A Chinese state-backed company has begun mass-producing domestically developed immersion deep ultraviolet (DUV) lithography machines — a category of chipmaking equipment Dutch supplier ASML has dominated for decades — sending ASML shares down as much as 8% on July 27, their sharpest single-day drop since early June.
Shanghai Aishengna Electronic Technology Group, a little-known state-owned firm that incorporated development teams from several Chinese lithography startups including Shanghai Yuliangsheng Technology, is leading the effort, according to Reuters’ reporting.
Deliveries are planned this year to three of China’s largest chipmakers: Semiconductor Manufacturing International Corp (SMIC), Hua Hong Semiconductor, and ChangXin Memory Technologies (CXMT).
The caveat that matters for investors
Production starts small — roughly five machines in 2026, scaling to about 20 in 2027 — against ASML’s own guidance of approximately 130 immersion systems shipped in 2026 alone, a 98.7% global market share.
Analysts told CNBC the news should be read with real caveats: the domestic tools reportedly lag ASML by roughly a generation on throughput, overlay accuracy, and long-term reliability, and still depend on Japanese suppliers for certain critical components.
Critically, SMIC already produces 7-nanometer-class chips today using older ASML DUV tools — meaning this milestone doesn’t unlock a new performance tier for Chinese chipmakers. What it does is give them a domestic supply path that can’t be cut off by a future U.S. or Dutch export-policy decision.
Why the market reaction still matters
The selloff wasn’t contained to ASML. Semiconductor equipment suppliers BE Semiconductor Industries, Soitec, and Infineon all fell alongside it, reflecting broader investor anxiety about China’s semiconductor self-sufficiency drive — one of President Xi Jinping’s stated top priorities.
ASML CEO Christophe Fouquet and CFO Roger Dassen addressed the pressure on the company’s own July earnings call, guiding to roughly flat 2026 shipment volumes versus 2025 and planned capacity increases in 2027 and 2028, effectively betting that AI-driven demand growth outpaces whatever share China’s domestic tools eventually capture.
What to watch next
- Whether the Chinese tool actually hits its 2026 and 2027 production targets, given reported supplier delays.
- Whether pending U.S. legislation restricting ASML sales and servicing to SMIC, Hua Hong, and CXMT accelerates China’s push toward domestic tools.
- Whether China’s DUV milestone is followed by any credible progress toward EUV lithography, the more advanced technology ASML still uniquely controls.
Helpful Sources
- China Begins Domestic DUV Chipmaking Tool Production, Report Says — Global Banking & Finance
- China’s reported chip breakthrough comes with some big caveats — CNBC
- China Makes First DUV Lithography Machine: Supply Independence, Not New Nodes — Tech Times
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