Where Uranium Comes From: Production by Country (Top 10)

60-second answer: Kazakhstan produces the most uranium by far — roughly 40% or more of world mine supply as of the mid-2020s — mostly through low-cost in-situ recovery led by state producer Kazatomprom. Canada is a distant second, home to the ultra-high-grade Athabasca Basin deposits mined by Cameco. Namibia, Australia, Uzbekistan, Niger, Russia and China round out the top producers. Supply is highly concentrated, which is why a disruption in one country can move the whole market. Explore where the mines actually sit on our uranium projects map. This is not investment advice.

Uranium is mined in only a handful of countries, and a few of them dominate. That concentration is the single most important fact about the supply side of this market. When you understand which countries produce the most, how they mine it, and how secure each source is, you understand most of the geopolitics baked into the uranium price.

This guide ranks the top producers, explains the mining method behind each, and spells out what each source means for supply security and cost.

The top 10 uranium producing countries

The table below ranks countries by approximate share of global mine production as of the mid-2020s. Treat the percentages as broadly public, WNA-style figures — they shift year to year and should be read as approximate, not precise.

Kazakhstan: the Saudi Arabia of uranium

Kazakhstan is the story. It produces more uranium than the next several countries combined, and it does so at the lowest cost in the world. The reason is geology plus method: Kazakh deposits sit in permeable sandstone that suits in-situ recovery, where a solution is pumped underground to dissolve uranium and bring it to the surface. No big open pit, no deep shaft, far less capital.

State champion Kazatomprom is the world's largest producer, often working through joint ventures with Western and Asian partners. That single point of control is exactly why analysts watch Kazakhstan so closely — production guidance changes, sulfuric-acid shortages, or transport-route problems there ripple straight into global supply. For investors, this is both the cheapest supply on Earth and the market's largest single-country concentration risk. We cover the producer in depth in our Kazatomprom stock guide.

Canada: high grade, Western security

Canada is the quality play. The Athabasca Basin in Saskatchewan hosts the highest-grade uranium deposits on the planet — ore grades orders of magnitude richer than the world average. High grade means fewer tonnes mined per pound of uranium, which helps offset the cost of conventional underground mining.

Cameco is the flagship producer, with tier-one assets like Cigar Lake and McArthur River, and the country is a cornerstone of secure, non-Russian, non-Kazakh supply that Western utilities increasingly prize. If Kazakhstan is about volume and cost, Canada is about grade and geopolitical reliability. See the pure-play options in our Canadian uranium stocks guide.

Namibia and Australia: scale and reserves

Namibia punches above its weight with large open-pit operations like Husab and Langer Heinrich. The deposits are low-grade, so economics depend on scale and a healthy uranium price. Notably, Chinese state enterprises hold major stakes in Namibian output, which channels a meaningful slice of supply toward China's own reactor fleet.

Australia holds the world's largest known uranium reserves yet produces a comparatively modest amount. Much of its output comes as a by-product of copper mining at Olympic Dam, alongside ISR projects such as Boss Energy's Honeymoon. State-level mining restrictions and long permitting timelines have historically capped how much of those reserves reach the market — making Australia the sector's great swing-supply question mark.

Uzbekistan, Niger, Russia and China

Uzbekistan mirrors Kazakhstan's low-cost ISR model through state producer Navoiyuran and has been quietly growing its exports.

Niger was long a key supplier to Europe via France's Orano, but the 2023 military coup and subsequent export uncertainty disrupted flows and reminded the market how fragile African supply routes can be. It is the clearest recent example of political risk turning into supply risk.

Russia mines a modest share of the world's uranium, but its real leverage sits downstream in conversion and enrichment, where it holds a large slice of global capacity. Western Russia-ban measures target that fuel-cycle chokepoint more than raw mine output.

China mines relatively little at home. Instead it secures uranium by mining abroad (Namibia, Kazakhstan) and buying aggressively on the market to feed the fastest reactor build-out in the world.

For the broader picture of how these sources meet reactor demand, see our uranium supply and demand guide.

What this map means for investors

Two themes fall out of the country picture. First, concentration: a large share of mine supply comes from just two or three countries, so a shortfall in Kazakhstan or a disruption in Niger matters far more than it would in a diversified commodity. Second, security premiums: Western utilities increasingly pay up for supply they view as reliable, which favors Canadian and Australian pounds over Russian-adjacent material.

That geography is why "where the pounds come from" is not a trivia question — it drives contracting, pricing, and which miners command a premium. You can see the actual deposits, operators and jurisdictions on our interactive mines map, and screen the companies behind them on the projects page. For African supply specifically, our African uranium stocks guide digs into the operators exposed to Namibia and Niger.

Frequently asked questions

Which country produces the most uranium? Kazakhstan, by a wide margin — roughly 40% or more of world mine supply as of the mid-2020s, mostly via low-cost in-situ recovery led by state producer Kazatomprom.

Where is uranium mined? Production is concentrated in a handful of countries: Kazakhstan, Canada, Namibia, Australia, Uzbekistan, Niger, Russia and China account for the large majority of global mine supply.

Why is uranium production so concentrated? Economic uranium deposits are geographically limited, and low prices during the last bear market discouraged new mines. The result is that a few countries — led by Kazakhstan — supply most of the world's uranium.

Which country has the most uranium reserves? Australia holds the largest known reserves, but it produces a modest amount relative to those reserves because of by-product mining, state-level restrictions and long permitting timelines.

Is uranium mining safe from geopolitical risk? No — the 2023 Niger coup and Western restrictions on Russian fuel-cycle services both show how quickly politics can affect supply. That risk is a core reason Western utilities favor Canadian and Australian material.

This article is for informational purposes only and is not investment advice. Always do your own research.