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According to TechCrunch, U.S. Commerce Secretary Howard Lutnick has held a series of meetings with senior leadership at ASML expressing concerns that one of the company's most advanced chipmaking tools may have ended up on Chinese soil. These extreme ultraviolet (EUV) systems are currently the only machines in existence capable of printing the microscopic circuit patterns required for the world's most sophisticated semiconductors.
A potential breach of export controls
The situation represents a significant escalation in trade tensions, as EUV systems have been strictly barred from sale to China since the first Trump administration. Senior officials within the U.S. government told Bloomberg they possess evidence that ASML shipped components and transport equipment related to these machines to China. However, the administration has repeatedly declined to provide specific documentation to either the press or ASML itself.
ASML has firmly denied these allegations, stating that no such machine exists in China and never has. The company maintains a rigorous tracking system for its hardware, asserting that every unit is either in active use with monitored customers or has been dismantled and returned to the firm. CEO Christophe Fouquet previously emphasized that ASML employs an internal firewall to separate staff who have access to EUV technology from those based in China.
The strategic importance of ASML's monopoly
Despite being a relatively unknown name to the general public, ASML is arguably the most critical player in the global AI infrastructure outside of Nvidia. The company holds a total monopoly on EUV lithography, a process that took two decades and billions of dollars to perfect. Every cutting-edge processor produced by TSMC—the primary foundry for Apple and Nvidia—relies on these specific tools.
The stakes of this potential breach are high due to ASML's massive market influence:
- ASML is currently Europe's most valuable public company, with a market capitalization near $700 billion.
- A single illegal sale could jeopardize the entire U.S.-led export-control regime designed to protect military and industrial advantages.
- The company expects roughly 20% of its 2026 revenue from permitted sales to China, making a total ban commercially devastating.
Commercial logic vs. government suspicion
Fouquet has argued that the complexity of EUV technology makes it nearly impossible for China to reverse-engineer without having physical access to a machine first. He further suggested that ASML has a commercial incentive to follow rules, as risking its entire export license over one clandestine sale would be counterproductive. While the government has not yet made its evidence public, the tension highlights the precarious balance between maintaining global supply chains and enforcing national security boundaries.