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This content is provided by Yas Banifatemi.

Practice Areas

Recognized as one of the most prominent international arbitration and public international law specialists worldwide. She advises and represents States, State-owned entities and companies on both public international law and international arbitration issues.

Public international law: focus on State responsibility, law of treaties, State contracts, sovereign immunities, law of the sea.

International arbitration (counsel and arbitrator): focus on investment arbitration, oil & gas, business combinations and general commercial matters.


Shearman & Sterling (1997-) Head of the Public International Law practice, Co-Head of the International Arbitration practice, Co-Leader of the Energy practice.

Visiting Lecturer in Law, Yale Law School and Harvard Law School; Lecturer (International Investment Law), Panthéon-Sorbonne University; Lecturer, The Hague Academy of International Law, Private International Law Session (Summer 2019).

Professional Memberships

Vice-President, ICC International Court of Arbitration. Member, LCIA Court and SIAC Court of Arbitration. Member, ICSID Panel of Arbitrators (appointed by the Chairman of ICSID’s Administrative Council), HKIAC, SHIAC and CIETAC panels of arbitrators. Member, IAI, CFA, LCIA, ASA, ASIL, ESIL and SFDI.


Numerous publications on international arbitration and international law.


Paris II University, PhD (International Law), 1997; Harvard Law School, LLM, 1997.