fuel regulations and the supply chain have changed, brining different formulations and technical challenges, problems from out-of-specification fuel spiked, increasing costs and lost time. We can expect the same to happen in 2020, but worse than before.

Current low-sulphur blends are priced at 5-10% below the price of MGO, compared to IFO 380 which is 38% below MGO. If current price differences are a guide, and in an undersupplied low-sulphur market with a sudden supply shift stock, we expect suppliers to keep prices for these alternatives fuels closer to MGO than to IFO 380, in which case the savings from alternative fuels will not be as significant as some may think.

With so many supply and pricing challenges, is there any change that the IMO will delay implementation of these regulations to 2025? Can ship operators avoid compliance?
I wish that was an option, but there is no indication of this happening. The IMO has considered many studies and believes there will be sufficient low-sulphur fuel available to proceed with implementation. But sophisticated modelling by some market forecasters does show there is a considerable risk of a supply gap of at least one million bpd from the expected four million bpd supply shift. There will be a market-clearing price, but with such a large supply gap the cost penalty could be economically unsustainable for the industry. This risk is missing from the regulatory agenda.

Responding to industry concerns that individual ship operators might try to avoid compliance, the IMO is also expected to implement regulations that ban the carriage of fuel oil that does not comply with the new rules, unless a scrubber is installed on a ship.

Are you considering technical solutions on existing or new ships, to reduce the impact of these regulations?
Stolt Tankers is taking a multifaced approach to low-sulphur fuel. We have taken delivery of 14 deepsea newbuildings in China in the past two years: six of 38,000 dwt from Hudong-Zhonghua, and eight of 33,000 dwt from New Times (in conjunction with our JV partners). We have spent a total of $16 million fitting the last two ships in each series with wet hybrid (open/closed loop) scrubbers. We could expand to a total of 20 ships fitted with scrubbers depending on operating experience and economics.

If and when we build new 6,000 dwt ships for the European coastal trade, we expect to build them with LNG dual-fuel engines. With short voyages, and a ready supply of LNG bunkers at Northern European ports, we believe LNG offers the best option. The rest of the Stolt Tankers fleet will either switch to MGO or alternative fuels, depending on availability, usability and cost efficiency.

What strategies are other ship operators adopting to manage this transition?
We have seen a wide range of strategies being adopted, ranging from LNG for newbuildings, to scrubbers, to switching to alternative fuels. Even within a single industry sector, or within an operator's fleet, different approaches are used depending on ship size, trading area and investment ability. Weak earnings and less LNG availability on tramping trades means tanker and bulker owners are less inclined to fund technical solutions, with most planning on MGO or alternative fuels.

It looks like relatively little investment in technical solutions, either LNG or scrubbers, considering the size of the worldwide fleet. Why is that?
It appears that technical solutions will not have a large impact on fuel supplies by 2020 at the current installation rate. There are 242 ships using LNG as fuel, aside from LNG carriers consuming cargo boil-off. One market source expects 2-3% of the fleet will use LNG fuel by 2020.

Scrubber installations are more numerous than LNG; sources estimate there were 450-500 ships fitted at the end of 2017. As scrubbers have a lower cost and can be retrofitted, estimates of ship installations by 2020 range from 1,000 to 3,000, but this is far less than earlier forecasts.

A number of market sectors have existing mechanisms to pass on fuel costs to customers. With oil tankers, most ships are either on timecharter, where fuel cost is passed directly to the customer, or ships trade in the spot market, where the Worldscale pricing mechanism adjust for changes in fuel cost. Container markets have the BAF (bunker adjustment factor). There is less incentive to make large investments up front when operators can pass costs along, especially when operating margins are thin and future outcomes are uncertain.

What is the expected impact on Stolt Tankers?
Like everyone else studying this change, the impact depends on three things: the change in market fuel prices, the impact of technical solutions or alternative fuels, and the extent of costs passed through to customers.

In 2017, Stolt Tankers consumed 529,000 tonnes of IFO 380 and 124,000 tonnes of MGO across all fleets. If alternative fuels are not available or competitively priced, and for a ‘base case' with MGO priced at $300 over IFO 380 – a conservative estimate, $75 above today's level – then Stolt Tankers would have a fuel cost increase of $160 million. Our operating profit in 2017 was $111 million; we cannot sustainably absorb this extra fuel cost. The freight revenue increase needed to counter this cost varies by trade, but for deepsea trades it works out to around 16%.

