Here is a report from an iranian source.

TEHRAN, Mar. 7 (MNA) --
Iranian experts have gained access to the strategic stealth technology which is only accessed by a few developed
countries in the world.
Stealth technology covers a range of techniques used with aircraft, ships and missiles, in order to make them less visible (ideally invisible) to
radar and other detection methods.
Iran is currently constructing the biggest L band test room in the Middle East in order to conduct further studies in this regard.
www.mehrnews.ir...
Dunno how true this is, however it is interesting that the article reads
"has gained acess to" stealth technologies rather than "
has
developed" the same.
Wonder if this is related to this :

An engineer who calls himself the father of the technology that protects the B-2 stealth bomber from heat-seeking missiles has been arrested and
accused of selling U.S. military secrets involving the aircraft to a foreign country, the FBI said. Noshir S. Gowadia, 61, of Haiku was arrested
Wednesday.
According to the FBI, Gowadia in 2002 faxed a document detailing infrared technology classified top secret by the Air Force to a foreign official. He
also provided classified information to
two other countries, the FBI said.
Gowadia was an engineer with Northrop Grumman Corp. from 1968 to 1986 and had helped design parts of the B-2's systems that make the bomber difficult
to be seen by the enemy. The technology remains highly classified.
Full article >>
link
One of the nations is said to be
China, so is the other Iran ?