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MP MaterialsProfile date: 2026-08-31 MP Materials Corp.
Overview and Mission
MP Materials Corp. (NYSE: MP) is an American critical materials company focused on building a fully domestic, vertically integrated rare earth supply chain in the United States. Headquartered in Las Vegas, Nevada, the company owns and operates the Mountain Pass Rare Earth Mine and Processing Facility in San Bernardino County, California, as well as the "Independence" rare earth metal and magnet manufacturing facility in Fort Worth, Texas.
Mountain Pass is the only operating commercial-scale rare earth mining and processing site in North America. The company's core mission is to supply critical rare earth elements, refined oxides, metals, and permanent magnets essential for modern electrification, clean energy, industrial automation, defense systems, and consumer electronics.
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Operating Model: The "Mine-to-Magnet" Strategy
MP Materials organizes its operations to cover the complete value chain across three sequential stages:
Upstream Extraction (Mining and Beneficiation):
High-grade bastnäsite ore is mined via open-pit operations at Mountain Pass, California. The ore is crushed, milled, and passed through froth flotation circuits to produce a concentrated rare earth mineral slurry and dried rare earth concentrate. Midstream Chemical Refining and Separation:
The concentrated ore undergoes roasting, leaching, and multi-stage liquid-liquid solvent extraction. This separates the composite rare earth mixture into distinct, high-purity rare earth oxides and chemical salts. The primary economic focus is neodymium-praseodymium (NdPr) oxide, alongside heavier rare earth separations. Downstream Metallization and Magnet Manufacturing:
At the Independence facility in Fort Worth, Texas, refined NdPr oxide is converted through molten salt electrolysis into high-purity rare earth metals and engineered Neodymium-Iron-Boron (NdFeB) alloy flakes. These alloys are then processed via powder metallurgy, pressing, sintering, and Grain Boundary Diffusion (GBD) into finished permanent magnets.
Products and Materials Offered
1. Refined Rare Earth Oxides and Compounds
- Neodymium-Praseodymium (NdPr) Oxide: High-purity oxide ($Nd_2O_3$ / $Pr_6O_{11}$) used as the direct feedstock for permanent magnet manufacturing.
- Lanthanum Carbonate and Oxides: Used widely in petroleum fluid catalytic cracking (FCC) catalysts, optical glass, and energy storage applications.
- Cerium Carbonate and Oxides: Used in chemical mechanical planarization (CMP) polishing slurries for semiconductor manufacturing, glass polishing, and automotive catalytic converters.
- Heavy Rare Earth Separations (SEG / HREE Concentrates): Separated fractions containing samarium, europium, gadolinium, terbium, and dysprosium, critical for thermal stabilization in high-performance magnets.
- Rare Earth Fluoride and Concentrate: Intermediate mineral concentrates and chemical salts supplied for specialized chemical and industrial processing.
2. Rare Earth Metals and Engineered Alloys
- Pure Neodymium and Praseodymium Metals: Reduced via electrochemical cells for precision metallics.
- NdFeB Alloy Flake / Strip Cast Alloy: Custom strip-cast alloys engineered with tight chemical, phase, and microstructural tolerances for conversion into magnetic powder.
3. Sintered NdFeB Permanent Magnets
- Custom Sintered NdFeB Magnets: The strongest commercially available permanent magnets, tailored for high-temperature and high-efficiency environments.
- Grain Boundary Diffusion (GBD) Processed Magnets: Magnets treated with specialized heavy rare earth diffusion to maximize coercivity and thermal stability while minimizing overall heavy rare earth consumption.
- Precision Machined and Coated Magnetic Components: Magnets machined to micro-tolerances with protective nickel, zinc, epoxy, or passivated surface coatings.
Services and Technical Solutions
- Contract Magnet Manufacturing and Co-Development: Collaborative engineering services working alongside original equipment manufacturers (OEMs) to design, prototype, and manufacture custom permanent magnet geometries for electric drive units and industrial motors.
- New Product Introduction (NPI) & Prototyping: Dedicated piloting and testing facilities at the Fort Worth campus for testing new magnetic compositions, verifying thermal properties, and rapid prototyping.
- Closed-Loop Recycling and Scrap Reclamation: Internal and customer-facing programs to reclaim swarf, off-cuts, and end-of-life magnet scrap back into the refining and alloying stream.
- Supply Chain Provenance Verification: Providing full traceability, environmental compliance reporting, and domestic origin certification for defense and automotive procurement requirements.
Key Industries and End-Use Applications
- Electric Mobility & Transportation: Traction motors, steering systems, regenerative braking, and auxiliary pumps in battery electric vehicles (EVs) and hybrid platforms.
- Wind Energy & Renewable Infrastructure: Direct-drive and geared permanent magnet wind turbine generators.
- Robotics & Industrial Automation: High-torque servo motors, factory automation actuators, and precision sensors.
- Defense & Aerospace: Radar systems, missile guidance actuators, fighter aircraft electronic actuators, satellite communications, and naval propulsion.
- Consumer Electronics: Miniature acoustic transducers, haptic motors, optical image stabilization (OIS) units, and hard disk drive motors.
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