REE deposits which contain the Core Four basket, therefore, are highly desirable and the companies working to develop them in the US – such as MP Materials Corp. (NYSE: MP), currently the only rare earth mine in the US, and American Rare Earths Limited (ASX: ARR | OTCQX: ARRNF | ADR: AMRRY), building a project in Wyoming that also has the Core Four – are particularly strategic assets in the geopolitical struggle for high tech power. QUOTE ARR In a strong position to be recognised as the next major player in the US heavy rare earth industry IMO
