Maybe earthquake risk (though they are still in earthquake prone areas elsewhere)? https://semiengineering.com/recent-earthquakes-highlight-risk-to-semiconducto

Maybe earthquake risk (though they are still in earthquake prone areas elsewhere)? https://semiengineering.com/recent-earthquakes-highlight-risk-to-semiconductor-manufacturing-sites https://semiengineering.com/recent-earthquakes-highlight-ris...