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Feature: Other ports play catch-up while Singapore takes lead in MFM bunkering

The development further questions if trust and reliability prevails regardless of different MFM systems used when bunkering at other ports.

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MFM Bunkering ManifoldTimes

Singapore’s mass flowmeter (MFM) bunkering project, initiated by the Maritime and Port Authority of Singapore (MPA) and national standards body SPRING Singapore in 2009, which also resulted in the development of the Technical Reference for bunker mass flow metering (TR48:2015), has reached commercial maturity at the republic.

It has started a slew of international ports, bunkering firms and shipping companies independently studying the feasibility of using MFM systems for bunkering – in some cases – implementing their own versions of how MFM bunkering should work.

Though in the right direction, the move could introduce trust and reliability concerns due to inexperienced parties new to MFM bunkering operations entering the market.

“The use of MFM for bunkering is gaining traction at various international ports looking to emulate what Singapore has done and shipowners are putting much more trust in using the technology,” says Darrick Pang, Managing Director of Metcore International Pte. Ltd., in an interview with Manifold Times.

Pang is a member of the Technical Committee and Working Group* that developed TR 48:2015 and led its Task Group on System Integrity. 

He is also the Chairman for the National Mirror Committee** of both OIML R117 (Dynamic measuring systems for liquids other than water) and ISO 21562 (Ships and marine technology – Bunker fuel mass flow meters on receiving vessel – Requirements).

“The success of MFM bunkering is not only the meter itself but a whole framework that incorporates elements such as system set up, zero verification, periodic checks and class certification maintained to TR48 standards,” explains Pang.

“This includes having a robust system which consists of MFM compliance, monitoring and control, the creation of a formalised MFM dispute handling process, and structured training to ensure all parties understand and know how to work within the MFM framework.”

The increasing use of MFMs for bunkering at other ports had Pang questioning the trust and reliability of these non-TR 48:2015 compliant systems – especially when the human element applies.

“MFM systems can be breached by dishonest operators of MFM-equipped bunker tankers,” he shared.

“Security of the MFM system is the hardest challenge. Generally, MFMs can be easily setup and used in other industries but for the ‘creative’ bunkering industry there is still some way to go in maintaining system integrity.

“Singapore has a port regulator which proactively takes steps to enforce fair bunkering practises; what about the other countries?

“For our overseas clients, we work closely with Lloyd’s Register to ensure overall system integrity complies with TR 48:2015.”

Moving on, Pang highlights TR 48:2015 to be only applicable to MFM systems being installed on a bunker tanker.

“MFMs are not plug and play where you can simply install a MFM unit on a shipowner’s receiving vessel and say that the results are as accurate as TR 48:2015 approved bunker tankers, even if it is the same model used in Singapore.”

“Shipowners keen on installing MFM on their vessels for use as a check meter during bunkering operations should instead explore implementing guidelines from ISO (International Organization for Standardization) which oversees the installation of MFMs on receiving ships.

“This ISO standard is still under development and will take a while before it can be used on receiving vessels, due to the challenges which needs to be ironed out.

“However, it should be noted that final and binding figures [unless contractually agreed otherwise] still remains on the bunker tanker.”

Simon Neo, Regional Manager (Asia) at International Bunker Industry Association (IBIA), agrees that it is more challenging to achieve reliable measurements using MFMs installed onboard receiving ships to measure bunkered fuel.

Neo is the Project Leader for ISO 13739 (Petroleum products — Procedures for transfer of bunkers to vessels) and sits in the Technical Committee for Bunkering, MFM Working Committee and Technical Committee for LNG Bunkering.

“The biggest issue with MFM installations on the ship side is the challenge of having enough space for a proper setup to meet recommended flow requirements,” says Neo.

“The MFM is a piece of equipment that offers precise measurement of bunker fuel under the right conditions, but in the interest of good measurement practice during bunkering the MFM is always recommended to be on the bunker tanker side.”

“Basically in all bunker operations be it in Singapore or anywhere in world, unless there is a contractual agreement between the bunker seller and buyer that says something else, final and binding figures for delivered volumes will be from the bunker tanker,” explains Neo.

“Likewise in bunker deliveries via MFM in Singapore, the bunker tanker’s MFM record of delivered quantity (under the TR 48:2015) will be final and binding, even if a receiving vessel may have their own MFM onboard.

