mariana lozza ok

Mariana Lozza

Mariana Lozza is a distinguished lawyer specializing in public international law and investment arbitration, with over 18 years of experience as counsel in international arbitrations (ICSID, UNCITRAL, and ICC) representing States and State-owned enterprises. Her experience also includes participation in domestic court proceedings across more than ten jurisdictions, including the United States, Spain, the United Kingdom, and France.
For nine years, she led the Argentine defense team in international arbitrations and litigation as National Director and Deputy Director of International Affairs and Disputes at the Treasury Attorney General’s Office of the Argentine Republic.
She is a professor at various universities in Argentina and a frequent speaker at international forums and panels within her field of expertise.
She holds dual Argentine and Italian nationality. As a native Spanish speaker, she is fluent in English and has a basic knowledge of French.

DOWNLOAD CV

Experience

Dechamps International Law (Argentina)

Of counsel, February 2026 – present

Advises and represents State parties in international investment arbitration and commercial arbitration.

ML Arbitration, Buenos Aires (Argentina)

November 2025 – present

Counsel and independent arbitrator.

Treasury Attorney General’s Office of the Argentine Republic, National Department of International Affairs and Controversies, Buenos Aires (Argentina)

National Director, January 2021 to November 2025

National Adjunct Director, April 2013 to July 2017

Counsel, July 2007 to March 2013

As Director and Deputy Director, she led the Argentine Republic’s defense team in international investment arbitration proceedings brought by foreign investors before ICSID, the Permanent Court of Arbitration (under UNCITRAL Rules) and the ICC International Court of Arbitration. She was also responsible for supervising Argentina’s defense in foreign domestic court proceedings (in the United States, the United Kingdom, France, Spain, the Netherlands, Germany, Belgium, Luxembourg, Ireland, Switzerland, Cyprus, Canada, Australia and Japan) relating to sovereign debt, the recognition and enforcement of arbitral awards and foreign judgements, and the annulment of awards. She was also involved in negotiating bilateral investment treaties and free trade agreements, as well as in the discussions of the working documents of UNCITRAL Working Group III.

DLA Piper, Buenos Aires (Argentina)

Partner, May 2019 to December 2020

Head of Regional Practice in Latin America, April 2019 to December 2020

Head of international arbitration team on investment and commercial disputes in the Buenos Aires office. Represented State parties in international arbitrations.

Guglielmino & Asociados (G&A), Buenos Aires (Argentina)

Senior Counsel, August 2017 to April 2019

Leading counsel team in international arbitrations (ICSID, Additional Facilities and UNCITRAL); advised State parties on different international law matters.

GST LLP, Buenos Aires (Argentina)

Of Counsel, August 2017 to June 2018

Represented State parties in international arbitrations (ICSID, Additional Facilities and UNCITRAL) as well as execution and enforcement proceedings before US courts.

Administrative Tribunal of the Organization of American States, Washington, D.C. (USA)

Attorney, October 2005 to May 2007

Assessed Parties presentations before the Tribunal. Drafted reports requested by the Tribunal on different legal matters related to the Organization, its labor laws and domestic labor laws. Elaborated annual session reports. Assisted the Tribunal during hearings and the President of the Tribunal during his/her remarks before the Permanent Council. Kept updated the Tribunal’s database.

Trial Court Secretariat, Department of Bahía Blanca, Buenos Aires, Bahía Blanca (Argentina)

Junior Law Clerk, August 2004 – January 2005

Intern, August 2002 – August 2004

Drafted interlocutory and procedural judicial orders.

Academic Experience

  • Foreign investment, law and dispute settlement mechanism, Law School, Torcuato Di Tella University (UTDT), 2025–present, Professor
  • Contractual arbitration involving State parties and arbitration under RIGI, Master in Administrative Law and Public Administration, Law School, University of Buenos Aires, 2025–present, Professor
  • Dispute Settlement Mechanisms and Contractual Framework, Master in Administrative Law and Public Administration, Law School, University of Buenos Aires, 2018–present, Professor
  • PPPA and Arbitration, Law School, University of Buenos Aires, 2018–present, Professor
  • International Law, Law School, University of Buenos Aires, 2013–present, Professor in Charge of Assignment (since 2017 appointed by call for application); 2008–2013, Teaching Assistant
  • Negotiation and Arbitration, Law School, University of Argentine Chamber of Commerce and Services, 2018–2019, Associated Professor
  • Investment Arbitration, Law School, University of Buenos Aires, 2015, Adjunct Professor
  • International Law, Department of Science, Policy, and International Studies, UTDT, 2010–2013, Assistant Professor
  • International Law, Department of Law and Social Science, University of Argentine Enterprise, 2009, Teaching Assistant

