Other Metal Ore Mining (U.S.) — An Investor's Primer

NAICS 212290 · United States

A plain-language guide for public- and private-market investors. Figures carry numbered citations to the Sources list at the end. Where our authoritative federal statistics and the broader physical-production data come from different agencies, both are shown and labeled by source. Where an official figure is withheld or unavailable, that is stated rather than filled in.

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1. Overview

NAICS 212290 — "Other Metal Ore Mining" — is the U.S. Census Bureau's catch-all category for mining and first-stage processing of metal ores other than iron, gold, silver, copper, nickel, lead, and zinc, each of which has its own code [14]. What lands in this bucket is small by headcount but strategically outsized: it holds the country's only scale rare-earth mine (Mountain Pass, California), its only operating conventional uranium mill (White Mesa, Utah), its only primary molybdenum mines (Climax and Henderson, Colorado), its first large lithium project under construction (Thacker Pass, Nevada), and its sole domestic sources of beryllium and, newly, antimony [1][3][6][7][11].

Why an investor cares: these are critical minerals — the raw material for magnets, batteries, nuclear fuel, high-strength steel, and defense hardware — and Washington now treats domestic supply as a national-security problem. That has drawn in an unusual amount of government capital (a Department of Defense equity stake and price floor, a $2.26 billion Department of Energy loan, and a production tax credit), overlaid on an industry that is otherwise a classic commodity-price bet [1][20][22][34].

The core idea to hold onto: NAICS 212290 companies are price-takers. They sell undifferentiated commodities into global markets they cannot control, so their profits swing violently with the commodity cycle — most posted losses in 2024 as lithium and rare-earth prices collapsed [2][19][21]. What makes this industry unusual today is that policy has put a partial floor under a favored few.

Two ways in. Public-market investors reach the industry through listed producers (rare earths, uranium, molybdenum, lithium), royalty/streaming companies, and thematic exchange-traded funds (ETFs — pooled, exchange-listed baskets of stocks). Private investors reach it through direct or private-equity (PE) ownership of single-asset developers and through mineral- and royalty-rights ownership. Pure, undiluted public plays on this specific code are few — many "critical-mineral" tickers are thematic exposures, not clean 212290 investments.

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2. What it is, and what it excludes

In scope: establishments primarily engaged in developing a mine site, mining, and/or beneficiating (crushing, grinding, washing, and concentrating) metal ores other than the seven named metals above [14]. Illustrative ores: rare earths, uranium-radium-vanadium, molybdenum, antimony, tungsten, titanium minerals (ilmenite/rutile), tantalum/niobium, beryllium, cobalt, manganese, tin, and platinum-group ores [14].

A 2022 classification change that matters for the data. The NAICS 2022 revision folded two former codes — 212291 Uranium-Radium-Vanadium Ore Mining and 212299 All Other Metal Ore Mining — into today's single 212290 [14][18]. Older datasets still split the industry the old way, so uranium can appear either inside or beside this code depending on the vintage.

What sits just outside 212290 — and why it matters more than the boundary suggests:

The critical takeaway: most of the value — and most of China's dominance — sits in the processing steps that lie OUTSIDE 212290 (separation, conversion, magnet-making). A domestic ore body is not a secure supply chain unless separation, purification, and customer qualification also exist onshore [1][23]. This is exactly why the leading operators (MP Materials, Energy Fuels) are deliberately integrating downstream into manufacturing, and why a company's total revenue cannot be equated with "212290 revenue" [19][23].

Ownership mix. The operating industry is highly concentrated — often one dominant operator per commodity — surrounded by diversified majors, foreign-listed operators, private/PE developers, government co-investors, and royalty owners (detailed in Section 4). No reliable federal breakdown of ownership by nationality or entity type exists, so none is invented here.

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3. How big it is

The business-statistics picture (our federal ground truth — small)

By the numbers the Census Bureau actually collects, this is one of the smallest metal-mining industries:

(The 2022 Economic Census counted 28 establishments on a slightly different basis; the CBP 2023 figure of 58 is the latest official establishment count [15][16].)

