Wärtsilä Gas Solutions Cargo Handling and Fuel Gas Supply systems selected for two new midsize liquid ammonia carriers for Navigator Gas and Amon Maritime JV

22 April 2026

Wärtsilä Gas Solutions, part of technology group Wärtsilä, has been contracted to supply the Cargo Handling and Fuel Gas Supply systems for two new 51,350 m3 capacity midsize ammonia fueled liquid ammonia carriers, which will also be capable of carrying liquefied petroleum gas. The ships are being built at the Nantong CIMC Sinopacific Offshore & Engineering Co. Ltd. shipyard in China and will be owned by a joint venture between Navigator Gas (NYSE: NVGS) and Norway based Amon Maritime. The order was booked by Wärtsilä in Q1 2026.

As the shipping industry transitions to decarbonising operations, ammonia is emerging as a carbon free alternative marine fuel. The Wärtsilä systems are designed to operate with ammonia for both the ships’ two-stroke and four-stroke engines, enabling these two vessels to operate with dual-fuel engines capable of running with ammonia.


Wärtsilä Gas Solutions has been contracted to supply Cargo Handling and Fuel Gas Supply systems for two new 51,350 m3 capacity midsize ammonia fueled liquid ammonia carriers © Wärtsilä Gas Solutions

“Wärtsilä Gas Solutions is a market leader in cargo handling and fuel gas supply systems for medium sized gas carrier vessels. This order further strengthens our position and is yet another proof point of executing our strategy focused on shaping the decarbonisation of marine”, commented Hans Jakob Buvarp, Sales Manager, Wärtsilä Gas Solutions. The Wärtsilä equipment is scheduled for delivery to the yard in Q3 2027.

Wärtsilä Gas Solutions in brief
Wärtsilä Gas Solutions, part of Wärtsilä Portfolio Business, is a market leader with innovative systems and lifecycle solutions for the gas value chain. Our main focus areas are the handling of gas in maritime (storage, fuel, transfer and BOG management), gas to power, liquefaction and biogas solutions. We help our customers on their journey towards a sustainable future through a focus on lifecycle performance, innovation and digitalisation.

Wärtsilä in brief
Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy industries. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. Our dedicated and passionate team of 17,900 professionals in 199 locations in 78 countries shape the decarbonisation transformation of our industries across the globe. In 2025, Wärtsilä’s net sales totalled EUR 6.9 billion. Wärtsilä is listed on Nasdaq Helsinki.

Wärtsilä Corporation press release