When the Pentagon put a ten-year price floor under neodymium-praseodymium, it did more than back one miner. It gave rare-earth royalties something they had never had: a floor to underwrite against.
On July 10, 2025, the U.S. Department of Defense did something no buyer of rare earths had done before: it told a miner what the product would be worth for the next ten years. The agreement with MP Materials put a floor of $110 per kilogram under neodymium-praseodymium oxide, the material that gives high-strength magnets their power, and promised that if the market fell below that price, the Pentagon would pay the difference. It was, in effect, a decade of price certainty — the one thing the rare-earth market had never offered anyone.
The rest of the package was built to match. The Defense Department took $400 million in convertible preferred stock, enough for roughly a 15% stake once converted, and lent $150 million for heavy rare-earth separation. JPMorgan and Goldman Sachs committed $1 billion in construction financing. And the Pentagon agreed to buy the entire output of MP's planned "10X" magnet plant for ten years — a facility sized, in the Colorado School of Mines' Payne Institute summary, at 7,000 metric tons of magnets a year. It was the largest single intervention in the history of the Western rare-earth industry, and it arrived in one document.
Price floors matter to financiers for a reason that has little to do with price. A royalty is a promise of a percentage of future revenue; its value is the value of the revenue it can be counted on to produce. Until July 2025, the only honest answer to "what will NdPr be worth in 2030?" was a shrug. MP Materials' own realized price for NdPr in the third quarter of 2026 was about $100 per kilogram — below the floor, which is exactly the point. The floor is not a forecast. It is a backstop, and a backstop is what lets a royalty buyer price a stream of future payments with something approaching confidence.
The numbers from MP's third quarter of 2026, reported November 5, show why the floor found a receptive audience. Revenue reached $147.7 million, up 176% year over year, on NdPr production of 1,018 metric tons — up 41%. NdPr sales volume rose 94% to 1,020 metric tons, and the materials segment's revenue jumped 322% to $133.5 million. There was also a $31.6 million sale of heavy rare-earth concentrate to a U.S. aerospace and defense customer — the first of its kind, and a sign that the heavy side of the business, long the hardest part of the chain to move out of China, is beginning to clear.
And the floor is not a one-off. In March 2026, Lynas Rare Earths updated its long-term agreement with Japan Australia Rare Earths — the consortium of JOGMEC and Sojitz that has bought its output since 2011 — into a twelve-year arrangement with firm offtake of 5,000 tonnes a year of NdPr at a $110-per-kilogram floor price. Two of the only two large Western producers now have the same number written into their offtakes. When two independent deals converge on the same price, that price starts to look less like a subsidy and more like a benchmark.
Here is the arithmetic that matters for anyone buying a name like RareEarthRoyalties.com. A net smelter return royalty typically pays 1% to 5% of the value of what comes out of the ground. At $110 a kilogram, a 2% royalty on a mine producing 2,000 tonnes of NdPr a year is worth about $4.4 million a year — every year, for the life of the mine, with no operating costs. Drop the price to $60 a kilogram and the same royalty pays $2.4 million. The royalty's value is the price, times the percentage, times the tonnage. A floor fixes the first of those three variables for a decade.
That is why the floor changes the conversation around financing new rare-earth supply. The International Energy Agency expects total rare-earth demand to grow from 91 kilotonnes in 2024 to 123 kilotonnes by 2030, with clean-energy demand roughly doubling from 19 to 38 kilotonnes. The demand is not the problem. The problem has always been that a mine takes years to build and its product's price can halve in a quarter. A ten-year floor compresses that risk into something a lender can model. MP's own guidance points the same way: the company expects its NdPr production run rate to exceed 5,000 tonnes a year across 2027, more than double its 2025 record of 2,599 tonnes.
The downstream demand is already contracted, not speculative. Apple signed a $500 million long-term agreement with MP Materials in July 2025 for magnets made in the United States from 100% recycled rare earths, with a $200 million prepayment, shipments beginning in 2027. General Motors, MP's foundational automotive customer since a binding agreement in December 2021, has prepaid $150 million for magnet supply and completed qualification for its vehicles; saleable deliveries were expected in the fourth quarter of 2026. A royalty on a producer with customers like these is a royalty on a signed order book.
A floor is a political instrument, and political instruments can be withdrawn. The $110 guarantee is a contract with the U.S. government, and it rests on the same national-security logic that produced the export controls it is meant to answer — logic that could change with an administration. Nor does a floor protect a royalty holder from the other two variables: a mine that produces less than expected, or a royalty that was bought on an overpromised resource. MP's own third quarter showed the limits of a rising tide: its magnetics segment revenue fell 15% year over year to $18.6 million, and total rare-earth oxide production dipped 3% to 12,887 metric tons even as NdPr output surged. Not everything moves in the same direction.
There is also the question of what a floor does to the market it protects. If $110 becomes the price, producers may anchor on it, and the premium that made rare earths attractive in the first place can narrow. And the floor applies to NdPr oxide — not to dysprosium or terbium, the heavy rare earths where the real scarcity sits and where prices run into four figures per kilogram. A royalty written on the light rare earths has a floor; a royalty written on the heavies still has the market.
Even so, the direction is clear. The two largest Western producers now operate under a $110 floor. The world's biggest buyer of magnets and the world's largest automaker have prepaid for American supply. And the demand curve — 20.7 million electric cars sold in 2025, about a quarter of all cars, and an IEA forecast of roughly 23 million in 2026 — keeps pointing at the same handful of elements. The floor did not create the rare-earth royalty business. It made it underwritable. That is the difference between a speculation and an asset class — and it is the opening a name like RareEarthRoyalties.com is built to claim.
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