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Shearman & Sterling LLP

Work +33 1 53 89 70 00

Dr Yas Banifatemi

Work +33 1 53 89 70 00
Shearman & Sterling LLP

Work Department

International Arbitration
Public International Law


Partner and Deputy practice leader in Sherman & Sterling's International Arbitration practice
Head of Shearman & Sterling's Public International Law practice


Yas is widely recognised 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. She acts as counsel and arbitrator in international arbitrations conducted pursuant to a variety of arbitration rules, with particular focus on investment protection, oil & gas and general commercial matters.

Yas teaches International Investment Law at Panthéon-Sorbonne University (Paris I) and is a Visiting Lecturer in Law at Yale Law School. She has authored numerous publications on international arbitration and public international law and participates in leading working groups and think tanks on international arbitration. 


French, English and Farsi


  • Vice-President, ICC International Court of Arbitration (2015–)
  • Member, ICC Commission on Arbitration and ADR (2015–)
  • Member, LCIA Court (2015–)
  • Member, ICSID Panel of Arbitrators (2017–23)
  • Member, HKIAC Panel of Arbitrators (2016–21)
  • Founding member and Co-Secretary-General, International Academy for Arbitration Law (2011–13)
  • Member, Editorial Board, ICSID Review, Foreign Investment Law Journal (2012–2014)
  • Member, Editorial Board, Yearbook on International Investment Law and Policy
  • Chair, Georgian International Arbitration Center (GIAC) Commission for Final Revision of the GIAC Arbitration Rules
  • Member, SCC Rules Revision Committee
  • Member, World Bank’s Investing Across Borders (IAB)
  • Member, ILA Study Group on the Soft Law Instruments in Foreign Investment Law (2008–14)
  • Member, ILA Study Group on the Use of Private Law Principles for the Development of International Law
  • Member, IBA Investment Treaty Sub-Committee
  • Member, IBA Recognition and Enforcement of Arbitral Awards Sub-Committee
  • Member, Advisory Board, Africa International Legal Awareness (AILA)
  • Member, Advisory Board, Association of Young Arbitrators (AYA), Nigeria
  • Expert, joint UNCITRAL-CIDS expert Group meeting on possible reforms of investor-State dispute settlement
  • Member, International Arbitration Institute (IAI), Comité Français de l’Arbitrage (CFA), Swiss Arbitration Association (ASA), London Court of International Arbitration (LCIA)
  • Member, Advisory Board, Institute for Transnational Arbitration (ITA)
  • Member, American Society of International Law (ASIL), European Society of International Law (ESIL) and French Society of International Law (SFDI)


  • Panthéon-Assas University (Paris II), Ph.D. in International Law
  • Harvard Law School, LL.M.


Foreign firms

Within: Leading individuals

Yas Banifatemi - Shearman & Sterling LLP

Within: Foreign firms

Shearman & Sterling LLP’s expertise includes international arbitration, M&A, public international law and project finance, and its clients are typically drawn from the energy and natural resources, construction, infrastructure and telecoms industries. Emmanuel Gaillard, Yas Banifatemi and Coralie Darrigade have been acting for the People’s Democratic Republic of Algeria in an arbitration initiated by EIIC and Société des Parcs d’Alger related to a contract for the development of a park project. Another highlight has been advising Sonatrach in an ICC arbitration initiated by Saipem, concerning an agreement for the construction of an oil and gas facility in North Africa. Maude Lebois and Benjamin Siino are also recommended.

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Dispute resolution: International arbitration

Within: Leading individuals

Yas Banifatemi  - Shearman & Sterling LLP

Within: Dispute resolution: International arbitration

Shearman & Sterling LLP¬†was recently instructed to act in a series of investment and commercial arbitrations for both new and long-established clients, including states and French and international corporations. The 50-lawyer practice remains highly active in high-profile oil and gas, construction and energy matters in relation with North Africa. It is also increasingly visible in cases involving Sub-Saharan Africa, notably on concession issues, and is representing Eastern European states in several matters. Finally, the practice is also dealing with disputes involving the European renewables market and is advising on several matters involving Chinese and Asian parties. Recent highlights include representing Egypt in two long‚Äźterm investment arbitrations relating to gas supply agreements dealing with the export of Egyptian gas to Israel, and Sonatrach in an ICC arbitration brought by Saipem regarding the construction of gas liquefaction facilities. The firm also successfully acted for Croatia in an ICSID arbitration with an Austrian party regarding a food products enterprise, and Lithuania in an ICSID arbitration initiated by Veolia Environnement relating to district heating and power generation. Algeria, Ukraine and Areva are clients. The practice is headed at the global level by the very highly regarded¬†Emmanuel Gaillard.¬†Yas Banifatemi¬†is global head of the firm‚Äôs public international law practice.¬†Coralie Darrigade, Maude Lebois, Mohamed Shelbaya¬†and Jennifer Younan¬†are all up-and-coming members of the team. The Paris hub recently welcomed Jeremy Sharpe from the London office, while newly promoted partner¬†Daniel Reich¬†joined the New York office. Counsel¬†Benjamin Siino¬†also deserves a mention for his expertise in award enforcement procedures.

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Latin America: International firms

International arbitration

Within: International arbitration

Shearman & Sterling LLP handles a broad range of commercial and investment treaty arbitration. In 2017, a team led by Paris-based Emmanuel Gaillard and Yas Banifatemi represented a Mexican company in a dispute under a BIT signed with a European state. Within its network of offices, New York-based Henry Weisburg and Washington DC-based Christopher Ryan and Jonathan Greenblatt are also names to note.

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Legal Developments in France

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to

    The People's Republic of China has initiated an overhaul of its social security system, reformed the personal taxation regime and has extended the scope of these laws to foreigners residing in China.

    The Kingdom of Morocco is supporting the ambition of becoming the leading financial place for Africa. In this context, a wave of draft laws is to be passed and implemented within the following months, amongst which, the Law No. 53.08, setting up a new financial authority, and the Law No. 54.08, reforming public offering rules, are of paramount importance to Moroccan and foreign issuers, and financial institutions.

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