Babcock and Truflo Marine have announced a UK pilot initiative aimed at integrating Australian manufacturing into allied submarine sustainment supply chains in support of AUKUS, the UK Defence Journal understands.
Announced at the Combined Naval Event 2026, the initiative will see selected low-complexity submarine valve components manufactured at Truflo Marine’s Century Engineering facility in Adelaide, with UK engineering oversight, quality assurance and validation activity taking place over the next 18 months. The components are intended for subsequent integration into sustainment of the UK’s Astute-class submarine fleet.
Babcock described the pilot as a demonstration of how qualified Australian suppliers can be integrated into a globally connected submarine sustainment ecosystem, with the longer-term aim of enabling Australian-manufactured components to be qualified for entry into future Royal Navy sustainment supply chains.
David Tytherleigh, Babcock Director of Growth and Strategic Procurement, Nuclear, said the initiative supports “the development of a resilient and globally connected submarine sustainment ecosystem capable of supporting both current operational demands and future allied capability requirements.”
Mike Semens-Flanagan, Managing Director of Truflo Marine, said the collaboration demonstrates how the company’s flow control expertise, combined with its expanding Australian manufacturing capability, “can support a more responsive and resilient submarine sustainment supply chain,” adding that the work is “helping to develop in-region capability that can support vessels operating from Australia today, while contributing to the long-term industrial strength of the AUKUS enterprise.”
Century Engineering was recently the first Australian business to secure U.S. export contracts through the Australian Submarine Supplier Qualification programme led by H&B Defence. The Babcock pilot broadens that role to include active UK sustainment work.
According to Babcock, the collaboration supports three strategic objectives across the AUKUS enterprise: expanding allied supply chain capacity, developing in-region industrial capability, and strengthening a resilient submarine industrial base across the UK, Australia and the United States.
