Tehran signed a deal with an American company to export its excess heavy water supplies to US, Head of Iran's Foreign Ministry Headquarters to Monitor Joint Comprehensive Plan of Action (JCPOA) Abbas Araqchi said .
Araqchi, who is in Vienna to attend talks with the EU on formula for the third Iran-G5+1 joint commission meeting, said the Iranian delegation had signed the deal with a US company..
It was three months that Iran was negotiating a commercial contract and finally today, the Iranian delegation singed a deal to sell as much as 32 tons of Iran's excess heavy water supplies to a US company, he underlined.
Araqchi added that some other countries have voiced interest to buy heavy water from Iran.
Iran is negotiating with some other sides for export of heavy water, the deputy foreign minister noted.
Export of heavy water supplies to the US is a major step for Iran which is expected to take the country toward commercialization of its nuclear energy program.