Image Credentials: Image Title: Iran Increases Uranium Stockpile to Near Weapons-Grade Levels, UN Warns of Serious Concerns Source: (sora.chatgpt) Date: May 2025 Attribution: Created by AI-generated imagery (sora.chatgpt), it does not depict a real-world scene.
By Staff Writer with Agencies
Vienna, Austria – May 31, 2025
Iran has significantly increased its stockpile of uranium enriched to near weapons-grade levels, according to a confidential report from the United Nations nuclear agency. The report, issued Saturday by the International Atomic Energy Agency (IAEA), highlights concerns about Iran’s growing nuclear program and its lack of cooperation with the ongoing investigation into uranium traces found at undeclared sites within the country.
As of May 17, Iran’s stockpile of uranium enriched up to 60%, a step just short of weapons-grade 90%, reached 408.6 kilograms (900.8 pounds), marking a nearly 50% increase from the IAEA’s last report in February. This rise of 133.8 kilograms (294.9 pounds) brings Iran closer to the threshold required for nuclear weapons production, a troubling development amid stalled negotiations with the U.S. and heightened international scrutiny.
The IAEA’s warning is stark: Iran is now “the only non-nuclear-weapon state to produce such material,” a situation the agency describes as “of serious concern.” According to the report, around 42 kilograms of 60%-enriched uranium is sufficient to produce one atomic bomb, should it be further enriched to weapons-grade levels.
Iran’s overall stockpile of enriched uranium, which includes material enriched to lower levels, now stands at 9,247.6 kilograms (20,387.4 pounds), an increase of nearly 1,000 kilograms (2,100 pounds) since February. While Iran insists that its nuclear program is for peaceful purposes, IAEA Director Rafael Mariano Grossi has emphasized that Tehran’s uranium enrichment activities raise the possibility of producing “several” nuclear bombs if it chooses to pursue that path.
Rising Tensions
The timing of the IAEA report is especially sensitive, as the administration of U.S. President Donald Trump seeks a renewed deal with Iran to limit its nuclear ambitions. Despite several rounds of negotiations, no agreement has been reached, and the situation remains precarious. Trump has expressed optimism about the possibility of a deal, urging Iran to negotiate rather than escalate tensions.
However, Israel’s response to the IAEA’s findings was swift and resolute. Prime Minister Benjamin Netanyahu’s office issued a statement, emphasizing that the report serves as a clear indication of Iran’s determination to advance its nuclear weapons program. Israel argues that Iran’s uranium enrichment activities “have no civilian justification whatsoever” and calls for immediate international action to prevent Tehran from crossing the nuclear threshold.
Netanyahu’s remarks were particularly urgent, issued on a Saturday, traditionally a day of rest in Israel, underscoring the gravity of the situation in the eyes of the Israeli government.
IAEA Calls for Urgent Cooperation
Alongside the uranium stockpile report, the IAEA released a second, 22-page confidential report urging Iran to cooperate fully with the agency’s investigation into uranium traces found at several undeclared sites. The IAEA has repeatedly raised concerns about Iran’s lack of transparency regarding these sites, which include locations in Turquzabad, Varamin, and Marivan, as well as the demolished Lavisan-Shian facility, which was razed by Iran after 2003.
The agency’s inspectors have found manmade uranium particles at these sites, raising suspicions of a covert military nuclear program that may have existed before 2003. Despite these findings, Iran has failed to provide adequate answers to the IAEA’s inquiries, prompting Grossi to call for a full investigation to clarify the nature of Iran’s past nuclear activities.
Potential Escalation
The IAEA’s reports could serve as a basis for European nations to escalate their response, potentially triggering “snap-back” sanctions under the 2015 nuclear deal, which is set to expire in October. While the U.S. continues its efforts to secure a new deal with Iran, the increasing stockpile of uranium and the lack of cooperation on past activities could complicate any diplomatic efforts.
Iranian officials, however, have dismissed speculation about an imminent nuclear deal, reiterating that any agreement would require the full lifting of sanctions and the continuation of its nuclear program. Tehran’s defiant stance raises the possibility of further tensions with the West, especially if European nations push for sanctions as a result of Iran’s non-compliance with the IAEA’s demands.
In the meantime, Trump remains hopeful that a diplomatic resolution is still possible. He reiterated his belief that Iran would ultimately prefer a deal over military confrontation, stating, “They don’t want to be blown up. They would rather make a deal.”
Staff Writers at Open Chronicle produce in-depth, field-informed reporting on defense, diplomacy, cultural transformation, and global affairs. Known for clarity, accuracy, and analytical depth, they connect breaking developments to broader historical and strategic contexts. In addition to frontline journalism, Staff Writers also contribute to the Open Chronicle Encyclopedia, crafting authoritative entries that preserve critical knowledge and enrich public understanding.