So where does that leave Stolt Tankers, and the chemical tanker industry, for that matter?
While Stolt Tankers was profitable in 2017, other publicy reporting chemical tanker operators were not. 2018 is expected to be an even more challenging environment, with fuel costs up and freights flat. While we can't speak for others, the sustainability challenge from low-sulphur fuel in 2020 will hit all chemical tanker operators. Fuel efficiency will become an even more important differentiator, but that is nothing new for us; we already focus on reducing fuel costs. And the Stolt Tankers fleet already benefits from having a larger average ship size compared to others; larger ships generally have a fuel cost advantage per tonne of cargo carried.

While the outcome will be driven by market forces, we will be asking our customers to bear extra costs when the shift happens in 2020, to maintain a viable chemical tanker industry available to carry their cargoes safely around the globe. The magnitude of cost increases is likely to impact some trade flows, especially for commodity products where freight represents a higher percentage of total supply chain cost, and in arbitrage situations. We look forward to working with our customers towards an equitable and sustainable solution to this change – a change which will protect the environment but must now be funded.

Source: Stolt-Nielsen
Photo credit: Stolt-Nielsen
Published: 27 August, 2018

 

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Ammonia

AM Green plans to build green ammonia plant at Indian port

Initiative also includes development of green ammonia handling, storage and bunkering infrastructure, pilot bunkering operations, safety procedures and training programmes, says VOC Port Authority.

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VO Chidambaranar (VOC) Port Authority on Friday (29 May) said it has signed a Memorandum of Understanding (MoU) with India’s ammonia producer AM Green Ammonia to collaborate in the development of a green ammonia production plant.

The plant will have a capacity of one million tonnes per annum (MTPA) at Tuticorin.

The initiative also includes development of green ammonia handling, storage and bunkering infrastructure, pilot bunkering operations, safety procedures and training programmes. 

The project is expected to support the development of green fuel corridors connecting VOC Port with major ports in Europe and Asia, thereby strengthening India’s position in the global green fuels value chain.

VOC Port also signed a Memorandum of Understanding (MoU) with Bureau Veritas (India) Pvt. Ltd., to collaborate on Green Port certification, emissions accounting, ESG reporting, safety validation, development of green bunkering practices, and establishment of a Centre of Excellence for green fuels and sustainability.

The port also plans for an upcoming 750 m³ green methanol bunkering facility.

 

Photo credit: Naveed Ahmed on Unsplash
Published: 3 June, 2026

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Port & Regulatory

Study: Major drop in ship sulphur emissions confirmed following IMO regulations

National Centre for Atmospheric Science study found that the average sulphur content in ship fuel dropped nearly tenfold in open ocean areas following IMO’s 2020 regulation.

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Recent global regulations have significantly reduced sulphur emissions from ships, helping to improve air quality in coastal regions – confirmed by a recent international study led by researchers at the National Centre for Atmospheric Science. 

The research, published in Environmental Science: Atmospheres, used aircraft and ground-based instruments to measure sulphur dioxide and nitrogen oxides emitted by ships in the North-East Atlantic and European coastal waters between 2019 and 2023.

The team found that the average sulphur content in ship fuel dropped nearly tenfold in open ocean areas following the International Maritime Organization’s 2020 regulation, which capped sulphur content in marine fuel at 0.5%. 

Before the change, many ships exceeded the previous 3.5% limit. After 2020, only a small number of ships were found to breach the new standard.

In European sulphur Emission Control Areas (SECAs), such as the English Channel and the Port of Tyne, sulphur levels were even lower – well below the stricter 0.1% limit. Interestingly, ports outside these zones, like Valencia in Spain, also showed low sulphur levels, likely due to EU rules requiring cleaner fuel when ships are docked for extended periods.

This is the first study to use aircraft-based measurements and predictions from the Ship Traffic Emission Assessment Model (STEAM3) to assess ship emissions outside of sulphur control zones since the 2020 regulation came into effect. The findings support the widely held view that ships now emit around seven times less sulphur than before the rule change – an important step toward cleaner air and healthier coastal environments.

Note: The research, titled ‘SO2 and NOx emissions from ships in North-East Atlantic waters: in situ measurements and comparison with an emission model’ can be found here. 

 

Photo credit: shraga kopstein on Unsplash
Published: 8 December, 2025

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Interview

IBIA Annual Convention 2025: ‘Exciting times’ for post IMO 2020 bunker suppliers, states Equatorial

Choong Sheen Mao, Chief Operating Officer, Equatorial, describes to Manifold Times the pre/post IMO 2020 challenges and evolution of bunker suppliers.

