U.S. Treasury Proposes Expanding Tech Investment Restrictions as China Signals Possible Countermeasures
Key Facts
On October 22, 2026, the U.S. Treasury Department issued a proposal to update its Outbound Investment Security Program, adding biotechnology to the scope of technology sectors subject to restrictions on U.S. persons’ investments in covered foreign entities. Treasury Secretary Scott Bessent said the proposed rules aim to prevent adversaries from using U.S. investment to develop biotechnology that threatens national security. The measure remains at the proposal stage, with Treasury opening a public comment period before preparing final rules. The program targets certain investment transactions that could support the development of sensitive technology capabilities. The proposal thus expands an existing outbound investment review framework, without yet setting a start date for the changes.
The statutory authority covers five technology sectors: semiconductors and microelectronics, artificial intelligence, quantum information technologies, high-performance computing and supercomputing, and hypersonic systems. Treasury added biotechnology to the proposed regulations, broadening the areas that may be subject to oversight. According to the department’s statement, U.S. persons would have to notify Treasury of certain transactions, while other transactions would be prohibited depending on the technology and foreign entity involved. This means the proposal does not impose a blanket ban on all investment in the listed sectors, but distinguishes between transactions requiring notification and those that are prohibited. The final rules will later set out implementation details and the effective date.
China’s Ministry of Commerce responded on October 24 by objecting to the proposal, saying it discriminatorily expands and intensifies investment restrictions on China and disrupts normal commercial cooperation between companies in the two countries. The ministry reserved the right to take countermeasures, without announcing specific steps in its statement. Beijing urged Washington to stop broadening the concept of national security and politicizing trade issues, and warned that investment restrictions harm economic and trade cooperation as well as the interests of U.S. companies themselves. The response places the dispute within broader tensions over technology and investment restrictions between the world’s two largest economies. The Chinese statement did not announce any imminent countermeasure or timetable.
The move comes amid a mixed picture for foreign investment in China. Actually utilized foreign investment fell 4.3% year on year in the first nine months of 2026, while rising 2.5% in September alone compared with the same month a year earlier. By contrast, high-tech industries recorded utilized foreign investment flows of 2285.3 billion yuan from January to September, up 33.8% year on year, accounting for 41.6% of the total. Actual investment from the United States into China also rose 7.7% over the same period, according to China’s Ministry of Commerce. The figures show continued flows into high-tech sectors despite a decline in overall foreign investment, as the U.S. side proposes expanding oversight of funding linked to sensitive technologies.
According to an Associated Press report, the proposal applies only to investments exceeding 50,000 dollars, with many financial investments, including stock purchases, exempt. That threshold gives the proposal a practical scope as described in the coverage, alongside Treasury’s distinction between transactions that must be reported and those that are prohibited. Available information has not established price movements for any specific companies’ shares as a result of the announcement, so no specific market response is attributed to the proposal. The change’s significance remains tied to investment activities involving the sectors and entities to be defined by the rules, rather than simply owning company shares. The final regulatory boundaries are expected to become clear after consultations conclude.
Treasury set December 7, 2026, as the deadline for public comments and said it would review submissions before issuing final implementing regulations. Those regulations will set the program’s effective date, meaning the proposal published in October does not by itself establish an operative implementation date. On the U.S. economic data front, the Census Bureau is scheduled to release its advance estimate of the September goods trade deficit on October 28. The release follows the announcement of the proposal, but remains an economic report separate from the process for adopting the investment rules. The next regulatory step is the end of the comment period, followed by publication of the final version.