The Wall Street Journal is reporting that U.S. automakers are seeking a workaround to avoid increased expenses resulting from President Donald Trump’s controversial tariff policy: relocating manufacturing to China.

“Four major automakers are racing to find workarounds to China’s stranglehold on rare-earth magnets, which they fear could force them to shut down some car production within weeks,” the Journal reports. “Several traditional and electric-vehicle makers—and their suppliers—are considering shifting some auto-parts manufacturing to China to avoid looming factory shutdowns, people familiar with the situation said.”