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ABS awards US first AiP for ammonia bunkering vessel design

ABS, Fleet Management, Sumitomo Corporation and TOTE Services announced the United States’ first AiP for the initial design of ammonia bunkering articulated tug-barge.

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ABS awards US first AiP for ammonia bunkering vessel design

American Bureau of Shipping (ABS), Fleet Management Limited, Sumitomo Corporation and TOTE Services on Thursday (19 September) announced the United States’ first Approval in Principle (AiP) for the initial design of ammonia bunkering articulated tug-barge (AB-ATB) from ABS. 

AT-ATB is a vessel that consists of a tug and a barge that are joined together to form a single unit, and is intended for providing ammonia to a vessel as a fuel.

The AB-ATB was designed to be compatible with vehicle carriers including Aurora Class PCTC recently delivered to Höegh Autoliners, the Norwegian shipping company, for bunkering operation at the ports of Jacksonville, Florida, and Brunswick, Georgia as well as a 15000 TEU ammonia-fuelled container vessel whose concept design was created by MMMCZCS, for bunkering operation at the port of Savannah, Georgia.

The award ceremony was held in Houston at Gastech 2024, the world’s largest energy conference. 

The approval was achieved in cooperation with the RADIUS consortium, consisting of ABS, A.P. Moller – Maersk A/S, Fleet Management Limited, Georgia Ports Authority, Maersk Mc-Kinney Moller Center for Zero Carbon Shipping (MMMCZCS), Sumitomo Corporation, and TOTE Services. 

The barge design and engineering were completed by VARD Marine US, Inc. (VARD). 

The parties said the design approval is an important step on the maritime industry’s decarbonisation journey where ammonia-fuelled vessels are seen as one of multiple fuel pathways.

The Consortium, established in March 2023, has been conducting a feasibility study on ship-to-ship bunkering of reduced emission ammonia along the U.S. East Coast. This includes the development of a cost-effective supply chain for the procurement, transportation, and storage of reduced emission ammonia fuel, as well as the design of AB-ATB and related supply chain infrastructure.

The parties expect this design approval to motivate and encourage the maritime industry to develop and order such types of ammonia-fuelled vessel. This approval is a significant milestone in accelerating the potential of the first US ammonia bunkering vessel, targeting commercial operations by 2030.

Panos Koutsourakis, ABS Vice President, Global Sustainability, as a representative of the consortium, said: “This is an exciting milestone for our feasibility study and project teammates. Having an approved basic design for the AB-ATB is another step toward maturity for ammonia as a marine fuel.”

“ABS is committed to supporting the maritime industry as it pursues low-carbon, more sustainable operations. We have extensive insight into the development and application of ammonia as a marine fuel, and we are proud to share our learnings with this team.”

 

Photo credit: Sumitomo Corporation
Published: 20 September, 2024 

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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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Alternative Fuels

DNV on IMO MSC 111: Interim guidelines for using hydrogen, ammonia as marine fuels approved

Highlights of IMO’s MSC 111 include approved interim guidelines for ships using hydrogen and ammonia cargo as fuels as well as endorsed work plans to address regulatory safety barriers to alternative fuels.

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Classification society DNV on Saturday (2 May) released technical and regulatory news on the highlights of IMO’s MSC 111 including approved interim guidelines for ships using hydrogen and ammonia cargo as marine fuels as well as endorsed work plans to address regulatory safety barriers to alternative fuels and new technologies.

The following are excerpts of the article: 

The 111th session of the Maritime Safety Committee (MSC 111) was held from 13 to 22 May 2026. The adoption of a new goal-based Code for Maritime Autonomous Surface Ships (MASS) marks a key milestone in the IMO’s work to ensure that the regulatory framework keeps pace with the rapid development of shipping technologies. MSC 111 also approved revised Explanatory Notes for the Safe Return to Port concept for passenger ships, as well as draft amendments to the IGC Code for gas carriers to incorporate a decade of Unified Interpretations, turning operational experience into clearer and more consistent requirements.   

Training for seafarers on alternative fuels and new technologies

MSC 111 approved new “Interim guidelines on training for seafarers on ships using methyl/ethyl alcohol as fuel”, as well as new “Interim guidelines on training for seafarers on ships using amm onia as fuel”.

The fuel-specific guidelines support the generic “Interim guidelines on training for seafarers on ships using alternative fuels and new technologies to support the reduction of GHG emissions from international shipping” (STCW. 7/Circ.25),which were approved by MSC 110 in 2025.

MSC 111 further endorsed the work plan for the further development of training provisions for seafarers on ships using alternative fuels and new technologies.

