"The decree lifts the ban on <…> the transfer of the S-300 air defense systems to the Islamic Republic of Iran outside the boundaries of the Russian Federation with the use of Russian-flagged vessels and aircraft," the press service said.
The $800-million contract to supply Iran with the missile system was signed at the end of 2007. Moscow was to supply five S-300PMU-1 battalions to Tehran.
However, on September 22, 2010, then President Dmitry Medvedev signed a decree cancelling the contract in line with UN Security Council Resolution 1929, which bans supply to Iran of conventional weapons including missiles and missile systems, tanks, attack helicopters, warplanes and ships.
Iran’s Defense Ministry and The Aerospace Industries Organization responded by launching a $4-billion lawsuit against Rosoboronexport in an international arbitration court in Geneva in April 2011.