Foreign-ownership limits in strategic sectors

Foreign-ownership limits in strategic sectors are statutory caps or prohibitions on foreign ownership or control of firms in designated industries. A fixed ceiling applies by rule, while a screening regime tests particular transactions against security criteria. The two can coexist, but they are not interchangeable: a ceiling excludes ownership above a stated threshold, while screening may prohibit, condition or allow a transaction after review.

Mechanism

The limit operates as a standing structural defence. A ceiling on voting equity can be supplemented by control tests to catch arrangements that reproduce influence without formal ownership. In US communications law, Section 310(b)(3) sets a 20 per cent direct foreign-ownership ceiling for a corporate broadcast licensee, while Section 310(b)(4) uses a 25 per cent indirect benchmark and allows the Federal Communications Commission to determine whether greater ownership serves the public interest. The FCC's 2026 proposal concerns how that statutory framework should be administered; it does not erase the distinction between a cap and discretionary review. The blunt rule trades precision for predictability. Its complement is the golden share, which secures a state veto in a particular firm rather than imposing a sector-wide ceiling.

Employment as economic-warfare instrument

Generic caps become economic-warfare instruments when they are narrowed from "foreign" to a named adversary, or when an existing holding is ordered to divest for a declared strategic purpose. Retrospective application is more escalatory than an entry rule because it disturbs an acquired position. Forced divestment nevertheless remains distinct from the seizure practice treated at Counter-sanctions asset seizure: divestment orders a sale or disposal, while seizure transfers or extinguishes property rights under a different authority.

The current regimes remain jurisdiction-specific. Australia's Treasurer can prohibit, condition or unwind covered investments under the Foreign Acquisitions and Takeovers Act. US CFIUS reviews control and specified non-controlling transactions rather than applying a general economy-wide cap. Regulation (EU) 2026/1386 entered into force in July 2026, applies selected preparatory provisions from 16 July 2026 and the main framework from 17 January 2028, when Regulation (EU) 2019/452 is repealed subject to transition. It establishes screening and cooperation, not a single Union ownership percentage. None of those legal powers, by itself, proves a security effect in a particular case.

Effects and limits

When enforced, a cap directly prevents formal ownership above its threshold; its weakness is everything short of that threshold. Influence can travel through debt, procurement dependence, licensing, data access and minority stakes, which is why jurisdictions layer caps with screening, Critical-infrastructure ownership review and mitigation conditions. A cap can also deter capital across a covered sector whether or not a particular investor presents a security risk. Nominees, indirect holdings and contractual control then return discretion to the administrator through attribution and control tests. Share-register rules make the threshold easier to observe than an open-ended security standard, but supervision and enforcement remain necessary. Adoption of either a cap or a screening power does not, by itself, prove that a particular investment would have caused harm or that intervention produced a measurable security benefit.

See also

Golden shares and special state control rights · Critical-infrastructure ownership review · Committee on Foreign Investment in the United States (CFIUS) · Strategic corporate acquisition · Economic statecraft

Sources

• Australian Foreign Acquisitions and Takeovers Act 1975, current compilation, accessed 30 July 2026.
• US Treasury, CFIUS laws and guidance, accessed 30 July 2026.
• Regulation (EU) 2026/1386 on foreign-investment screening, accessed 30 July 2026.
• FCC, 2026 proposal on section 310 foreign-ownership rules, accessed 30 July 2026.