The EUV Allegation Against ASML: Evidence Not Shown, Pressure Clearly Applied

Gillian Tett

U.S. Commerce Secretary Howard Lutnick told senior leaders of Dutch chip equipment maker ASML in a series of recent meetings that Washington is concerned one of the company’s extreme ultraviolet lithography machines may have made its way to China in violation of U.S.-led export restrictions. ASML denied the allegation directly and in writing, stating it has never shipped an EUV machine to China and has not shipped any component, module, or equipment specially designed for use in an EUV machine to China. ASML’s shares fell as much as 2.7% in Amsterdam on Friday following the reports.

YourDailyAnalysis pinpoints the structural problem with the U.S. government’s position: Lutnick’s team has told journalists it possesses evidence that ASML shipped EUV-related components and transport equipment to China, but has declined to show that evidence to the press or, apparently, to ASML itself. Raising the concern publicly without presenting the underlying evidence to the company creates maximum reputational pressure with minimum procedural accountability.

The technical context matters. EUV, extreme ultraviolet lithography, is the only technology currently capable of printing advanced semiconductor patterns at the 7-nanometer node and below. ASML is the sole manufacturer of EUV systems worldwide. China’s inability to acquire EUV machines is the single most effective chokepoint in Western technology export control architecture, because no alternative supplier exists and the machines cannot be reverse-engineered within any commercially viable timeframe.

ASML does sell older-generation deep ultraviolet tools to Chinese customers. ASML CEO Christophe Fouquet has framed that as a protective calculation keeping a generational gap while maintaining some customer relationships without enabling leading-edge chip manufacturing. ASML expects roughly 20% of its 2026 revenue from already-permitted sales to China. The bipartisan MATCH Act proposes to extend restrictions that apply to U.S. chip equipment companies to allied-nation firms including ASML, effectively banning even DUV immersion tool sales to China. YourDailyAnalysis benchmarks that legislative threat as the more immediately consequential pressure on ASML’s business, with the EUV allegation adding negotiating leverage for Washington regardless of whether the underlying concern proves founded.

The Dutch government enforces the EUV licensing requirement strictly and steps in where necessary. U.S. Ambassador to the Netherlands Joe Popolo recently suggested that a favorable U.S.-EU trade deal would take some pressure off the MATCH Act bill. That sequence – EUV concern raised, MATCH Act advanced, trade deal dangled – is a recognizable pressure campaign.

The meeting sequence is consistent with an ongoing negotiation rather than a standalone enforcement action. ASML is now in the position of proving a negative: demonstrating that a machine it denies having shipped is not in China, which requires providing the U.S. with detailed records of its global installed base, shipping history, and component tracking.

The company’s stock – up roughly 78% in 2026 before Friday’s drop – had reflected market confidence that ASML’s dominant position in the global chip equipment supply chain is durable. A protracted U.S. government investigation, whether substantiated or not, introduces a regulatory overhang that affects customer confidence and long-term procurement planning. YourDailyAnalysis interprets the 2.7% stock move as a measured response to an uncertain situation: not the reaction to a confirmed violation, but a price for ambiguity.

The Commerce Department did not respond to multiple queries on whether the agency has any evidence indicating that there is a functioning EUV machine in China. That silence is unusual when a public allegation has been made against a specific company.

Watch for whether the Commerce Department issues a formal inquiry letter to ASML, whether ASML provides documentary records to the U.S. government in response, and whether any MATCH Act provisions advance further before a U.S.-EU trade deal is finalized. Your Daily Analysis closes on the most important distinction: the allegation that an EUV machine is in China and the allegation that ASML did something wrong are not the same allegation – and the difference between them will determine whether this is an enforcement story or a diplomatic one.

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