ASML export controls stopped being about one stalled license this month and became a full regime. The United States just published the broadest set of chip restrictions in decades, built to cut China off from advanced semiconductors and the tools that make them, and ASML is caught in the fallout whether it likes it or not. EUV has been off-limits to China since 2019. Now the rules reach further down the stack, and the question I have been expecting for three years has landed: how much of the rest of ASML’s catalog gets pulled into the net.
The October rules restrict equipment for making advanced logic below roughly the 16 and 14nm class, plus certain advanced memory, and they do it through provisions that reach any tool with enough US content or US personnel attached. That last part bites ASML directly. The company is Dutch, but its machines are stuffed with American components and serviced in part by American engineers, and the rules now bar US persons from supporting restricted production in China without a license. ASML has already told its American staff to stop servicing certain Chinese customers while it works out what is actually allowed. So a Dutch firm is now reshuffling who on its payroll may set foot in a Chinese fab, on orders that originate in Washington.
Washington wants the restrictions as wide as possible and is leaning hard on the Netherlands to match its rules, China is one of ASML’s larger markets and wants to keep buying everything it can, and the Dutch government sits in the middle weighing an alliance against the commercial interests of its most important company. That is the vise, and ASML has almost no say in how it gets cranked. Peter Wennink, who runs ASML, has been openly skeptical in public, arguing controls like these mostly push China to build its own tools faster. Nobody in The Hague or Washington seems to be listening very hard. ASML builds the one tool this whole fight is about, and it gets no vote on how the fight ends.
EUV stays entirely blocked from China, as it has been for years, while DUV, including the high-end immersion tools that can make fairly advanced chips with enough multi-patterning, is still mostly allowed under the current Dutch rules. That gap between the two is the whole game right now. China is buying as much DUV as it can while the buying is good, and ASML is selling it, because nothing in the current Dutch rules stops it. I do not expect the line to hold. The American controls are built to choke advanced production, and immersion DUV in enough quantity reaches further up the node stack than Washington is comfortable with, the way SMIC has been climbing toward FinFET on tools it is still allowed to buy. The pressure to restrict DUV too is obvious; it is only a question of how fast The Hague moves.
China is a significant share of ASML’s system sales, and the immersion and DUV business there is real money, not a rounding error. Tighten the rules to cover DUV and a meaningful slice of revenue goes at risk, even with demand everywhere else strong enough to absorb the hit for now. ASML’s public line is that long-term demand is unchanged and restricted China sales will be made up elsewhere. That may even be true. What it does not touch is the strategic discomfort of a company whose most important relationship, the one with its own customers, is now subject to veto by governments on two continents.
High-NA EUV, the system built around Zeiss’s enormous new optics, is well into development and headed for its first shipment to a customer. It will be the most expensive and most complex lithography tool ever made, each one expected to cost on the order of 300 million dollars or more. High-NA extends ASML’s lead at exactly the moment the company would rather not draw more attention, because every step further ahead pulls the chokepoint tighter and raises the political stakes. Every watt of capability ASML adds is one more reason a government wants a veto over where the machine ships.
I called this in 2021, which gives me no satisfaction at all, because the direction was never hard to read. Governments do not find a chokepoint this clean and leave it alone. They use it, then they look for the next thing to restrict. EUV was the first restriction. DUV is the obvious next one, and the only real question is timing. ASML keeps building better machines and booking record orders, and its long-term outlook still reads as fine. All of that is probably true and beside the point. The company got too important to be left alone, and the same machine that made it the most valuable tech firm in Europe parked it permanently inside someone else’s foreign policy.