The Chip War Enters Its Most Dangerous Phase as Washington Hunts a Missing EUV Machine
The Missing Machine That Could Reshape the Global Chip Race
When US Commerce Secretary Howard Lutnick told senior executives at ASML that he believed one of their extreme ultraviolet lithography machines may have ended up in China, he was raising an alarm that could reshape the entire architecture of the global semiconductor trade. EUV systems are the only tools on Earth capable of printing the microscopic circuit patterns that define the most advanced chips, and every cutting-edge processor made by TSMC, the foundry behind Nvidia and Apple silicon, depends on them. There is no second supplier. ASML spent roughly two decades and untold billions developing the technology, and its monopoly has made the Dutch firm Europe most valuable public company, with a market capitalization trading near $700 billion on the back of insatiable AI-driven demand.
The stakes could hardly be higher. If even one EUV machine reached Chinese soil, it would represent one of the most consequential breaches of the export-control regime the United States has built over the past several years to keep advanced AI capability out of Beijing military and industrial base. ASML CEO Christophe Fouquet, who sat down with reporters six weeks before the story broke, said the company tracks every machine it has ever shipped. “They are either in active use with monitored customers or have been dismantled and returned to the company,” he said. ASML built an internal firewall years ago: employees who can access EUV technology, documentation, and training are walled off from those who cannot, and its China-based staff sit on the wrong side of that wall by design.
Washington Tightens the Screws on Every Front
The EUV investigation is only the latest move in a rapidly escalating campaign. In September 2025, the Commerce Department revoked the validated end user status that had allowed TSMC, SK Hynix, and Samsung to operate chipmaking facilities in China under a fast-track export privilege. The change forced every shipment of American-origin chipmaking tools to those plants to require individual export licenses. Under Secretary of Commerce Jeffrey Kessler called the move part of a commitment to “closing export control loopholes, particularly those that put US companies at a competitive disadvantage.” The administration signaled it would allow former participants to keep operating existing facilities, but not to expand capacity or upgrade technology on Chinese soil.
The restrictions reach far beyond manufacturing equipment. A bipartisan bill moving through Congress would go much further than EUV, calling for an effective ban on all of ASML deep ultraviolet shipments to China, the less advanced lithography tools that account for roughly a fifth of the company expected 2026 revenue. The bill cleared a key committee in April, and the Trump administration has not yet taken a formal position. Meanwhile, controls on AI chips themselves have seesawed: Nvidia and AMD were allowed to resume exports of some previously banned made-for-China chips, even as the administration struck down the Biden-era AI diffusion rule that would have expanded controls on advanced AI chips globally.
China Counters With Its Own Arsenal
Beijing has not been passive. In early 2026, China enacted a Remote Access Security Act that closed what had been the cloud loophole for foreign technology companies. The law requires prior government approval for any IT solution with remote access to Chinese critical infrastructure, mandates data localization and source code disclosure for security justification, and imposes fines of up to five million yuan for violations. The regulation directly targets the maintenance and patch-distribution systems of Microsoft, Oracle, Intel, AMD, and Arm, forcing each to renegotiate how they operate inside China.
Alongside the regulatory offensive, China has accelerated its domestic chip development with substantial state investment. Government and semiconductor company R&D spending rose from $24 billion in 2024 to $26.4 billion in 2025, with a planned $29 billion in 2026, targeting $50 billion by 2030. SMIC, the national champion, is pushing toward 14-nanometer mass production in the first half of 2026 and a 7-nanometer target for 2027. Huawei HiSilicon is developing Arm-architecture processors independently, while YMTC advances 3D NAND technology and a growing roster of RISC-V startups pursue open-source designs specifically to evade US sanctions.
Analysts at Counterpoint Research frame the policy shift as reflecting “Washington broader push to tighten control over semiconductor equipment and technology exports to China, strengthening US power over chip production in China.” The financial impact on individual companies has so far been contained. TSMC Nanjing fab contributes less than three percent of the company total revenue and represents a minor share of its global capacity, making the direct cost of the VEU revocation manageable. But the strategic logic is clear: Washington wants to constrain the ability of any company to expand its supply chain footprint in China, particularly in strategic sectors.
The Supply Chain fractures Along New Lines
The result is a global semiconductor supply chain that is fracturing along geopolitical fault lines rather than commercial ones. TSMC faces what analysts call a difficult balancing act, maintaining its China operations while committing massive new investments in American manufacturing under tariff pressure. Samsung is leveraging South Korean neutrality to hedge between the two powers. SK Hynix must balance its Chinese memory facilities against American demands. The Chip 4 alliance, originally grouping the United States, Taiwan, Japan, and South Korea, has expanded to include the Netherlands and Germany, tightening cooperation in leading-edge chip design, manufacturing equipment, and materials.
The Commerce Department has also placed up to $150 million of taxpayer money into xLight, a startup developing next-generation light-source technology that could challenge the core of ASML EUV monopoly. Peter Thiel has backed Substrate, a separate startup explicitly pursuing its own EUV-rival technology. Whether these bets will pay off remains uncertain. ASML CEO Fouquet was polite about xLight but unconvinced that the company needs its technology to maintain its lead. What is certain is that the chip war has entered a phase where every move, from a missing machine to a startup investment, carries consequences that ripple across the entire global economy.