Concerns about potential delays to Adelaide’s AUKUS submarine program have been addressed during a visit to the Osborne Naval Shipyard, with senior UK defence officials saying the project remains on track.

Major General Mark Totten, director of SSN capability for the UK Defence Nuclear Enterprise, visited Adelaide as work continues on the infrastructure and planning required for Australia’s future nuclear-powered submarine capability.

The Adelaide submarine construction program is a major component of the AUKUS partnership between Australia, the United Kingdom and the United States. The Osborne site is being developed to support the construction of Australia’s future SSN-AUKUS submarines and is expected to become one of the country’s most significant defence manufacturing facilities.

During the visit, Totten rejected concerns that developments in the UK submarine program could create significant delays for Australia. He said the UK program remains on schedule, with design development progressing and steel cutting for the first UK SSN-AUKUS submarine expected next year.

The comments come as questions have been raised about the capacity of the UK defence industry to manage the demands of the AUKUS partnership while also delivering its own submarine requirements.

The Adelaide project is expected to play a major role in South Australia’s economy, supporting thousands of jobs and creating opportunities for businesses involved in engineering, construction, advanced manufacturing and defence technology.

The Osborne Naval Shipyard is being expanded and upgraded as part of the long-term submarine program. The facility will eventually support the construction of Australia’s nuclear-powered submarines, with the first Australian-built SSN-AUKUS submarine expected later in the program.

The project also involves extensive cooperation between Australian and UK defence organisations. Officials say this cooperation is intended to ensure that Australia can develop the skills, infrastructure and industrial capability needed for the long-term submarine program.

Totten said there remains sufficient time between the completion of the UK submarine design and Australia's requirement to implement the design for the Australian build program.

The first Australian-built SSN-AUKUS submarine is part of a broader plan that will significantly expand Australia’s naval capabilities. The program is also expected to strengthen defence-related supply chains and increase cooperation between Australian, British and American industries.

For Adelaide, the submarine program represents a major long-term industrial investment centred on the Osborne precinct. Construction, engineering and defence businesses across South Australia are expected to be involved as the program progresses.

The latest comments provide reassurance that planning for the Adelaide submarine construction program is continuing despite concerns about pressure on the UK defence industry.