Technology group Wärtsilä has signed a five-year service agreement with Greece-based operator TMS Cardiff Gas to support the operation of two newbuild liquefied natural gas carrier (LNGC) vessels. The agreement is designed to maximise vessel availability and operational reliability through optimised maintenance planning, expert support and predictive maintenance services. The order was booked by Wärtsilä in Q3 2026.
As LNG trade continues to grow, vessel operators face increasing pressure to maintain high levels of reliability, efficiency and schedule adherence. Effective lifecycle support plays an important role in helping ship operators minimise unplanned downtime, optimise maintenance activities and secure the long-term performance of critical onboard assets. The latest agreement builds on a successful relationship between Wärtsilä and TMS Cardiff Gas, following the renewal in 2025 of an existing agreement covering seven vessels in the company’s fleet.
“There is increasing global demand for LNG, and carrier operators place a high value on reliability. This is why this agreement with Wärtsilä is important to us. The existing agreement covering other vessels in our fleet has delivered a successful combination of technology, high-quality spare parts support and expert services, helping us maintain reliable and efficient operations. Extending this collaboration to these two newbuild vessels supports our goal of maximising availability and operational performance across the fleet,” says Alexandros Politis-Kalenteris, Deputy COO - TMS Cardiff Gas.
The agreement covers the recently delivered 174,000 cbm LNGCs Al Thurayya and Al Majhoulah. Through Wärtsilä’s Dynamic Maintenance Planning service, the vessels will benefit from flexible maintenance scheduling, extended maintenance intervals and reduced spare parts consumption. The agreement also includes 24/7 remote operational support, contract management services and Expert Insight, Wärtsilä’s predictive maintenance solution that uses real-time operational data to identify potential issues before problems arise. Each vessel is equipped with two WinGD 5X72DF two-stroke main engines, four Wärtsilä 34DF auxiliary engines, and Wärtsilä gas valve units.
“As vessel operations become increasingly complex, operators are looking for greater predictability, efficiency and support throughout the asset lifecycle,” says Henrik Wilhelms, Director, Agreement Sales, Wärtsilä Marine. “By combining advanced digital capabilities, predictive maintenance and expert lifecycle services, we help our customers maximise asset performance, reduce operational risk and maintain competitiveness in a rapidly evolving operating environment.”
The two vessels have recently entered service as part of a broader fleet expansion programme underway at TMS Cardiff Gas. The company is part of TMS, which manages more than 140 vessels across the LNG, LPG, oil tanker, dry bulk and container shipping segments. In addition to the service agreement and equipment onboard, TMS Cardiff Gas also utilises Wärtsilä Fleet Optimisation Solution (FOS) across its wider fleet. FOS integrates voyage planning, performance analytics, compliance management and real-time operational insight within a single digital platform, helping to support the safe and efficient operation of the company's vessels.
Media contact for more information on this release:
Isabella Alder
External Communications, Wärtsilä Marine
[email protected]
Image caption: Wärtsilä has signed a five-year service agreement with Greece-based operator TMS Cardiff Gas to support the operation of two newbuild liquefied natural gas carrier (LNGC) vessels. © TMS Cardiff Gas
All Wärtsilä releases are available at www.wartsila.com/media/news-releases and at news.cision.com/wartsila-corporation where also the images can be downloaded. Use of the image(s) is allowed only in connection with the contents of this press release. Wärtsilä images are available at www.wartsila.com/media/image-bank.
Wärtsilä Marine in brief
Wärtsilä Marine is a global pioneer in power, propulsion and lifecycle solutions for the marine market. We develop industry-leading technologies, advancing maritime's transition to new fuels. We support building an end-to-end digital ecosystem where all vessels and ports are connected. Ultimately, Wärtsilä Marine is driving the shipping industry forward on its journey towards a decarbonised and sustainable future through our broad portfolio of engines, propulsion systems, hybrid technology, exhaust treatment, shaft line solutions and digital technologies, as well as integrated powertrain systems. Our offering, which is underpinned by our performance-based agreements, upgrades, lifecycle solutions, decarbonisation services, as well as an unrivalled global network of maritime expertise, delivers the efficiency, reliability, safety, and environmental performance needed to support a safe and sustainable future for our customers, our communities and our planet.
www.wartsila.com/marine
Wärtsilä in brief
Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. 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 6.2 billion. Wärtsilä is listed on Nasdaq Helsinki.
www.wartsila.com