Commerce closes AI chip overseas subsidiary loophole

The US Commerce Department issued Sunday guidance to close a potential export-control loophole involving advanced AI chips and overseas subsidiaries of Chinese-headquartered firms. Senators Elizabeth Warren and Andy Kim criticised the Trump administration for delayed rule updates and called for Commerce Secretary Howard Lutnick to testify before the Senate Banking Committee. The signal is rising political scrutiny over enforcement gaps in US AI-chip controls.

• Guidance targets Chinese-headquartered firms' foreign entities

• Senators demand testimony highlighting national security oversight gaps

The fact

On Sunday, the US Commerce Department issued guidance to close a loophole that may have allowed Nvidia's advanced Blackwell AI chips to reach overseas subsidiaries of Chinese-headquartered companies. Senators Elizabeth Warren and Andy Kim criticised the Trump administration for not updating export-control rules over the past year and a half, warning this may inadvertently strengthen China's military capabilities, and called on Commerce Secretary Howard Lutnick to testify before the Senate Banking Committee.

The Assessment

The guidance shifts enforcement from border-checking to corporate-structure tracing. Oversight now extends beyond physical shipment destination to parent-company ownership and subsidiary affiliation. For US chipmakers and cloud providers, compliance will require mapping ultimate parent entities and tracking downstream buyer relationships - a significant expansion of due-diligence obligations compared with destination-based controls. The practical question is whether chipmakers can adapt their compliance systems fast enough to keep pace with the new regime.

What to Watch

Watch whether Commerce applies retroactive licence requirements, how Nvidia adjusts screening processes, and whether Senate Banking Committee hearings follow Warren-Kim demands.