Kazakhstan offers to manage Iran’s uranium stockpile if nuclear deal is reached

Kazakhstan just raised its hand for one of the most sensitive jobs in global nuclear diplomacy: taking custody of Iran’s enriched uranium stockpile.

President Kassym-Jomart Tokayev publicly offered on May 11 to assist in resolving the Iranian nuclear issue, contingent on the US and Iran actually reaching a deal.

Why Kazakhstan, and why now

Kazakhstan produces roughly 38.6% of the world’s uranium, making it the single largest supplier on the planet with annual output of around 23,270 tons. It also hosts the International Atomic Energy Agency’s Low Enriched Uranium fuel bank at the Ulba Metallurgical Plant, the only facility of its kind anywhere in the world.

Iran currently holds approximately 440 kg of uranium enriched to 60%, a level that sits uncomfortably close to weapons-grade material. Any deal between the two sides would almost certainly require that stockpile to go somewhere, and “somewhere” needs to be a place both sides can trust.

A track record that actually backs up the pitch

During the implementation of the 2015 Joint Comprehensive Plan of Action, Kazakhstan supplied 60 metric tons of natural uranium to Iran. That transfer was part of a swap arrangement in which Iran shipped out its own low-enriched uranium in return.

In 1994, a covert operation known as “Project Sapphire” removed approximately 600 kg of highly enriched uranium from Kazakhstan. The material was a leftover inheritance from the Soviet nuclear program, and its successful extraction became a landmark moment in non-proliferation history.

Kazakhstan also voluntarily gave up the nuclear weapons it inherited after the Soviet Union collapsed, making it one of the few nations in history to actively denuclearize.

Tokayev’s offer emphasized these non-proliferation credentials. The framing was deliberate: Kazakhstan is presenting itself not as a geopolitical player trying to gain leverage, but as a technically capable, historically proven partner that can execute a very specific and very difficult task.

What this means for markets and investors

If a deal materializes and Kazakhstan does end up managing Iran’s stockpile, it would further cement the country’s centrality to global nuclear supply chains.

Iran sitting on 440 kg of 60%-enriched uranium is a source of geopolitical risk premium across multiple markets. Any credible path to reducing that stockpile, even a conditional one, could ease some of the tension baked into energy prices and broader risk assessments in the region.

If negotiations fall apart again, Kazakhstan’s offer becomes a footnote and the status quo persists: Iran keeps its stockpile, sanctions remain a drag on regional trade flows, and the risk premium stays elevated.

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