The US says ASML’s top chip tool may be in China. ASML says it isn’t

According to Bloomberg, U.S. Commerce Secretary Howard Lutnick has, in a series of recent meetings, told senior ASML executives he’s concerned that one of the Dutch chipmaker’s extreme ultraviolet lithography machines — the EUV systems that are the only tools on Earth capable of printing the most advanced semiconductor patterns — may have ended up in China . That would be a major breach of export controls that have barred ASML from selling EUV to China since the first Trump administration. It’s a serious claim. Senior administration officials told Bloomberg they have evidence that ASML shipped EUV-related components and transport equipment to China, though they’ve declined, repeatedly, to show it — to Bloomberg or, apparently, to ASML itself. The company says no such machine exists in China and has never existed there. The Commerce Department didn’t respond to Bloomberg’s questions about whether it has evidence of an actual EUV system on Chinese soil. You might think this isn’t worth paying attention to if you’re outside the chip industry, but it is. ASML is a Dutch company most people have never heard of, but it is, by a wide margin, the most important company in the global AI buildout that isn’t named Nvidia or one of the hyperscalers. It makes the only machines on the planet capable of EUV lithography — the process of printing the microscopic circuit patterns that define the most advanced chips. …