MP Materials owns and operates Mountain Pass mine, the only rare-earth metal mine in the U.S. The company is government-backed and has a strategic partnership with Apple. It isn't profitable, however, ...

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Although "neodymium-praseodymium (NdPr)" may not be a term you use everyday, you most likely depend on its uses everyday. That's because NdPr is critical for making the super-strong magnets in ...