The U.S. rare-earth magnet buildout.
Much of the disclosed plant capacity remains a future project. Qualification, product mix, inputs, and yield determine how much becomes usable supply.
Sulayman Bowles · · Updated
Can announced U.S. rare-earth magnet capacity replace imports?
Only compare qualified output that can serve the relevant products with a demand denominator measured on the same basis. The August 2026 audit separates commercial shipments, ramping lines, construction, and future announcements rather than adding them all as available supply. Magnet grade, geometry, coating, qualification, and upstream material constraints affect what customers can actually buy. Nameplate tonnes alone therefore cannot establish import replacement, particularly when announcements describe different stages or products.
Evidence: Original capacity and maturity model · Original definitions and methodology · USGS rare-earth statistics
Source access notes and reading alternatives · Checked Oct 6, 2026
Read this alongside What constrains physical capacity?.
The August audit counts 37,750 stated units (37,584–38,048 normalized metric tonnes) of disclosed U.S. sintered neodymium-iron-boron magnet nameplate. Only 4,000 stated units belong to plants with both disclosed capacity and commercial shipments. Another 3,600 are in commissioning, ramp, or customer qualification; 30,150 depend on construction, later phases, or announced production targets. The headline describes a project pipeline, not the volume customers can buy.
Customers qualify specific grades, coatings, geometries, tolerances, traceability systems, and process windows. A traction-motor magnet cannot automatically replace a defense actuator magnet or a bonded magnet. Coercivity, temperature performance, heavy-rare-earth content, diffusion processes, corrosion protection, and machining losses all affect usable output from the same nominal tonne.
The Commerce Department’s roughly 37,000-tonne demand frame includes magnets embedded in imported finished goods. Domestic plants first compete for motor, component, and system orders placed into the U.S. supply chain. Accessing embedded-import demand may require those production chains to move or requalify; it cannot be assumed from a capacity announcement.
- Firm-project nameplate
- 37,750 stated units
- Commercial-shipment class
- 4,000 stated units
- Ramp / qualification class
- 3,600 stated units
- Future-project class
- 30,150 stated units
Scope and assumptions
This investigation uses public project disclosures, government awards, company releases, filings, and technical references available through August 17, 2026. Capacity statements are not standardized: some refer to metric tonnes, some to tons, some to a facility phase, and some to a future platform. The 37,750 stated-unit headline is a stated-unit sum of firm projects in the audit; normalization produces a 37,584–38,048-tonne range. Operating status is classified from disclosed shipments, commissioning, qualification, construction, and target dates. The 2028 scenarios and material-flow ranges are derived illustrations, not company guidance, engineering guarantees, market forecasts, or investment recommendations.
The 37,750 stated-unit total counts projects
A project enters the audit when a company or government source identifies a U.S. manufacturing site or funded line and discloses capacity. Exploration-stage concepts, oxide projects without magnet conversion, and generic corporate targets are excluded.
The resulting total is 37,750 stated units as reported in project disclosures. Because public announcements do not always distinguish metric tonnes from U.S. short tons, the same ledger normalizes ambiguous rows both ways. That produces a range of 37,584 to 38,048 metric tonnes. The spread is small relative to the strategic claim, but preserving it prevents false precision.
At the cutoff, Noveon and eVAC account for the 4,000 stated-unit commercial-shipment class. MP Materials’ disclosed 3,000-tonne line and the first 600 tonnes of USA Rare Earth’s staged buildout fall into commissioning, ramp, or qualification. JS Link America, HyProMag USA, Vulcan Elements, the rest of USA Rare Earth’s project, and other disclosed firm lines remain future capacity until operating evidence supports reclassification.
