Yeah, I feel like I'm missing something here, but in the other thread the guy says you can get everything you need for 5nm from Alibaba, but afaik to get to such small transistors (5nm) you need EUV lithography, and is there anyone other than ASML manufacturing those machines?
Lithography isn't the only way to construct transistor, it is possible to to construct much smaller transistors using alternative tech. Not in scale, though