WASHINGTON (Reuters) - A group representing auto suppliers in the United States called on Wednesday for immediate action to address China's restricted exports of rare earths and other minerals, warning the issue could quickly disrupt auto parts production.

China has introduced a tracking system for its rare earth magnet sector, three sources said, as its export restrictions on them begin to cut off customers around the world.

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. Several tra