The Australian Department of Defence is investigating how parts for F-35 fighter jets intended for the United States were diverted to Hong Kong, acting Prime Minister Richard Marles confirmed on Tuesday. The components, originally being shipped by an unidentified third party on behalf of Lockheed Martin, remain unaccounted for months after their unexpected detour to the Chinese-administered territory.
Marles emphasized that a full review of Australia's role in the incident is underway but downplayed concerns about the nature of the parts involved. He stated that the components were not considered “sensitive,” despite initial reports suggesting they included stealth technology. “We are confident about the way in which we’ve engaged with the program, and through the US’s prime contractor, Lockheed Martin,” Marles said. He added that the issue would be managed primarily by the United States and Lockheed Martin.
Contrasting with the official Australian stance, a report in Politico cited sources who identified the shipment as containing one of the F-35’s canopies, a part reportedly embedded with stealth technology. The US Department of Defense and the F-35 Joint Program Office confirmed their awareness of the shipment issue, stating they are working closely with US authorities and industry partners to recover the components, investigate the incident, and implement measures to prevent future occurrences.
Security experts have expressed concern over the shipment’s diversion to Hong Kong. Michael Shoebridge, director of Strategic Analysis Australia and former intelligence official, warned that such parts could provide adversaries like China with the means to reverse-engineer F-35 technology or develop methods to counter its capabilities. Shoebridge described the unplanned stopover in Hong Kong as “an incredibly stupid” error amounting to a significant intelligence risk, suggesting the situation had been exploited rather than facilitated by deliberate action.
Australia has been a key early partner in the F-35 program, contributing to its development, supply, and sustainment through numerous contracts. More than 70 Australian companies participate in the program, with over 700 critical parts manufactured in Victoria alone. Australia also hosts a regional distribution hub for F-35 components in New South Wales. The combined value of contracts awarded to Australian firms related to the program exceeds A$5.2 billion as of September 2025.
Shoebridge cautioned that the incident's implications extend beyond the bilateral relationship between the United States and Australia, potentially affecting all nations operating the F-35 fleet. “They’re all now carrying the risk of whatever vulnerabilities this has brought to the aircraft,” he said, underscoring the global significance of the breach.
The shipment controversy comes amid broader discussions about the security of F-35 technology. Last week, the US State Department affirmed the Trump administration’s decision to proceed with the sale of 48 F-35 jets to Saudi Arabia, despite intelligence concerns that China could gain access to some stealth features through such transfers. The lost shipment underscores ongoing challenges in safeguarding one of the most advanced and widely distributed fighter jet platforms in the world.