Critical-infrastructure ownership review

Critical-infrastructure ownership review is the screening, and retrospective re-examination, of foreign ownership and control of critical infrastructure such as ports, energy grids, telecommunications networks, and water systems. It is investment security applied to the assets a society cannot function without: the concern is not technology leakage but operational control, the possibility that an adversary owns the switch.

Mechanism

Infrastructure differs from ordinary acquisitions in three ways that shape the instrument. Control can expose operational data and influence maintenance or access. Assets are immobile and long-lived, so ownership decisions can outlast the assumptions made at signing. Risk is often prospective rather than evidence of present misconduct. Screening can therefore include notification, mitigation, call-in, retrospective review and, under specific authority, divestment. Registration and operational obligations under Australia's Security of Critical Infrastructure Act remain distinct from the Treasurer's foreign-investment decision and from advice supplied through FIRB.

Employment history

Australian controls now combine investment review with the critical-infrastructure security regime. The Act was reviewed in compilation C09 dated 4 June 2026. Regulation (EU) 2026/1386 entered into force on 16 July 2026 but applies generally from 17 January 2028. Regulation (EU) 2019/452 continues under the transition rules for foreign direct investments undergoing screening on 17 January 2028 and investments completed by that date. The new framework coordinates screening but leaves member-state authorities responsible for national decisions. In the United States, CFIUS reviews covered transactions and can recommend action, while the President retains specified prohibition or divestment authority. Investor, asset operator, screening body, sector regulator and final decision-maker must be named separately.

Effects and contestation

Review demonstrably prevents new adversary control and, through retrospective powers, converts past openness into recoverable ground, but the costs are structural. Retrospection undermines the contractual certainty that attracts infrastructure capital at all; adversary states read each unwound deal as expropriation and reciprocate against the reviewer's investors; and the port-and-grid focus is contested on threat-model grounds, sceptics arguing that documented harm from Chinese port ownership remains thin and that the instrument prices worst-case war scenarios into peacetime commerce. Proponents answer that infrastructure is precisely where waiting for documented harm means discovering it during mobilisation.

Review begins with jurisdiction. Authorities must establish that the investor, transaction and asset fall within the relevant law. They then assess national-security risk, including access to sensitive information, supply continuity, operational influence and connections to foreign governments. A concern can be addressed through approval conditions, mitigation or prohibition. These outcomes are not equivalent.

Retrospective review requires particular care. A call-in power may permit examination of a completed acquisition, but it does not make every historic transaction void. An unwind or divestment needs an authorised decision and defined process. Sector security duties can apply to an operator regardless of nationality, while investment screening focuses on ownership or control.

The instrument is defensive when it reduces prospective vulnerability. It can still impose costs on capital formation and trigger reciprocal treatment. Evidence of foreign ownership or long lease duration is not evidence that the investor has disrupted service or acted under state direction.

See also

Strategic corporate acquisition · Foreign Investment Review Board (Australia) · Committee on Foreign Investment in the United States (CFIUS) · Security of Critical Infrastructure Act (Australia, 2018) · Economic statecraft

Sources

• Australian Federal Register, Security of Critical Infrastructure Act 2018, accessed 30 July 2026.
• Australian Treasury, reforms to strengthen foreign-investment review, accessed 30 July 2026.
• US Treasury, CFIUS laws and guidance, accessed 30 July 2026.
• Regulation (EU) 2026/1386 on screening foreign investment, accessed 30 July 2026.