S. S. government has been working for years to deny China and other adversaries investments that could help them boost their military power . S. investments in sectors such as semiconductors , quantum computing and artificial intelligence going into China. Treasury later established the Outbound Investment Security Program. In December 2025, Congress passed a law that codified and expanded the program to target more technologies and more foreign countries, including Cuba, Iran, North Korea and Russia. The inclusion of Russia in the proposed rule has come days after President Donald Trump waived sanctions on Russia following a diesel deal with President Vladimir Putin . The rule announced Thursday would expand the restrictions to cover investments in hypersonic systems capable of traveling at five times the speed of sound, supercomputing, biotechnology and artificial intelligence , though Treasury used Trump’s favored term for AI , “superintelligence” or SI. S. capital is flowing and what capabilities it is helping build,” said Craig Singleton, a senior fellow at the think tank Foundation for Defense of Democracies. The screening of outbound investments “recognizes that capital can accelerate military-relevant capabilities just as surely as technology transfer can,” Singleton said. ” Treasury’s rule to implement the 2025 law — the Comprehensive Outbound Investment National Security Act — would only apply to investments that exceed $50,000 and would exclude many financial investments, including stock purchases. Treasury will hear public comments on the proposal before issuing a final rule. S. trade official Ryan Majerus, now a partner at King & Spalding law firm.