European should give us enough guarantee that they will purchase Iran's crude oil and also help remove banking problems and restrictions, he said.
Velayati advised the executive officials to launch Uranium hexafluoride (UF6) which can run centrifuges and play key role in nuclear enrichment procedure, he said.
He also called for making use of powerful nuclear engines in ships and submarines.
Such actions will be a proper response for the US violation of the JCPOA treaty, he said.
Iran is determined to maintain its missile power irrespective of the US hue and cry, he said, adding that we have no limits in boosting our nuclear related activities.
The European has already violated their pledges in 2003-2004 and that is why the Supreme Leader warned to avoid such failed experience, he said.
He also believed that Majlis failed to examine the JCPOA properly and comprehensively in the then time.
They even failed to provide us with a Persian text of the JCPOA, he said.
The Islamic Republic of Iran inspires the whole region, underlined Velayati.
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Tehran, May 30, IRNA - Member of the Expediency Council and Supreme Leader's Advisor for International Affairs Ali Akbar Velayati said on Wednesday that talks with Europe should be continued based on the guidelines set by the Supreme Leader and the US should leave the region and let regional countries to make decision on their fate.