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NYK to launch Japan’s first antioxidant for biodiesel bunker fuel in August

When added to biofuel, BioxiGuard slows progression of oxidative degradation and helps deter issues such as metal corrosion, strainer blockage, and cleaning-system fouling often triggered by oxidised fuel.

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Japan’s first antioxidant by NYK for biodiesel bunker fuel set to release in August

Nippon Yuka Kogyo (Nippon Yuka), an NYK Group company specialising in chemical R&D as well as the manufacture and sale of chemical products, on Wednesday (21 May) announced the upcoming release of BioxiGuard, the Japan’s first antioxidant specially developed for marine biodiesel, from 10 August.

NYK said compared with conventional petroleum-based fuels, biofuel contains a higher proportion of unsaturated fatty acids, making it more susceptible to oxidative degradation. Once oxidised, the biofuel can produce acidic substances and sludge, adversely affecting vessel fuel efficiency by reducing the fuel’s calorific value.

Developed by Nippon Yuka based on property analyses of the biofuel used in NYK-operated vessels, BioxiGuard is specifically formulated to enhance the oxidation stability of biodiesel. When added to biofuel, BioxiGuard slows the progression of oxidative degradation and helps deter issues such as metal corrosion, strainer blockage, and cleaning-system fouling often triggered by oxidised fuel.

According to laboratory tests conducted by Nippon Yuka researchers, the addition of BioxiGuard at a concentration of 1 part per 500 resulted in an approximate 50% reduction in the rate of biofuel degradation compared to untreated biofuel. 

This significant improvement underscores the potential for vessel operators to not only extend the useful life of biofuel on board but also maintain more stable and cost-effective vessel operations.

 

Photo credit: NYK
Published: 22 May, 2025

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Bunker Fuel

Singapore: Bunker sales volume raises to year record high of 4.88 million mt in May

Bio-blended variants of marine fuel oil jumped 671.7% to 40,900 mt when compared to figures seen in May 2024.

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SG bunker performance May 2025

Bunker fuel sales at Singapore port inched forward by 1.1% on year in May 2025, the highest volume seen in 2025, according to Maritime and Port Authority of Singapore (MPA) data.

In total, 4.88 million metric tonnes (mt) (exact 4,878,100 mt) of various marine fuel grades were delivered at the world’s largest bunkering port in April, up from 4.83 million mt (4,826,800 mt) recorded during the similar month in 2024.

Deliveries of marine fuel oil, low sulphur fuel oil, ultra low sulphur fuel oil, marine gas oil and marine diesel oil in May (against on year) recorded respectively 1.89 million mt (+8.6% from 1.74 million mt), 2.45 million mt (-7.2% from 2.64 million mt), 1,200 mt (from zero), 1,700 mt (-88% from 14,300 mt) and zero (from zero).

SG bunker port performance May 2025

Bio-blended variants of marine fuel oil, low sulphur fuel oil, ultra low sulphur fuel oil, marine gas oil and marine diesel oil in May (against on year) recorded respectively 40,900 mt (+671.7% from 5,300 mt), 95,800 mt (+97.9% from 48,400 mt), 700 mt (from zero), zero (from zero) and zero (from 300 mt). B100 biofuel bunkers, introduced in February this year, recorded 1,900 mt of deliveries in May.

LNG and methanol sales were respectively 45,000 mt (-7.8% from 48,800) and zero (from 1,600 mt). There were no recorded sales of ammonia for the month and so far in 2025.

Related: Singapore: Bunker fuel sales increase by 4% on year in April 2025
RelatedSingapore: Bunker fuel sales increase by 0.5% on year in March 2025
Related: Singapore: Bunker fuel sales down by 8.1% on year in February 2025
Related: Singapore: Bunker fuel sales down by 9.1% on year in January 2025

A complete series of articles on Singapore bunker volumes reported by Manifold Times tracked since 2018 can be found via the link here.

 

Photo credit: Maritime and Port Authority of Singapore
Published: 16 June 2025

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Biofuel

LR: “Whitchampion” becomes first bunker tanker certified to load, carry and blend FAME B100 onboard

Second Whitaker tanker, Whitchallenger, will be undergoing a similar approval process and is expected to be certified later this year.

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Whttaker Whitchampion MT

Classification society Lloyd’s Register (LR) on Thursday (12 June) claim UK-based bunker operator John H. Whitaker (Tankers) Limited’s bunker tanker Whitchampion has become the first in the industry to load, carry and blend Fatty Acid Methyl Esters (FAME B100) onboard under IBC Code and MARPOL Annex II regulations.

The development occurred after LR issued a chemical certification to allow Whitchampion to perform onboard blending of biofuels with petroleum distillates and residual fuel oils. The operation is authorised within UK coastal waters under a Tri-Partite Agreement between the Isle of Man Flag and the UK Maritime and Coastguard Agency (UKMCA).

A second Whitaker tanker, Whitchallenger, will be undergoing a similar approval process and is expected to be certified later this year.

At present, bunker tankers certified under MARPOL Annex I are limited to carrying blends no more than 30% FAME under IMO regulations. Oil Fuels with higher bio-content fall under International Bulk Chemical Code (IBC Code) and MARPOL Annex II, typically requiring full chemical tanker status. That regulation has, in effect, frozen out a significant portion of the conventional bunker tanker fleet from supporting mid-to-high-range biofuel blending.

