Rare earths are essential to huge amounts of modern technology, such as electric cars and wind turbines.
The US government is to become the biggest shareholder in the country's only operational rare earths mine.
It's also going to take a series of other steps to underpin the future of the operation in Mountain Pass, California.
Rare earths are essential to huge amounts of modern technology, such as electric cars and wind turbines.
The access to these metals has been at the heart of a US-China trade war, with Beijing controlling about 90% of global mining capacity.
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