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Gard members and clients find chlorinated hydrocarbons in Singapore bunkers

Affected vessels reporting operational problems that may be caused by contaminated bunkers, mostly HSFO, stemmed in Singapore in Q1 2022.

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Bunker tanker sailing in Singapore port

Maritime Protection and Indemnity (P&I) Club Gard on Wednesday (30 March) issued an alert indicating members and clients reporting operational problems that may be caused by contaminated bunkers, mostly HSFO, stemmed in Singapore in the first quarter of 2022:

We refer to Veritas Petroleum Services’ (VPS) Alert No. 05/2022 dated 11 March 2022 reporting that high levels of chlorinated hydrocarbons have been noted in fuel samples of HSFO deliveries from Singapore. While the deliveries were made by different suppliers during this time, the ISO 8217, Table 2 test requirements were met. The presence of contaminants was found during enhanced testing – GC-MS (Gas Chromatography- Mass Spectrometer), which revealed chlorinated hydrocarbons and organic chlorides. Gard Members can access the VPS Alert here.

VPS advises that the consequences of such contamination include worn out fuel pumps, fuel valve problems and subsequently the main or auxiliary engines failing to start. Gard insured vessels have experienced operational issues that may be related to contaminated stems including blackouts, loss of propulsion, high exhaust temperature deviation and excessive sludging in the fuel system. In some cases, the vessels even required a tow to port. The long terms effect of these contaminants on the machinery, if any, are not yet known.

Subsequent to the VPS alert, Gard also contacted other industry organizations to ascertain if they have had similar experiences. We have not received feedback at the time of drafting this alert although we have been made aware that a number of testing laboratories have published client alerts on this issue that corroborate the VPS findings. We would like to mention that these findings do not reflect the overall quality of bunkers supplied in Singapore.

Given that Gard has experienced a few severe cases of main engine breakdown, we would reiterate some of the recommendations in the VPS alert  as well as Gard’s previous advice on additional testing mentioned in our Insight “Contaminated bunker issue continues to spread” which related to the spate of contaminated bunkers originating in Houston in 2018 and 2019.

Key recommendations

  1. Ship’s crew on vessels that have recently stemmed HSFO bunkers in Singapore should be aware of the possible presence of chlorinated hydrocarbons and the potential effects on the vessel operation. Before using the fuel, owners, operators and charterers may consider seeking assurances from the supplier that the fuel has been tested for chlorinated hydrocarbons and request documentation of the results. At this time, the affected fuel seems to be limited to HFSO, that is, fuel that is intended for consumption by vessels fitted with scrubbers in order to comply with MARPOL sulphur emission standards. This alert does not apply to distillates.
  2. Owners and managers should consider arranging for testing of samples taken before and after the fuel treatment plant to gauge the fuel oil quality at the engine inlet. This will indicate whether the purification system is functioning optimally. It could give early indications of increased engine wear-and-tear and will assist in resolving fuel quality disputes.
  3. On testing requirements for manifold delivery samples, owners and managers can consider ordering investigative analysis, beyond what is required as per Table 2 of ISO 8217, especially when the vessel is experiencing operational issues. Advanced tests such as GC-MS may help to identify contaminants that could cause damage to the main or auxiliary engines.
  4. Owners and charterers should be aware that bunker supply contracts contain various time limits and methods for notification to the bunker provider of problematic fuel. The purchaser should review the bunker sale contract terms and conditions carefully and provide timely notice of operational problems that may be related to the fuel supplied.
  5. Having a constructive dialogue with the bunker suppliers before taking on bunkers to discuss the concerns related to the possible presence of chlorinated hydrocarbons in HSFO can also yield positive results.
  6. Lastly, bunker samples taken at the time of delivery will be relevant evidence that may help to resolve a dispute between owners and charterers regarding the compliance of the fuel supplied as well as between seller and purchaser under the bunker sale contract. For more information please refer to our alertand poster on bunker sampling.

We would like to thank Veritas Petroleum Services for the information. 

 

Photo credit: Manifold Times
Source: Gard
Published: 1 April, 2022

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Biofuel

BHP and GCMD trial multi-feedstock B100 bio bunker fuel on bulk carrier

Bio-blend in the BHP and GCMD pilot is being used on a BHP-chartered bulk carrier “Berge Lyngor”, which was bunkered in Singapore in early May.

