An Atomic Energy Organization of Iran (AEOI) laboratory involved in nuclear fuel-cycle activities.

Intended recipient of a nitrogen production plant, the procurement of which was denied on April 30, 2002, by a member state of the Nuclear Suppliers Group (NSG).

Established in 1990 as a center for nuclear technology training; existence of the facility was declared to the International Atomic Energy Agency (IAEA) in March 2003; placed under IAEA inspection as of June 2003; located at the Tehran Nuclear Research Centre (TNRC); houses hot cells; functions as a backup complex for research and development for the Iranian nuclear fuel cycle, and produces 99Mo, 131I and 133Xe radioisotopes; provides a wide range of laboratory services for the Nuclear Fuel Production Division of AEOI (now NFPC); equipped with a gamma-ray spectrometry system, an Alpha-Particle spectrometry system, neutron activation analysis facilities, and a radiocarbon dating laboratory.

The location of conversion activities using undeclared nuclear material imported (allegedly from China) in 1991, including:

• Uranium metal conversion experiments carried out between 1995 and 2000 using natural uranium (the equipment used in these experiments was dismantled)
• Uranium metal production that had been intended for use in a laser enrichment program
• Pulse column testing and pellet production using UO2; uranium conversion and purification for potential use at the Uranium Conversion Facility (UCF)
• Production of UF4 using UO2
• Processing of gram quantities of UO2 that had been irradiated at the Tehran Research Reactor (TRR)

Has served as the storage location for:

• Cylinders containing imported UF6, some of which was used in centrifuge tests at Kalaye Electric Company
• A small amount of separated plutonium
• Waste from reprocessing experiments at TNRC that had first been moved to Anarak
• Uranium metal secretly imported in 1993, some of which was used in laser enrichment experiments at TNRC and Lashkar Ab'ad
• Imports and domestic production of uranium metal used in atomic vapor laser isotope separation (AVLIS) experiments, a technique used for laser enrichment of uranium

Sanctions

Designated by the U.N. Security Council on March 3, 2008, pursuant to resolution 1737 (2006), as an entity involved in or supporting Iran's proliferation-sensitive nuclear activities or development of nuclear weapon delivery systems; with some exceptions, the designation requires states to freeze assets that are owned or controlled by the entity, directly or indirectly, and to ensure that assets are not made available to the entity.

Previously removed from the U.N. list on January 16, 2016, pursuant to the Joint Comprehensive Plan of Action (JCPOA); returned to the U.N. list on September 28, 2025, as part of the reimposition of sanctions on Iran.

Listed by the European Union on April 24, 2007, as an entity linked to Iran's proliferation-sensitive nuclear activities or Iran's development of nuclear weapon delivery systems; with some exceptions, E.U. member states must freeze assets owned or controlled by the entity, directly or indirectly, and prevent assets from being made available to it.

Previously removed from the E.U. list on January 16, 2016, pursuant to the JCPOA; returned to the E.U. list on September 29, 2025, as part of the reimposition of U.N. sanctions on Iran.

Added on August 12, 2008, to the Specially Designated Nationals (SDN) list maintained by the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC), freezing its assets under U.S. jurisdiction and prohibiting transactions with U.S. parties, pursuant to Executive Order 13382, which targets proliferators of weapons of mass destruction (WMDs) and their delivery systems; re-designated on November 5, 2018, pursuant to Executive Order 13599, which targets entities controlled by the Government of Iran and Iranian financial institutions.

Foreign parties facilitating transactions for the entity or otherwise assisting the entity may be subject to U.S. sanctions.

Previously removed from the SDN list on January 16, 2016, pursuant to the JCPOA; returned to the SDN list on November 5, 2018, as part of the reimposition of U.S. sanctions on Iran.

Sanctioned by the governments of Australia, Japan, and the United Kingdom, restricting business and financial transactions with the entity and/or freezing its assets in those countries.

Listed by the British government in 2015 as an entity of potential concern for WMD-related procurement, but removed in 2017 after the U.K. withdrew its Iran list.