Damghan is said to be Iran's primary chemical weapons production facility, along with the facilities located at Esfahan, Parchin and Qazvin. However, other sources conclude that claims that Iran had chemical weapons plants at Damghan and Parchin that began operation as early as March 1988 are of uncertain reliability. Iran continues to upgrade and expand its chemical warfare production infrastructure and munitions arsenal, which includes blister, blood, choking agents, and nerve agents. Iran is estimated to have an inventory of several thousand tons of various agents, including sulfur mustard, phosgene, and cyanide agents, with a total production capacity is estimated at as much as 1000 tons a year. Iran continues to upgrade and expand its chemical warfare production infrastructure and munitions arsenal.Damghan is the reported site of a biological weapons laboratory reportedly constructed with Russian assistance.
As of 11 April 2000 Russian 2-meter resolution KVR-1000 imagery coverage was not available via the SPIN-2 service on TerraServer, nor was archived Space Imaging IKONOS 1-meter image of this facility available on the CARTERRA™ Archive.