Guillermo Aguilar-Alvarez was a partner in King & Spalding's International Arbitration Group and is resident in the New York office. He concentrated his practice in international commercial and investment arbitration and handled arbitration procedures under the rules of the International Court of Arbitration of the ICC, the AAA, the London Court of International Arbitration, ICSID, the Arbitration Institute of the Stockholm Chamber of Commerce, the Netherlands Arbitration Institute, the Inter American Commercial Arbitration Commission and UNCITRAL. Mr. Aguilar-Alvarez has also represented investors in investment disputes arising under Chapter 11 of the North American Free Trade Agreement, and other bilateral investment treaties.

Mr. Aguilar-Alvarez served as Principal Legal Counsel for the government of Mexico for the negotiation and implementation of the North American Free Trade (NAFTA) and free trade agreements with Costa Rica, Bolivia, Colombia and Venezuela. Previously, Mr. Aguilar-Alvarez was Counsel and General Counsel of the ICC International Court of Arbitration. Mr. Aguilar-Alvarez is a Visiting Lecturer in Law at the Yale Law School since 2005.