| Maturity class | Capacity | What the class requires | What it does not prove |
|---|---|---|---|
| Commercial shipments | 4,000 stated units | Disclosed nameplate plus evidence of commercial shipments | Full utilization, broad qualification, domestic inputs, or positive margins |
| Commissioning / ramp / qualification | 3,600 stated units | Installed or starting equipment with disclosed commissioning, first output, or customer qualification | Steady-state yield, recurring orders, or interchangeable product coverage |
| Future firm projects | 30,150 stated units | Named U.S. project or funded line with disclosed capacity | Completed construction, on-time startup, financing sufficiency, or customer acceptance |
| Firm-project total | 37,750 stated units | Arithmetic sum of the three maturity classes | Current domestic production |
A stacked bar divides 37,750 stated units of disclosed firm-project capacity into 4,000 with commercial shipments, 3,600 in commissioning, ramp, or qualification, and 30,150 in future projects. Mixed source units normalize to 37,584–38,048 metric tonnes.
FIGURE 01 / PHYSICAL-CAPACITY AUDIT
37,750 stated units is not current supply
Mixed source units; normalized total: 37,584–38,048 metric tonnes
- SHIPPINGCommercial shipments
- 4,000
Disclosed nameplate plus public shipment evidence. Not full utilization.
- RAMP / QUAL.Commissioning / qualification
- 3,600
Installed or starting lines without broad recurring shipment evidence.
- FUTURE FIRM PROJECTSFuture projects
- 30,150
Construction, funded expansions, and later phases.
80% of the project stack
Evidence cutoff: 2026-08-17 · Capacity ≠ qualified output · Source: project ledger and cited primary disclosures
Five gates turn installed equipment into saleable supply
Physical completion is the first gate. Furnaces, strip casters, powder systems, presses, sintering, heat treatment, machining, coating, metrology, and environmental controls must operate as one line. A ribbon cutting does not establish its bottleneck rate or scrap level.
The second gate is repeatable yield. Oxidation, powder handling, pressing, sintering shrinkage, cracking, machining, coating defects, and rejected magnetic properties consume feedstock without producing saleable magnets. First output can coexist with uneconomic losses.
The third gate is product qualification. Customers approve a specific combination of grade, geometry, coating, magnetic orientation, temperature behavior, dimensional tolerance, process control, and traceability. Qualification can take quarters or years when the magnet sits inside a safety-critical motor, defense platform, medical device, or long-lived industrial system.
The fourth gate is commercial depth. One launch customer can absorb early output while leaving the plant exposed to one program, specification, and pricing negotiation. Multiple qualified product families and recurring orders make that capacity less dependent on a single buyer.
The fifth gate is input security. Domestic pressing and sintering do not create a domestic supply chain if NdPr metal, alloy strip, dysprosium, terbium, or specialized processing services remain tied to one foreign system. The relevant unit is a qualified magnet with an auditable input chain, not a tonne passing through a U.S. building.
| Gate | Strong evidence | Weak substitute |
|---|---|---|
| Physical completion | Integrated line commissioned; equipment and site identified | Groundbreaking or building shell |
| Repeatable yield | Sustained saleable output, scrap data, or recurring production cadence | First furnace run or sample batch |
| Qualification | Customer-approved grade, geometry, coating, and process window | Laboratory magnetic-property result |
| Commercial depth | Recurring shipments to more than one program or product family | Non-binding memorandum or total addressable market |
| Input security | Origin and conversion path for oxide, metal, alloy, heavy rare earths, and recycled feed | Final assembly in the United States |
The 37,000-tonne demand figure includes embedded imports
A recurring claim compares the 37,584–38,048 normalized metric-tonne range of announced U.S. capacity with a Commerce estimate near 37,000 tonnes of U.S. demand and concludes that the domestic shortfall is nearly solved. The numerator and denominator do not describe the same market boundary.
The Commerce frame counts permanent magnets that reach the U.S. economy both directly and embedded inside imported finished goods. The embedded portion can sit inside a motor, vehicle, electronics assembly, appliance, industrial machine, or other product manufactured abroad. A new U.S. magnet plant cannot automatically sell into that volume. Capturing it may require relocating motor production, redesigning a component, changing a tier-one supplier, requalifying the entire system, or altering trade flows.