Whitaker’s Whitchampion is the first LR-classed vessel to bridge that gap. Through comprehensive Gap Analysis and Risk Assessment against the IBC Code and MARPOL Annex II requirements, LR developed an approach which involved mitigation of the assessed risks. This led to obtaining waivers/exemptions from the Flag Administration allowing this Annex I bunker tanker to gain chemical certification to carry FAME as cargo, without needing to convert to full chemical tanker status.

The successful delivery of dedicated onboard training on the safe handling of FAME has also led to UKMCA approval and a FAME Restricted endorsement to the existing Oil Tanker Dangerous Cargo Endorsement (DCE) for the crew.

Tim Wilson, Principal Specialist Fuels and Emissions, LR, said: “This certification demonstrates a credible and commercially viable route for existing bunker tankers to participate in the energy transition. It sets a clear blueprint for others to follow, enabling owners to consider the possibility of adapting existing bunker tankers for sustainable fuel delivery without resorting to prohibitively expensive conversions or replacement with a chemical tanker.”

Peter Howard, Technical Director at Whitaker Tankers, added: “This certification is the result of focused determination from all involved and underlines Whitaker’s commitment to providing clients with the flexibility they need to meet their decarbonisation goals. We’re proud to lead the way in this space with Whitchampion and look forward to progressing a similar certification with LR for her sister ship Whitchallenger later this year.”

 

Photo credit: Lloyd’s Register
Published: 13 June 2025

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Alternative Fuels

GCMD-BCG survey: 77% of shipowners, operators view net zero as high strategic priority

Survey also found the use of bio-blended bunker fuels has more than doubled to 46% and methanol use has increased from 3% to 6% but uptake of more nascent technologies such as ammonia remains limited.

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GCMD-BCG survey: 77% of shipowners, operators view net zero as high strategic priority

The Global Centre for Maritime Decarbonisation (GCMD) on Wednesday (11 June) said a survey found 77% of shipowners and operators now consider achieving net zero a high priority in their strategy, up from 73% two years ago.

This was among the findings of the second edition of the Global Maritime Decarbonisation Survey, jointly conducted by GCMD and Boston Consulting Group (BCG) between October 2024 and February 2025.

The survey gathered 114 responses from shipowners and operators across a range of vessel types, fleet sizes, and regions. While the survey was conducted before the International Maritime Organization’s (IMO) MEPC 83 session in April, its findings already reflected sustained commitment across the industry. The outcomes of MEPC 83—introducing new regulatory targets and incentives—are expected to reinforce these ambitions and further accelerate momentum.

Survey results show that 60% of respondents have now set net-zero targets (up from 54%), while the use of bio-blended fuels has more than doubled to 46%, and methanol use has increased from 3% to 6%. However, uptake of more nascent technologies—such as ammonia, wind-assisted propulsion systems, solar panels, super-light ships, and air lubrication—remains limited.

The survey also reflects the industry’s desire for policies and regulations to create a level playing field. Nearly three-quarters of respondents identified either compliance measures or financial incentives as the most important policy objectives. A level playing field will ensure that early adopters are not competitively disadvantaged on cost and stakeholders with limited resources can benefit from financial support to overcome economic barriers.

The survey also gathered insights from key bunkering ports, whose support is critical for maritime decarbonisation. Most surveyed ports have roadmaps and dedicated teams focused on initiatives to facilitate maritime decarbonisation, and all of them, namely Port of Antwerp-Bruges, Port of Long Beach, Port of New York and New Jersey, Port of Rotterdam, and Port of Singapore, offer green incentives. 

A significant concern for ports, however, is the lack of demand certainty from shipping companies for both low-carbon fuels and Onboard Carbon Capture Systems (OCCS). This ‘chicken-and-egg’ dilemma hinders ports to take on the investment decision to develop the requisite infrastructure, though the recently introduced GHG pricing mechanism is expected to strengthen demand signals for low-carbon fuels.

Dr Sanjay C Kuttan, Chief Strategy Officer of GCMD, said, “Positive developments in maritime policy, especially from the IMO, which further tighten limits on GHG emissions, along with the increased ambitions voiced by survey respondents, are encouraging signals. Greater cooperation with the ports and pertinent stakeholders across the various value chains will be required to address challenges across the broader ecosystem. With the right investments and collaborative actions, the maritime industry can chart a course to a future where sustainable decarbonisation and commercial success can co-exist.

Anand Veeraraghavan, Managing Director and Senior Partner of BCG, said, “It is encouraging to see that even in the face of global uncertainties, the maritime industry’s decarbonisation ambitions remain intact and steadfast. The recent MEPC outcomes mark a pivotal step forward, sharpening demand signals with incentives for exceeding compliance goals and penalty mechanisms for shortfalls. Now is the time for the industry—both ships and ports—to build on this momentum.

Note: The second edition of the GCMD–BCG Global Maritime Decarbonisation Survey report can be viewed here

 

Photo credit: Lukas Blazek on Unsplash
Published: 12 June, 2025

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