Soltaniyeh made the remarks at a press conference in Vienna on Wednesday.
"The Great nation of Iran will not permit anybody to deprive its present and future generation of inalienable right to peaceful nuclear energy, and therefore I can tell you that we will not yield to pressure, sanctions, threats of attack," Soltaniyeh said.
In similar remarks last month, Head of the Atomic Energy Organization of Iran (AEOI) Fereidoun Abbasi underlined Iran's inalienable right to peaceful nuclear technology.
"Fossil fuel will finish in the near future and considering the world's current uranium reserves, nuclear fuel will be sufficient for the next 200 years," Abbasi said at the time.
He noted that the world's big powers want to monopolize nuclear technology for themselves and that is why they want to prevent Iran's progress in this field.
Washington and its Western allies accuse Iran of trying to develop nuclear weapons under the cover of a civilian nuclear program, while they have never presented any corroborative evidence to substantiate their allegations. Iran denies the charges and insists that its nuclear program is for peaceful purposes only.
Tehran stresses that the country has always pursued a civilian path to provide power to the growing number of Iranian population, whose fossil fuel would eventually run dry.
Despite the rules enshrined in the Non-Proliferation Treaty (NPT) entitling every member state, including Iran, to the right of uranium enrichment, Tehran is now under four rounds of UN Security Council sanctions and the western embargos for turning down West's calls to give up its right of uranium enrichment.
Tehran has dismissed West's demands as politically tainted and illogical, stressing that sanctions and pressures merely consolidate Iranians' national resolve to continue the path.
Tehran has repeatedly said that it considers its nuclear case closed as it has come clean of International Atomic Energy Agency (IAEA)'s questions and suspicions about its past nuclear activities.