Comment by MobiusHorizons

ASML for those who don't know is a Dutch company, and supplies the EUV machines for both TSMC and Intel (It is not clear to me if Samsung uses EUV in its current process nodes). I believe they are the only EUV supplier in the world. There are certainly other suppliers other that ASML, since there is a lot of other equipment other than lithography, but that's a critical one for modern process nodes.