The writer is foreign minister of Iran  

In only five meetings over nine weeks, US special envoy Steve Witkoff and I achieved more than I did in four years of nuclear negotiations with the failed Biden administration. We were on the cusp of a historic breakthrough. To address US concerns that Iran may one day divert its peaceful nuclear programme, we held detailed, frank discussions — including on the future of Iranian uranium enrichment. There were several ideas for a win-win solution, put forward by both sides, and by Oman.

Equally important, we also focused on the termination of sanctions and US involvement in wider economic co-operation that constituted a trillion-dollar opportunity. Iran was open to mutually beneficial collaboration that would electrify the Iranian economy and address US President Donald Trump’s priority to revive dying American industries, such as the nuclear energy sector.