Paolo Di Rosa is a Washington, D.C.-based partner in the International Arbitration Group, which he founded and then headed for almost 17 years before stepping down as Chair on January 1, 2024. He has long been recognized as one of the world's leading practitioners of international arbitration. Independent legal review publications such as Chambers, Legal 500 have noted that clients describe Mr. Di Rosa as a "brilliant" and "masterful" attorney with a "first-class reputation" and an “exceptional record of success as counsel,” who “specializes in complex investment arbitration” and is "frequently retained to handle high-value arbitrations across the globe." They have also observed the following: “He boasts an outstanding reputation for his work defending Latin American sovereigns in headline investment treaty arbitration cases”; “'[h]e is, without any doubt in my mind, one of the top players in the world in his field of practice.'" "’Paolo is at the top of his field’"; “[He] is among the most prominent practitioners in the international arbitration field in terms of knowledge, advocacy, team leadership and skills”; “he is one of the best investor-state disputes lawyers I have worked with”; “[h]is reputation precedes him. He is exceedingly knowledgeable, sophisticated, and experienced. His dedication to client service and client work is remarkable.”
"The 'fantastic' Paolo Di Rosa is considered 'one of the most reputable lawyers in the U.S. in investor-State arbitration'"; “Paolo is one of the leaders in investment arbitration with strong knowledge and advocacy skills. His presentations during hearings are invaluable.” “Fully bilingual [English-Spanish] with an outstanding analytical mind, he is, quite simply, as good as it gets.” He is recognized in particular as a “formidable force in investment treaty arbitration” and as “an excellent lawyer and a great strategist.” “He is the first person I would call if I had an investor-state arbitration in Latin America.” Sources also consider Paolo Di Rosa to be “terrific in hearings doing the opening statements or cross-examining a key witness,” and clients highlight his “profound abilities of persuasion and incredible capacity to react to surprises in tribunals.” Sources “revere his work” and are quick to praise his client-handling skills, stressing that he is “highly personable” and “a pleasure to work with.”
He has been recognized as a leading international arbitration practitioner in a wide variety of publications, including Chambers Global, Chambers USA, Chambers Latin America, The Legal 500 US, The Legal 500 Latin America, Best Lawyers in America, "Best of the Best" USA Experts Guide, Who's Who Legal, Super Lawyers, Lexology, and Euromoney's Guide to the World's Leading Experts, amongst others. Notably, he has been ranked in Band 1 of the last seven editions of Chambers Global (Latin America), and Chambers Latin America, and was designated by the Legal 500 Latin America as one of the "Leading Lawyers" in International Arbitration in its last eight editions. Further, he has been selected by Legal 500 US as one of the "Leading Lawyers" in its last 12 editions (in the last four of which he was also chosen as one of a select few "Hall of Fame" lawyers), and is ranked in Band 2 in Chambers USA and Chambers Global (USA). He has also been ranked as a specialist in Public International Law in seven editions of Chambers Global.
Mr. Di Rosa's practice centers on the representation of sovereign States and private sector companies in complex and high-stakes international arbitration, litigation, and public international law matters, including in particular disputes between investors and States under investment treaties. He has especially broad experience with sovereign States, as he has represented or advised in international arbitration and/or litigation matters numerous States throughout the globe, including Bulgaria, Chile, Colombia, Costa Rica, Czech Republic, Dominican Republic, Ecuador, Egypt, Israel, Paraguay, Peru, Slovakia, South Korea, Sri Lanka, Thailand, Türkiye, Uruguay, and Venezuela.
Mr. Di Rosa has had an exceptional track record of success: Over the course of a 34-year legal career, he has achieved an approximately 98% success rate in the final outcome of all litigation and international arbitration cases (following appeals and annulment proceedings, where applicable) in which he has been involved as counsel from the beginning of the case. He has successfully represented clients in disputes worldwide, and in a wide variety of industries and economic sectors, including energy, renewable resources, oil and gas, mining, banking and finance, transportation, fisheries, real estate, and media.
