MP Materials: America's Rare Earth Monopoly at the Center of the China Decoupling Trade

MP Materials owns and operates the Mountain Pass mine in San Bernardino County, California — the only scaled rare earth mining and processing operation in the United States.

• → Mountain Pass produces ~11.5% of global rare earth supply — making it one of the world's most significant non-Chinese deposits
• → FY2024 production: ~45,000 metric tons REO (rare earth oxide) in concentrate — an all-time US record
• → Q3 2025 NdPr oxide production: 721 metric tons (record) — up 51% year-over-year, up 21% quarter-over-quarter
• → The deposit contains both light rare earths (Nd, Pr, La, Ce) and heavy rare earths (Dy, Tb) — critical for high-performance permanent magnets
• → No new US rare earth mine has come online in the past 20+ years. Permitting timelines for greenfield projects run 10-15 years minimum

• → Every F-35 fighter jet requires 920 lbs of rare earth materials. Every EV motor needs 2–5 kg of NdFeB magnets. Every wind turbine needs 600+ kg. There is no substitute.
• → Mountain Pass is the only US source that can supply these materials at scale without Chinese supply chain exposure.
• → Concentration risk: Single-mine dependency. Any disruption (environmental, geological, permitting) would eliminate the only US source.

MP is building what no Western company has done before: a fully integrated rare earth supply chain from ore in the ground to finished permanent magnets.

Our convergence engine flagged MP Materials with multiple independent data sources all pointing in the same direction. Government policy actions (DPA, EXIM, executive orders) count as a single source since they express one underlying thesis through different instruments. The government equity stake counts separately — owning shares is a genuinely different indicator than issuing directives.

Our proprietary supply chain graph maps nodes and edges across the critical minerals ecosystem. MP is identified as a severity-4 bottleneck — the dominant US rare earth producer with no near-term substitute.

MP sits at chain level 1 — the mining and separation layer. Our supply chain graph identifies MP as the only US node in this critical chain.

MP's mine is its core asset — a carbonatite deposit unusually rich in both light and heavy rare earth elements. Unlike most global deposits, Mountain Pass contains dysprosium (Dy) and terbium (Tb) — the heavy rare earths required for high-temperature magnet performance in EV motors and defense applications.

MP realized $59/kg for NdPr in Q3 2025. The DoD offtake guarantees $110/kg — an 86% premium to current market prices.

• → China cannot price-dump MP out of business on government-contracted output. The floor is contractual and government-backed.
• → The floor covers 100% of 10X Facility magnet output (7,000 MT/yr at the planned facility) for 10 years.
• → At full ramp, DoD-contracted magnet revenue (~$770M/yr) would represent roughly 50–60% of total projected revenue.
• → What the floor does not cover: Stage 1 concentrate sales (~45,000 MT/yr), Stage 2 separated NdPr oxide (~3,000+ MT/yr at scale), and the Independence facility (~1,000 MT/yr magnets) remain exposed to spot pricing. The remaining 40–50% of revenue faces commodity cycles and Chinese price competition.

• → China controls ~70% of global rare earth mining, ~90% of processing, and ~90% of permanent magnet production
• → April 2025: China imposed export controls on 7 heavy rare earth elements (Sm, Gd, Tb, Dy, Lu, Sc, Y). Export volumes fell sharply. US and EU automakers struggled to source permanent magnets.
• → October 2025: China expanded controls to 5 additional elements (Ho, Er, Tm, Eu, Yb). Invoked extraterritorial jurisdiction for the first time — requiring foreign entities to get Chinese licenses for third-country re-exports.
• → November 2025: China suspended the October controls for one year (until Nov 2026). The April controls on 7 heavy RE elements remain in effect.
• → MP's response: Stopped all concentrate sales to China in 2025, completing strategic pivot to domestic processing. China is no longer a customer — it's the threat.

The implication: even if bearish on MP's execution, the US government cannot afford to let this company fail. The DoD didn't take a 15% equity stake as a financial investment — they did it because there is no Plan B.

• → Integration depth: No competitor goes mine-to-magnet. Lynas mines and separates but doesn't make magnets. Energy Fuels separates but doesn't mine or make magnets.
• → Government backing: No competitor has DoD equity + offtake + price floor. Lynas has a DoD contract for its Texas facility but construction is stalled over wastewater permitting.
• → Time advantage: New mines take 10–15 years to permit. MP is already producing. Arafura is 3–4 years from first ore.

MP Materials trades at a premium to current fundamentals. On trailing revenue alone, the stock appears expensive — but the market is pricing in the transition from a commodity miner to a vertically integrated magnet manufacturer with government-guaranteed demand. Whether that premium is justified depends entirely on Stage 3 execution. There is significant upside potential as rare earth processing capacity scales, but the downside if magnets don't work at commercial yields is equally meaningful.