Two structural facts stand out. First, capital intensity: roughly $1.97 billion of revenue on about 3,500–3,700 workers is well over $500,000 of revenue per worker, and average payroll runs near $116,000 per worker — high wages typical of capital-heavy extraction [15][16]. Second, concentration: the four largest firms account for 78.7% of revenue (the four-firm concentration ratio, CR4), the top eight for 94.2%, and the top 20 for essentially 100%; the Herfindahl-Hirschman Index (HHI, a 0–10,000 market-concentration gauge) is 1,889 — a concentrated industry in which roughly 20 firms produce everything [15]. The Small Business Administration (SBA) size standard of 1,250 employees is large relative to the industry's ~3,700 total workers because it sets federal-contracting eligibility, not economic "smallness" [17].

A caveat on completeness: because output is dominated by a handful of establishments per commodity, and because byproduct metal from copper/nickel mines is classified in 212230 rather than here, these business figures likely understate the industry's true physical footprint. U.S. lithium production, for instance, is withheld by the U.S. Geological Survey (USGS) to protect a single producer's confidentiality [2].

The physical picture (real units — strategically large)

Because the business data are thin, USGS Mineral Commodity Summaries 2026 and U.S. Energy Information Administration (EIA) data are the better lens. U.S. figures, 2025 unless noted:

For scale, total U.S. nonfuel mineral production was worth about $112 billion in 2025, but that is dominated by copper, gold, and construction aggregates; the 212290 commodities are a small slice by dollar value yet a disproportionate share of "critical-minerals" supply risk [10].

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4. The investable universe

Pure public plays on this exact code are scarce. Rare-earth and primary-molybdenum mines fit cleanly; uranium fits since the 2022 merger; but lithium, cobalt, separation, and magnets often sit in adjacent mining or manufacturing codes. So many familiar tickers are thematic exposures, not pure 212290 investments. All of these companies are strongly levered to their underlying commodity price — producer share prices typically swing more than the commodity itself, because fixed costs, reserve revaluations, and sentiment amplify the move.

*Approximate size buckets are illustrative and swing sharply with the commodity cycle; they are not drawn from the federal-stat ground truth and no precise market caps are asserted.

Major private, foreign, and government owners. Foreign majors: Rio Tinto absorbed lithium producer Arcadium Lithium for $6.7 billion in March 2025, an example of a foreign major buying up U.S.-relevant capacity [28]. Specialty: beryllium runs through Materion (NYSE: MTRN) at Spor Mountain, UT [7]. Private/PE developers: antimony (Montana; Perpetua Resources' Stibnite project in Idaho as a future coproduct source), tungsten joint ventures, and heavy-mineral-sands and junior lithium/rare-earth companies are typically venture- or PE-funded before any listing [6][8]. Government as owner (new): the Department of Defense (DoD) took a ~$400 million preferred-equity stake in MP Materials in 2025, becoming a major shareholder — a structural break from purely private ownership [20].

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5. How the money works

This is a commodity business, and one economic fact dominates all others: producers are price-takers. They sell into global benchmark prices (China is often the marginal price-setter for rare earths, lithium processing, tungsten, and antimony), so revenue and margin are driven first and foremost by the commodity price. The recent moves were brutal — USGS data show U.S. battery-grade lithium carbonate falling from about $63,700 per metric ton in 2022 to $9,000 in 2025 (≈86% down), and NdPr oxide from $124/kg (2022) to $55/kg (2024) before a partial recovery to $69/kg in 2025 [1][2]. Cobalt roughly halved over the same window [4]. Unlike aggregates (sand and gravel), whose low value-to-weight makes them freight-limited local markets, these metals have enough value density to trade globally — so local operators cannot escape the world price [3].

