I have no knowledge of the situation, why did they choose Arizona?
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Many felt WA was in the running because of the talent already there.
This caused concerns that the future of the WaferTech fab facility is dimmer than before, since it probably makes less sense to pump billions more into it in the future.
In Washington State they are, although existing plants are grandfathered.
I guess they could expand the UGB, which is what the Eastern Washington counties do in order to attract manufacturers.