The International Atomic Energy Agency (IAEA) and Kazakhstan signed an agreement Thursday to locate the world's first bank of low-enriched uranium in the ex-Soviet nation to ensure fuel supplies for power stations and prevent nuclear proliferation.

The storage facility, set to become fully operational in 2017, is intended to provide IAEA member states with confidence in a steady and predictable supply of fuel even if other routes are disrupted.

Advocates also see it as a way to dissuade countries from building enrichment facilities that might be misused to purify uranium to weapons-grade levels — an issue that bedevilled relations between Iran and the West for more than a decade.