"I determinedly announce that the (work in) the Arak reactor plant is advancing according to the schedule and without any problem," he was quoted as saying by Mehr.
He denied delays in launching the plant due to some technical problems, saying that "We merely move ahead cautiously due to security considerations, since the enemy wants to cause damage in this reactor. We don't have any technical problems or budget problem."
"All the equipments which are needed for the preparation of the reactor have been purchased from the market," he went on.
According to earlier report of the International Atomic Energy Agency (IAEA), Iran's IR-40 heavy water research reactor, near the central city of Arak, was scheduled to begin operation at the end of 2013.
However, the recent report by the IAEA said that the country had postponed the start-up of the reactor until 2014.
Western countries suspect that the Arak establishments or the uranium enrichment facilities of Iran might be used to produce material for the production of nuclear weapon, the allegations of which have been rejected by the Islamic republic.
About the operation of the country's Bushehr nuclear power plant, Abbasi said that "Currently, final tasks in Bushehr reactor are being carried out and the final tests before the Iranian operator to take over (the responsibility of) the reactor (from the Russians) have been conducted."