Wire · regulatory
US chip stocks slide on report of China's homegrown DUV lithography breakthrough
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◆ Verified
Fusion42 · 28 July 2026 · Fusion42 review
China has begun large-scale production of domestically developed immersion DUV lithography machines, historically supplied by a small group of foreign manufacturers including ASML. The announcement triggered a sharp sell-off in US semiconductor stocks, with ASML dropping over 7% and equipment makers and chipmakers declining alongside it.
This Wire brief sits within Fusion42's coverage of Semiconductors, and 5 sources have reported it between 27 Jul 2026 and 28 Jul 2026.
◆ ◆ The Wire takeaway
ASML and US equipment makers have just lost a market they could not defend. China's domestic DUV tools mean your customers in China will no longer need to buy from the West—and the US ban on selling DUV to China just accelerated the timeline by giving Beijing every reason to finish what they started.
◆ Coverage
5 sources · first reported 27 Jul 2026 · latest 28 Jul 2026
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