Expansion of Ammonia Fuel Supply Facilities for Marine Engines

MITSUI E&S Co., Ltd. (Headquarters: Chuo-ku, Tokyo; President and CEO: Takeyuki Takahashi; hereinafter, “MITSUI E&S”) has decided to expand its ammonia fuel supply system facilities for land-based testing in preparation for the projected growth in demand for marine engines fuelled by ammonia.

In the maritime sector, reducing greenhouse gas (GHG) emissions from vessels has become a critical challenge. MITSUI E&S currently boasts the largest domestic [to Japan] production volume of large marine dual-fuel engines utilising low-CO₂ fuels such as LNG, LPG, and methanol: all of which are compatible with future net-zero emission fuels. Through the investment in this facility, MITSUI E&S aims to further develop/increase its production capabilities for ammonia-fuelled engines, which are expected to become a key zero-emission fuel in the future.

This facility will incorporate technologies from TGE Marine Gas Engineering GmbH (hereinafter, “TGE Marine”), a wholly owned subsidiary of MITSUI E&S. TGE Marine has over 150 Fuel Gas Systems delivered or on order for LNG, LPG, Ethan and Ammonia.

To date, MITSUI E&S has been advancing the development of ammonia fuel supply systems and ammonia fuel tanks under the NEDO Green Innovation Fund. By the end of the fiscal year 2025, MITSUI E&S has conducted integrated operation testing of ammonia-fuelled engines and fuel supply systems at its Tamano Works location, verifying their reliability and safety.

Going forward, MITSUI E&S will conduct further integrated testing and validation of engines and fuel supply systems through land-based trials. This will contribute to the enhanced reliability, safety, and a wider adoption of ammonia propulsion systems in marine applications.

In addition, through collaboration with TGE Marine, MITSUI E&S will provide integrated marine propulsion systems combining engines and fuel supply systems, enabling it to meet diverse customer needs both in Japan and globally.

MITSUI E&S aims to evolve from a conventional standalone engine business into a comprehensive marine propulsion system supplier as well as expanding its range of services and solutions to grow its market presence while enhancing its corporate value and contributing to the realisation of a sustainable future.
This capital investment is supported by the “Zero-Emission Ships Construction Promotion Project,” a joint initiative by the Ministry of the Environment and the Ministry of Land, Infrastructure, Transport and Tourism of Japan.

Contact details for this Press Release

For inquiries regarding products and technologies 

Planning & Administration Department, Marine Propulsion Systems Division
Tel.: +81-3-3544-3077

For media inquiries

Public Relations Section, Corporate Planning Department 
Tel.: +81-3-3544-3147