Here is the contradiction most people miss: the same government that just ordered defense contractors to stop buying Chinese samarium can barely make any samarium itself.
In an office park in Exeter, New Hampshire, two technicians in heat-resistant hazmat suits and sealed face masks stand at a platform ringed with bright yellow railings, running mine waste through an apparatus of cylinders, tubes, and control panels.
They are zapping the material with electricity, stripping out oxygen, turning it into a grayish metal that goes into the permanent magnets inside fighter jets, radar systems, drones, and the Tomahawk cruise missiles the US is currently spending down in the Iran war.
This is Phoenix Tailings, and it is one of the few companies in America that can produce finished samarium metal at all.
Its capacity is about 200 kilograms a year. The defense sector needs 50 to 100 tons.
"A $150 million weapons system won't work if it's missing critical minerals that may be worth only $20,000 to $30,000," says co-founder Anthony Balladon. That asymmetry — the trivial input that disables the enormous system — is the whole story of the last two weeks in Washington.
A $150 million weapons system won't work if it's missing critical minerals that may be worth only $20,000 to $30,000. That asymmetry is the whole story.
Last week I wrote about the findings and the weaponization: China choking off processed rare earths, the US declaring dependence a national-security emergency. This week the policy stopped being rhetoric and became enforcement — a cluster of DPA, FCC, and UFLPA actions landing across July 30 and 31.
Read together, they are one machine. And the machine has a design flaw.
Start with the Defense Production Act. On July 30, Presidential Determination No. 2026-19 found that "recoverable critical minerals and materials are scarce and critical materials essential to the national defense," and directed the Commerce Secretary to act under Section 101.
Note what it targets: not new mines, but waste. Black mass from battery recycling. End-of-life rare-earth magnets. Swarf — the metal shavings from precision machining. Scrap streams containing critical minerals.
The move is to keep that secondary material onshore by controlling its export, so domestic refiners get first claim on it. It retains feedstock. It does not create any.
Next, the FCC. In late July it added Chinese-made advanced robots — humanoids, quadrupeds — plus connected power inverters and data-center gear to its Covered List, barring them from the US market effective immediately.
The regulator did not hedge, citing "unacceptable supply chain and cybersecurity vulnerabilities" and the risk that a hostile actor could remotely commandeer the machines. Among the most affected vendors is Unitree, which holds nearly a fifth of the global robotics market — the cheap, capable hardware that made automation viable for mid-sized firms.
Then the optical modules. The FCC is reportedly drafting a ban on Chinese-made optical modules and other data-center components — the high-speed interconnects where Chinese manufacturers supply more than half the world's supply, and which sit at the physical core of AI data centers.
And finally forced labor. On July 31, DHS added 43 entities to the UFLPA list — the largest single expansion ever, pushing the total to 187, a roughly 30% jump.
There is no de minimis exemption. Any traceable amount of input from a listed entity can trigger CBP to detain an entire shipment. The new entries span aluminum, titanium, gold, carbon — the raw materials that thread through everything downstream.
So here is the integrated logic. Export controls trap the scrap. Entity lists detain the imports. The robot and optical-module bans wall off the finished Chinese hardware. Four instruments, one function: destroy demand for Chinese-linked inputs across the entire AI-and-munitions stack.
The problem is that demand destruction is instant and supply creation is slow. And the timelines do not line up — they are off by years.
Look at the enforcement clock. The robot ban bit on publication. The UFLPA additions detain shipments now. The DPA controls retain scrap now.
Most brutally, there is a Pentagon-imposed deadline of January 1, 2027, after which contractors are expected to be off China-sourced tungsten — a metal where China controls roughly 80% of mine supply and an even larger share of processing. Patriot Critical Minerals' CEO Brodie Sutherland says ramping US production "will take years," and in the meantime contractors will have to live off existing inventory.
Now look at the production clock.
Phoenix Tailings: 200 kilograms today, scaling to about 5 tons in three months, but not reaching its 120-ton goal until next year or 2028. It needs up to eighteen months just to build the new factory.
Energy Fuels' White Mesa Mill in Utah: a $104 million expansion for heavy rare earths, with the dysprosium and terbium circuits targeted for completion at the end of 2027 and the samarium, europium, and gadolinium circuits not finished until the end of 2028.
Those circuits are sized around monazite from the Donald project in Australia, which — subject to a final investment decision — begins producing only in 2028.
So stack them. The tungsten cliff falls January 1, 2027. The samarium circuits commission in Q4 2028. The 120-ton domestic samarium target lands in 2027 or 2028. The AI buildout needs its optical modules and robots now.
The bans arrive years before the substitutes do. The near-term effect is not decoupling. It is a self-imposed shortage in exactly the inputs — samarium for missile magnets, tungsten for munitions, optical modules and robots for AI — the country says it most urgently needs.
Balladon says it plainly: "It will be a tall order and a challenge to replenish these stocks and scale up in the timeframe needed to meet defense demand and regulations."
Which is why the interesting question is not whether the shortage bites but which pressure valve Washington opens first.
There are three.
The first is already written into the FCC order: existing authorized robot models can keep running and receiving security updates until at least January 1, 2029. That grandfather clause is the government quietly conceding the gap — the ban bites on new hardware while the installed base keeps humming for three more years.
The second valve is allied backfill. Arnold Magnetic Technologies, which makes the samarium-cobalt magnets in Tomahawks, now sources from Solvay's restarted operation in La Rochelle, France — a relic of Europe's abandoned rare-earth industry brought back online. Energy Fuels' pending acquisitions would bolt on ASM's Korean Metals Plant, one of the few outside China making rare-earth metals and alloys, and Germany's VAC, with a new magnet plant in Sumter, South Carolina.
Arnold's CEO Matt Blake notes that paying Solvay's premium over China "has not been a deal-breaker," because the magnets are a small line item in a weapon. The trivial-input asymmetry cuts both ways: if $20,000 of samarium disables a $150 million system, then paying double for that samarium is a rounding error.
The third valve is the quietest: slow-walk enforcement. CBP has discretion over how aggressively it traces. The Pentagon can waive its own tungsten deadline. A drafted optical-module ban can stay a draft.
Watch which valve moves. If the 2029 robot clause gets extended, that is Washington admitting the domestic robotics industry cannot fill the hole. If ASM and VAC clear their reviews — and whether non-China processing validates at scale remains genuinely open — that is the allied bet paying off. If the tungsten deadline slips, that is enforcement bowing to inventory math.
For now, the machine is built and running. It is very good at destroying demand for Chinese inputs and, so far, incapable of manufacturing the replacements on the schedule its own deadlines demand.
Two technicians in Exeter are making 200 kilograms a year against a hundred-ton need. The policy has decided that number must go to zero from China immediately. The metallurgy has not been consulted.