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Apple's mobile chips are now made in the U.S. — TSMC produces the older A16 Bionic at its Arizona fab
(www.tomshardware.com)
This is a most excellent place for technology news and articles.
These facilities are expensive, like 20-30B for the big ones. If you're curious youtube has some good long videos on how these places work. As far as I've checked all the gov grants given to companies as incentives (whether chips or energy or other infrastructure projects) only partially cover the costs of construction.