The cost-curve toolkit. Whether a mine survives a down-cycle depends on where it sits on the global cost curve:

• Grade and recovery. Ore grade (metal content) and how much of it is actually recovered as saleable product determine unit economics. For rare earths, the "basket" holds several elements at very different prices, so headline total-REO grade hides how much of the high-value NdPr, dysprosium, or terbium is recoverable [1].
• All-in sustaining cost (AISC) — cash operating cost plus sustaining capital and royalties — is the break-even benchmark. (It is well standardized in precious metals but applied loosely across critical minerals, so investors must reconstruct a comparable cost stack.) China's producers frequently sit below Western AISC, which is the core competitive problem [1][2].
• Byproduct credits. Much U.S. molybdenum, cobalt, and vanadium is produced as a byproduct of copper, nickel, or uranium mining, so its effective cost is subsidized by the host metal — meaning byproduct supply keeps flowing even when a pure-play producer would rationally cut output [3][4].

Reserves vs. resources — and depletion. Under U.S. Securities and Exchange Commission (SEC) mining rules, a resource has "reasonable prospects for economic extraction" (measured/indicated/inferred by confidence), while a reserve is the economically mineable portion after real-world "modifying factors" are applied [39]. Crucially, reserves shrink when prices fall — they are not a fixed inventory. Reserve life (reserves ÷ annual output) runs roughly 37 years for rare earths and ~88 years for molybdenum, but these are accounting ratios, not guaranteed mine lives [1][3]. Because a mine literally consumes its reserve, cash flow must continually fund replacement drilling and development, and a federal depletion allowance shelters some income from tax.

Capital intensity. Greenfield mines cost billions and take a decade to permit and build. Thacker Pass Phase 1 carries a $2.93 billion capital estimate — about $73,250 per annual ton of capacity — underpinned by a $2.26 billion DOE loan [22]. Its technical report assumes a long-term lithium price of $24,000/t, far above the 2025 spot-like level of $9,000 — a vivid illustration of how sensitive project value is to the price assumption [2][22].

Royalties and mineral rights. Under the General Mining Law of 1872, hardrock minerals on federal land pay no federal production royalty — unique among U.S. extractive industries [29]. Private/fee mineral owners, by contrast, negotiate royalties, and royalty/streaming companies monetize this by owning a revenue interest (typically a net-smelter-return, or NSR, royalty — a percentage of value after transport/processing deductions but before mining costs) rather than operating the mine. Their appeal: no capital calls and margins that hold up when spot prices fall, because their cost is fixed [36].

Net margin behavior: boom-bust. In up-cycles, low-cost producers throw off large free cash flow and start dividends and buybacks; in down-cycles the same firms post losses, cut capital spending, and — for developers — dilute shareholders through equity raises or lean on government capital. MP's $110/kg NdPr floor is precisely an engineered margin backstop against that cycle [1][19][20].

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6. What drives demand

Demand is commodity-specific — and, increasingly, as much a security story as an industrial one:

• Rare earths (NdPr, Dy, Tb): permanent magnets for electric-vehicle (EV) motors, wind turbines, robotics, and defense (missiles, jets, drones). Magnets are the leading global use; catalysts the leading U.S. use [1].
• Lithium: ~88% of global demand is batteries (EVs plus grid storage), so demand tracks EV adoption and battery chemistry — the source of its violent price cyclicality [2].
• Uranium: nuclear power. Demand is re-rating on reactor life-extensions, small modular reactors (SMRs), and surging electricity needs from electrification and AI data centers; the International Energy Agency (IEA) expects nuclear generation to reach new highs [37]. Utilities contract years ahead, so uranium equities often move well before physical demand.
• Molybdenum: strength, heat- and corrosion-resistance in alloy and stainless steel and superalloys — tied to construction, energy pipelines, refining, and aerospace, not EV unit sales [3].
• Titanium minerals: mostly TiO₂ pigment (paint, paper, plastics), a GDP-linked end market, plus aerospace metal [5].
• Cobalt: aerospace superalloys (51% of U.S. use), chemicals, and batteries — so it is not solely an EV story, which cushions it against battery-chemistry shifts [4].
• Antimony, tungsten, beryllium: defense and electronics (flame retardants, hardened tooling, aerospace alloys) — precisely the commodities China has weaponized through export controls [6][7][8].

