MACEDON STRATEGIC INTELLIGENCE

Strategic Intelligence Brief

On January 1, 2027 a Pentagon supply-chain rule stops asking where a magnet was melted and starts asking where the ore was mined. China made 94 percent of the world's sintered permanent magnets in 2024. The rule bans the magnets. The waiver behind it is the actual policy.

01The announcement

The instrument is DFARS 252.225-7052. It is not proposed and not pending. It is a live contract clause, current as of the May 7, 2026 DFARS change, and it flows down to subcontractors at every tier. The statute beneath it is 10 U.S.C. 4872: section 844 of the FY2021 NDAA added the provenance prohibition, and section 854 of the FY2024 NDAA set the effective date six years after that act's January 1, 2021 enactment, which is January 1, 2027. The date was fixed in law years ago, not chosen this year.

Covered countries: China, Russia, Iran, North Korea. Covered materials: samarium-cobalt and neodymium-iron-boron magnets, tantalum, and tungsten. Through December 31, 2026 the restriction catches material "melted or produced" in a covered country, a test applied near the end of the chain that the defense base has largely learned to pass.

02The gap

The test changes from a stage to a lineage. Effective January 1, 2027 the clause bars any covered material "mined, refined, separated, melted, or produced" in a covered country. Three verbs are new, and refined is the one that binds: it tests the single step China dominates most completely.

The IEA's 2026 rare-earths assessment puts China at 60 percent of global mined production of magnet rare earths in 2024, 91 percent of refined output, and 94 percent of sintered permanent magnet production. These are scoped to magnet rare earths, the steps that turn ore into a magnet, not the all-rare-earths mining share quoted in most coverage. The clause tests those steps. On tungsten, USGS puts Chinese mine production at about 82 percent of the world total in 2024.

The domestic answer arrives late and is not close to enough. The magnet campus most often pointed to, at Northlake, Texas, only begins commissioning in 2028, and commissioning is not delivery. The IEA finds capacity outside China meets well below 20 percent of projected ex-China magnet demand in 2035, and closing the gap would take a sixfold expansion of magnet manufacturing on top of everything planned. And this is not a market inference: in the rulemaking file, industry told DoD the requirement was "a nearly inexecutable burden," and DoD answered, twice, that the statute authorizes a nonavailability determination until a compliant supplier becomes available. The waiver is the policy, and DoD said so itself.

03The window

The date is fixed by statute at January 1, 2027, and the gap does not close before it, or soon after. Inside that window one of three things happens, and they price very differently.

• The rule holds. DoD enforces provenance and issues waivers sparingly; compliant material commands a hard premium because supply is genuinely short, and non-Chinese separation capacity becomes the scarcest asset in the defense supply chain.
• The waiver becomes routine. Heads of contracting activity grant nonavailability determinations broadly, because the alternative is that the Pentagon cannot buy munitions. The premium never materializes. But the statutory waiver runs no more than 36 months, so routine means a renewal cycle, not permanence.
• The date moves. It has moved once already. Section 854 of the FY2024 NDAA pushed the restriction back a full year. The deferral came from Congress, not DoD, which says it "cannot implement any other effective dates." Watch the NDAA, not the Pentagon.

04The exposure map

The exposure runs deeper than the primes. The clause flows down to subcontracts at any tier, including commercial products: a machine shop selling tungsten-carbide tooling is, in principle, responsible for knowing which mine its ore came from. The COTS shield narrows too, from a tungsten-only test to a combined covered-material test on January 1, 2027.

The binding constraint for a prime is not sourcing compliant material. It is proving it, back to the mine, across a chain it does not control, on a record that must survive a False Claims Act theory. Traceability and chain-of-custody become load-bearing rather than administrative. And the pattern is familiar: the same doctrine this publication has traced through rare earths and lithium, arriving now in law rather than markets. Owning the resource is not controlling the midstream, and Washington has written a rule that regulates the midstream it does not own.

05The signals to watch

• Class nonavailability determinations, which by regulation get at least 30 days' advance notice in the Governmentwide Point of Entry at SAM.gov. A class determination is the clearest admission the rule cannot be met as written.
• Individual determinations, quieter, but each reported to USD(A&S) DASD (Industrial Policy), including the ones denied. Volume and denial rate separate the three worlds above.
• The 36-month clock on every waiver granted: the first 2027 cohort comes up for renewal in 2029 and 2030, a harder test than the initial grant.
• National security waivers under 10 U.S.C. 4872(e), reported to the congressional defense committees. Reaching for these is a louder statement than any waiver count.
• Any legislative move to defer the January 1, 2027 test. A rider is the vehicle, and the precedent already exists.
• The first contract termination or False Claims Act action premised on provenance, which would reprice the whole compliance question overnight.
• Non-Chinese refining and magnet capacity measured in tonnes, not press releases about mines. The IEA is explicit that magnet production and metallisation, not extraction, are the bottleneck.

06Sources

Every figure and quotation in the full assessment was read in the primary document.

1. DFARS 252.225-7052, "Restriction on the Acquisition of Certain Magnets, Tantalum, and Tungsten," current as of DFARS Change 05/07/2026.
2. DFARS 225.7018-4, Nonavailability determination (individual and class authorities, SAM.gov notice, reporting).
3. Federal Register, final rule, "Restriction on Certain Metal Products (DFARS Case 2021-D015)," May 30, 2024. The rulemaking record and DoD's responses.
4. 10 U.S.C. 4872, provenance prohibition, 36-month cap at (c)(1)(B), national security waiver at (e).
5. IEA (2026), Rare Earth Elements: Pathways to secure and diversified supply chains. The 60 / 91 / 94 percent figures, scoped to magnet rare earths.
6. USGS, Mineral Commodity Summaries 2026, Tungsten.
7. MP Materials, Northlake, Texas magnet campus announcement (commissioning in 2028); Almonty, Sangdong Phase 1 completion; Crowell & Moring client alert on the final rule.