Iranian Foreign Minister Mohammad Javad Zarif was set to address the World Economic Forum in Davos, Switzerland on Wednesday.
He was expected to give insight into Iran's future foreign policy in a session titled, "Iran in the Region and the World."
Zarif's address comes after Iranian President Hassan Rouhani said Tuesday
that US President-elect Donald Trump can not unilaterally cancel the nuclear deal Tehran signed with world powers, including Washington, and that talk of renegotiating it was "meaningless."
Trump, who will take office on Friday, has called the July 2015 agreement "the worst deal ever negotiated." He has threatened to either scrap the accord or seek a better deal.