Marine bunker trading, brokerage & supply coordination · Port of Singapore
Bio-residual & bio-distillate
B24, B30 and other FAME blends with VLSFO or MGO, sourced from licensed suppliers with biofuel capability and specified under ISO 8217:2024 where required.
Marine biofuel blends are conventional marine fuels mixed with a bio-component, most commonly FAME (fatty acid methyl ester) made from waste feedstocks such as used cooking oil. A B24 blend contains about 24% FAME by volume, typically with VLSFO; B30 contains about 30%. They are “drop-in” fuels that most vessels can use without engine modification.
Singapore has become one of the main biofuel bunkering hubs. The MPA reported around 880,000 tonnes of bio-blends sold in 2024, and from 7 March 2025 raised the permitted biofuel blend carriage limit on conventional bunker tankers from 25% to 30%, which made B30 deliveries far easier to schedule. Higher blends need tankers approved to carry them.
Not every licensed supplier offers biofuel, and not every blend ratio is available on every date. A biofuel enquiry is therefore always a sourcing enquiry first: we confirm which suppliers can deliver the blend, the base fuel, the FAME feedstock and the sustainability documentation before anything is offered.
Market and regulatory figures from MPA publications and industry reporting, checked October 2026.
Specifications
ISO 8217:2024 is the first edition of the marine fuel standard to bring FAME blends into scope, with bio-residual grades for blends with residual fuel and bio-distillate grades for blends with distillate, up to 100% FAME. Where a fuel is 100% FAME, the FAME should also meet EN 14214 or ASTM D6751. Under ISO 8217:2017, distillate fuels were limited to a small FAME content, so a blend bought “to ISO 8217:2017” needs the FAME exception agreed in writing.
Vessel applications
Owners and operators using bio-blends towards FuelEU Maritime, EU ETS or IMO carbon intensity obligations.
Cargo owners and liner customers asking for lower-carbon transport on specific services.
Vessels testing blends before wider adoption, with documented results.
Operational considerations
FAME is less oxidation-stable than fossil fuel and its properties can change during long storage. Plan to consume biofuel blends within a reasonable period and avoid leaving them in tanks for extended times.
FAME attracts water, which can support microbial growth. Keep tanks clean, drain water regularly and monitor filters.
FAME can raise cloud and pour points. Check cold flow properties against the vessel’s heating capability and route.
Confirm the engine maker’s position on FAME content, check compatibility with fuel already on board, and record the use of biofuel in line with flag State guidance.
Procurement & delivery
Blends are delivered by licensed bunker tankers within the MPA carriage limits, with metered quantity and an e-BDN. We confirm the supplier’s blending point, the tanker and the documents before you confirm.
Testing should cover FAME content, oxidation stability, acid number and water in addition to standard parameters. We can arrange independent laboratory testing against the relevant ISO 8217:2024 grade.
Use the bunker quotation form, select the biofuel blend option and give the blend ratio, base fuel and certification needed in special instructions. See also ISO 8217 explained.
B24 is a blend of about 24% FAME biofuel with 76% conventional marine fuel, usually VLSFO. It is one of the most common biofuel blends supplied in Singapore, alongside B30.
Most vessels can burn FAME blends without modification, but you should confirm the engine maker’s approval, check compatibility with fuel on board and plan for FAME’s storage characteristics.
No. Biofuel is offered by a subset of licensed suppliers, and blend ratios depend on product availability and barge scheduling. Every enquiry is confirmed case by case.
The bunker delivery note shows the blend, and the supplier provides sustainability documentation such as an ISCC Proof of Sustainability where agreed. Agree the document set before confirmation.
Tell us the blend, base fuel, quantity and certification needed. We will confirm which licensed suppliers can deliver it.