In July 2025 the United States Department of Defense (DoD) became the largest shareholder in MP Materials, the country’s only integrated rare earth producer. It did not simply buy shares: it guaranteed a price, promised a decade of demand, and financed a new factory. For a state long cast as the referee of markets rather than a player, this was a change of role – and a preview of how strategic capitalism will work.
From referee to anchor investor
The mechanics matter more than the headline. The DoD took a $400m position in convertible preferred stock – enough, on conversion, to make it the company’s largest shareholder with a stake of roughly 15% – and set a floor price of $110/kg on MP’s neodymium-praseodymium output for 10 years, nearly double the prevailing China-set market price. It also committed to buy the magnets from a second plant the company will build. Within days, Apple signed a $500m supply agreement and two major banks extended roughly $1bn in construction financing.
The sequencing is the lesson. Private capital did not move first with government trailing behind; the state’s balance sheet moved first, and private capital re-priced the venture around it. A federal price floor works, in effect, as a sovereign put option: it removes the sector’s defining risk – Beijing’s demonstrated ability to flood the market and crush Western producers’ margins, as it did in the early 2010s – and converts a volatile mining equity into something closer to a regulated utility with growth options attached. Mountain Pass, the California mine MP now operates, went bankrupt in 2015 for precisely that reason.
That is why the shares rallied and the lenders arrived: the state had changed the risk profile of an entire industry in a single term sheet. Nor is the deal a one-off. Months later, the Pentagon – rebranded the Department of War – helped launch a $1bn initiative with Phoenix Tailings to build out a separate slice of the domestic rare earth industrial base, and the administration’s critical minerals playbook treats such arrangements as replicable rather than exceptional. The precedent for a business reader is blunt: once a sector is designated strategic, the marginal price-setter may no longer be the market, and a second anchor deal within months confirms it is now doctrine. By July 2026, Washington’s corporate portfolio had expanded to an estimated 30 companies, suggesting that equity investment in critical-mineral producers is part of a broader—and increasingly routine—fusion of state power and private capital.
The oil playbook, rewritten for the periodic table
The instinct is a familiar one. After the 1973 embargo, the United States built the Strategic Petroleum Reserve, co-founded the International Energy Agency, and treated oil security as a core function of the state for the next half-century. Producer states never pretended otherwise but for Washington, playing rather than refereeing is the novelty.
Critical minerals are now being slotted into the same institutional grammar: stockpiles, price mechanisms, allied procurement. The DoD is expanding the National Defense Stockpile, Japan and the European Union run their own reserve and offtake schemes, and American diplomacy is busy internationalising its minerals industrial policy – not least in the intensifying competition with China for African supply.
Reading the new term sheet
For firms and investors, three implications follow. First, in strategic sectors the capital stack now has a senior partner of a new kind, and defence appropriations deserve the attention once reserved for earnings calls: a line item in the National Defense Authorization Act can move a valuation further than a quarterly report.
Second, political alignment has become a balance-sheet asset. Processors, recyclers, magnet-makers, and the analytics firms that map these flows gain an anchor customer with a printing press; companies outside allied supply chains face a rising cost of capital. For start-ups in processing, recycling, and materials analytics, a state anchor customer can substitute for years of venture risk.
Third, the risks run in both directions. Price floors socialise downside and invite over-capacity, much as Chinese solar subsidies did a decade ago, and capital allocated by security logic will not always clear at market returns. The state is a patient shareholder, but not always a disciplined one.
The MP Materials deal will be remembered less for its size than for its signature. The United States has not abandoned capitalism; it has repriced it, inserting the state between geology and the market wherever technology, defence, and trade converge. The businesses that prosper in the coming decade will be those that learn to negotiate with a counterparty that can also write the rules.
