Taiwan Semiconductor Manufacturing Company announced it is speeding up expansion at its site in Arizona. The chipmaker says the growth comes from demand for artificial intelligence and high-performance computing chips. The company says its plans will allow for a third of the production of some of its most advanced chips to be made in Arizona.

TSMC Chief Executive C.C. Wei said Thursday that the world’s largest contract chip maker would pull forward production timelines for some of its planned facilities by “several quarters.” The expansion is aimed at creating a “gigafab cluster” in Arizona, to support U.S. clients in businesses like AI and smartphones, he added.