1. This report of the Director General to the Board of Governors and, in parallel, to the United Nations Security Council (Security Council), is on the Islamic Republic of Iran’s (Iran’s) implementation of its nuclear-related commitments under the Joint Comprehensive Plan of Action (JCPOA) in relation to its enrichment-related activities. It provides an update on developments since the Director General’s previous report. 

Activities Related to Enrichment

2. In a letter dated 1 June 2022 and received by the Agency on 6 June 2022, Iran informed the Agency that it “intends to install two new cascades of IR6 machine” at the Fuel Enrichment Plant (FEP) at Natanz and that the relevant updated design information questionnaire (DIQ) was available in the facility for examination by the Agency. These two cascades of IR-6 centrifuges are in addition to the 36 cascades of IR-1 centrifuges, six cascades of IR-2m centrifuges, six cascades of IR-4 centrifuges and one cascade of IR-6 centrifuges already declared by Iran in its previous DIQ for FEP.2,3

3. On 6 June 2022, the Agency verified at FEP that Iran had started to install IR-6 centrifuges in the aforementioned single cascade previously declared by Iran to the Agency. On 8 June 2022, the Agency also verified that installation of the two “new” IR-6 cascades had yet to begin.