Iran Adds More IR-1 Centrifuges to Natanz: Verification and Monitoring in the Islamic Republic of Iran in Light of United Nations Security Council Resolution 2231 (2015) (GOV/INF/2021/10)

Report by the Director General
February 3, 2021

Weapon Program: 

  • Nuclear

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 research and development (R&D) activities. It provides an update on developments since the Director General’s previous reports.

Activities Related to Enrichment R&D

2. On 19 December 2020, during a design information verification, the Agency verified that Iran had begun installing IR-1 centrifuges in R&D line 5 at the Pilot Fuel Enrichment Plant (PFEP) at Natanz. In a letter dated 22 December 2020, the Agency requested Iran to clarify the purpose of installing these IR-1 centrifuges and to update the Design Information Questionnaire (DIQ) for PFEP.