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BHP and GCMD trial multi-feedstock B100 bio bunker fuel on bulk carrier

BHP and the Global Centre for Maritime Decarbonisation (GCMD) on Wednesday (3 June) said they have blended biofuels from two distinct feedstocks—used cooking oil and waste animal fats —and introduced the lower-emissions marine fuel into a BHP-chartered bulk carrier as part of a pilot project.

The bio-blend in the BHP and GCMD pilot is being used on a BHP-chartered bulk carrier Berge Lyngor, owned and operated by Berge Bulk, transporting BHP iron ore from Western Australia to China. When run on bio-blend, the vessel has the potential to reduce well-to-wake greenhouse gas emissions by approximately 79 per cent per voyage compared to sailing on very low sulphur fuel oil (VLSFO).

The vessel bunkered in Singapore in early May with a B100 bio-blend comprising 50 percent tallow-derived biodiesel, sourced and supplied by HAMR Energy, and 50 per cent used cooking oil (UCOME) supplied by Mitsui & Co Energy Trading Singapore (METS).

Mitsui also blended the fuel and Dan-Bunkering coordinated and executed the bunkering operation, which was performed by Global Energy’s barge MT Maple.

The BHP and GCMD pilot will assess how biofuels from multiple feedstocks can be blended, handled, and introduced under real-world operating conditions using existing used cooking oil bunkering infrastructure.

At the same time, insights from this pilot will help identify solutions to challenges related to fuel quality, handling, traceability, and onboard vessel performance.

Biofuels for global shipping today rely heavily on used cooking oil – a feedstock whose availability is approaching its projected limits. Biofuel from waste animal fats presents a promising option to expand the supply of lower-emissions marine fuels.

The outcomes of the pilot are expected to shed light on the practical steps to integrate biofuel blends from different feedstocks into existing supply chains. The diversity of biofuels will provide shipowners and operators with greater flexibility to optimise fuel procurement based on cost, availability, and lifecycle emissions performance.

Biofuels derived from different feedstocks can exhibit varying properties that may impact operations, including potential corrosion from oxidation, fuel system clogging caused by wax formation, which this pilot aims to assess.

The pilot will trace and verify the biofuel blend’s integrity aimed at bolstering confidence in emissions reductions reporting. The pilot will also provide insights into how robust tracing can support future marine fuel supply chains where biofuels from multiple feedstocks with varying lifecycle greenhouse gas emissions footprints are blended together.

This project is co-funded by the Maritime and Port Authority of Singapore under the Maritime Innovation and Technology Fund (MINT).

 

Photo credit: Global Centre for Maritime Decarbonisation
Published: 3 June, 2026

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Biofuel

NYK starts one-year B100 bio bunker fuel trial on car carrier

In this trial, NYK will operate a car carrier continuously on B100 for one year to evaluate the impact on engines, fuel supply systems, and operational practices.

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NYK starts one-year B100 bio bunker fuel trial on car carrier

Japanese shipping firm NYK on Tuesday (2 June) said it has commenced a one-year long-term trial involving the continuous use of 100% biofuel (B100) on an NYK-operated car carrier. 

In this trial, NYK will operate a car carrier continuously on B100 for one year to evaluate the impact on engines, fuel supply systems, and operational practices. High-purity biofuels such as B100 are known to be susceptible to degradation from oxygen, light, and heat, raising concerns about the stability of such fuels during long-term use.

In this trial, the biofuel primarily comprises FAME (Fatty Acid Methyl Ester) derived from used cooking oil and similar feedstocks.

The initiative is designed to evaluate the fuel’s effects on the vessel’s equipment and verify operational safety under real-world conditions. 

Through this effort, NYK seeks to accumulate technical expertise that will support the broader use of high-purity biofuels and further accelerate efforts to reduce greenhouse gas (GHG) emissions.

NYK has been advancing the use of biofuels through various initiatives. In 2024, the company conducted a trial using biofuel blend B24 and subsequently expanded practical usage to B30. However, the company said there remains limited global experience with the long-term continuous use of B100.

“By collecting long-term operational data through this trial, NYK aims to accumulate valuable technical insights to support both the safe operation of vessels and the wider adoption of high-purity biofuels,” it said. 

 

Photo credit: NYK
Published: 3 June, 2026

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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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