China's dominance in rare earths minerals can cause a shortage for US consumers in everything from cars to TV remotes.

In return, Trump said, the U.S. will provide China “what was agreed to,” including allowing Chinese students to attend American colleges and universities.

Automakers are having to find ways to work around the cutback, such as using older technology that is more costly and less efficient, moving some parts manufacture to China, removing certain special features that need magnets such as adjustable seats and high-end speaker systems,