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US to award Samsung up to $6.6 billion chip subsidy for Texas expansion, sources say
(www.reuters.com)
This is a most excellent place for technology news and articles.
Your missing another big part and that's unions are hamstrung down there. A lot of places in the Midwest offer similar advantages, ports aren't as good but you can still ship a lot on the great lakes, but they won't go there because they're afraid of unions.