UANI

On its company website, Herrenknecht lists that it has three offices in Tehran, Iran. (Company Website)

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Over the past decade, Iran has quietly hidden an increasingly large part of its atomic complex in networks of tunnels and bunkers across the country...

Such tunneling conferences, held regularly in Tehran, draw global manufacturers of tunnel-boring machines — giant devices as big as locomotives that dig quickly through rocky strata...

Many of the companies keep offices in Tehran. Herrenknecht, a German firm considered the market leader, lists three. Engineers say Iran has hundreds of miles of civilian tunneling projects under way, including subways in Tehran, Isfahan, and Shiraz, highway tunnels across the country and water tunnels to irrigate the dry interior. (The New York Times, "Iran Shielding Its Nuclear Efforts in a Maze of Tunnels," 1/6/09)