Iran's Defense Minister Brigadier General Ahmad Vahidi says Iran is to unveil its new domestic submarines next month, Press TV reported.
Vahidi said the submarines are totally made in the country and will be delivered to Iran's Navy by mid-August.
Asked about the Russian S-300 defense system deal, Vahidi said the deal is not cancelled and Tehran is seriously following up on the issue through negotiations.
Under a contract signed in 2005, Russia was required to provide Iran with at least five S-300 air-defense systems. However, Moscow has continually delayed the delivery of the sophisticated defense system prompting Tehran to express displeasure with the Russian procrastination.
Concerning the sanctions against the country, Vahidi also said: "Sanctions had no effect on our activities".
On June 9, the UN Security Council adopted a resolution imposing a fourth round of sanctions on Iran over its nuclear program.
Tehran rejects Western accusations that it is seeking to develop nuclear weapons, arguing that the International Atomic Energy Agency in its reports has confirmed the non-diversion of nuclear material in Iran.