Ofilio J. Mayorga

Representative Experience

Litigation Before the International Court of Justice

• Appeal Relating to the Jurisdiction of the ICAO Council under Article 84 of the Convention on International Civil Aviation (Bahrain, Egypt, Saudi Arabia and United Arab Emirates v. Qatar) & Appeal Relating to the Jurisdiction of the ICAO Council under Article II, Section 2, of the 1944 International Air Services Transit Agreement (Bahrain, Egypt and United Arab Emirates v. Qatar). Represents the State of Qatar in proceedings before the International Court of Justice constituting appeals against decisions as to the jurisdiction and competence of the ICAO Council.
• Application of the International Convention on the Elimination of All Forms of Racial Discrimination (Qatar v. UAE). Represents the State of Qatar in this proceeding before the International Court of Justice arising from breaches of the ICERD by the UAE.
• Case Concerning Construction of a Road in Costa Rica along the San Juan River (Nicaragua v. Costa Rica). Represented Nicaragua in a dispute against Costa Rica before the ICJ regarding environmental and other damage suffered by Nicaragua as a result of Costa Rica’s construction of a road along the southern bank of the San Juan River and other irresponsible land use. 
• Case Concerning Certain Activities Carried Out by Nicaragua in the Border Area (Costa Rica v. Nicaragua). Represented Nicaragua in a dispute bought before the ICJ by Costa Rica regarding issues of territorial sovereignty and alleged breaches of environmental law in relation to Nicaragua’s environmental permitting and execution of a project to dredge the lower stretches of the San Juan River to ensure its navigability by small vessels.

Investor-State Treaty Arbitration Cases

• Louis Dreyfus Armateurs SAS v. Republic of India. Represents India in a UNCITRAL Arbitration under the France-India bilateral investment treaty arising from a contract concerning the supply and operation of cargo handling equipment.
• Italba Corporation v. Oriental Republic of Uruguay. Counsel to Uruguay in an ICSID arbitration under the US - Uruguay bilateral investment treaty concerning the regulation of claimant’s telecommunications permit.
• Rusoro Mining Limited v. The Bolivarian Republic of Venezuela. Represented Venezuela in a US$3.03 Billion claim brought by a Canadian gold mining company in an ICSID Additional Facility arbitration concerning the nationalization of the company's assets.
• Merck Sharp & Dohme (I.A.) v. The Republic of Ecuador. Represents the Republic of Ecuador in an UNCITRAL arbitration under the Ecuador - U.S. bilateral investment treaty arising from the alleged treatment of a foreign investor by the Ecuadorean judiciary.
• Murphy Exploration & Production Company-International v. The Republic of Ecuador. Represents the Republic of Ecuador in an UNCITRAL arbitration under the Ecuador – U.S. bilateral investment treaty arising from changes in domestic legislation pertaining to the exploitation of oil resources in Ecuador.
• Valores Mundiales, S.L. and Consorcio Andino, S.L. v. Bolivarian Republic of Venezuela, ICSID Case No. ARB/13/11. Representing Venezuela in an ICSID arbitration concerning regulations in the food production sector.

International Commercial Arbitration

• Metro de Lima Línea 2 S.A. v. Republic of Peru (ICSID Case No. ARB/17/3). Defending Peru in an ICSID arbitration arising out of a concession contract for the construction of line 2 of Metro de Lima.

International Advisory Matters

• Advised a Latin American nation on the renegotiation of its bilateral investment treaties.
• Advised an International Humanitarian Organization on the protection of hospitals in armed conflicts.

Professional Experience

• Guest Lecturer, Harvard Humanitarian Initiative (2012- 2016) 
• Interned in the United Nations Office of Legal Affairs (2008)
• Teaching Fellow in International Law, Tufts University Political Science Department (2008-2009)
• Lecturer in International Arbitration, Universidad Americana (2010-2011)