“Under TR 48, the meter will need to go through various stages of test and certifications including checks on system integrity and security and approval before they can be certified for use onboard the bunker tanker.

“MFM is not a piece of plug and play equipment as mentioned by Mr. Pang. That is why the whole system needs to be properly secured on the bunker tanker to ensure correct quantity recorded. So, it is not just a matter of installing a MFM on any ship and saying: ‘It’s the same as TR48.’

“MFM is a technology which is accurate but without a complete ecosystem that comprises of system security and integrity, the human factor can come into play.

“That is why a complete system, which encompasses the whole MFM system being installed on the bunker tanker, is crucial.”

Installing the MFM itself on a vessel, whether on a bunker tanker or receiving vessel, does not automatically make it TR 48:2015 compliant.

TR 48:2015 needs to be supported by an entire infrastructure framework ranging from meter selection, system tests, regulatory approval, down to the resolution of disputes and bunker claims procedures; but more importantly it should be supported by strict governance of the port regulator to provide shipowners with peace of mind when receiving bunkers at port. 

References
* Technical Committee for Bunkering 
Scope of the Technical Committee for Bunkering:

  • Review and development of bunkering standards
  • Monitoring of ISO/TC 28 Petroleum products and lubricants
  • Active participation in ISO/TC 28/SC 2 Measurement of petroleum and related products and ISO/TC 28/SC 4 WG 6 Classification and specifications for marine fuels

Working Groups under Technical Committee for Bunkering:

  • Working Group for Mass Flow Metering – Aims to develop a technical reference that specifies the coriolis mass flow meter equipment, the step-by-step procedures and the documentation of the flow meter based bunker delivery process
  • Working Group for SS 524 Quality Management for Bunker Supply Chain
  • Working Group for SS 600 Code of Practice for Bunkering

** National Mirror Committee (NMC) is a committee established to mirror the structure of an international policy/technical committee, with the role of determining national standards.

*** The National Technical Committee (TC) for LNG Bunkering is formed under SPRING Singapore's National Standardisation Programme. The TC for LNG Bunkering, which comprises industry stakeholders and technical experts on LNG bunkering, is the developer of Singapore Technical Reference (TR) 56 for Liquefied Natural Gas (LNG) Bunkering that includes LNG specifications as a marine fuel, LNG bunkering procedures and safety requirements, and crew competency requirements for LNG bunkering.

Photo credit: Manifold Times
Published: 26 February, 2019

 

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Malaysia: Maharani Freeport to implement MFM and e-BDN technologies for enhanced bunkering transparency

Initiatives reflect the Freeport’s commitment to delivering transparency, operational integrity and international best practices across its bunkering ecosystem, says MEG spokesperson.

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Maharani Freeport, a National Project officially launched by His Majesty Sultan Ibrahim, King of Malaysia, in November 2025, will be introducing mass flowmeter (MFM) and electronic bunker delivery note (e-BDN) technologies to its bunkering operations, learns Manifold Times.

These strategic initiatives underscore the port’s commitment in establishing a highly transparent, efficient and trustworthy bunkering environment, aligned with global best practices and addressing critical industry demands, according to a Maharani Energy Gateway (MEG) spokesperson.

MEG is the Master Developer of Maharani Freeport and seeks to position the Freeport as a strategic nexus for shipment, storage and trading operations on a global scale. MEG Synergy is the trading division and a wholly owned entity of MEG; it seeks to position Maharani Freeport as a strategic nexus for shipment, storage, and trading operations on a global scale.

As part of its long-term bunkering strategy, the Freeport is currently in the process of acquiring bunker vessels of various sizes to support marine fuel deliveries and accommodate the evolving requirements of regional and international customers. These vessels will be equipped with MFM technology to ensure accurate, transparent and efficient fuel transfer operations.

Including bunkering and ship-to-ship (STS) trading operations from its High Sulphur Fuel Oil (HSFO) Floating Storage Unit (FSU), MEG Synergy already oversees a healthy volume of Bunker cargo deliveries to regional players each month.

MFM for Trust, Transparency and Traceability

MEG highlighted the custody transfer of bunker fuels at the Freeport will be handled by MFM-equipped bunker tankers.

“The adoption of MFM technology to support bunkering operations is a direct response to persistent industry challenges such as quantity discrepancies and delivery disputes,” explained the spokesperson.

