China Stockpiles Over 340 ASML DUV Systems as U.S. Think Tank Calls for Complete Sales Ban
nashnova research
Chinese fabs had acquired roughly 343 immersion DUV lithography systems worth over $13 billion by early 2026; US think tank CTNSP now argues the case-by-case licensing regime is broken and calls for a blanket export ban — putting the US-Netherlands policy gap at the center of the debate.
What do 343 DUV machines actually mean?
Of the 343 immersion DUV systems Chinese fabs have stockpiled, about 270 are ASML Twinscan NXT:1980i units — the most capable lithography tool available without EUV.
China bought roughly 90 NXT:1980i units in 2024 alone, then another 89 in 2025 — near-identical pace, no sign of slowing.
This means → with EUV blocked, China has turned DUV hoarding into a strategic reserve for its alternative chipmaking roadmap, at a speed that caught most observers off guard.
Why didn't existing controls stop this?
The Netherlands began requiring export licenses for the NXT:2000i and above in September 2023, effectively blocking sales of the most advanced DUV tools to China.
In 2024 controls expanded to the NXT:1980i, but under a case-by-case review — not a blanket ban.
In plain terms = as long as a buyer applies on "mature-node" grounds, a license can still be approved; once the machine is delivered, end-use is hard to track.
CTNSP's core concern: tools purchased under the mature-node rationale can later be redeployed or modified for 7 nm logic chips and advanced memory needed for AI processors.
Can modified DUV tools really make advanced chips?
Immersion DUV — a lithography method that uses deep-ultraviolet light to pattern wafers, less precise than EUV but still capable at the 7 nm node — can produce 7 nm logic chips when combined with multi-patterning and other process modifications.
This reflects a core difficulty in equipment controls: a machine's capability ceiling is not fixed at the factory — process engineering can push it higher.
What does the think tank recommend?
CTNSP calls for a blanket export ban on immersion DUV systems to China, replacing case-by-case review entirely.
It also recommends restricting spare parts and maintenance services to advanced fabs. This means → even machines already delivered would face operational degradation over time.
The report floats a more aggressive path: if the US and Netherlands cannot align, Washington could unilaterally extend export controls to foreign-made equipment containing US technology — effectively reaching ASML without Dutch consent.
Where do the US-Netherlands talks stand?
Dutch Prime Minister Rob Jetten spoke with President Trump on export controls in early September 2026, saying he was "optimistic" about reaching an agreement.
The two sides have also held multiple rounds of talks on the MATCH Act and the broader importance of protecting the semiconductor supply chain.
In plain terms = whether a full ban materializes — and whether Washington and The Hague can agree on its scope — is the key variable for ASML's China business: a deal costs ASML its biggest China orders; no deal leaves the current loophole intact.
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