Aside from his work in international arbitration matters, Mr. Di Rosa has also served as counsel in litigation cases before U.S. federal courts, including notably in the successful defense of the Republic of Colombia in twin claims for $17 billion in Washington, D.C. federal courts filed by the U.S. company Sea Search Armada, relating to the Spanish treasure ship San José (sunk by the British Navy off the cost of Cartagena, Colombia in 1708).
Mr. Di Rosa likewise serves as arbitrator. Notably, in February 2016, President Barack Obama designated him as one of the four U.S. members of the ICSID Panel of Arbitrators. In May 2024, President Joe Biden redesignated him to that panel—an unprecedented decision, as in no prior instance had the same person been appointed to the ICSID Panel by two different U.S. Presidents. He has twice been appointed by the U.S. Government as arbitrator in investment arbitrations under NAFTA. He has also served as arbitrator in international commercial arbitrations, and is on the panel of arbitrators of various arbitral institutions world-wide (e.g., Beijing International Arbitration Center (BAC), Abu Dhabi International Arbitration Centre, Lima Chamber of Commerce Arbitration Center).
Although his practice spans all geographic regions of the globe, his main area of expertise is in legal matters relating to Latin America (acquired both in the private sector and the U.S. federal government). His work in that area is aided by native language skills in Spanish and English, and a fully bicultural background.
Mr. Di Rosa is a frequent speaker at international conferences and seminars, and author of numerous articles and book chapters.
Earlier in his career, Mr. Di Rosa was a senior-level U.S. Government lawyer and a member of the Senior Executive Service of the U.S. Government. As Assistant Legal Adviser for Western Hemisphere Affairs at the U.S. State Department during the Clinton Administration, he headed the office responsible for legal matters pertaining to Latin America and the Caribbean, as well as Canada. During his tenure at the U.S. State Department, Mr. Di Rosa was awarded a Meritorious Honor Award (for his work on the transfer of the Panama Canal by the U.S. to Panama) and a Superior Honor Award (for his work on the negotiation of an anti-terrorism multilateral treaty).
Experience
Concluded Cases
Mr. Di Rosa has successfully represented sovereign States around the globe in investment arbitrations, including the following:
- The Republic of Costa Rica in an investment arbitration brought by José Alejandro Hernández Contreras arising out of the non-renewal by Costa Rica's electricity regulator of a contract with a local telecommunications company, and involving claims of $25 million. In March 2025, the arbitration was terminated at Costa Rica’s request due to deficiencies in the claimant's offer of security for costs. This case is the first reported dismissal under ICSID Arbitration Rule 63(6).
- The Czech Republic in six separate investment arbitrations in the photovoltaic renewable energy sector, filed under bilateral investment treaties and the Energy Charter Treaty, five under the UNCITRAL rules and one ad hoc, by claimants Antaris Solar GMBH and Dr. Michal Göde, Jürgen Wirtgen, Stefan Wirtgen, Gisela Wirtgen and JSW Solar (zwei) GmbH & Co.KG, Photovoltaik Knopf Betriebs GmbH, Voltaic Network GmbH, WA Investments–Europa Nova Ltd., and I.C.W. Europe Investments Limited, respectively. All claims against our client were fully dismissed, and in addition our client was awarded partial arbitral costs and legal fees in five of the six cases.
- The Republic of Chile in an investment arbitration filed at ICSID by Carlos Ríos and Francisco Ríos under the Colombia - Chile Free Trade Agreement, involving a dispute in the transportation sector and claims of more than $300 million. Tribunal fully dismissed the single claim against our client, and our client was awarded 100% of its arbitration costs and 40% of legal fees and expenses.
- The Republic of Bulgaria in an investment arbitration filed at ICSID by the State General Reserve Fund (SGRF) of the Sultanate of Oman under a bilateral investment treaty, involving a dispute in the banking sector and claims of $88 million. All claims against our client were fully dismissed, and our client was awarded 100% of its arbitral costs and 100% of its legal fees and expenses.
