The U.S. government thinks one of the most tightly controlled machines on Earth may have slipped into China, and it won’t show its proof. According to TechCrunch AI, citing Bloomberg, Commerce Secretary Howard Lutnick has told senior ASML executives in recent meetings that he’s worried one of the Dutch company’s extreme ultraviolet (EUV) lithography systems ended up on Chinese soil. If true, that’s a major breach of export controls that have blocked ASML from selling EUV to China since the first Trump administration.
ASML flatly denies it. The company says no such machine exists in China and never has.
What the U.S. is actually claiming
Senior administration officials told Bloomberg they have evidence that ASML shipped EUV-related components and transport equipment to China. The catch: they’ve repeatedly declined to show that evidence, to Bloomberg or, it seems, to ASML itself. The Commerce Department didn’t respond when Bloomberg asked whether it has proof of an actual EUV system in China.
So right now we have a serious accusation, a firm denial, and no public evidence. As TechCrunch AI puts it, it’s worth withholding judgment until the government makes its case.
Why ASML matters this much
Most people have never heard of ASML. They should. Outside of Nvidia and the big cloud providers, it’s arguably the most important company in the entire AI buildout.
Here’s why:
- ASML makes the only machines on the planet capable of EUV lithography, the process that prints the microscopic circuit patterns on the most advanced chips.
- Every cutting-edge processor from TSMC, the foundry behind Nvidia’s and Apple’s chips, depends on ASML tools.
- There is no second supplier. The technology took roughly two decades and billions of dollars to build.
That monopoly has made ASML Europe’s most valuable public company, with a market cap hovering around $700 billion this week. So if a single EUV machine reached Beijing, it would be one of the biggest cracks yet in the export-control wall the U.S. has spent years building to keep advanced AI capability away from China’s military and industry.
ASML’s defense
TechCrunch AI’s reporter sat down with ASML CEO Christophe Fouquet six weeks ago, before this story broke, and asked about China directly. Fouquet’s answers cut against the allegation:
- ASML tracks every machine it has ever shipped. Each one is either in active use with a monitored customer or dismantled and returned.
- The company built an internal firewall years ago. Staff who can touch EUV technology and documentation are walled off from those who can’t, and ASML’s China-based employees sit on the restricted side by design.
- You can’t reverse-engineer a machine you’ve never had, and Fouquet says nobody in China has had one.
There’s also plain business logic. ASML expects about 20% of its 2026 revenue from already-permitted sales of older deep ultraviolet (DUV) tools to China. Risking the entire EUV ban, plus its standing as Europe’s most valuable monopoly, over one illegal sale makes little commercial sense.
The part worth watching
What stands out here is the conflict-of-interest question. Late last year, Lutnick’s Commerce Department agreed to put up to $150 million of taxpayer money into xLight, a startup developing next-generation light-source technology that some see as a long-term challenge to ASML’s EUV core. Nothing public connects that investment to Lutnick’s sudden pressure on ASML. It could be unrelated. But a federal official scrutinizing a monopoly while his own agency has money riding on a startup angling at that monopoly’s core technology is worth examining.
xLight isn’t the only bet. Peter Thiel, who has long ties to Trump’s orbit, has backed Substrate, another startup chasing EUV-rival technology more aggressively.
There’s a legislative angle too. A bipartisan bill moving through Congress would ban all of ASML’s DUV shipments to China, not just EUV. It cleared a key committee in April, and the Trump administration hasn’t taken a formal position.
What to expect next
For now, this is an accusation without public proof. The pressure point to watch is whether Commerce produces evidence, or whether the DUV bill advances and forces a wider decoupling from China. Either move would ripple straight through the chip supply chain that every AI company depends on. More details are available in the original TechCrunch AI report.