Direct domestic magnet purchases define the nearer-term contestable demand. Embedded imports measure wider supply-chain exposure and a possible reshoring opportunity. Both are relevant, but neither is interchangeable with the other when testing plant utilization.
| Denominator | What it includes | Use in a capacity model |
|---|---|---|
| Direct magnet demand | Magnets purchased by domestic motor, component, and system manufacturers | Near-term addressable orders and utilization |
| Embedded-import magnet content | Magnets inside imported finished goods and subassemblies | Strategic exposure and possible long-run reshoring |
| Replacement / aftermarket demand | Maintenance, repair, spares, and remanufacturing | Often fragmented; grade and geometry specific |
| Export demand | Qualified foreign customers served from U.S. plants | Potential utilization, subject to cost, logistics, and trade rules |
The diagram separates direct domestic magnet purchases, magnets embedded in imported finished goods, replacement demand, and export demand. Only direct domestic purchases are the near-term order book immediately contestable by a new U.S. magnet factory.
FIGURE 02 / DEMAND BOUNDARY
“U.S. demand” is not one addressable market
Strategic exposure is broader than the orders immediately available to a domestic magnet plant
NEAR-TERM CONTESTABLE
Direct domestic magnet demand
Magnets purchased by U.S. motor, component, and system manufacturers.
not automatic
STRATEGIC EXPOSURE / LONG-RUN RESHORING
Magnets embedded in imported finished goods
Capturing this volume may require relocating motor production, redesigning components, or requalifying a complete system.
Replacement / aftermarket demand
Fragmented, geometry-specific, and often tied to installed equipment.
Export demand
Potential utilization subject to qualification, cost, logistics, and trade rules.
Do not divide announced domestic nameplate by an embedded-import denominator and call the supply gap closed.
Finished output needs 46,400 to 70,459 tonnes of modeled process flow
The 37,750 stated-unit headline measures finished magnet nameplate. It should not be compared directly with every upstream tonnage disclosure. Oxide, metal, alloy, strip, powder, pressed compacts, sintered blocks, machined pieces, and finished coated magnets are different mass points in the process.
The model applies explicit ranges for alloy chemistry, conversion loss, process yield, machining loss, internal scrap recovery, and recycled-feed displacement. Under the central project stack, those assumptions imply 46,400 to 70,459 tonnes of gross process flow across the chain. That is not additional magnet demand and should not be added to the 37,750 stated-unit capacity figure. It is the upstream throughput needed to support the finished output under different yield and recycling cases.
Finished-magnet nameplate does not establish secured NdPr metal, heavy-rare-earth additives, alloy conversion, or recycling. Upstream metal and alloy tonnage cannot be counted as finished magnets either. Preserve chemical form, product stage, original unit, and yield boundary when comparing disclosures.
| Measure | Modeled range | Interpretation |
|---|---|---|
| Finished magnet nameplate | 37,584–38,048 t | Normalized range around the 37,750 stated-unit project sum |
| Gross process flow | 46,400–70,459 t | Cumulative material handled before saleable finished output under modeled yields and recycle loops |
| Commercial-shipment class | 4,000 stated units | Nameplate attached to plants with disclosed commercial shipments |
| Qualified output | Not publicly disclosed as a complete national total | Must be measured by customer-approved products and sustained shipments |
A process diagram traces oxide and metal through alloy strip, powder, pressing, sintering, machining, coating, internal recycling, and 37,584 to 38,048 tonnes of normalized finished magnet nameplate. Gross process flow is modeled at 46,400 to 70,459 tonnes.
