The U.S. Treasury Department moved Thursday to tighten its grip on American capital flowing into strategic technologies in rival nations, proposing a rule that would restrict U.S. investments in artificial intelligence, supercomputing, hypersonic systems, and biotechnology in China, Russia, North Korea, and other designated "countries of concern." [1]
The proposal marks a significant escalation in Washington's effort to prevent American money from accelerating the military and technological capabilities of geopolitical adversaries — and signals that the government views investment flows as a national security threat on par with direct technology transfers.
From Executive Order to Federal Law
The regulatory push has roots in the Biden administration. In 2023, then-President Joe Biden signed an executive order restricting outbound U.S. investments in sectors including semiconductors, quantum computing, and artificial intelligence directed at China. Treasury subsequently established the Outbound Investment Security Program to administer those restrictions. [1]
Congress then moved to make those measures permanent and broader. In December 2025, lawmakers passed the Comprehensive Outbound Investment National Security Act, which codified and expanded the program to cover additional technologies and additional adversary nations — explicitly adding Cuba, Iran, North Korea, and Russia to the target list. [1] Thursday's proposed rule is Treasury's effort to implement that statute.
What the Rule Would Cover
The proposed restrictions would extend to four core technology domains: hypersonic systems — defined as those capable of traveling at five times the speed of sound — supercomputing, biotechnology, and artificial intelligence. [1] In a notable linguistic choice, Treasury adopted the term "superintelligence," or SI, which is President Trump's preferred framing for advanced AI, rather than the more conventional industry terminology. [4]
The rule would apply only to investments exceeding $50,000 and would carve out many conventional financial instruments, including stock purchases. [1] That threshold and those exclusions are likely to shape the compliance burden for private equity, venture capital, and joint ventures far more than for retail investors or passive fund holders.
Expert Reaction: Signal Sent, But Teeth Still Coming
Analysts and legal experts welcomed the proposal while cautioning that it represents an early step in what will be a lengthy regulatory process.
Craig Singleton, a senior fellow at the Foundation for Defense of Democracies, said the rule "sends an important signal to markets that Washington is tracking where U.S. capital is flowing and what capabilities it is helping build." He added that the screening of outbound investments "recognizes that capital can accelerate military-relevant capabilities just as surely as technology transfer can." [1]
Jason Chipman, a former Justice Department lawyer now specializing in cybersecurity, investment rules, and export controls at WilmerHale, said the new rule "will require more substantial compliance programs to manage risk" — a warning that affected companies should begin preparing now even before a final rule is issued. [4]
Ryan Majerus, a former U.S. trade official now at King & Spalding, offered perhaps the most measured assessment. "It's just the first step in a fairly long process to get to changes which presumably will be more enforcement-minded, to put more teeth behind the outbound investment program," he said. [5] Treasury will accept public comments before any final rule takes effect, meaning the current proposal could be revised substantially.
The Russia Wrinkle
One aspect of the rule is drawing particular attention: the inclusion of Russia as a restricted destination. That designation arrives just days after President Trump waived sanctions on Russia in connection with a diesel deal struck with President Vladimir Putin — a juxtaposition that highlights the sometimes contradictory currents running through the administration's foreign policy. [1]
Whether the Russia provisions survive intact through the public comment period and any subsequent political pressure remains an open question.
A Rivalry That Keeps Escalating
Thursday's proposal fits within a broader, years-long pattern of economic and technological decoupling between Washington and Beijing. The two countries have progressively restricted exports of sensitive goods — China limiting rare earth minerals, the United States curbing access to advanced semiconductors — and have imposed successive rounds of tariffs on each other's products. [1]
The two sides agreed last year to a temporary truce while engaged in broader trade talks, a pause they extended last month through January. [5] But the underlying competition has not paused. In July, Treasury issued a $200,000 fine against a U.S.-based company for failing to disclose a $92,500 investment made by one of its subsidiaries in a Chinese artificial intelligence and robotics firm — a relatively modest penalty that nonetheless demonstrated the government's willingness to use enforcement tools already on the books. [1]
That fine also illustrates the compliance risk now facing American multinationals with complex subsidiary structures: the reporting obligation can apply even when the parent company itself did not make the investment directly.
What to Watch Next
The proposed rule now enters a public comment period, during which industry groups, law firms, and foreign policy advocates are expected to weigh in heavily. The final rule — which could be tighter or more permissive than Thursday's draft — will determine the real-world compliance burden for U.S. investors.
Separately, watch whether the Russia carve-in survives political scrutiny given the administration's concurrent diplomatic overtures to Moscow. And with the Trump-Xi trade truce set to expire in January, any breakdown in those talks could accelerate further restrictions — or, conversely, produce new exemptions as a bargaining chip. The outbound investment landscape is far from settled.
