There are (probably) various degree of success. Let's say that some X.Inc in China managed to manufacture EUV machines in 5 years. However, it's 3 time more exp

There are (probably) various degree of success. Let's say that some X.Inc in China managed to manufacture EUV machines in 5 years. However, it's 3 time more expensive and only quarter of lifespan compared to ASML. That's still a win since PRC gov can easily subsidize both fabricators to buy them and X. Inc to do more research. Of course it won't be competitive, but that's another goal.