US Alleges Top ASML Chip Tool May Be in China, Dutch Giant Firmly Denies Claim

By Decode Today News

The US says ASML’s top chip tool may be in China. ASML says it isn’t Tech

A significant geopolitical and technological dispute is brewing, with the United States government expressing concern that one of ASML's highly advanced extreme ultraviolet (EUV) lithography machines, critical for producing the world's most sophisticated semiconductors, may have found its way to China. Such a development would represent a major breach of export controls established during the first Trump administration, which explicitly barred ASML from selling EUV technology to Beijing. ASML, the Dutch chipmaking equipment giant, has vehemently denied these allegations, stating unequivocally that no such machine exists, or has ever existed, in China. This serious claim, brought forth by U.S. Commerce Secretary Howard Lutnick in recent meetings with senior ASML executives, underscores the escalating tension in the global competition for technological supremacy, particularly in advanced AI capabilities. While U.S. administration officials reportedly possess evidence suggesting ASML shipped EUV-related components and transport equipment to China, they have so far declined to present this evidence to either Bloomberg, which first reported on the matter, or, according to ASML, to the company itself. The U.S. Commerce Department has remained silent on whether it possesses proof of an actual EUV system located on Chinese soil.

Why ASML's EUV Technology is Central to Global Power

For those outside the intricate world of semiconductor manufacturing, ASML might be an unfamiliar name. Yet, by a substantial margin, ASML is the most important company in the global AI buildout after industry titans like Nvidia and the hyperscalers. The Dutch firm holds a singular monopoly: it produces the only machines on Earth capable of EUV lithography. This intricate process involves printing the microscopic circuit patterns that define the most advanced chips, which are the backbone of modern AI, high-performance computing, and next-generation smartphones. Every cutting-edge processor, including those powering Nvidia's leading AI chips and Apple's powerful smartphone silicon, relies heavily on ASML's EUV tools. Developing this technology was an monumental undertaking, consuming roughly two decades and untold billions of dollars for ASML. Critically, there is currently no second supplier capable of producing comparable equipment, cementing ASML's indispensable position in the semiconductor ecosystem. This unchallenged monopoly has propelled ASML to become Europe's most valuable public company, with a market capitalization recently trading in the vicinity of $700 billion, a figure sharply buoyed over the past year by insatiable, AI-driven demand for advanced chips. The sheer scale of ASML's importance is precisely why the question of an EUV machine in China carries such weight. If even a single EUV system were to fall into Chinese hands, it would represent one of the most significant breaches of the export-control regime painstakingly constructed by the U.S. over the past several years. The primary objective of this regime is to prevent Beijing's military and industrial base from acquiring advanced AI capabilities, which are seen as crucial for future global influence and national security.

ASML's Defense and Commercial Strategy

ASML CEO Christophe Fouquet addressed concerns about the company's technology in China in an interview conducted weeks before the current allegations surfaced. Fouquet asserted that ASML meticulously tracks every machine it has ever shipped. According to him, these machines are either actively in use with monitored customers or have been dismantled and returned to the company. He stressed the impossibility of an EUV machine being secretly operational in China. Fouquet further elaborated on ASML's internal security measures, explaining that the firm established a robust "firewall" years ago. Employees with access to sensitive EUV technology, documentation, and training are strictly segregated from those without. This design specifically places ASML's China-based staff on the "wrong side" of that firewall, preventing their access to EUV secrets. He underscored the complexity of EUV technology, noting that while 80% of an EUV machine built upon decades of prior knowledge, solving the truly novel problem of generating EUV light itself took two decades. Fouquet's broader argument implies that reverse-engineering a machine one has never possessed is simply not feasible, and crucially, no entity in China has had an EUV machine. Beyond the technical and security arguments, there is a compelling commercial logic that mitigates against ASML risking its highly valuable export license for a clandestine sale to a Chinese customer. ASML does sell older-generation deep ultraviolet (DUV) tools to China, equipment it first shipped over a decade ago. However, Fouquet framed these sales as a strategic calculation aimed at protection, not a loophole. The intent, he suggested, is to maintain a generational gap, allowing customers to continue business without manufacturing a future competitor with its most advanced technology. ASML anticipates approximately 20% of its 2026 revenue will stem from these already-permitted sales to China. Jeopardizing the entire EUV ban would put this substantial revenue, and the company's standing as Europe's most valuable industrial monopoly, at risk for the sake of a single, illicit sale.

Uncertainty and Potential Conflicts of Interest

Despite ASML's strong denials and detailed explanations, the U.S. government's allegations remain unproven but unresolved, as no public evidence has been presented. It is prudent to withhold definitive judgment until the Commerce Department makes its evidence public. However, the situation becomes more complex when considering other developments involving key players. Under Secretary Lutnick's leadership, the Commerce Department last year committed up to $150 million in taxpayer money to xLight, a startup developing next-generation light-source technology. This technology has been discussed as a potential long-term challenger to the core of ASML's EUV monopoly. While xLight's CEO indicated the company sees itself as a future partner to ASML, aiming to integrate its hardware into ASML's machines rather than replace them, Fouquet in May politely expressed skepticism, making it clear ASML does not believe it needs xLight's technology to maintain its market lead. While no public information directly links Lutnick's scrutiny of ASML to his agency's investment in xLight, the scenario of a federal official examining a monopoly while his agency funds a startup aiming to enhance or eventually compete with that monopoly's core technology certainly warrants closer examination. xLight is not the only external bet on the future of lithography. Peter Thiel, known for his ties to political circles, has backed Substrate, another startup explicitly pursuing EUV-rival technology. Substrate reportedly harbors ambitions to compete more directly with ASML than xLight suggests it intends to. Further adding to the intricate web of pressures, a bipartisan bill currently moving through the U.S. Congress proposes even broader restrictions. This bill would effectively ban all of ASML's deep ultraviolet (DUV) shipments to China. These less advanced lithography tools currently account for approximately one-fifth of ASML's expected 2026 revenue. The bill successfully cleared a key committee in April, though the Trump administration has not yet taken a formal stance on its passage.

The Broader Geopolitical Stakes

The unresolved tension surrounding the U.S. allegations against ASML highlights the fierce global competition for technological leadership, particularly in the realm of artificial intelligence. ASML's unique position as the sole supplier of EUV technology makes it a linchpin in this struggle, with its machines determining which nations can produce the most advanced chips. The accusations, and ASML's firm denials, underscore the critical importance of export controls in shaping geopolitical power dynamics and ensuring that advanced capabilities do not fall into unintended hands. As the world increasingly relies on sophisticated semiconductors for everything from AI development to national defense, the movements and control of ASML's technology will continue to be a focal point of international relations and trade policy for years to come.

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US Alleges Top ASML Chip Tool May Be in China, Dutch Giant Firmly Denies Claim