Iran sends conciliatory signals to Western leaders in Davos, denying its desire for nuclear weapons and offering talks. However, the UN's nuclear watchdog warns that Iran is enriching uranium to near weapons-grade. IAEA chief Rafael Grossi emphasizes the importance of dialogue between Iran and the US. UN Secretary-General Antonio Guterres calls on Iran to make it clear that it does not aim to develop nuclear weapons. Iranian official Mohammad Javad Zarif dismisses the idea of Tehran seeking nuclear arms and expresses support for talks to improve relations with the West.