That is a bit of an oversimplification of what happened. A lot of basic research was done by US labs. But it took ASML almost 20 years to convert this research

That is a bit of an oversimplification of what happened. A lot of basic research was done by US labs. But it took ASML almost 20 years to convert this research into a production ready system and nobody else succeeded. And they also got some big research grants from the EU[1] [1]https://cordis.europa.eu/project/id/28160 https://cordis.europa.eu/project/id/28160