According to what a supply instructed the Jerusalem Post, citing Israeli sources, and the Israeli newspaper Ynet, he’s the president of the Iranian Parliament, Mohammad-Bagher Ghalibaf who’s main talks with the United States for an settlement to finish hostilities.
Ynet studies that the negotiations are carried out primarily not directly so it’s not clear whether or not the Americans have direct contact with Ghalibaf whereas the American newspaper Axios writes that the US envoys, Steve Witkoff and Jared Kushner, are negotiating with Ghalibaf.
Again Axios, with Barak Ravid on
Who is Mohammad-Bagher Ghalibaf
Born on 23 August 1961 (age 64) in Torqabeh in Iran (jap space close to Turkmenistan), he President of Parliament since 28 May 2020.
He boasts a protracted profession:
https://www.ilsole24ore.com/art/chi-e-mohammad-bagher-ghalibaf-AIIwiE7B