- The Republic of Costa Rica in an investment arbitration filed at ICSID by the Canadian mining company Infinito Industries pursuant to a bilateral investment treaty, involving a dispute in the gold mining sector and claims of $400 million. Complete dismissal of all but one claims. The tribunal did not award any compensation to the claimant.
- The Republic of Costa Rica in an investment arbitration filed at ICSID arbitration filed by the Spanish company Supervisión y Control S.A. pursuant to a bilateral investment treaty, involving a dispute in the transportation sector and claims of $345 million. All claims against our client were fully dismissed.
- The Dominican Republic in an investment arbitration filed at ICSID by U.S. claimant Corona Materials Inc. pursuant to the Dominican Republic-Central America Free Trade Agreement (DR-CAFTA), involving a dispute in the mining sector and claims of $100 million. All claims against our client were fully dismissed.
- The Republic of Chile in the longest-running investment arbitration of all time, filed at ICSID by Victor Pey Casado and the President Allende Foundation pursuant to a bilateral investment treaty, involving a dispute in the media sector and initial claims of over $500million. After 22 years of proceedings (of which Mr. Di Rosa was involved in the final 18), the claimants were ultimately awarded zero damages, thereby yielding a successful result for our client.
- The Republic of Korea (South Korea) in an investment arbitration filed at ICSID under bilateral investment treaties by subsidiaries of U.S. private equity fund Lone Star (LSF-KEB Holdings SCA et al.), involving a dispute in the banking sector and claims of $4.4 billion. In an award issued in 2022, the tribunal dismissed all but one of the claims asserted, and granted the claimants less than 5% of the amount claimed.
- The Republic of Chile in a UNCITRAL rules investment arbitration filed by the President Allende Foundation, Victor Pey Casado, and Coral Pey Grebe pursuant to a bilateral investment treaty, involving a dispute in the media sector and claims of $467 million. All claims against our client were fully dismissed, and our client was awarded 100% of its arbitration costs and 80% of its legal fees and expenses.
- The Republic of Peru in a contract-based arbitration filed at ICSID by Hydrika 1 SAC, involving a dispute in the renewable energy sector (hydroelectric). All claims against our client were fully dismissed, and our client was awarded 100% of its arbitration costs and 100% of its legal fees and expenses.
- The Republic of Chile in an investment arbitration filed at ICSID by the Spanish fishing company Sociedad Anónima Eduardo Vieira pursuant to a bilateral investment treaty, involving a dispute in the fisheries sector and claims of $25 million. All claims against our client were fully dismissed.
- The Republic of Colombia in an UNCITRAL rules investment treaty arbitration filed by Alberto, Felipe, and Enrique Carrizosa Gelzis pursuant to the U.S.-Colombia Trade Promotion Agreement, involving a dispute in the financial sector and claims of $320 million. All claims against our clients fully dismissed, and our client was awarded 100% of its arbitration costs and almost 100% of its legal fees and expenses.
- The Republic of Colombia in a separate investment arbitration related to the one above, filed at ICSID by Astrida Benita Carrizosa pursuant to the U.S.-Colombia Trade Promotion Agreement and the Colombia-Switzerland bilateral investment treaty. All claims against our client were fully dismissed, and our client was awarded 100% of its arbitration costs and 50% of its legal fees and expenses.
- The Dominican Republic in an UNCITRAL Rules investment arbitration filed by Michael and Lisa Ballantine pursuant to the DR-CAFTA, involving a dispute in the real estate sector and claims of over $40 million. All claims against our client were fully dismissed.
- The Slovak Republic in an UNCITRAL rules investment arbitration filed by U.S. Steel Global Holdings I B.V. pursuant to a bilateral investment treaty, involving a dispute in the steel sector and claims of $300 million. The claims were ultimately withdrawn.
- The Republic of Peru in an UNCITRAL rules investment treaty arbitration administered by ICSID, filed by Panamericana Televisión pursuant to a bilateral investment treaty. The arbitration involved a dispute in the telecommunications sector, and claims of $637 million. All claims against our client were dismissed, and the arbitral tribunal ordered claimant to reimburse Peru for the majority of its arbitral costs.