“By equipping our bunker vessels with certified mass flowmeters, we aim to ensure precise and verifiable fuel delivery measurements.

“This initiative is pivotal in fostering trust among customers and strengthening the Freeport’s reputation as a professionally managed zone where businesses can operate with confidence. The overarching goal is to create a secure and well-governed environment for commercial activities, reducing operational risks and uncertainties while supporting efficient and transparent trade.”

e-BDN to Digitalise Documentation Workflow

The implementation of electronic bunker delivery notes (e-BDN), together with MFM technology, further aligns with the Freeport’s focus on creating comprehensive digital custody transfer records and robust data retention systems, added the spokesperson.

This digital approach, integrated with MFM technology, will streamline operational workflows, reduce administrative burdens and provide an immutable record of transactions to enhance transparency, minimising potential friction and expediting dispute resolution

MEG emphasised that the Freeport’s commitment extends beyond technological enhancements to encompass a comprehensive governance framework.

The port aims to adhere to stringent international standards, including those established by the International Maritime Organization (IMO), while offering dispute resolution mechanisms under the International Chamber of Commerce (ICC) to ensure the swift and fair handling of disagreements.

This holistic approach to operational integrity and governance is designed to address perceived transparency gaps, positioning the Freeport as a reliable and commercially attractive hub for the maritime and commodities sectors.

Note: For enquiries in respect of Maharani Freeport, readers may reach out to:

[email protected]

Related: Interview: Maharani Energy Gateway – Forging a new energy nexus in the Straits of Malacca
Related: New Johor bunkering hub: Maharani debuts as Malaysia’s first duty-exempted energy freeport

 

Photo credit: Maharani Energy Gateway
Published: 15 July 2026

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NorthStandard: No switching off when bunker mass flow meters are switched on

While Mass Flow Meters have significantly improved transparency and accuracy in bunker deliveries, experience shows that they are not immune to misuse, says Alvin Forster.

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NorthStandard: No switching off when bunker mass flow meters are switched on

While Mass Flow Meters have significantly improved transparency and accuracy in bunker deliveries, experience shows that they are not immune to misuse, writes Alvin Forster, Senior Loss Prevention Executive – Americas & UK of global marine insurer NorthStandard:

Bunker quantity disputes remain one of the most frequent and contentious causes of claims and charterparty disputes. Traditional measurement methods based on tank soundings, ullage measurements and calibration/sounding tables have long been criticised for susceptibility to error and manipulation. In response, some of the major bunkering ports have mandated the use of Mass Flow Meters (MFMs) as the primary means of measuring the quantity transferred.

MFMs have significantly improved transparency and accuracy, but experience has shown that they are not immune to misuse or deliberate manipulation. Recent enforcement actions, most notably in Singapore, demonstrate that unscrupulous suppliers may attempt to defeat even sophisticated measurement systems.

Singapore pioneered the mandatory use of MFMs. Since 1 January 2017, MFMs have been compulsory for the delivery of marine fuel oil in the Port of Singapore, with the delivered quantity on the Bunker Delivery Note (BDN) derived exclusively from the MFM totaliser.

The regime has continued to evolve. From 1 April 2025, Singapore mandates compliance with SS 648:2024, which tightens requirements around data security, system integrity, piping arrangements, certification, and the use of data loggers and edge devices, reflecting lessons learned from earlier enforcement cases.

Mass appeal for MFMs

From 1 January 2026, MFMs have also been made mandatory on bunker vessels delivering fuel oil, diesel and biofuels at the ports of Rotterdam and Antwerp‑Bruges. The systems must be certified and broadly aligned with ISO 22192, mirroring the Singapore model. The use of MFMs is mandatory across port terminals in Türkiye and at the Port of Ceuta in the Gibraltar Strait, while they are also used in Gibraltar by yacht bunker supplier CEPSA, and others.    

These developments signal a significant shift in the European bunker market, which has traditionally been reliant on shore tank measurements and barge gauging.

Elsewhere, Sohar Port and Freezone have introduced measures that effectively mandate the use of MFMs for bunker supplies. Hong Kong is also looking to introduce regulations that mandate their use, but only for methanol.

Further afield, an increasing number of suppliers are adopting the use of MFMs in ports and hubs where there is no mandate.

