The Biden admin worked on this as part of the IRA and CHIPS, and a lot of bilateral treaties with Japan, Australia, South Korea, UAE, and India but now it's up in the air.
The Chinese government even attempted to lead a spamoflauge campaign against North American REE projects initiated by the Biden admin [0]
(And, you know, environmental regulations, so mining and refining sites don't turn into what's described in a sibling comment.)