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Jun 19, 2026
Analyzed by GPT OSS 120B

US Accuses ASML of Possible EUV Leak to China – Company Denies

AI Summary
U.S. Commerce Secretary Howard Lutnick warned that a top‑tier EUV lithography system from Dutch chipmaker ASML may have ended up in China, a claim the company flatly rejects. The dispute spotlights a $700 billion monopoly and could reshape export‑control policy amid rising geopolitical tension.

Lead: US Raises Alarm Over Potential EUV Machine in China

The U.S. Commerce Department, led by Howard Lutnick, has told senior ASML executives that evidence suggests one of the company's extreme ultraviolet (EUV) lithography machines— the only tools capable of printing the most advanced semiconductor patterns—might be operating in China, a direct breach of export controls that have barred such sales since the Trump era. ASML insists no EUV system has ever been shipped to or operated in China.

US Commerce Secretary Raises Concern About a Possible EUV Leak

  • Meetings between Lutnick and ASML senior staff revealed U.S. officials believe EUV‑related components and transport equipment were sent to China.
  • U.S. officials have not disclosed the underlying evidence to Bloomberg or ASML.
  • ASML’s internal tracking system logs every EUV unit from production to decommissioning, and the company says none are in Chinese hands.

EUV Monopoly Valued at $700 billion and Revenue Stakes for 2026

  • ASML’s market cap hovers around $700 billion, making it Europe’s most valuable public company.
  • Approximately 20% of ASML’s projected 2026 revenue is expected from permitted sales of older deep‑ultraviolet (DUV) tools to China.
  • The EUV line accounts for the bulk of the company’s high‑margin earnings and has no direct competitor.

Implications for Global Chip Supply Chain and US Export Controls

If even a single EUV system were confirmed in China, it would represent a watershed breach of the export‑control regime designed to keep advanced AI‑capable chips out of Beijing’s military and industrial base. The allegation also fuels legislative moves, including a bipartisan bill that could ban all ASML DUV shipments to China—potentially cutting roughly one‑fifth of the firm’s anticipated 2026 revenue.

Future Outlook: Monopoly Pressure and Emerging Competitors

  • The Commerce Department is allocating up to $150 million to xLight, a startup aiming to develop a next‑generation light source that could challenge ASML’s EUV monopoly.
  • Peter Thiel‑backed Substrate is pursuing an alternative EUV‑rival technology, signaling growing interest in breaking ASML’s dominance.
  • ASML’s CEO Christophe Fouquet maintains that without an EUV machine on site, China cannot reverse‑engineer the technology, but the ongoing scrutiny could force stricter licensing or reshape the company’s global strategy.