FIGURE 03 / MATERIAL BALANCE
Gross flow is not a second capacity total
Every disclosure must preserve its chemical form, process stage, unit, and yield boundary
Oxide / metal
NdPr + additives
origin and purity matter
Alloy / strip
chemistry + casting
oxygen control
Powder / press
milling + orientation
handling loss
Sinter / machine
shrinkage + cracking
geometry loss
Finished magnets
37.6–38.0 ktnormalized nameplate
Modeled gross process flow: 46.4–70.5 kt
throughput requirement across stages · not additive to finished capacity
Grade and geometry determine which orders a plant can fill
NdFeB capacity is commonly reported as one mass number, but customer utility depends on product form. A plant optimized for large block magnets may not efficiently serve thin arc segments, micro-magnets, high-speed rotor sleeves, grain-boundary-diffused grades, or complex assemblies. Machining intensity and coating surface area can change throughput even when finished mass is unchanged.
Magnetic grade also changes the input set. High-temperature and high-coercivity applications may require dysprosium or terbium, or a process that concentrates those elements at grain boundaries. These heavy rare earths are far smaller in tonnage than NdPr but can be the binding constraint. A national capacity total that ignores grade coverage can show surplus while a specific motor program still has no qualified domestic source.
Some buyers need coated magnets; others need magnetized segments, rotor subassemblies, or complete circuits. Moving downstream can add value, but also requires tooling, automation, quality systems, intellectual property, and customer-specific capital.
- Report sintered and bonded magnets separately.
- Report finished magnet, machined segment, and assembled rotor capacity separately.
- Identify grade families and operating-temperature ranges rather than one NdFeB label.
- Track heavy-rare-earth dependence and grain-boundary-diffusion capability.
- Separate sample qualification from serial-production approval.
Expansion can move the bottleneck upstream
The U.S. buildout spans mining, separation, oxide production, metal and alloy conversion, magnet manufacturing, machining, coating, and recycling. Progress at one stage can expose a shortage at another. More sintering capacity increases the requirement for consistent alloy strip and powder; more alloy capacity increases the need for separated oxides and metal-making; more defense demand can tighten heavy-rare-earth additives even when NdPr is available.
Feedstock origin also affects qualification and policy eligibility. A customer may require material traceability, exclusion of specified foreign entities, recycled content, or compliance with procurement rules. A plant that can technically run imported alloy may still need a separate domestic route for a defense or subsidized automotive program.
Recycling contributes usable inputs only after collection, recovery, purification, and product qualification. Factory scrap is usually easier to recover because its composition is known. End-of-life magnets are dispersed across devices and may be coated, bonded, corroded, or costly to disassemble.
| Stage | Failure mode | Observable evidence |
|---|---|---|
| Separation | Insufficient NdPr purity or missing heavy-rare-earth products | Qualified oxide specifications and recurring deliveries |
| Metal / alloy | Scale, consistency, or oxygen-control problems | Lot consistency, strip-cast output, customer acceptance |
| Powder / sintering | Low yield, oxidation, cracking, or unstable magnetic properties | Saleable yield and process-capability data |
| Machining / coating | Geometry bottlenecks, corrosion failures, or high scrap | Dimensional yield and coating qualification |
| Assembly | Customer-specific tooling or rotor integration delays | Production-part approval and serial shipments |
| Recycling | Collection and purification cost exceeds recovered value | Closed-loop contracts and qualified recycled feed |
The 2028 model spans 8,000 to 28,000 stated units against 37,750 nameplate
The model applies utilization factors to the maturity buckets rather than forecasting individual companies. Commercial-shipment capacity receives the highest factor; ramp and qualification receive a lower factor; future projects receive the widest range. The exercise tests dependence on execution.
The conservative case applies 85% to the commercial-shipment class, 45% to ramp and qualification, and 10% to future projects. It produces roughly 8,000 stated units of illustrative saleable output. The base illustration applies 90%, 70%, and 35%, producing about 16,700 stated units. The high-execution case applies 95%, 90%, and 70%, producing about 28,100 stated units.