- The Republic of Peru in the Hydrikas ICSID arbitration, filed pursuant to concession contracts, involving a dispute in the hydroelectric power sector, and claims of $26 million. All claims were dismissed and the arbitral tribunal ordered the claimants to reimburse Peru for the totality of its arbitral costs as well as of its legal fees and expenses.
- The Republic of Peru in an investment arbitration filed at ICSID by Worth Capital Holdings 27 LLC pursuant to a bilateral investment treaty, involving a dispute in the oil and gas sector, and claims of more than $590 million. The Tribunal ordered discontinuance of the arbitration under ICSID Arbitration Rule 44, after Worth Capital abandoned the case following submission of Peru’s Counter-Memorial on the Merits and Jurisdiction.
- The Republic of Peru in an investment arbitration filed at ICSID by Latam Hydro LLC and Mamacocha S.R.L. under a contract as well as the U.S.-Peru Trade Promotion Agreement, involving a dispute in the hydroelectric power sector. All claims against Peru were dismissed.
- The Republic of Peru in an ad hoc investment arbitration against Raúl Francisco Javier Linares Sanoja, Aram Asset Management, N.V., and Eitresor,S.A.C. pursuant to a bilateral investment treaty, involving a dispute in the mining sector and claims of $65 million. The Claimants withdrew their Request for Arbitration and discontinued the arbitration.
- The Republic of Peru in an investment arbitration filed at ICSID by Upland Oil and Gas LLC pursuant to a bilateral investment treaty, involving a dispute in the oil and gas sector, and claims of $100 million. The proceeding was discontinued by agreement of the parties.
- The Republic of Peru in an investment arbitration filed at ICSID by Kaloti Metals & Logistics, LLC pursuant to a bilateral investment treaty arbitration, involving a dispute in the mining trade sector and claims of over $150 million. All claims against Peru were dismissed, and the arbitral tribunal ordered the claimants to reimburse Peru for the totality of its legal fees and expenses and of its arbitral costs.
- The Republic of Peru in an investment arbitration filed at ICSID by Enel Colombia S.A. (formerly ESSA2 SpA) and Enel Costa Rica CAM S.A. (formerly Enel Green Power Costa Rica S.A.) pursuant to a bilateral investment treaty, involving a dispute in the energy sector. The arbitral tribunal registered the termination of the proceeding pursuant to art. 43(1) of ICSID Arbitration Rules.
- The Republic of Costa Rica in an investment arbitration against José Alejandro Hernández Contreras pursuant to a bilateral investment treaty, involving a dispute in the telecommunications sector and claims of $25 million. Following registration of the claim by ICSID, constitution of the arbitral tribunal, and commencement of the arbitral proceeding, the claimant withdrew all claims.
- The Arab Republic of Egypt in an UNCITRAL rules investment treaty arbitration filed by a Middle Eastern entity. The parties reached a settlement early in the proceeding.
- The Bolivarian Republic of Venezuela in an investment arbitration filed at ICSID by the Dutch company I&I Beheer pursuant to a bilateral investment treaty, involving a dispute in the financial sector and claims of $300 million. The proceeding was discontinued following the withdrawal of claimant's counsel after the first round of written submissions on the merits.
Ongoing Cases
- The Republic of Korea (South Korea) in the annulment proceeding of the Lone Star ICSID arbitration, involving claims of $4.4 billion by subsidiaries of the U.S-based hedge fund Lone Star.
- The Kingdom of Thailand in an UNCITRAL rules investment treaty arbitration filed by Kingsgate Consolidated Ltd., involving a dispute in the mining sector.
- The Republic of Colombia in two separate investment arbitrations filed at ICSID by Glencore International A.G.
- The Republic of Uruguay in two separate investment arbitrations filed at ICSID by foreign investors with respect to a dispute concerning a port terminal project.
- The Republic of Ecuador in an investment arbitration involving a dispute relating to an investment in the oil and gas sector.
