WASHINGTON — The Treasury Department on Friday proposed sweeping new disclosure rules for foreign investment in American technology companies, signalling that the administration is prepared to expand the perimeter of mandatory review well beyond the boundaries Congress drew six years ago.
The draft rules, released for public comment, would require pre-closing notification to the Committee on Foreign Investment in the United States for any minority equity investment above $5 million in companies whose primary business involves designing leading-node semiconductors, training large AI models, or operating critical-data infrastructure.
What the rules would do
Under current law, only investments that confer a degree of control or board access trigger mandatory notification. Most minority stakes are voluntary disclosures, which the Committee can review only if it learns of them through other channels — usually media reports or competitor complaints.
The proposed rules would lower the trigger to passive minority investments above the dollar threshold whenever the target sits inside the three named categories. They would also expand the look-back period for retroactive review from two years to four.
Why now
Officials describe the move as a response to a pattern that has emerged since the last revision. Foreign capital has increasingly arrived through limited partnerships and silent co-investment structures whose ultimate ownership is harder to trace and whose investment thesis is harder to assess.
The Treasury's own data, released alongside the draft, show that voluntary disclosures of such structures fell sharply during 2024 even as deal activity in the affected sectors rose. Officials view the divergence as evidence that the existing framework is being routed around.
The compliance cost
Industry groups have already begun to push back. Venture-capital firms argue that the new threshold would sweep in routine syndicated rounds where the foreign limited partner has no operational role and no special information rights.
The Treasury's economic-impact analysis estimates 1,400 additional notifications a year, which the Committee believes it can process without significant new resources. Critics dispute that estimate.
The broader policy frame
The rules are the latest move in a multi-year pivot toward treating semiconductors and frontier AI as categories of strategic concern with their own regulatory architecture, parallel to but distinct from traditional defence-export controls.
That frame has bipartisan support in principle but tactical disagreement in practice. The chairs of two relevant House committees indicated within hours of the release that they would press for the categories to be defined more narrowly. The chair of the equivalent Senate committee called the draft “the right scope” and signalled it had her support.
The window for comment
The Treasury has set a sixty-day comment period. Industry letters are likely to focus on three areas: the dollar threshold, the breadth of the AI category, and whether passive co-investment vehicles should be exempt under specified conditions.
The administration retains the option to issue an interim final rule before the comment period closes if it determines that the volume of activity in the affected categories warrants faster action. Officials said no such determination has yet been made.
