Yas Banifatemi is renowned for her stellar work in the international arbitration arena, and comes highly recommended by peers who state that she is "simply outstanding".
Yas Banifatemi co-heads Shearman & Sterling’s international arbitration practice worldwide. She also leads the firm’s public international law practice and co-heads its energy practice.
Yas acts as counsel in commercial and investment arbitration. Her commercial arbitration experience includes matters related to the oil and gas and energy sectors, mergers and acquisitions, joint ventures, and construction projects. Her investment arbitration experience includes cases brought under contracts and treaties, acting for investors and states.
Holding a PhD in public international law, she advises states, state-owned entities, companies and international organisations on public international law matters involving law of treaties, state contracts, state responsibility, immunities of states and international organisations, international boundaries and law of the sea.
Yas also acts as arbitrator. She is a vice president of the ICC International Court of Arbitration, and a member of the LCIA Court and the SIAC Court of Arbitration. She is also a member of the ICSID panel of arbitrators, appointed by the chairman of ICSID’s Administrative Council.
She has authored numerous publications on international arbitration and public international law. She acts as executive director and coordinator of the New York Convention Guide Project, a research project undertaken with UNCITRAL in relation to the UNCITRAL Secretariat Guide on the Convention on the Recognition and Enforcement of Arbitral Awards.
Yas teaches at Harvard Law School, Yale Law School and Panthéon-Sorbonne University. In 2019, she gave a course at The Hague Academy of International Law on the powers of the arbitrator. She is a founding member and former secretary general of the International Academy for Arbitration Law.
Yas speaks French, English and Farsi.