Cross-cutting theme: the energy transition creates the volume; de-risking supply chains away from China creates the priced-in premium and much of the new government demand (stockpiles, DoD offtake) [1][20][37].

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7. Regulation

• Land access & leasing. Hardrock minerals are "locatable" under the General Mining Law of 1872, administered by the Bureau of Land Management (BLM) — claimants stake claims on federal land, pay only nominal fees, and pay no federal royalty [29]. Reform bills repeatedly propose a federal royalty and an abandoned-mine reclamation fund — a live political risk to the no-royalty status quo; the Government Accountability Office (GAO) has documented the patchwork of state royalties and taxes that already apply on state and private land [30].
• Safety. The Mine Safety and Health Administration (MSHA) regulates all metal/nonmetal mines, with at least four full inspections per year underground and two at surface mines. Reported injury rates are modest (about 2.3 recordable cases per 100 workers), but ground-control, equipment, dust, and (for uranium) radiation risks remain [31].
• Environmental permitting. The Environmental Protection Agency (EPA) (Clean Water Act, Clean Air Act), the National Environmental Policy Act (NEPA) review process, Endangered Species Act consultation, tribal consultation, and state mine/water/reclamation permits together drive the multi-year permitting timelines that are the sector's chief bottleneck [32]. Uranium mills and ISR facilities are additionally licensed by the Nuclear Regulatory Commission (NRC) or authorized "Agreement States" (e.g., Wyoming, Texas, Utah) [33].
• Trade & industrial policy — now a first-order force. The Inflation Reduction Act (IRA) Section 45X advanced-manufacturing credit pays 10% of production cost for qualifying critical minerals, with extraction costs now allowed to count — a direct margin subsidy. But the 2025 tax law (Public Law 119-21) phases it down — to 75% of value in 2031, 50% in 2032, 25% in 2033, and zero thereafter — and the §30D consumer EV credit ended September 30, 2025 [34]. On the other side of the ledger, DoD / Defense Production Act (DPA) Title III investments (the MP package; a cobalt award to Jervois) and Section 232/301 tariffs push the other way, mirrored by Chinese export controls on rare earths (April 2025), antimony (December 2024), tungsten, gallium, and germanium [6][8][20][35]. State severance taxes and the federal depletion allowance shape after-tax returns.

Investor implication: model policy support contract-by-contract and credit-by-credit — do not capitalize an indefinite subsidy stream.

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8. Competitive dynamics & consolidation

Domestically the structure is near-monopoly per commodity (one dominant operator each in rare earths, U.S. milling, primary moly, beryllium), sitting inside a global oligopoly dominated by China, which mines ~69% of the world's rare earths and controls the majority of separation, refining, and marginal pricing for several of these metals [1][8]. Barriers to entry are steep: billions in capital, 5–10+ years of permitting, specialized separation chemistry historically held in China, and access to qualified customers.

Two forces are reshaping the field. Consolidation is being forced by the down-cycle — Rio Tinto's $6.7 billion purchase of Arcadium is the marquee example, and distressed lithium and rare-earth juniors are acquisition targets [28]. Vertical integration is the other axis: MP and Energy Fuels are pushing from ore into separation and magnets to capture the margin that pure mining lacks — though integration adds chemical-scale-up, customer-qualification, and working-capital risk [19][23]. Increasingly, government offtake and price floors are themselves a competitive advantage for the anointed (MP) versus everyone else [20].

