U.S. says ASML's top chip tool may be in China; ASML denies it

TechCrunch reported that U.S. officials have raised concerns with ASML about whether one of its extreme ultraviolet lithography systems, or related components and transport equipment, may have ended up in China. ASML says it tracks every EUV machine it has shipped and that no such system exists, or has ever existed, in China. The dispute matters because EUV tools are central to the most advanced AI chips and are subject to long-running export controls. TechCrunch also notes that a bipartisan bill would tighten restrictions on ASML's less advanced DUV shipments to China, which could affect a meaningful slice of ASML's 2026 revenue.

Key details: Published June 19, 2026 at 07:59 UTC, U.S. officials are questioning whether EUV-related ASML equipment reached China, ASML says no EUV system exists or has existed in China, A separate U.S. bill would restrict ASML DUV shipments to China.

Why it matters: Advanced-chip export controls are moving from abstract rules to disputes over the physical supply chain that underpins frontier AI compute.