Member of board of directors of Social Council of Russian Defense Ministry and a well-known military expert said delivering S-300 missile system to Iran is possible. Igor Korotchenko, in a round table meeting in Ria-Novesti on Tuesday, said that Russia has the right to reverse prohibition of selling S-300 system to Iran, because the sale is not included in the UN Security Council resolution. He said that Russia can revise its decision about sale of S-300 system to Iran and Moscow will take decision upon its own national interests and the outlook of exporting weapons to Iran. Korotchenko, who heads Russian world arsenal trade center, added that S-300 system is not included in the UN Security Council sanction and the US State Department had already confirmed the reality and that Russia, which had imposed sanction to sell the weapons to Iran, is able to reverse the decision, too. He said that voluntary cancellation of sanctions of selling S-300 system to Iran is an internal issue, but it is clear that until May 2012, when the new president takes office in Moscow, it runs upon current policy. Iran signed an agreement with Russia to buy S-300 system in 2005, but two years ago, President Medvedev prohibited delivering the missile system to Iran.