All of their photolithography equipment is manufactured in the Netherlands by ASML https://www.asml.com/en https://www.asml.com/en Other companies are using t

All of their photolithography equipment is manufactured in the Netherlands by ASML https://www.asml.com/en https://www.asml.com/en Other companies are using the same equipment (Samsung and Intel) but TSMC has deeper expertise and got more out of the same equipment so far.