https://www.autoblog.com/press-releases/rapid-gains-in-hybrid--el...

https://www.autoblog.com/press-releases/rapid-gains-in-hybrid--electric-vehicles-spark-demand-for-neodymium--other-rare-earth-magnets_19478/

A new study from The Freedonia Group, hybrid and electric vehicles (HEVs) will constitute the fastest growing segment of the nearly $3 billion global automotive magnets market through 2023 – and, in fact, the most robust growth market in the worldwide magnet industry overall.

While the outlook is still uncertain, some believe that the US would not be significantly impacted by this restriction over the long term, citing the rare earths capacities of countries like Australia, Myanmar, India, Vietnam, and Brazil. But others aren't convinced, as refining predominantly occurs in China and has significant negative environmental impact – impact that many countries might not be willing to absorb.

A few firms are taking experimental steps now to subvert China's rare earths stranglehold. In May 2019, Australian rare earths mining company Lynas partnered with Blue Line, a US chemical producer, to jointly build a refining facility for medium and heavy rare earths. Though the site will likely take years to begin operating, it could eventually provide a template for other producers outside of China to follow.

DYOR to determine if the Freedonia Group are credible. Either way, this is the exact type of information which has been discussed in this thread for a while now. Environmental impact which China is slowly moving on top of but other countries won't want to go near. And the only other refinery outside of Malaysia could be built in the USA but won't be operating for years.