U.S. Mineral Production Capacity Falls Far Short, Uncertainty Looms Over 2027 Deadline to Ban Chinese Mineral Purchases
Miles Bennett
The U.S. plans to cut its dependence on Chinese critical minerals by January 2027, but domestic rare-earth supply covers less than 1% of demand — a gap so wide that the fate of waiver policies will determine whether the defense supply chain can transition at all.
How large is the gap?
U.S. rare-earth magnet demand in 2025 is roughly 48,000 metric tons. Domestic supply: 300 tons — a coverage rate below 0.6%.
Capacity is expected to reach 5,000 tons by year-end, still only about one-tenth of demand.
This means → even after a more-than-tenfold ramp, the U.S. self-sufficiency rate stays below 11%, with nearly nine-tenths still imported.
Tungsten and tantalum — why start from almost zero?
U.S. firms stopped producing tungsten in 2015. Domestic tantalum production halted in 1959 — both materials are effectively a blank slate.
The earliest new mines won't produce until 2028: Guardian Metal Resources plans a tungsten mine; Lion Rock Resources is developing a tantalum site in South Dakota — neither has a firm timeline.
In plain terms = the ban takes effect in roughly five months, but bringing a mine from exploration to shipment typically takes years — the math doesn't work.
Trump is tightening waivers — what does industry say?
On May 10 Trump posted that "all federal agencies must buy American — no excuses," then signed an executive order raising the bar for defense contractors to obtain waivers.
Companies must now prove they have "exhausted all efforts" to avoid Chinese materials and submit a timeline for decoupling.
Yet 16 executives, investors, analysts, and policymakers interviewed by Reuters agree: U.S. mineral firms are nowhere near meeting domestic demand.
Even a Pentagon-backed startup can't make the deadline — what does that tell us?
Ucore Rare Metals, a refining startup supported by the U.S. Department of Defense, originally planned to begin refining in 2025. Shifting Pentagon requirements pushed the earliest partial production to 2027.
CEO Pat Ryan was blunt: "Can the entire supply chain be built by 2027? Honestly, it's an uphill battle."
This reflects a hard physical reality: even with direct government backing, the construction cycle for mineral infrastructure cannot be compressed by a policy calendar.
What if China moves first to restrict exports?
The International Energy Agency warned this month that Chinese rare-earth export restrictions could put $6.5 trillion of global manufacturing at risk.
China currently controls over 80% of the world's mineral refining capacity.
This means → the U.S. doesn't just face its own capacity shortfall — if China proactively tightens exports, even the "buy while you build" transition path could be cut off. The direction of waiver policy will directly determine whether the defense supply chain lands safely or hits a wall.
Content is for reference only, not financial advice.