Electric-vehicle parts makers are pivoting as EV investments through federal initiatives and automaker partnerships dry up, The Wall Street Journal reports.

Magna International, an auto parts supplier that expanded its GM partnership five years ago, opened a massive Michigan facility that is now mostly idle as GM and other automakers keep adjusting their EV-related plans.

They're also having trouble forecasting American drivers' expectations over the next few years, as EV adoption takes hold overseas.

"The magnitude of uncertainty is unparalleled," Magna CEO Swamy Kotagiri says.