Rare Earth Price Floors: What They Are and How They Work
A rare earth price floor is a minimum price, written into a contract, that a government or government-backed buyer guarantees a producer. If the market price falls below the floor, the buyer pays the difference. The best-known example is the $110 per kilogram NdPr floor agreed between the US Department of Defense and MP Materials in July 2025. Price floors protect the producers that hold them; they do not set a price for the whole market.
Rare Earth Price Floor Arrangements
| Arrangement | Floor price | Term and scope | Key features |
|---|---|---|---|
| MP Materials and the US Department of Defense (July 2025) | NdPr: $110/kg | 10 years, all NdPr products (concentrate, oxide, metal) | Government pays the quarterly shortfall below $110/kg; once the 10X magnet facility is at full capacity it takes 30% of the sales price above $110/kg |
| Lynas Rare Earths and JARE, for Japanese industry (March 2026) | NdPr: $110/kg | 12-year agreement to 2038; JARE firm commitment to buy 5,000 tonnes of NdPr a year | Above $150/kg Lynas shares 30% of the excess with JARE, capped at $10 million a year |
| Serra Verde (Brazil), now owned by USA Rare Earth (2026) | Terbium: $2,050/kg; dysprosium: $575/kg; neodymium: $110/kg; praseodymium: $110/kg | 15-year offtake of Phase 1 production by a government-backed special purpose vehicle | Serra Verde keeps 70% of revenue above the floors |
| Australia, Critical Minerals Strategic Reserve (2026) | No floor level published | Non-binding letter of support from Export Finance Australia for up to 500 tonnes a year of NdPr oxide from Arafura | Not a binding purchase or price commitment; Arafura says it is still in discussions with the government |
Sources: Lynas ASX announcement, 10 March 2026; MP Materials Form 8-K (July 2025); USA Rare Earth Form 8-K; Arafura ASX announcement, 21 May 2026. Terms can change; check the latest filings.
How a Price Floor Works
A price floor behaves like a contract for difference. At the end of each quarter, the contract compares the market benchmark price with the floor.
- Market price below the floor: the buyer pays the producer the difference for each kilogram covered. At $80/kg against a $110/kg floor, the payment would be $30/kg.
- Market price above the floor: the producer sells at the market price. Some contracts share the upside with the government: MP Materials' agreement gives the Department of Defense 30% of the sales price above $110/kg once the 10X magnet facility is at full capacity, and Serra Verde's arrangement lets it keep 70% of revenue above its floors.
- What the floor covers: only the volumes and products named in the contract, for a fixed term.
In practice this payment appears in the producer's accounts. MP Materials reported price protection agreement income of $42.3 million in the first quarter of 2026 and $17.6 million in the second quarter, $59.9 million for the half year, in its quarterly results.
Do Price Floors Raise Rare Earth Prices?
Not directly. A floor is a contract between one producer and one buyer. It does not change the benchmark price that China's producers and other buyers use. What a floor does is move the risk of a price fall from the producer to the government, which can make a project easier to finance and build. That matters because Chinese prices can fall below what a new non-China producer needs to cover its costs, and a price floor is designed to stop that from halting new supply. For scale, USGS puts the 2024 average for neodymium oxide at $56/kg, against a $110/kg floor. Benchmark has also reported ex-China NdPr oxide falling below $110/kg in 2026, so the floors are in use; see the NdPr oxide price page.
There are two indirect effects to watch. First, floors that are set well above market prices signal how much non-China supply costs, which supports the idea of a separate, higher-priced market outside China, described on the how pricing works page. Second, if floors encourage new supply, they can eventually add to global supply, which would be a pressure on prices rather than a support.
Which Rare Earth Stocks Benefit From Price Floors?
Only companies with a floor contract benefit directly: at the time of writing, MP Materials and Lynas for NdPr and USA Rare Earth through Serra Verde for heavy and light rare earths. Companies that only have a letter of support, such as Arafura, do not yet have a guaranteed price. Other listed producers may benefit indirectly if government support helps non-China supply chains to develop, but that is not guaranteed.
A floor lowers one risk but not the others. Before treating a floor as a reason to buy, check these points:
- Which volumes and products are covered, and for how long.
- Whether the contract is signed and in force, or only a letter of intent or support.
- Production and cost risk, which the floor does not cover.
- How much of revenue comes from the covered product, and how much from other elements and uncovered volumes.
Price Floors and Other Government Support
Price floors are one of several tools. Governments also use equity stakes, loans, offtake agreements and stockpiles. The industrial policy page compares these measures by country, and the strategic stockpiles page covers government purchasing.
Rare Earth Price Floors FAQ
What is a rare earth price floor?
A rare earth price floor is a minimum price, set in a contract, that a government or government-backed buyer guarantees a producer. If the market price falls below the floor, the buyer pays the difference. The best-known example is the $110 per kilogram NdPr floor the US Department of Defense agreed with MP Materials in July 2025.
How does a rare earth price floor work?
A rare earth price floor works like a contract for difference. Each quarter the market price is compared with the floor. In the MP Materials agreement, the Department of Defense pays MP Materials the shortfall between $110 per kilogram and the quarterly benchmark average price, for each kilogram of NdPr produced. If the market price is above the floor, the producer sells at the market price and, under some contracts, shares part of the upside.
Do price floors raise rare earth prices?
Price floors do not directly raise the market price. They are contracts with individual producers, not market-wide rules, so Chinese and other market prices are set as before. A floor protects the supported producer if prices fall. It can indirectly support supply by making new projects easier to finance, and a floor price that sits well above the market price shows how much more non-China supply may cost.
Which companies benefit from rare earth price floors?
Only companies with a floor price contract benefit directly. At the time of writing these include MP Materials (US Department of Defense, NdPr), Lynas (JARE, NdPr) and Serra Verde, owned by USA Rare Earth (heavy and light rare earths). Australia's Critical Minerals Strategic Reserve has issued a non-binding letter of support for Arafura but has not published a floor price. Other producers may benefit indirectly if floors help non-China supply chains develop.
Does a price floor make a rare earth stock a safe investment?
No. A floor reduces one risk, a fall in the NdPr price on the covered volumes, but not others such as production problems, cost overruns, share dilution or political change. The floor only covers the volumes and products named in the contract, and it lasts for a fixed term.
What is the current NdPr price compared with the $110 floor?
USGS annual averages for neodymium oxide were $56 per kilogram in 2024 and an estimated $73 per kilogram in 2025, both well below $110. USGS does not publish an NdPr series, and NdPr usually trades a little above neodymium oxide alone, but the gap to the floor is wide. Check live prices with a price reporting agency, as they move daily. The price charts page shows the USGS annual averages.