>>518572807
>>518571815
Actually, the US can mine some rare earths, but it cannot refine or process them at industrial scale. Refining rare earths produces toxic gases, acidic wastewater, and radioactive waste that the US simply cannot handle without making costs skyrocket.
China doesn't care about these environmental issues and has been running state-led rare earth projects for over 40 years, giving them the world's best refining technology. Today, over 90% of global rare earth refining happens in China, and heavy rare earth processing is essentially only possible there.
As a result, rare earths have become a strategic weapon for China. Even, The US has to send rare earths mined on its own soil to China for processing. In other words, the US has rare earth elements, but it has no ability to use them. (It would take the US at least 10 years to reach China level rare earth refining technology)