A Syrian delegation was currently in the Russian capital to sort out the contract details, he said.
Russia, a staunch ally of Damascus and its main arms supplier, has defended its delivery of weapons to the conflict-torn country.
President Bashar al-Assad, in an interview broadcast in Lebanon Thursday, said Syria had taken delivery of the first batch of advanced anti-aircraft missiles from Russia.
Officials from Russia, the United States and the United Nations are to meet in Geneva on Wednesday to discuss a planned international conference on peace in Syria.
Syria`s opposition coalition said it will not take part in the talks in June, citing "massacres" in Syria.
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