Locations where MFMs are currently used on a non-mandatory basis include Fujairah, Zhoushan, Busan, Houston and Prince Rupert (Canada).

Manipulation against the flow

Despite the broadening appeal, and the tamper‑resistant design work that has gone into MFM solutions, there have been instances that show they can still be manipulated through physical or operational interference.

The most well‑known example concerns the bunker tankers Southernpec 6 and Southernpec 7 in Singapore. Between 2016 and 2019, industrial‑strength magnets were placed on the MFM sensors to distort measurement signals, causing the meters to record more fuel than was actually delivered. The fraud resulted in buyers being cheated of over US$300,000 worth of marine fuel oil.

Another recurring manipulation method involves irregular piping arrangements between the MFM and the ship’s manifold. Investigations in Singapore revealed cases where bunker barges had connections allowing fuel to be siphoned back to barge tanks during delivery, inflating MFM readings without the receiving vessel receiving the corresponding quantity.

Such arrangements directly contravene certification requirements but may be difficult for ship crews to detect without detailed inspection.

MFMs have defined operational limits, calibrated for liquid at constant flow. When removing the final amounts from a tank, flow rates may fall outside these parameters, and risk producing unreliable readings.

Guidance for Shipowners and Operators

Despite the increased use of MFMs and the introduction of mandates in some ports, the crew of the receiving vessel should remain vigilant with respect to the way these systems can be manipulated and take measures to protect their position. As a matter of routine, crew should:

  • Always take ship’s bunker tank soundings and witness barge measurements before and after bunkering, even where MFM figures are contractually binding, and retain records.
  • Inspect visible sections of MFM systems, including seals, cabling, and piping.
  • Request to see the MFM bunker system certificate and confirm the unit’s serial number.
  • Engage reputable, experienced bunker surveyors.  
  • Issue letters of protest promptly where discrepancies arise between ship calculations and MFM figures, even if suppliers refuse to countersign.
  • Ensure crews are familiar with bunkering procedures and aware of common manipulation indicators.

Crew should also be aware of the limitations in accuracy when comparing tank measurements with MFM readings. Even when both measurement technologies are accurate, differences can still exist between them.

 

Photo credit: NorthStandard
Published: 3 July, 2026

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MFM-equipped CPN barge first listed under Hong Kong quality bunker scheme

Chimbusco Pan Nation’s bunker barge “Zhong Ran 23” has become the first vessel in Hong Kong listed on Marine Department’s official List of Quality Bunker Vessels, under a newly-launched scheme.

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MFM-equipped CPN barge first listed under Hong Kong quality bunker scheme

Hong Kong-based marine fuel supplier Chimbusco Pan Nation (CPN) on Tuesday (16 June) announced that its bunker barge Zhong Ran 23 has become the first vessel in Hong Kong listed on the Marine Department’s official List of Quality Bunker Vessels.

The list under the Quality Bunker Operator Scheme launched on 3 June.

“The Scheme is a voluntary initiative designed to raise the standard of bunkering accuracy, transparency, and service quality in Hong Kong,” CPN said in a social media post.

“To be listed, a bunker vessel must have its Mass Flow Meter (MFM) system independently certified under ISO 22192, the international benchmark for mass flow metering in bunkering operations.”

CPN added it has operated the MFM system across our fleet of fuel oil barges since 2015. 

Manifold Times previously reported Hong Kong’s Marine Department (MD) launching the Quality Bunker Operator Scheme to encourage bunker operators to install and use mass flow meter systems (MFM systems) on their bunker vessels.

MD said the scheme aims to enhance Hong Kong’s bunkering service quality and the competitiveness of Hong Kong ports, thereby further consolidating Hong Kong’s position as an international maritime centre and a major bunkering port.

Under the Scheme, bunker operators of traditional maritime fuel and biodiesel that install and use MFM systems on their bunker vessels, with the MFM systems inspected and certified by an accredited body in accordance with the International Organization for Standardization’s ISO 22192 Standard or equivalent requirements, can apply to the MD for inclusion in the scheme’s “List of Quality Bunker Vessels”, provided they meet the relevant technical and operational requirements. 

Related: Hong Kong backs MFM adoption with voluntary scheme to boost bunkering competitiveness

 

Photo credit: Chimbusco Pan Nation
Published: 17 June, 2026

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