Rare earth elements (REEs) are a collection of 17 elements composed of cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium, and yttrium. These elements are highly valued for their “conductive and magnetic properties” (Chang 2022).