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9. Risks

1. Commodity-price cyclicality — the central risk. Peak-to-trough moves of roughly −86% (lithium), −56% (NdPr), and −59% (cobalt) since 2022 were enough to erase project margins and drive GAAP losses at MP, Albemarle, and Energy Fuels [1][2][4]. Because much of a mine's cost is fixed, a modest price fall flows disproportionately to cash margin.
2. China as a two-edged sword. Chinese oversupply can crush prices; Chinese export bans can spike them. Both are exogenous and political — "strategic scarcity" does not guarantee high prices [1][6][8].
3. Cost inflation & capital risk. Labor, diesel, energy, and reagents; multi-billion-dollar builds carry overrun and schedule risk, and cost escalation before first production has no revenue to offset it [22].
4. Permitting and litigation. A project can hold an economic resource yet generate no cash for a decade on water, tribal, species, or tailings disputes [29][32].
5. Depletion & reserve replacement. High near-term cash flow can simply be the harvesting of a finite, depleting asset [1][3].
6. Policy-dependence (new). The bull case increasingly relies on §45X, DoD, and DOE support; the scheduled §45X phase-down and the end of the EV credit show how a load-bearing subsidy can be removed by politics [34].
7. Single-asset concentration. One mine (Mountain Pass), one mill (White Mesa) means an operational, weather, or permitting shock can hit the whole U.S. supply of a commodity [19][23].
8. Technology/substitution — the "stranded-asset" analog. Unlike coal or oil, these minerals are mostly transition winners, so classic stranded-asset risk is muted. Their version of it is chemistry substitution (lithium-iron-phosphate, or LFP, batteries cutting cobalt; sodium-ion threatening lithium at the margin), recycling, and failure to meet customer purity [2][4].

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10. How to invest, and the outlook

Public-market routes

• Producer & developer equities (high beta to the commodity). MP (rare earths), LAC/ALB (lithium), CCJ/UUUU/UEC/URG (uranium), FCX (copper + moly). Expect swings amplified versus the underlying commodity, and a boom-bust distribution pattern: dividends and buybacks appear near cycle peaks and get cut in troughs, while developers dilute via equity raises. Treat variable distributions as residual capital allocation, not bond-like income [19][21][23].
• Royalty/streaming companies (lower-beta, margin-resilient). Franco-Nevada, Uranium Royalty, and peers own revenue interests rather than operating risk, so they keep margin when spot falls and avoid capital calls — historically the best risk-adjusted way to own mining cash flows, at the cost of less upside and operator dependence [36].
• Thematic ETFs (diversification + policy theme). URA and URNM (uranium), REMX (rare earth/strategic metals), and LIT (lithium/battery) are the cleanest one-ticket ways to own the theme — but each includes non-U.S. and downstream holdings, so they may re-introduce the very China/Kazakhstan/Canada exposure an investor meant to avoid [38].
• What to underwrite: position on the global cost curve, reserve life, balance-sheet runway through a full down-cycle, and the size and durability of any government offtake or price floor.

Private-market routes

• Direct / PE ownership of single-asset developers (antimony, tungsten, heavy-mineral sands, junior lithium/rare earths) — high risk, pre-cash-flow, and usually dependent on a later listing or a strategic/foreign buyer for exit (cf. Rio-Arcadium) [6][28].
• Mineral & royalty interests — owning fee mineral rights or negotiated NSR royalties gives commodity-linked cash flow without operating or cost-inflation exposure, the private analog of the listed royalty companies. Diligence centers on title, deduction terms, operator/lender rights, and whether the royalty burden itself could delay development [36].
• Government-adjacent structured capital — DOE loans, DoD/DPA preferred equity, and transferable §45X credits create co-investment entry points that sophisticated private investors increasingly use [22][34][35].

Outlook

The following is forward-looking judgment, not reported fact. The base case is constructive but cyclical. The secular demand story — EVs, grid storage, a nuclear revival, defense magnets, and above all supply-chain de-risking from China — is intact and, if anything, strengthening. The 2024–25 lithium and rare-earth troughs appear to be bottoming, while uranium is in a multi-year up-cycle [1][2][11][37]. The distinguishing feature of this cycle is that U.S. national-security policy is now actively underwriting a favored subset of these assets — the closest thing to a floor a commodity business ever gets — even as unsupported juniors remain fully exposed to the cycle [20][34].

The greatest danger is not the absence of long-run demand; it is financing a high-cost project at a cyclical price peak and reaching production after the market turns to oversupply. A sound thesis therefore needs two independent conclusions: that the asset is competitive at a conservative commodity price, and that its location, processing route, contracts, or policy support add strategic value beyond the geology. If only the second holds, "critical-mineral" status may merely subsidize delay. The swing factors to watch: Chinese export-control policy, the durability of U.S. subsidies, the EV/storage and nuclear demand trajectories, and whether flagship builds like Thacker Pass can actually deliver at scale.

