Why in News:
- The Union Budget 2026-27 announced support for establishing ‘Rare Earth Corridors’ in four mineral-rich states to build domestic capacity and reduce dependency on imports.
About the Corridors and Rare Earth Elements (REEs)
- Target States: The corridors will be established in Odisha, Kerala, Andhra Pradesh, and Tamil Nadu, known for their rich beach sand mineral deposits (monazite sands).
- Objective: To create a domestic ecosystem covering the entire value chain: mining, processing, research, and manufacturing of critical minerals.
- Why Needed (China Dominance): China controls the global supply chain, holding nearly 50% of reserves, over 60% of production, and 92% of global refining capacity. India currently imports over 45% of its rare earths from China.
- What are REEs?: A group of 17 metallic elements: the 15 lanthanides plus Scandium and Yttrium.
- Classification: Divided into Light Rare Earths (e.g., Lanthanum, Cerium) and Heavy Rare Earths (e.g., Terbium, Dysprosium).
- Exception: Promethium is usually excluded from commercial lists because it is radioactive and does not occur in mineable quantities.
- Applications: Critical for modern technology including Electric Vehicles (EVs), wind turbines, defense equipment (missiles), smartphones, and hard drives.

