Treasury proposes rule to curb high-tech investments in China and other adversaries

The Treasury Department’s proposed rule would regulate some U.S. investments flowing into high-tech industries in China, Russia, North Korea, and other countries of concern. It is part of a broader effort to keep American money from supporting technologies with possible military uses. The rule would implement and expand a 2025 law called the Comprehensive Outbound Investment National Security Act.

The proposal covers areas including hypersonic systems, supercomputing, biotechnology, and artificial intelligence, which Treasury calls “superintelligence” or SI. It would apply to investments above $50,000. Many ordinary financial investments, including stock purchases, would not be covered.

Treasury will accept public comments before issuing a final rule. Experts said companies may need stronger compliance programs, while the proposal signals that Washington is monitoring where U.S. capital goes. The rule could eventually give the outbound investment program more enforcement power.

The proposed rule would target investments connected to China, Russia, North Korea, and other “countries of concern.” The 2025 law behind it expanded the program to include Cuba and Iran as well. This broadens the geographic reach beyond the original China-focused restrictions created during President Biden’s administration.

The proposal specifically adds hypersonic systems capable of traveling at five times the speed of sound, supercomputing, biotechnology, and artificial intelligence. Treasury uses President Trump’s preferred term, “superintelligence,” or SI. Earlier restrictions covered sectors such as semiconductors, quantum computing, and artificial intelligence going into China.

The target is not every payment or financial product. The rule would focus on qualifying investments above $50,000 and exclude many financial investments, including stock purchases. Treasury’s goal is to limit capital that could help countries of concern develop military-relevant technology.

The proposed rule would apply only when an investment exceeds $50,000. That threshold limits the program to larger transactions rather than every small payment connected to a company or project. The rule is designed to screen significant outbound investment that might help build sensitive capabilities.

The proposal would also exclude many financial investments. Stock purchases are specifically mentioned as an example. This means buying shares would generally not be treated the same way as a covered investment in a high-tech business or activity, although the final rule will determine the precise boundaries.

Treasury has not issued the final version. It will first collect public comments on the proposal. The department’s approach therefore combines a dollar threshold with exclusions for common financial activity. Companies may still face more compliance work when their investments involve covered technologies or countries.

If U.S. capital helps fund artificial intelligence, biotechnology, or supercomputing industries in countries of concern, those industries could develop capabilities that support military power more quickly. The article describes investment screening as recognizing that capital can accelerate military-relevant capabilities, much like technology transfer can.

The key mechanism is financial support. Investment can help companies expand research, hire specialists, build computing capacity, and develop products. Those practical effects are a general explanation of how funding can speed innovation; the article’s experts specifically emphasize that capital can accelerate capabilities even without a technology transfer.

The proposed restrictions are meant to reduce that risk. They would monitor and limit some qualifying investments, while excluding many ordinary financial investments. The broader implication is that national-security controls may focus not only on exported equipment or software, but also on who receives American funding and what that funding helps build.

The process began in 2023, when then-President Joe Biden signed an executive order restricting some outbound U.S. investments. The initial focus included semiconductors, quantum computing, and artificial intelligence connected to China. The policy reflected concern that American investment could support another country’s military power.

Treasury later created the Outbound Investment Security Program to administer those restrictions. Congress then passed the Comprehensive Outbound Investment National Security Act in December 2025. That law codified the existing program, meaning it placed the effort into statute rather than leaving it based only on executive action.

The law also expanded the program. It added more technologies and more foreign countries, including Cuba, Iran, North Korea, and Russia. Treasury’s October 2026 proposal is intended to implement that broader law. It would add areas such as hypersonic systems, biotechnology, and supercomputing, subject to a $50,000 threshold and other exclusions.

Export restrictions control what technology or products cross a border. The article gives advanced computer chips as an example of sensitive goods whose export can be restricted. Such rules focus on preventing foreign access to particular equipment, software, or technical products.

Outbound investment restrictions focus on capital instead. They examine whether American money is entering companies or projects in sensitive sectors and countries. The purpose is to stop funding from accelerating military-relevant capabilities, even when no chip, software package, or other physical item is shipped. Craig Singleton said capital can accelerate capabilities just as technology transfer can.

The two approaches can operate together. The United States and China have restricted both sensitive technology exports and investment flows during their economic and technology rivalry. The proposed rule would add controls on certain investments while excluding many ordinary financial transactions, including stock purchases, and requiring Treasury’s final review.

Investment can accelerate technology because money gives companies resources to expand. It can support research, recruit skilled workers, obtain computing capacity, and develop products. The article’s central point is that capital can speed military-relevant capabilities just as technology transfer can.

The mechanism is indirect but powerful. A company receiving funding may be able to conduct more experiments, grow faster, or build larger technical operations. No physical equipment or software needs to cross a border for the investment to strengthen the company’s ability to create sensitive technologies. This explanation uses established economic reasoning alongside the experts’ statements in the article.

That possibility explains Treasury’s proposed approach. The department wants to track where U.S. capital is flowing and what capabilities it helps build. The proposal would not cover every financial transaction: investments must exceed $50,000, and many financial investments, including stock purchases, would be excluded.