ASML is not a leaf in the dependency tree of the global semiconductor fab supply chain. It does in turn rely on several other highly specialized partners to sup

ASML is not a leaf in the dependency tree of the global semiconductor fab supply chain. It does in turn rely on several other highly specialized partners to supply them with custom-developed components for lithography machines, well-known ones are for example Zeiss and Trumpf (both based in Germany). These partners probably duplicate a significant amount of knowledge necessary to build EUV machines, considering that their components were developed in tight partnership with ASML.