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Sources

1. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Rare Earths, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-rare-earths.pdf
2. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Lithium, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf
3. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Molybdenum, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-molybdenum.pdf
4. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Cobalt, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-cobalt.pdf
5. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Titanium Mineral Concentrates, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-titanium-minerals.pdf
6. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Antimony, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-antimony.pdf
7. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Beryllium, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-beryllium.pdf
8. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Tungsten / Niobium / Tin, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-tungsten.pdf
9. U.S. Geological Survey, Mineral Commodity Summaries 2026 — Vanadium, 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-vanadium.pdf
10. U.S. Geological Survey, "Value of U.S. mineral production rose last year" ($112 billion, 2025), news release, 2026. https://www.usgs.gov/news/national-news-release/value-us-mineral-production-rose-last-year-driven-precious-metals-prices
11. U.S. Energy Information Administration, Domestic Uranium Production Report — 2025 Annual Data, 2026. https://www.eia.gov/uranium/production/annual/index.php
12. U.S. Energy Information Administration, Uranium Marketing Annual Report — 2024 Uranium Purchases, 2025. https://www.eia.gov/uranium/marketing/table2.php
13. U.S. Geological Survey, U.S. Uranium Production and In-Ground Resources Through 2024, 2025. https://pubs.usgs.gov/publication/fs20253057/full
14. U.S. Census Bureau, 2022 NAICS Definition — 212290, Other Metal Ore Mining, 2022. https://www.census.gov/naics/?details=212290&year=2022
15. U.S. Census Bureau, 2022 Economic Census, EC2200BASIC — Summary Statistics and Concentration by Industry (NAICS 212290), 2024. https://data.census.gov/table/ECNBASIC2022.EC2200BASIC
16. U.S. Census Bureau, County Business Patterns 2023 (NAICS 212290), 2024. https://www.census.gov/programs-surveys/cbp.html
17. U.S. Small Business Administration, Table of Small Business Size Standards (NAICS 212290 = 1,250 employees), 2023. https://www.sba.gov/document/support-table-size-standards
18. U.S. Small Business Administration, Federal Register, "Small Business Size Standards: Adoption of 2022 NAICS" (merger of 212291 + 212299 into 212290), 2022. https://www.federalregister.gov/documents/2022/07/05/2022-13250
19. MP Materials Corp., Form 10-K (FY2025) and Q4/FY results, SEC EDGAR, 2026. https://www.sec.gov/Archives/edgar/data/1801368/000180136826000008/mp-20251231.htm
20. MP Materials / U.S. Department of Defense partnership: MP press release (July 2025); Federation of American Scientists, "Unpacking the DoD and MP Partnership" (2025); MP Form 10-Q price-protection terms (2026). https://fas.org/publication/unpacking-dod-and-mp-partnership/
21. Albemarle Corp., Form 10-K (FY2024) and FY2024 results, SEC EDGAR, 2025. https://www.sec.gov/Archives/edgar/data/915913/000091591325000026/alb-20241231.htm
22. Lithium Americas Corp., Form 10-K — Thacker Pass and DOE $2.26B ATVM loan closing, SEC EDGAR, 2024–2026. https://www.sec.gov/Archives/edgar/data/1966983/000119312526115081/lac-20251231.htm
23. Energy Fuels Inc., Form 10-K and annual results, SEC EDGAR, 2025–2026. https://www.sec.gov/Archives/edgar/data/1385849/000138584926000009/efr-20251231.htm
24. Uranium Energy Corp., Fiscal 2025 Results (Form 8-K exhibit), SEC EDGAR, 2025. https://www.sec.gov/Archives/edgar/data/1334933/000143774925029806/uec20250923_8k.htm
