This was reported on Monday by the official IRNA news agency.
Hassan Rouhani, who met visiting German Economy Minister Sigmar Gabriel, said he hopes Germany plays a "positive role" in improving relations between Iran and the EU, "as it played a positive role in nuclear talks."
Gabriel is heading a delegation of representatives from German companies, one of the first overt signs of a thaw following a deal with world powers over the Islamic Republic's nuclear program.