- The Republic of Peru in an investment arbitration filed at ICSID by subsidiaries of the Brazilian construction company Odebrecht pursuant to a bilateral investment treaty, involving a dispute in the oil and gas sector and claims of up to $2.65 billion.
- The Republic of Peru in an investment arbitration filed at ICSID by Spanish energy company ENAGÁS S.A. pursuant to a bilateral investment treaty, involving a dispute in the oil and gas sector and claims of more than $500 million.
- The Republic of Peru in a second investment arbitration filed at ICSID by Spanish energy company ENAGÁS S.A. pursuant to a bilateral investment treaty, also involving a dispute in the oil and gas sector.
- The Republic of Peru in an investment arbitration filed at ICSID by Lupaka Gold Corp. pursuant to a bilateral investment treaty arbitration, involving a dispute in the mining sector and claims of over $100 million.
- The Republic of Bulgaria in an investment arbitration filed at ICSID by the Czech energy company ČEZ pursuant to the Energy Charter Treaty, involving a dispute in the power sector.
- The Czech Republic in an UNCITRAL rules investment arbitration pursuant to a bilateral investment treaty and the Energy Charter Treaty, filed by claimant Natland N.V., G.I.H.G. Limited, Natland Group Ltd., and Radiance Energy Holding, involving a dispute in the renewable energy sector (solar) (currently the subject of a set-aside proceeding in Switzerland).
- The Czech Republic in ad hoc investment arbitration filed under a bilateral investment treaty by DiagHuman, administered by the Permanent Court of Arbitration and involving a dispute in the health sector (currently the subject of a resubmission proceeding before the original tribunal as well as of set-aside proceedings in London).
Perspectives
Recognition
International Arbitration: Governmental (Washington, D.C.)
“Paolo Di Rosa … boasts an outstanding reputation for his work defending Latin American sovereigns in headline investment treaty arbitration cases. ‘[He] is among the most prominent practitioners in the international arbitration field in terms of knowledge, advocacy, team leadership and skills.’”
Credentials
Education
- J.D., Harvard Law School, 1991, cum laude
- Editor-in-Chief, Harvard Law School, Harvard Human Rights Law Journal
- B.A., Harvard University, 1987, magna cum laude
Admissions
- District of Columbia
- U.S. Court of Appeals for the District of Columbia Circuit
Government & Military Service
- Senior-level U.S. Government lawyer; Member of Senior Executive Service (SES), U.S. Department of State
- Assistant Legal Adviser for Western Hemisphere Affairs, Office of the Legal Adviser, U.S. Department of State (2000-2002)
- Attorney Adviser, Office of the Legal Adviser, U.S. Department of State (1994-2000)
Activities
- Member, ICSID Panel of Arbitrators (appointed by the United States for two consecutive terms)
- Member, Users Council, Singapore International Arbitration Centre (SIAC)
- Member, ICC Task Force on Arbitration Involving States and State Entities
- Member, London Court of International Arbitration
- Member, Panel of Arbitrators, Abu Dhabi International Arbitration Centre (arbitrateAD)
- Member, Panel of Arbitrators, Beijing Arbitration Commission/Beijing International Arbitration Center (BAC)
- Member, Panel of Arbitrators, Lima Chamber of Commerce International Arbitration Center
- Member, International Arbitration Institute (IAI), Paris, France
- Member, Advisory Committee on Alternative Dispute Resolution, International Law Institute
- Member, Advisory Board, The Institute for Transnational Arbitration (ITA)
- Member, Investment Committee, Latin American Arbitration Association
- Member, Permanent Committee, Latin American Arbitration Conference (CLA)
- Member, District of Columbia Bar Association
- Member, American Bar Association
- Member, American Society of International Law
- Member, Inter-American Bar Association
- Member, International Bar Association
- Member, International Law Association
- President, Chilean American Chamber of Commerce 2005-2008 (Vice-President, 2003-2005; Member of Board of Directors, 2005-2011)
- “Pro bono Lawyer of the Year” Award, International Human Rights Law Group (Washington, D.C.)