These calculations retain the mixed-unit basis of the capacity inputs; they are not precise metric-tonne totals, demand forecasts, or company guidance. They show why a physical-capacity model needs probability, schedule, yield, qualification, and utilization layers. Even the high case leaves a gap between nameplate and output because new plants rarely reach full, product-mix-adjusted utilization immediately.
| Case | Commercial shipments | Ramp / qualification | Future projects | Illustrative output |
|---|---|---|---|---|
| Conservative | 85% | 45% | 10% | ~8,000 stated units |
| Base illustration | 90% | 70% | 35% | ~16,700 stated units |
| High execution | 95% | 90% | 70% | ~28,100 stated units |
| Headline nameplate | 100% | 100% | 100% | 37,750 stated units |
Funding construction does not secure paying customers
Government awards, offtakes, loans, tax incentives, procurement rules, and price-support mechanisms can make a plant financeable before the private market would. They do not remove the need for competitive conversion cost, qualified inputs, customer acceptance, or recurring orders. The key policy question is whether support buys temporary learning and scale or permanently subsidizes idle and mismatched capacity.
A domestic plant faces a difficult ramp profile. Fixed cost arrives before utilization. Qualification limits the number of saleable products. Early scrap is high. Customers may demand price parity with established Asian suppliers while also requiring domestic traceability and redundancy. Long-term offtake can bridge the ramp, but take-or-pay terms, floor prices, indexation, and customer concentration determine who carries the downside.
A credible input route, experienced operators, anchored orders, product-specific qualification, and funding for a slow ramp support a stronger project. A large nameplate disclosure establishes none of those conditions by itself.
- Track committed offtake volume separately from non-binding interest.
- Identify floor prices, indexation, minimum-purchase obligations, and termination rights where disclosed.
- Model working capital and scrap during qualification, not only steady-state EBITDA.
- Test whether the plant remains viable when imported magnet prices fall.
- Treat government support as part of project finance, not proof of product-market fit.
Report twelve fields, plant by plant
Announced tonnes divided by national demand cannot resolve product qualification, input security, or utilization. The scorecard below follows each plant and product family so procurement, policy, and investment questions can use the relevant measure.
| Field | Question answered |
|---|---|
| Nameplate and unit | What finished product mass is the line designed to make? |
| Product form | Sintered, bonded, block, segment, assembly, or rotor? |
| Operating evidence | Construction, commissioning, first output, qualification, or recurring shipment? |
| Qualified capacity | How much output is approved for named product families? |
| Utilization | What share of nameplate is producing saleable product? |
| Saleable yield | How much input becomes accepted finished magnets? |
| Grade coverage | Which magnetic and temperature-performance grades are qualified? |
| Input origin | Where do oxide, metal, alloy, heavy rare earths, and recycled feed originate? |
| Customer concentration | How much output depends on one customer or program? |
| Offtake quality | Binding volume, price floor, indexation, and duration? |
| Schedule confidence | What critical equipment, permits, financing, or qualification steps remain? |
| Policy dependence | Which grants, loans, tax credits, procurement rules, or price supports are required? |
Keep original units and dated operating evidence
The project ledger was built from company releases, government award announcements, regulatory filings, facility pages, and technical publications. Each capacity statement was stored with its original unit, product description, facility, phase, target date, and operating-status language. Duplicate announcements referring to the same line were reconciled rather than added.
Classification follows the strongest evidence available at the audit cutoff. First production is insufficient for the commercial-shipment class. Starting or installed lines without broad recurring shipments remain in ramp and qualification; disclosed construction and later phases remain future capacity.
The workbook retains reported values before normalization and calculates maturity buckets, stated units, metric-tonne ranges, material flows, and illustrative output. Incomplete evidence stays unknown rather than becoming zero.
- Evidence cutoff: August 17, 2026.
- Headline basis: disclosed firm-project U.S. finished-magnet nameplate.
- Excluded: upstream-only oxide or metal capacity, generic ambitions, and projects without a disclosed magnet-capacity figure.