25. Ur-Energy Inc., 2025 Form 10-K, SEC EDGAR, 2026. https://www.sec.gov/Archives/edgar/data/1375205/000110465926025923/urg-20251231x10k.htm
26. Cameco Corp., 2025 Annual Report, 2026. https://www.cameco.com/invest/financial-information/annual-reports/2025
27. Freeport-McMoRan Inc., Fourth-Quarter and Year-End 2025 Results (Climax/Henderson molybdenum), 2026. https://s22.q4cdn.com/529358580/files/doc_news/2026/FCX_260122.pdf
28. Rio Tinto plc, completion of the $6.7 billion Arcadium Lithium acquisition, SEC EDGAR Form 6-K, March 2025. https://www.sec.gov/Archives/edgar/data/863064/000162828025016021/ex04d06arcadiumcomplete.htm
29. U.S. Bureau of Land Management, "Locatable Minerals (Hardrock and Placer Mining)" / General Mining Law of 1872, current. https://www.blm.gov/programs/energy-and-minerals/mining-and-minerals/locatable-minerals
30. U.S. Government Accountability Office, Hardrock Mining: State Royalties and Taxes (2019); Taxpayers for Common Sense, "Congress Considers Reform for the General Mining Law of 1872" (2025). https://www.gao.gov/products/b-330854
31. U.S. Mine Safety and Health Administration, safety/inspection data; U.S. Bureau of Labor Statistics, injury/illness incidence rates, 2023–2025. https://www.msha.gov/data-reports
32. U.S. Environmental Protection Agency, NPDES Mining Documents; National Environmental Policy Act permitting framework, current. https://www.epa.gov/npdes/npdes-mining-documents
33. U.S. Nuclear Regulatory Commission, Uranium Recovery / Agreement States, updated 2026. https://www.nrc.gov/materials/uranium-recovery
34. Congressional Research Service / IRS, Section 45X Advanced Manufacturing Production Credit; Public Law 119-21 (2025) phase-out and §30D EV-credit termination. https://www.congress.gov/crs-product/IF12809; https://www.irs.gov/irb/2024-51_IRB
35. U.S. Department of Defense, Defense Production Act Title III critical-minerals investments (incl. Jervois cobalt award, 2023), current releases. https://www.defense.gov/News/Releases/
36. McKinsey & Company and Corporate Finance Institute on mining royalties/streaming; Franco-Nevada Corp. 2025 Annual Information Form; Uranium Royalty Corp. 2025 Form 40-F. https://www.mckinsey.com/industries/metals-and-mining/our-insights/streaming-and-royalties-in-mining-let-the-music-play-on
37. International Energy Agency, Global Critical Minerals Outlook 2025/2026 and The Path to a New Era for Nuclear Energy, 2025–2026. https://www.iea.org/reports/global-critical-minerals-outlook-2025/overview-of-outlook-for-key-minerals
38. Fund providers: Global X Uranium ETF (URA), Sprott Uranium Miners ETF (URNM), VanEck Rare Earth & Strategic Metals ETF (REMX), Global X Lithium & Battery Tech ETF (LIT). https://sprottetfs.com/urnm-sprott-uranium-miners-etf/
39. U.S. Securities and Exchange Commission, Modernization of Property Disclosures for Mining Registrants — Compliance Guide (resource/reserve definitions), 2019. https://www.sec.gov/resources-small-businesses/small-business-compliance-guides/modernization-property-disclosures-mining-registrants-small-entity-compliance-guide

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Data notes. Census business figures are our authoritative federal ground truth: 21 firms and $1.967B receipts (2022 Economic Census); 58 establishments, 3,719 employees, and $431.0M annual payroll (County Business Patterns 2023); SBA size standard 1,250 employees; CR4 78.7%, CR8 94.2%, HHI 1,889 [15][16][17]. Physical-production and price figures are USGS/EIA and are labeled by source; company figures are from SEC filings and company results. U.S. lithium output is withheld by USGS and is not stated here. Uranium prices vary by measure — utility delivered purchases averaged ~$52.71/lb in 2024 [12], while 2025 producer-realized prices ran ~$62/lb [25][26]; these are not interchangeable. Approximate company "size" buckets are illustrative and cycle-sensitive, not federal ground truth. Outlook statements in Section 10 are forward-looking judgment, not reported fact.