Controlled by Ghorb Nooh, which is overseen by Khatam Al Anbia (KAA).

According to Alireza Jafarzadeh (formerly of the National Council of Resistance of Iran), has built tunnels and structures for nuclear and missile projects for Iran's Ministry of Defense and Armed Forces Logistics (MODAFL) and is experienced in building anti-radiation walls and ventilation systems; according to Jafarzadeh, carries out engineering and tunnel excavation projects throughout Iran.

According to Jafarzadeh, is in charge of building a tunnel in the vicinity of Shahrak-e Bazi (northeast Tehran), code-named "Hormuz Tunnel," to be used for nuclear weapons research and development; the tunnel project is reportedly directed by engineer Hashemi-Tabar, and involves engineers Nowroozi-doust and Dehghan; according to Jafarzadeh, Hara Company's "Sadaf Workshop" is involved in building a tunnel at the Isfahan nuclear site; Sadaf Workshop and the Isfahan tunnel project are reportedly directed by engineer Madadi.

Reportedly contracted by Ab-Niroo to work on the Tehran-Karaj Water Conveyance Tunnel, and by Tehran Urban and Suburban Railway Company to complete Line 7 of the Tehran Metro; reportedly contracted by the Municipality of Tehran to work on the Niayesh Road Tunnel.

In 2002, reportedly began construction activities, including excavation of an access tunnel and ventilation shafts, for the Lavarak Power Plant; In 1998, reportedly contracted by Ab-Niroo to complete excavation for the Masjed Soleiman Hydroelectric Power Plant.

Directed by Brigadier General Ehtessam of Iran's Islamic Revolutionary Guard Corps (IRGC); includes members of the IRGC's engineering corps.

Sanctions

Designated by the U.N. Security Council on June 9, 2010, 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 October 18, 2023, following the expiration of targeted sanctions on Iran; 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 June 19, 2010, 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.

Added on October 25, 2007, 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; also designated pursuant to Executive Order 13224, which targets terrorists and those providing support to terrorists or acts of terrorism; also subject to the Iranian Financial Sanctions Regulations, which restrict the use of the U.S. financial system for transactions involving Iranian entities.

Foreign parties facilitating transactions for the entity or otherwise assisting the entity may be subject to U.S. sanctions; foreign financial institutions facilitating transactions for the entity may be prohibited from opening or maintaining correspondent or payable-through accounts in the United States; subject to heightened U.S. export license requirements (with a presumption of denial) due to involvement in activities related to terrorism and WMD proliferation.

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

Listed by the Japanese government in 2025 as an entity of concern for proliferation relating to missiles and biological, chemical, and nuclear weapons.

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.