The Rare Earth Elements market is fundamentally divided into two primary type categories: Light Rare Earth Elements (LREE) and Heavy Rare Earth Elements (HREE). LREEs—comprising lanthanum, cerium, praseodymium, neodymium, and samarium—account for roughly 70 % of total production volume, driven by their extensive use in permanent magnets, catalytic converters, and glass polishing. Their lower extraction cost and broader geographic availability reinforce this dominance. HREEs—gadolinium, terbium, dysprosium, holmium, erbium, thulium, and ytterbium—represent the remaining 30 % but command a higher average price because of their critical role in high‑performance magnets, laser technology, and nuclear control rods. The price premium of HREEs amplifies their contribution to overall market value despite lower volumes. Together, these type segments shape supply‑chain dynamics, pricing structures, and investment focus, forming the backbone of the Rare Earth Elements segmentation analysis.