To the northwest of Parchin in the Barjamali Hills, a test range for liquid-propellant missile engines is part of the Shahid Hemat Industrial Group (SHIG) research facility, where signature of engine test stand firing, probably including technology from the Russian SS-4 Sandal missile, was confirmed by an American spy satellite in August 1997.
On December 15, 1997, SHIG conducted at least a sixth 1997 test of an engine needed for a 800-mile-range (1,300 km) ballistic missile. The test was either the sixth or the eighth during 1997 according to available intelligence. It is reported the Russian Central Aerohydrodynamic Institute [TSAGI] contracted in early 1997 to build a wind tunnel at SHIG, for both Iranian and Russian missile designers to refine the Shahab-3 missile.
In early October 2014, the New York Times reported on sabotage concerns arising from a blast that took place at the site.
In July 2015, there were claims that there was activity in the military complex associated with nuclear weapons, but the mission for Iran in the United Nations stated that there is no nuclear weapon production on the site and that the reactivation is a misconception caused by road reconstruction opposite the Mamloo Dam, near the Parchin Military Complex.  Mohammad Javad Zarif claimed that the Institute for Science and International Security's analysis of satellite imagery was lies.
- Kuh-e Bagh-e-Melli Kukh-e-Barjamali Shahid Hemat Industrial Group
- Timeline of Iran's Nuclear Activities
- Implementation of the NPT Safeguards Agreement in the Islamic Republic of Iran
- Parchin - Nuclear Site
- "Iran nuclear: Israel's Netanyahu warns on attack timing". BBC News. 9 March 2012. Retrieved 2012-03-09.
- "Iran Urged To Open Parchin Army Site For International Inspectors". Huffington Post. Reuters. 9 March 2012. Retrieved 2012-03-09.
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- Group Sees Sign of Iran Cleanup at Nuclear Site May 9, 2012 New York Times
- "Iran rejects as 'lies' accusations about suspicious work at Parchin military site". www.jpost.com (REUTERS). 8 August 2015. Retrieved 10 August 2015.
- Timeline of Iran's Nuclear Activities – The Iran Primer.