Classification society DNV awarded AiP (approval in Principle) the Marine Design and Research Institute of China (MARIC) an Approval in Principle (AiP) for their new ammonia-ready Kamsarmax bulk carrier. This significant milestone was announced during Singapore Maritime Week 2025, highlighting the industry’s shift toward sustainable shipping solutions.
DNV awarded AIP
DNV awarded AiP to MARIC for a new ammonia-ready Kamsarmax bulk carrier design.
The vessel features a length of 229 meters and a beam of 38 meters, optimized for cargo volume.
It is designed to be retrofitted with ammonia tanks and systems, supporting the transition to green fuels.
The ship can travel over 15,000 nautical miles on ammonia, emphasizing its potential for long-haul shipping.
Overview of the New Vessel Design
The new Kamsarmax bulk carrier is designed with a shallow draft, allowing for flexible port calls. It is also equipped to utilize a Wind Assisted Propulsion System (WAPS), which enhances its fuel efficiency and reduces emissions.
The vessel’s specifications include:
Length: 229 meters
Beam: 38 meters
Cargo Capacity: Optimized for increased volume at the same draft
Tank Capacity: 4,500 cubic meters for ammonia fuel
Range: Capable of covering over 15,000 nautical miles at design speed
The Importance of Ammonia as a Marine Fuel
Green ammonia is gaining traction as a viable alternative fuel for the maritime industry, particularly as global shipping seeks to meet stringent greenhouse gas reduction targets. When produced from renewable energy sources, ammonia can significantly lower the carbon footprint of shipping operations.
In 2024, the first orders for ammonia-fueled vessels were placed, primarily in the bulk carrier segment, indicating a growing acceptance of ammonia as a mainstream marine fuel.
Collaboration for a Sustainable Future
Mr. Zhu Jianzhang, Vice President of MARIC, expressed pride in collaborating with DNV, which underscores their commitment to advancing green shipping technologies. He emphasized the importance of overcoming technical and operational challenges associated with ammonia as a marine fuel.
Øyvind Pettersen, Head of Technical Centre China at DNV Maritime, noted that this AiP represents a significant step forward in the adoption of ammonia as a marine fuel. He highlighted the need for innovation and a strong focus on safety to realize the full potential of ammonia in shipping.
Regulatory Framework and Future Developments
DNV has been proactive in establishing a regulatory framework for ammonia-fueled ships, with the first edition of its classification rules published in 2021. Updates in subsequent years have included the introduction of the Gas Fuelled Ammonia class notation, which outlines requirements for fuel systems and bunkering connections.
A recent DNV white paper titled “Safe Introduction of Alternative Fuels – Focus on Ammonia and Hydrogen as Ship Fuels” provides valuable insights for shipowners navigating the evolving regulatory landscape.
Approval in Principle to Maric
The awarding of the AiP to MARIC for their ammonia-ready Kamsarmax bulk carrier marks a pivotal moment in the maritime industry’s transition toward sustainable fuels. As the sector continues to innovate and adapt, ammonia is poised to play a crucial role in achieving a low-carbon future for shipping.
