Uranium
Uranium barely has a spot market. Most of it is sold years ahead under contract, which makes the visible price a thin edge on a much larger hidden one.
At a glance
- Traded as
- Uranium concentrate, U3O8, known as yellowcake
- Quoted in
- US dollars per pound of U3O8
- World production
- Roughly 49,000 tonnes of uranium in 2024
- Largest producer
- Kazakhstan, over 40% of world mine supply
What is actually being traded
The traded product is uranium concentrate - U3O8, the yellow powder that comes out of a mill - quoted in dollars per pound. It is not fuel yet. Between the mine and a reactor sit three more industrial steps: conversion into uranium hexafluoride, enrichment to raise the concentration of the fissile isotope, and fabrication into fuel assemblies.
Each of those steps has its own price, its own capacity constraint and its own supply politics. A shortage of conversion or enrichment capacity can push utilities to buy more raw uranium than they need - the practice known as underfeeding and overfeeding - which is why the concentrate price sometimes moves for reasons that have nothing to do with mining.
Uranium is also the least market-like of the big commodities. Utilities buy under multi-year contracts negotiated privately, and the published spot price covers a small share of volume. It is a real price, but it is the price of the marginal pound, not of the market.
The spot price is the tail, not the dog. Most uranium changes hands under long-term contracts at prices nobody publishes.
What it is used for
Essentially all commercial uranium goes into nuclear power. There is a small medical and research isotope market, and a naval propulsion demand that never appears in commercial statistics, but for pricing purposes uranium demand is reactor demand.
That makes demand unusually predictable. A reactor consumes a known quantity of fuel per year, refuelled on a known cycle, and its operator cannot substitute anything for it. Demand only changes when reactors are built, restarted, extended or closed - which is why policy announcements move this market more than economic data.
- Commercial nuclear power
- 97%
- Research reactors, isotopes and other
- 3%
Source: World Nuclear Association
Where it comes from
Kazakhstan dominates production, and it does so with a method that matters: in-situ leach mining, which dissolves uranium underground and pumps it to the surface. It is cheap and low-impact, and it depends on a steady supply of sulfuric acid - a mundane input whose shortage has visibly cut Kazakh output.
Canada holds the highest-grade deposits in the world in the Athabasca Basin, where ore can be a hundred times richer than a typical mine elsewhere. Namibia and Australia round out the top four. Notably, the largest consumers - the United States, France, China - mine almost none of what they use.
| Name | Share |
|---|---|
| Kazakhstan | 43% |
| Canada | 15% |
| Namibia | 14% |
| Australia | 7% |
| Uzbekistan | 7% |
| Rest of world | 14% |
Source: World Nuclear Association
Behind the subscription
The rest of this entry is the part that changes a decision: what moves the price, which contract sets it, who ships it and where that can be cut off.
What moves the price
Why the contracting cycle matters more than any single year's supply, and the seven forces - from Kazakh guidance to financial buyers - that actually move uranium.
Where it is traded
The one listed contract, the assessments that actually set the price, and what that means for a market that has to resolve against a number.
Who ships it, and where it can be cut off
The real uranium bottleneck is not the mine. Where conversion and enrichment sit, and why that map decides fuel security.
How this shows up in prediction markets
Which number can even settle a uranium question, and why a price threshold here behaves unlike one in oil or copper.
Included with a subscription
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Frequently asked questions
- Why is there no proper uranium spot market?
- Because utilities buy fuel years ahead under privately negotiated contracts. Spot transactions exist but cover a small share of volume, so the published spot price describes the marginal pound rather than the market as a whole.
- Who produces the most uranium?
- Kazakhstan, at over 40% of world mine production, using in-situ leach mining. Canada, Namibia and Australia follow. The largest consumers mine almost none of what they use.
- Why does enrichment matter more than mining?
- Because mine supply can be diversified in a few years, while enrichment capacity takes far longer and far more capital to build. A large share of world enrichment capacity sits in Russia, which makes it the real constraint in any fuel security question.
- Do financial buyers really move this market?
- Yes, more than in larger commodities. Vehicles that buy and hold physical pounds withdraw supply from a thin spot market without any reactor requiring it, which amplifies price moves in both directions.
Primary sources
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