Uranium

What it is

Uranium (symbol U, atomic number 92) is the raw fuel of every commercial nuclear power station. Natural uranium is 99.27% U-238 and just 0.72% fissile U-235; commercial light-water reactors require the U-235 concentration raised to 3-5% via enrichment, while advanced small modular reactors need up to 20% high-assay low-enriched uranium (HALEU). One tonne of uranium fuel produces the same thermal output as roughly 14,000 tonnes of coal. Uranium ore is mined as uranium oxide (U3O8, "yellowcake"), converted to uranium hexafluoride (UF6) for centrifuge enrichment, then fabricated into ceramic fuel pellets. The same centrifuge cascades that produce reactor fuel can, with extended run-time, produce weapons-grade material (90%+ U-235), making uranium enrichment the structural dual-use chokepoint of the nuclear fuel cycle. The players are a small group: two state champions (Kazakhstan's Kazatomprom, Russia's Rosatom), two Western majors (Canada's Cameco, France's Orano), and a handful of junior miners across Africa and Central Asia.

History

The Manhattan Project, from 1942, turned uranium into an industrial-scale endeavor, drawing ore from the Athabasca Basin in Canada and the Colorado Plateau in the United States; the US alone mined 378,316 tonnes U cumulatively to 2024. Civilian nuclear power expanded rapidly in the 1960s and 1970s. Three accidents collapsed Western reactor orders: Three Mile Island (1979), Chernobyl (1986), and Fukushima (March 2011). Uranium spot peaked at roughly US$136/lb U3O8 in June 2007, then fell to near US$20/lb by 2017. Recovery began in 2021, accelerated by Europe's energy-security shock after Russia's invasion of Ukraine in 2022 and new demand signals from AI-related data-center buildout; prices crossed US$100/lb in 2024 before a plateau.

Current state

World reactor demand runs at roughly 67,000 tonnes of uranium per year, above current mine output, sustaining a structural supply deficit. Kazakhstan dominates global production, accounting for 39% of world mine supply in 2024 entirely via in-situ recovery (ISR); Kazatomprom guided 2026 output to 27,500-29,000 tU on a 100% basis, nominally 9% above 2025 but roughly 10% below earlier nominal plans, with sulphuric-acid supply as the binding ISR constraint. Canada is the second-largest producer (24% in 2024), led by Cameco's Cigar Lake and McArthur River mines in Saskatchewan's Athabasca Basin, which grade at 15-17% U3O8 against a global average below 1%. Namibia ranks third at 12%. Uranium spot sat near US$86/lb U3O8 in mid-2026 (see 우라늄 가격, 구조적 공급 부족이 쌓이는 가운데 86달러 근방에서 정체). Russia's Rosatom held about 44% of global SWU enrichment capacity as of mid-2026; the US moved in 2026 to rebuild domestic capacity, committing US$2.7 billion across DOE task orders before Russian LEU import waivers expire in January 2028 (see [[us-enrichment-deRussification-2026]]). Global uranium resources stand at 5.925 million tU at costs below US$130/kg, enough for roughly 90 years at current consumption with conventional reactors.

Relationships

Uranium ties the energy transition, nuclear non-proliferation, and great-power supply-chain competition together at a single chokepoint. Kazakhstan's ISR fields feed both Western utilities and Russian-linked logistics channels, making Kazatomprom the global swing supplier whose annual guidance moves spot prices. Australia holds 28% of globally identified resources, the largest national share, but produces a fraction of that under domestic export-licensing frameworks. China's rapidly expanding fleet, adding 10-15 GW per year, is the largest incremental demand driver and is locking up long-term mine offtake across Africa and Central Asia. The IAEA verifies uranium material under NPT safeguards; breakout risk, the time required to convert reactor-grade LEU into weapons-grade HEU (90%+ U-235), is the central metric of non-proliferation negotiations with Iran and North Korea.

What to watch

• Whether the structural supply deficit widens fast enough to push spot uranium above its plateau and reopen the gap with long-term contract prices (see 우라늄 가격, 구조적 공급 부족이 쌓이는 가운데 86달러 근방에서 정체).
• Whether sulphuric-acid constraints force Kazatomprom into a mid-year guidance cut, as in 2025, tightening physical supply (see 카자톰프롬, 2026년 생산량 9% 증가 전망하지만 황산 공급 조건부로 상한선 설정).
• Whether the US DOE enrichment task orders translate into operating SWU capacity before Russian import waivers lapse in January 2028 (see [[us-enrichment-deRussification-2026]]).
• China's offtake deals in Africa and Central Asia, and how they constrain the incremental supply available to Western utilities over the next decade.