A typical EUV lithography machine weighs around 180 tonnes, carries roughly 100,000 parts, and needs several cargo aircraft to move. I think it’s fair to say that it’s not the kind of thing that one can easily slip across a border. Which is what makes Washington’s latest accusation against Europe’s most valuable company so odd.
The claim that an ASML EUV machine has reached China surfaced on 19 June, when Bloomberg reported that Commerce Secretary Howard Lutnick had told ASML executives, across a series of meetings, that he feared one of its most advanced tools had slipped into the country in breach of export controls. However, ASML’s answer to this accusation was blunt. They explained they have not shipped any machines, and no parts have been built specifically for one.
What is the US Actually Accusing ASML Of?
Per Bloomberg, senior officials say they hold evidence that ASML shipped specialty equipment to China of the type used to transport EUV machines, along with other components that could in principle be used in EUV systems. They have declined to produce it, citing sensitivity.
Officials separately flagged the technological support ASML provides to SwaySure Technology, a Chinese firm linked to Huawei and added to the US Entity List in 2024. ASML is permitted to work with SwaySure under current rules. No public evidence of an actual EUV machine in China has been produced.
Why Does One Machine Matter so Much?
EUV, or extreme ultraviolet lithography, is the only technology that can print the most advanced chips, the ones powering AI training clusters and high-end processors for Nvidia and Apple.
ASML is the sole company on Earth that builds them. The Netherlands has banned EUV exports to China since 2019, so a single confirmed machine on Chinese soil would mark a serious failure of the whole Western control regime.
So, What is ASML’s Defense?
ASML’s rebuttal is mechanical, not just legal.
As reports indicate, the company says there are 314 EUV machines operating worldwide, that any loss of connectivity is detected automatically, and that customers cannot remove, transport or relocate a system without ASML’s direct involvement, because of the specialised handling each one needs.
So, in short, these machines do not go missing, and they do not run alone.
Why this Lands on Europe
ASML is Europe’s most valuable company, and its exposure is real.
China was 36% of its net system sales in the final quarter of 2025, a share the firm expects to fall to roughly 20% across 2026 as controls bite, mostly from permitted older DUV tools. The dispute also pours fuel on the US MATCH Act, designed to pressure allies such as the Netherlands into matching American controls or having them imposed anyway.
Really, the deeper question is who sets the rules. Suspicion is not proof, and Washington has offered none in public. But the sight of a Dutch company enforcing a Dutch export regime under American pressure tells you how little room Europe has to run its own semiconductor policy.
See Also:
The MATCH Act: ASML’s China Lifeline Just Got a Kill Switch
European Tech Sovereignty: ASML’s Crown Jewel in the AI Race 2026
Why Is TSMC Refusing to Buy the World’s Most Expensive Chipmaking Machine?
Frequently Asked Questions
No. ASML says it has never shipped an EUV system to China, nor any component designed specifically for one. The Netherlands has banned EUV exports to China since 2019.
In June 2026, the US Commerce Department said it had evidence ASML shipped specialty equipment that can be used to transport EUV machines, plus components that could be used in EUV systems. ASML denies any breach of export controls.
EUV (extreme ultraviolet) lithography prints the most advanced chips and is banned for China. DUV (deep ultraviolet) is older technology, still sold to China under increasingly tight controls.
A 2026 US bill that would push allies such as the Netherlands and Japan to align with American export controls on chipmaking equipment, or face having those controls imposed by Washington.
