In a joint statement, the foreign ministry and the Atomic Energy Organization of the Iranian regime described the recent report by Rafael Grossi, Director General of the International Atomic Energy Agency (IAEA), on Iran’s nuclear program as a repetition of “biased and baseless accusations” from the past.
The statement, published on the evening of Saturday, May 31, states that Grossi’s new report does not reflect the “true level” of Tehran’s cooperation with the IAEA and that “fake Israeli documents” were used in its preparation.
The foreign ministry and the Atomic Energy Organization of the Iranian regime added that Grossi’s report was drafted “for political purposes by putting pressure on the agency” and goes “beyond the director general’s assigned responsibilities and is in conflict with the professional principles governing international institutions, such as the principle of impartiality.”
On Saturday afternoon, the IAEA stated in a confidential report that Iran previously carried
out secret nuclear activities at three sites that have long been under investigation.
According to the report, the three sites—Lavizan-Shian, Varamin, and Marivan—as well as potentially other related locations, were part of a structured and undeclared nuclear program that Iran implemented up until the early 2000s, using undeclared nuclear material in some of these activities.
Grossi also once again called on the Iranian regime to “immediately and fully and effectively” cooperate with the agency.
Tehran threatened retaliatory action
In their statement, the Iranian regime’s foreign ministry and Atomic Energy Organization described the director general’s report as “imbalanced” and “lacking comprehensive assessment.”
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The two institutions wrote that parts of the report address “irrelevant, non-safeguards-related, and minor” issues that are raised with the aim of exerting “political” pressure.
They threatened that if certain countries attempt to “misuse” the agency’s report, the Iranian regime will consider “appropriate countermeasures.”
Previously, on March 15, 2025, Grossi had warned, citing growing global concerns about the expansion of the Iranian regime’s nuclear program, that Tehran was very close to crossing the “nuclear threshold.”
The new agency report states that from 2009 to 2018, the Iranian regime stored undeclared nuclear materials or equipment heavily contaminated as a result of its undeclared nuclear program at Turquzabad, and later removed these items from that location.
The IAEA’s new assessment, presented as a “comprehensive” report, was prepared at the request of the Board of Governors in November 2024. The report indicates that the Iranian regime still has not provided credible and technically satisfactory answers regarding the undeclared sites.
According to the report, Iran’s enriched uranium stockpile has increased by more than 953 kilograms since the previous report, reaching 9,247.6 kilograms.
Additionally, the stockpile of uranium enriched up to 60% in the form of uranium hexafluoride has increased by 133.8 kilograms, reaching 408.6 kilograms.
The IAEA’s new findings could have significant technical and diplomatic implications for the Iranian regime’s international engagement concerning its nuclear activities.