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The International Bunkering Industry Association (IBIA) will be hosting its flagship Annual Convention in Hong Kong at the Hong Kong Convention Exhibition & Convention Centre between 18 to 20 November 2025, as part of Hong Kong Maritime Week.

Choong Sheen Mao, Chief Operating Officer, Equatorial Marine Fuel Management Services (Equatorial), speaks to bunkering publication Manifold Times about the challenges of a post IMO 2020 bunker supplier.

MT: How does Equatorial continue to offer customer assurance and maintenance of marine fuel quality to ISO8217 standards despite increasing complexity of bunker fuel blends?

We maintain our focus to provide compliant, quality and competitively priced products to our customers. There is no shortcut. We source our products from a wide range of cargo producers and suppliers. We continue to be strict and vigilant with our testing programme for our products before delivering them to our customers. Equatorial has deepened our engagement with the wider industry to have a better and up-to-date understanding of the existing and new marine fuels.

MT: Can you share the evolution of commercial marine fuel procurement, blending and trading strategies on the back of increasing fuel types (pre/post IMO 2020)?

Pre IMO 2020, the main types of marine fuel procured and consumed by vessels were high-sulphur fuel oil, marine diesel oil and marine gas oil. Trading strategies were therefore closely linked to that within the oil industry.

However, many of the new fuel types are from other industries. For example, biofuels, methanol and ammonia are mainly products from the chemical and agriculture industries. There are marked differences between these industries and the energy industry (in particular, the marine fuels industry). LNG is from the gas industry which is distinct from the oil industry.

Without an existing liquid paper market for many of these commodities (especially as a marine fuel), the price risk management is less straightforward. Furthermore, commodity prices are no longer the sole consideration for price itself. The price of compliance must be considered. This could range from guaranteeing the origin of the marine fuel, its sulphur properties as well as its carbon intensity. The list goes on.

MT: Operational wise, what are the changing role and responsibilities of a bunker supplier to date, compared to before IMO 2020?

The role and responsibility of a bunker supplier have evolved. Fundamentally, it has been about providing quality marine fuels at competitive prices. Quantity assurance has been a critical concern which led to the mandatory implementation of the mass flow meter system for bunkering in the Port of Singapore. Interestingly, due to the nature of credit terms in the bunker industry, bunker suppliers also performed the role of “bankers” by extending favourable credit terms to shipowners and charterers.

These days, post IMO 2020, things have become even more complicated. Today, a bunker supplier retains the abovementioned roles and responsibilities, and much more – it has to ensure compliance with a plethora of rules and regulations. Compliance not only with sulphur cap requirements, but with international and regional sanctions and restrictions unrelated to the quality of the marine fuel itself. In fact, especially with alternative low- and zero-carbon marine fuels, this means compliance with standards, rules and regulations on sustainability such as the European Renewable Energy Directive and/or International Sustainability and Carbon Certification. There is also the need to comply with increasingly stringent safety regulations on both conventional and alternative marine fuels.

In addition to the above, a post IMO 2020 bunker supplier is still expected to supply compliant and quality fuel at competitive prices.

MT: Equatorial is Singapore’s largest local-born supplier; what is the next big thing for the company?

Equatorial continues to adapt and improve with the times, while maintaining its core values – Integrity, Teamwork, Commitment, Proficiency and Quality, and Safety and Environment. The bunker industry is a highly competitive one, and it is our intention to keep our competitive edge and remain relevant. This means that we have had to step out of our comfort zone and embrace the two mega trends of our time – digitalisation and decarbonisation.

We have been early adopters and developers of the electronic bunkering note as part of our own digital bunkering efforts. We have diversified our product offering to include low carbon marine fuels and are proud to be one of the pioneers for bunkering B100 biofuels earlier this year. This was made possible by the arrival of our IMO Type II chemical and oil bunker tankers. These same bunker tankers are also capable for carrying and delivering methanol. Equatorial has invested in an LNG bunkering vessel (LBV) newbuilding that is set to be delivered in Q3 2027. We are also involved in a study to develop low- or zero-carbon ammonia bunkering in Singapore.

These are exciting times.

Note: Choong Sheen Mao is amongst panellists featured in ‘Session Three: Bunker Sellers Panel’ at the IBIA Annual Convention 2025.

Join the Conversation

With over 300 delegates expected, the IBIA Annual Convention 2025 is set to be a defining moment for the marine fuels industry. Registration is now open via the IBIA Annual Convention website.

 

Photo credit: Manifold Times
Published: 31 October 2025

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