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Weisburg, Henry

Henry Weisburg


Henry Weisburg’s international arbitration and international litigation practice focuses on the resolution of cross-border financial disputes arising out of investment, project and joint venture disputes, expropriations, banking insolvencies, sovereign debt restructurings and similar matters.

Henry Weisburg represents clients in international arbitrations in proceedings administered by many different bodies, including the International Court of Arbitration of the International Chamber of Commerce, the International Centre for Settlement of Investment Disputes, the American Arbitration Association and the London Court of International Arbitration, as well as in ad hoc proceedings. In addition, he regularly appears in domestic courts with respect to issues such as the construction and enforcement of arbitration clauses, arbitral awards and foreign judgments, sovereign immunity issues and matters involving torts under international law. He also acts as arbitrator.

Henry Weisburg was selected as 2012 Global Lawyer of the Year by The American Lawyer (27 December 2012). He has been praised by clients and peers in leading directories as “tremendously smart,” a “hugely experienced and very impressive” lawyer with an “electric intellect” and who “always has his strategy clearly defined” and is “excellent at preparing a case.”

Selected Experience

  • Representation of the Republic of Panama as Respondent in an ICSID arbitration brought by Omega Engineering LLC and Mr. Oscar Rivera (ICSID Case No. ARB/16/42). The dispute relates to infrastructure construction projects. The claims are brought under both the US-Panama bilateral investment treaty and trade promotion agreement.
  • Representation of The Dow Chemical Company in winning the largest ICC arbitration award ever (US$2.5 billion), against a Kuwaiti state-owned company arising out of a failed petrochemicals joint venture. Shearman & Sterling was awarded The American Lawyer’s Grand Prize for Global Dispute of the Year (2013) for its conduct of this case.
  • Representation of an international joint venture as Respondent and Counterclaimant and in an ICDR arbitration in New York initiated by a North Asian company. The dispute arose from an agreement for the construction of a chemical plant in North America. Issues included delay and defective works. New York law applied.


  • New York University School of Law, J.D., 1977
  • Trinity College, B.A., 1973


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