US Commerce Dept. Closes Offshore Subsidiary Loophole for Advanced AI Chip Exports

This move specifically names the highest-performance AI accelerators on the market. The chips explicitly covered by this expanded guidance include Nvidia's latest families—the Blackwell series and its successor, the Rubin architecture—as well as AMD's MI350x . Multiple reports cite these processors as the prime examples of the cutting-edge hardware the U.S. government seeks to keep out of Chinese hands through the newly closed subsidiary route .

The weekend timing of the announcement is itself a critical detail, signaling the administration's urgency. By acting on a Sunday, the Commerce Department aimed to immediately halt the channel before any additional large-scale shipments could be routed through overseas affiliates .

What the Guidance Actually Does

The new regulatory action is not a blanket ban on sales. Instead, it mandates a license review process . When a US chipmaker or its partners seek to export, re-export, or transfer these advanced semiconductors to an overseas subsidiary of a Chinese-headquartered firm, they must now apply for a license that the BIS will review on a case-by-case basis. BIS itself described the move as "guidance clarifying export license requirements that have been in place since 2023" , indicating a tightening of enforcement rather than the creation of an entirely new legal framework.

The Broader Context of AI Chip Controls

This subsidiary-focused guidance is just the latest chapter in an increasingly complex and rapidly evolving U.S. strategy to control the diffusion of strategic AI computing power. The landscape has seen several major, sometimes conflicting, developments in recent years:

• January 2025: An Interim Final Rule established a global license requirement for the most advanced computing integrated circuits and even certain closed-weight AI model weights, creating a three-tiered system for chip exports worldwide .
• January 2026: The administration simultaneously loosened some restrictions for mid-tier chips like the Nvidia H200 and AMD MI325X, while also codifying new security certifications and supply constraints for those allowed sales .
• Cloud Computing Front: Beyond physical chips, the U.S. House of Representatives passed the Remote Access Security Act in January 2026 to close a separate "cloud loophole," where Chinese firms had been renting access to powerful chips like Nvidia Blackwell GPUs through offshore data center arrangements without physically importing the hardware .

This new guidance on overseas subsidiaries, therefore, fits into a broader effort to seal off every avenue—physical shipments, legal corporate structures, and remote cloud access—that could grant Chinese firms the computational might of America's most advanced AI accelerators. The next frontier will likely be enforcement, as jurisdictions like Taiwan, Singapore, and Malaysia have historically been identified as points of weakness for rigorously monitoring re-exports .