I should have been more specific. For components from US suppliers, the extreme hostility partnered with a reasonable threat of war means that a domestic equivalent MUST become available ASAP, european components should be prototyped and in final specification form, while japanese/korean components should be in intial design and requirements. Ultimately, China should have reasonable equivalents within the entire technological stack that are in production, but not excluding other suppliers. For example, had China already mass produced 10 nm chips under SMIC, the US likely wouldnt have sanctioned at 7 nm since it would only be marginal stretch of existing capabilities. For that same reason, stability is ensured by having the ability to produce the entire stack immediately but not displacing all suppliers yet.