The New York Times reported that the future of Iran’s enriched uranium stockpiles has emerged as the most intricate and strategic hurdle in any potential diplomatic negotiations between Tehran and Washington.

The report explained that this issue is not merely a technical one, but rather the core of the dispute that will determine the future of Iran’s nuclear program, The Caspian Post reports, citing Voice of Emirates.

Map of Military Deployment and Fortifications

The report noted the complex geographical distribution of these stockpiles, with the largest portion likely located at the Isfahan nuclear complex. Other quantities are distributed between the Fordow and Natanz facilities. According to estimates by the International Atomic Energy Agency, Iran currently possesses approximately 440 kilograms of uranium enriched to 60 percent, a level that technically approaches the purity required for military use.

For his part, Rafael Grossi, Director General of the International Atomic Energy Agency, explained that the bulk of these materials are stored in a series of deep, fortified tunnels in Isfahan. Military experts describe these fortifications as extremely difficult to breach if targeted.

Similarly, recent satellite imagery has revealed ongoing efforts to reinforce these fortifications by sealing off some entrances and constructing new defensive barriers around the facility. This is occurring despite the lack of conclusive evidence that these stockpiles have been moved to alternative locations.

Concerns About “Undeclared Sites”

The greatest concern for US officials and nuclear experts lies in the possibility that Tehran might transfer part of its stockpile to undeclared, secret locations outside the oversight and monitoring of the International Atomic Energy Agency (IAEA).

Experts believe that this scenario, if it materializes, could undermine confidence in any future negotiations and render nuclear verification practically impossible. This point, in particular, is one of the biggest challenges facing any future negotiators. The ambiguity surrounding the storage sites remains the most worrisome factor in managing the nuclear conflict between Tehran and the international powers.