Enforcement is the weak point: smuggling and grey-market routes through third countries
Congressional research and independent analysis both note the same problem: demand growth has made export controls hard to enforce, chip smuggling is reportedly widespread, and third countries including Malaysia and Singapore are alleged to function as grey-market routes. A control regime is only as strong as the customs posture of every country that can legally buy.
This is the structural weakness of any list-based export regime and it is not specific to semiconductors. The rule restricts a destination. The market routes around the destination. Enforcement then requires either extraordinary visibility into third-country resale or the cooperation of governments whose commercial interest runs the other way.
What makes chips harder than most controlled goods is that the item is small, extraordinarily valuable per kilogram, and functionally identical whether it arrived legitimately or not. There is no field test that distinguishes a smuggled accelerator from a licensed one once it is racked.
The policy consequence is that the effective control point is not the border but the cloud. Compute delivered as a service is far easier to attribute and revoke than compute delivered as hardware, which is a large part of why service-level restrictions keep reappearing in proposals.
Congressional Research Service — U.S. export controls and China: advanced semiconductors → · Mayer Brown — Administration policies on advanced AI chips codified → · Tom's Hardware — China is considering export controls on AI technologies →