Commerce Department Writes Chip Toolmaker China Curbs Into Export Rules Before Nov. 9
The Commerce Department is converting a year of private warning letters to chip toolmakers into binding text inside the Export Administration Regulations.
It restricts China's access to equipment used to make 14-nanometer logic chips and imposes stricter licensing rules on AI processors from Nvidia and AMD.
Until now, those limits lived in letters sent quietly to individual companies. Written into regulation, they apply across the industry and are enforceable.
The targets are the three US firms that dominate chip-fabrication equipment, KLA, Lam Research, and Applied Materials.
The revenue damage is already disclosed
Lam Research expects China to fall below 30% of total revenue in 2026 as the restrictions limit what it can ship to certain customers.
The company pegged the hit at roughly $200M in second-quarter China sales and about $600M from full-year 2026 revenue.
Applied Materials guided to a similar ~$600M cost in 2026, with its China share sliding to the mid-20% range from levels near 40%.
KLA quantified its own damage at $300M to $350M spread across five quarters. Three companies, three separate disclosures, one direction.
The contraction is structural and policy-driven, not a demand cycle.
The Nov. 9 calendar is the real pressure point
The one-year US-China trade truce that suspended the Affiliates Rule, often called the 50% Rule, expires Nov. 9.
That rule extends Entity List prohibitions to unlisted companies owned at least 50% by blacklisted firms, widening the net of restricted buyers.
Washington said in September it agreed to push the suspension another three months, to Jan. 10. The Bureau of Industry and Security hasn't published an official notice making that change.
As of Oct. 2, no Federal Register notice had moved the date. Absent action, the rule snaps back automatically.
Two groups representing American researchers told members to plan for the old date regardless of the truce.
"Absent further BIS action, the rule is written to return automatically on that date."
Council on Governmental Relations and Association of University Export Control Officers
The issue brief urged treating Nov. 10, 2026 as the current planning date.
A Pentagon magnet sourcing ban takes effect Jan. 1 and touches roughly 78% of Defense Department programs, and three chip bills in the Senate defense authorization package have cleared committee.
For the equipment names, the guidance cuts are already on the record. What's unsettled is whether a verbal truce extension becomes law before the calendar decides.
