Trump landed in Beijing yesterday for a two-day summit with Xi Jinping — and the agenda’s most market-relevant line item isn’t on most traders’ radar yet.
Polymarket pegs a Boeing aircraft purchase announcement at 88% by May 22. US soybean buys: 77%. Those are the obvious wins. But the asymmetric trade is sitting one paragraph deeper in the joint communiqué — and it’s about rare earths.
MP Materials (MP) holds the only large-scale rare earth operation in the Western Hemisphere. The Mountain Pass mine in California produces the neodymium, praseodymium, dysprosium, and terbium that go into the permanent magnets inside electric vehicles, F-35 jet engines, MRI machines, and most modern AI hyperscaler hardware.
Last year, the Department of Defense did something unusual. It locked in a 10-year offtake agreement with MP Materials at a $110/kilogram price floor on NdPr oxide. If Chinese pricing tries to undercut Mountain Pass production below that floor, the Treasury fills the gap. The DoD also took a 15% equity stake and funded $400 million in preferred stock toward the company’s “10X Facility” — a second domestic magnet manufacturing plant.
Translation: the US government has structurally underwritten MP’s downside.
The stock closed Wednesday at $63.73, off 2.8% on profit-taking ahead of the summit.
Here’s the geopolitical math. China’s existing rare earth export controls on the US are paused until November 10, 2026 — a six-month truce negotiated in February. The summit in Beijing today and tomorrow is where that timeline either gets extended (bullish-ish for global supply chains, neutral-to-slightly-negative for MP because the squeeze relaxes) or gets ripped up (Trump or Xi walks away angry, restrictions snap back, and Mountain Pass becomes the only Western source of magnet-grade rare earths with locked-in floor pricing).
The asymmetry is structural.
If Trump-Xi extends the rare earth export truce, MP doesn’t move much — that outcome is already in the price. If the summit produces a fresh Chinese export squeeze (retaliation for any new tariff escalation, or a walk-out over Taiwan or AI cooperation), MP becomes the only Western magnet-and-NdPr supplier with locked-in floor pricing and DoD backing. The federal critical-minerals reserve push is the funding wall behind it.
That’s a binary geopolitical hedge with a defined downside ($110/kg floor) and uncapped upside.
The Trump administration has also moved to build a critical-minerals strategic reserve covering rare earths, and MP is the central beneficiary of that posture — both as a price-floor counterparty and as the planned domestic magnet supplier.
The Play: This isn’t a trade that predicts peace. It’s a trade that gets paid for chaos. Headline risk runs in two directions through Friday’s summit close — into the press conference, the language on critical minerals is the line that matters. Anything that signals a Chinese export pause or a tariff escalation breaks MP higher. Anything that signals a truce extension leaves the stock flat to slightly down. Defined downside, asymmetric upside. The DoD price floor is the seatbelt.