- Normalization: ambiguous “tons” converted as both short tons and metric tonnes to preserve a range.
- Demand handling: direct demand and magnets embedded in imported finished goods remain separate.
- Scenario handling: maturity factors are transparent illustrations, not company forecasts.
Measure supply at the qualified product level
The audit establishes a buildout, with a commercial-shipment class much smaller than total disclosed nameplate. Track recurring shipments, qualified product families, input origin, yield, customer concentration, and utilization together. Announced tonnes alone cannot establish procurement readiness or an economically durable plant.
Sources
- U.S. Department of Commerce — Section 232 investigation of NdFeB permanent magnets
Verified Aug 17, 2026
- U.S. Geological Survey — Mineral Commodity Summaries: Rare Earths
Verified Aug 17, 2026
- U.S. Department of Energy — Critical Materials Assessment
Verified Aug 17, 2026
- U.S. Department of Defense — MP Materials rare-earth supply-chain agreement
Verified Aug 17, 2026
- MP Materials — commercial production of NdFeB magnets in Fort Worth
Verified Aug 17, 2026
- MP Materials — investor filings and manufacturing disclosures
Verified Aug 17, 2026
- Noveon Magnetics — U.S. magnet manufacturing and recycling platform
Verified Aug 17, 2026
- Vacuumschmelze / eVAC — U.S. permanent-magnet manufacturing
Verified Aug 17, 2026
- USA Rare Earth — Stillwater, Oklahoma magnet facility
Verified Aug 17, 2026
- Vulcan Elements — U.S. rare-earth magnet manufacturing
Verified Aug 17, 2026
- JS Link America — U.S. permanent-magnet project
Verified Aug 17, 2026
- HyProMag USA — recycled rare-earth magnet project
Verified Aug 17, 2026
- General Motors — domestic rare-earth magnet supply initiatives
Verified Aug 17, 2026
- International Energy Agency — Global Critical Minerals Outlook
Verified Aug 17, 2026
- Government Accountability Office — critical-mineral supply-chain work
Verified Aug 17, 2026
- National Renewable Energy Laboratory — rare-earth magnet supply-chain research
Verified Aug 17, 2026
- Ames National Laboratory — Critical Materials Institute
Verified Aug 17, 2026
- European Commission JRC — rare-earth permanent magnet material-flow research
Verified Aug 17, 2026
- U.S. Department of Defense — Industrial Base Policy critical-minerals programs
Verified Aug 17, 2026
- Federal Register — neodymium-iron-boron permanent magnet trade and security actions
Verified Aug 17, 2026
Supporting material
- Capacity and maturity model
The machine-readable maturity-bucket model, normalization range, and illustrative qualified-output scenarios used in this web edition.
- Methodology and definitions
Definitions for project nameplate, commercial shipment, customer qualification, future capacity, gross process flow, and denominator handling.
- Source ledger
Primary-source index for the companies, government programs, technical references, and demand estimates used in the audit.
Source access notes
Checked . The original links below were unavailable. These notes provide available reading alternatives; the investigation retains its original evidence dates.
Commerce — NdFeB Section 232 investigation
The cited Commerce/BIS release returned 404, and an exact replacement was not verified. The local source ledger preserves the investigation’s citation and methods. It is compiled research, not an archived copy of the government release.
CoTec — HyProMag USA
The cited project URL returned 404. CoTec’s available HyProMag USA asset page describes the same project. It is a current publisher page, not a preserved capture of the original disclosure; the capacity model keeps its August 17, 2026 cutoff.
Department of Energy — materials assessment
The generic assessment URL returned 404. DOE’s available 2023 Critical Materials Assessment announcement provides dated background. The original citation did not identify a version, so this related official source is not presented as an identical replacement document.
GAO — critical minerals
The generic topic URL returned 404. GAO-24-106395, published July 31, 2024, discusses recovery from nontraditional sources. It provides related background, rather than an archive of the missing topic page or an update to the capacity inventory.