Ships using hydrogen as fuel 

MSC 111 approved “Interim using hydrogen as fuel” guidelines for the safety of ships

Ships using ammonia cargo as fuel

MSC 111 approved “Interim guidelines for use of ammonia cargo as fuel on gas carriers”. These guidelines aim to support the safe handling of ammonia as fuel, with main focus on areas outside the cargo areas to ensure safety for the crew and ship.

IGC Code – ships carrying gases or low flashpoint fuels 

MSC 111 approved draft amendments to the IGC Code to incorporate the large number of Unified Interpretations (UIs) developed since the latest major review of the code, which entered into force in 2016. The primary objective of the draft amendments is to remove ambiguity and promote the consistent implementation of the IGC Code requirements.

The draft amendments to the IGC Code are expected to enter into force on 1 July 2028, subject to adoption by MSC 112 (December 2026).

The draft amendments to the IGC Code will apply to ships constructed on or after 1 July 2028, i.e. ships:

for which the building contract is placed on or after 1 July 2028; or in the absence of a building contract, the keels of which are laid or which are at a similar stage of construction on or after 1 January 2029; or the delivery of which is on or after 1 July 2032.

Draft amendments to the model form of the International Certificate of Fitness for the Carriage of Liquefied Gases in Bulk in Appendix 2 of the IGC Code were approved to reflect the three-date application provision.

The following MSC Circulars, containing UIs to the IGC Code, are expected to be suspended upon adoption and entry into force of the IGC Code amendments:

  • MSC.1/Circ.1543, MSC.1/Circ.1559, MSC.1/Circ.1590,
  • MSC.1/Circ.1606, MSC.1/Circ.1617, MSC.1/Circ.1625,
  • MSC.1/Circ.1651, MSC.1/Circ.1669 and MSC.1/Circ.1679.

Note: The full article can be found here

 

Photo credit: Venti Views on Unsplash
Published: 26 May, 2026

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Ammonia

Singapore authorises ITOCHU subsidiary to conduct ammonia bunkering trials

ITOCHU plans to conduct demonstration trials in collaboration with MOL, supplying ammonia fuel to dual-fuel Capesize bulkers within the port of Singapore during the last quarter of 2027.

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ITOCHU orders world’s first ammonia bunkering vessel for Singapore demonstration project

ITOCHU Corporation (ITOCHU) on Wednesday (20 May) announced that the Maritime and Port Authority of Singapore (MPA) has granted authorisation to ZETA Bunkering Pte Ltd (ZETA), a wholly owned subsidiary of ITOCHU, to conduct ammonia bunkering trials in Singapore.

The authorisation was granted following MPA’s review of ZETA’s submissions, which included comprehensive safety studies, risk assessments, and business plans for ammonia bunkering in Singapore. 

The ammonia bunkering trials to be conducted under this authorisation will serve to verify the technical readiness, operational protocols, infrastructure, and technologies, to assess and inform the development of safe and environmentally sustainable ammonia bunkering practices in Singapore. The authorisation was issued on 27 April and will become effective on 15 May for a trial period up to two years subject to MPA’s prevailing regulatory framework.

In June 2025, as part of ITOCHU’s integrated project for developing and owning of ammonia-fuelled vessels and the establishment of a global supply chain for ammonia as marine fuel, ITOCHU placed an order for the world’s first newbuilding ammonia bunker vessel, through Clean Ammonia Bunkering Shipping Pte Ltd, a wholly owned subsidiary of ITOCHU. The vessel is being constructed by Sasaki Shipbuilding, will be flagged under the Singapore Registry of Shipping and is expected to be delivered in September 2027.

The authorisation will accelerate ITOCHU’s initiatives to decarbonise international shipping. Specifically, ITOCHU plans to conduct demonstration trials in collaboration with Mitsui O.S.K. Lines, Ltd. (MOL), supplying ammonia fuel from the ammonia bunker vessel to dual-fuel Capesize bulkers, jointly owned by CMB.TECH NV (Belgium) and MOL, and chartered by MOL, within the port of Singapore during the last quarter of 2027, subject to the relevant regulatory approvals.

Through these demonstrations and subsequent ammonia bunkering trial operations under the authorisation, ITOCHU will work closely with MPA and other maritime stakeholders to develop infrastructure, technologies, and operational standards for ammonia bunkering that prioritise safety and environmental sustainability. ITOCHU will also formulate detailed implementation plans, conduct risk assessments, and establish emergency response measures, ensuring that safety and environmental protection remain paramount.

These trials will enable ITOCHU to establish safe and sustainable ship-to-ship bunkering operations using ammonia as marine fuel, with the aim of commercialising the ammonia bunkering business in Singapore and at major maritime hubs worldwide.

Related: ITOCHU orders world’s first ammonia bunkering vessel for Singapore demonstration project

 

Photo credit: ITOCHU Corporation
Published: 22 May, 2026

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