Ivanov said an unspecified number of TOR-M1 systems have been supplied in keeping with the two governments' contract.
He added that Iran is not under sanctions preventing it from acquiring defensive equipment.
Iran is under UN sanctions banning it from acquiring nuclear-related technology and materials.
The air-defense deal with Russia has drawn criticism from the United States.
Russian Arms Exports
Russia's advanced S-300 air-defense system (epa file photo)
BOOM TIMES: In 2005, Russia sold more than $6 billion in weapons to more than 60 countries around the world. The state arms exporter says it has $17 billion in orders in hand....(more)