Taiwan Semiconductor Manufacturing Co has begun producing advanced 4-nanometer chips for U.S. customers in Arizona, Commerce Secretary Gina Raimondo told Reuters, a milestone in the Biden administration's semiconductor efforts.

TSMC's chip foundry in Arizona is not just making one Apple chip, as a second Apple design is reportedly now in production at the facility.

TSMC's Arizona plant has apparently started making Apple Watch chips. Here's everything we know about Apple US production.

TSMC Arizona has just picked up its second contract from Apple: fab will make SiPs (Systems-in-Package) for Apple Watch, as well as A16 chips for iPhones.

Apple has expanded its production footprint in the United States, with its S9 chip for the Apple Watch now reportedly being manufactured

The bulk of TSMC’s production remains in Taiwan, but its efforts to build foundries abroad—notably Germany and the U.S.—seem to be attracting big-name chip customers. (The Germany fab is expected to come online by 2027.