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Sources: World Nuclear Association, U.S. Geological Survey · Updated 24 Sept 2026

Uranium — Supply structure report

Production and refining by country, the processing chokepoint, export-control status, and which producers can actually sell to a third party rather than consuming their own feed.

At a glance

Largest producer
Kazakhstan 41%
World Nuclear Association (WNA 2025)
Top 3 producers
68%
share of world output
Concentration (HHI)
2,253
moderately concentrated
Producing countries
11
2 supply half
Export measures
1
USGS compilation, Jan 2026

Key findings

What the evidence shows

Every figure from a named public source

World Primary Uranium Mine Production & Kazatomprom Dominance

According to the World Nuclear Association (WNA 2025) and IAEA, world primary uranium mine production reaches 62,600 metric tons U3O8 equivalent (~53,100 t U). The leading producer jurisdiction is Kazakhstan (Kazatomprom), accounting for 41% of global supply. (Note: Uranium is outside USGS MCS 2026 scope).

62,600 t U3O8
World Mine Production (WNA 2025)
World Nuclear Association (WNA 2025)

How concentrated supply is

The Herfindahl-Hirschman index over country shares is 2,253 (moderately concentrated). The top three producers hold 68%; 2 countries supply half.

2,253
HHI
World Nuclear Association (WNA 2025); index bands from the US merger guidelines
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The full report is written from public sources, and every figure in it is numbered to its source.

The full report includes:
✓Supply structure: mine production by country
✓Processing and refining: where the value and the leverage sit
✓Merchant availability: which producers can sell to a third party
✓Export controls and trade measures in force
✓What would have to change for the structure to change
✓Numbered sources and PDF download

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The rest is in the full report

5 sections with numbered sources: Supply structure: mine production by country; Processing and refining: where the value and the leverage sit; Merchant availability: which producers can sell to a third party and more.

FULL REPORT

Full analysis and cited sources

Supply structure: mine production by country

Kazakhstan is the largest producer of uranium, at 41.2 percent of the output recorded across producing countries in 2024. It is followed by Canada at 15.3 percent, Namibia at 11.5 percent and Australia at 9.3 percent. The country figures sum to 62,600 metric tons U3O8 equivalent.[1]

Also in the full report

The full report also opens these tools:

✓
Processing model:

Change grade, recovery and costs to test a flowsheet.

✓
Contractual Penalty Schedules:

Typical off-spec deductions for deleterious elements (As, Bi, Sb, etc.).

✓
Trade Desk:

Model cargo financing, letters of credit and landed cost.

✓
Multimodal Logistics & Trade Corridors:

Primary overland rail, transshipment port pairs, and ocean freight routing.

What’s in the full report

5 sections · approximately 444 more words

  1. 01Supply structure: mine production by country
  2. 02Processing and refining: where the value and the leverage sit
  3. 03Merchant availability: which producers can sell to a third party
  4. 04Export controls and trade measures in force
  5. 05What would have to change for the structure to change

Executive Briefing & Strategic FAQ

Essential empirical supply-chain and geopolitical questions for market participants and intelligence analysts.

3 Key Q&As
Which countries dominate global mining and refining for Uranium?▼

Global Uranium production is characterized by high geographical concentration in both raw extraction and chemical processing, as documented in MiningBridge's empirical supply-chain models.

What are the critical supply chain bottlenecks and geopolitical risks for Uranium?▼

Key geopolitical and operational risks include export licensing constraints, high chemical conversion barriers, and long lead times for developing non-concentrated commercial refining capacity.

What are the primary commercial uses for Uranium, and can it be substituted?▼

Uranium is essential across energy transition, advanced electronics, and defense systems. While direct substitutes exist in select low-performance applications, replacing Uranium in mission-critical hardware incurs significant metallurgical and cost trade-offs.