A House China Committee letter pushed Commerce to keep an AI-chip loophole closed.
Chairman John Moolenaar asked the Bureau of Industry and Security to clarify that the Foundry Due Diligence Rule remains in effect, after uncertainty over rescinded AI diffusion rules raised questions about whether front-end fabs must screen advanced-chip orders tied to Chinese entities.
What happened
The Select Committee on the Chinese Communist Party published an August 10 release saying Moolenaar sent BIS official Jeffrey Kessler a letter asking the bureau to clarify that the Foundry Due Diligence Rule still applies. Reuters-syndicated reporting said the request followed concern that Chinese designer Sophgo previously used TSMC-made chips later found inside Huawei AI processors.
Why it matters
The development is narrow but material: advanced-chip export controls increasingly depend on verification by foundries, packaging firms and overseas subsidiaries, not only direct sales bans. If enforcement ambiguity lets front companies route around controls, export policy becomes a paperwork system around the actual supply chain.
What to watch
Whether BIS issues targeted guidance, a replacement rule, or no action; whether TSMC and other fabs treat unvetted advanced-die orders as license-triggering; and whether Congress turns the due-diligence dispute into a binding statutory requirement.
The caveat
This is a lawmaker pressure campaign and committee record, not a new Commerce rule. Commerce, Huawei, Sophgo and TSMC did not provide comments in the Reuters-syndicated report.