Cases

I. INVESTMENT ARBITRATIONS (ICSID, UNCITRAL and ICSID Additional Facility)
  1. Orazul International España Holdings S.L. v. Argentine Republic, ICSID Case No. ARB/19/25: represented the Argentine Republic in an ICSID arbitration brought by a Spanish company against Argentina under the Argentina-Spain BIT, concerning measures adopted in the energy sector.
  2. AES Corporation v. Argentine Republic, ICSID Case No. ARB/02/17: represented the Argentine Republic in an ICSID arbitration brought by a United States company against Argentina under the Argentina-United States BIT, concerning measures adopted in the power generation sector.
  3. Repsol, S.A. and Repsol Butano, S.A. v. Argentine Republic, ICSID Case No. ARB/12/38: represented the Argentine Republic in an ICSID arbitration brought by two Spanish companies against Argentina under the Argentina-Spain BIT, concerning the expropriation of a shareholding in YPF S.A.
  4. El Paso Energy International Company v. Argentine Republic, ICSID Case No. ARB/03/15: represented the Argentine Republic in an ICSID arbitration brought by a United States company against Argentina under the Argentina-United States BIT, concerning measures adopted in the oil, gas and electricity sectors.
  5. LG&E Energy Corp., LG&E Capital Corp. and LG&E International Inc. v. Argentine Republic, ICSID Case No. ARB/02/1: represented the Argentine Republic in an ICSID arbitration brought by United States companies against Argentina under the Argentina-United States BIT, concerning measures adopted in the oil and gas sector.
  6. Total S.A. v. Argentine Republic, ICSID Case No. ARB/04/1: represented the Argentine Republic in an ICSID arbitration brought by a French company against Argentina under the Argentina-France BIT, concerning measures adopted in the oil, gas and electricity sectors.
  7. Mobil Exploration and Development Inc. Suc. Argentina and Mobil Argentina S.A. v. Argentine Republic, ICSID Case No. ARB/04/16: represented the Argentine Republic in an ICSID arbitration brought by United States companies against Argentina under the Argentina-United States BIT, concerning measures adopted in the oil and gas sector.
  8. Abaclat and others (formerly Giovanna Beccara and others) v. Argentine Republic, ICSID Case No. ARB/07/5: represented the Argentine Republic in an ICSID arbitration brought by Italian bondholders against Argentina under the Argentina-Italy BIT, concerning Argentina’s sovereign debt default and public debt restructuring process.
  9. Giovanni Alemanni and others v. Argentine Republic, ICSID Case No. ARB/07/8: represented the Argentine Republic in an ICSID arbitration brought by Italian bondholders against Argentina under the Argentina-Italy BIT, concerning the sovereign debt default and public debt restructuring process.
  10. Ambiente Ufficio S.p.A. and others (formerly Giordano Alpi and others) v. Argentine Republic, ICSID Case No. ARB/08/9: represented the Argentine Republic in an ICSID arbitration brought by Italian bondholders against Argentina under the Argentina-Italy BIT, concerning the sovereign debt default and public debt restructuring process.
  11. Asset Recovery Trust S.A. v. Argentine Republic, ICSID Case No. ARB/05/11: represented the Argentine Republic in an ICSID arbitration brought by a United States company against Argentina under the Argentina-United States BIT, concerning measures adopted in the banking sector.
  12. Daimler Financial Services AG v. Argentine Republic, ICSID Case No. ARB/05/1: represented the Argentine Republic in an ICSID arbitration brought by a German company against Argentina under the Argentina-Germany BIT, concerning measures adopted in the financial sector.
  13. TSA Spectrum de Argentina S.A. v. Argentine Republic, ICSID Case No. ARB/05/5: represented the Argentine Republic in an ICSID arbitration brought by a Netherlands company against Argentina under the Argentina-Netherlands BIT, concerning the rescission of a radio spectrum concession.
  14. Urbaser S.A. and Consorcio de Aguas Bilbao Bizkaia, Bilbao Biskaia Ur Partzuergoa v. Argentine Republic, ICSID Case No. ARB/07/26: represented the Argentine Republic in an ICSID arbitration brought by Spanish companies against Argentina under the Argentina-Spain BIT, concerning measures adopted in the water and sewage sector.
  15. Abertis Infraestructuras, S.A. v. Argentine Republic, ICSID Case No. ARB/15/48: represented the Argentine Republic in an ICSID arbitration brought by a Spanish company against Argentina under the Argentina-Spain BIT, concerning the renegotiation of a public works concession contract in the toll road infrastructure sector.
  16. Abertis Infraestructuras, S.A. v. Argentine Republic, ICSID Case No. ARB/23/39: represented the Argentine Republic in an ICSID arbitration brought by a Spanish company against Argentina under the Argentina-Spain BIT, concerning alleged breaches and the nullification of a contractual renegotiation agreement in the toll road infrastructure sector.
  17. BA Desarrollos LLC v. Argentine Republic, ICSID Case No. ARB/23/32: represented the Argentine Republic in an ICSID arbitration brought by a United States company against Argentina under the Argentina-United States BIT, concerning a real estate transaction and the alleged failure to execute a purchase and sale agreement.
  18. Continental Casualty Company v. Argentine Republic, ICSID Case No. ARB/03/9: represented the Argentine Republic in an ICSID arbitration brought by a United States company against Argentina under the Argentina-United States BIT, concerning measures adopted in the financial sector in connection with Argentina’s 2001-2002 economic emergency.
  19. MetLife, Inc. and others v. Argentine Republic, ICSID Case No. ARB/17/17: represented the Argentine Republic in an ICSID arbitration brought by United States companies against Argentina under the Argentina-United States BIT, concerning measures adopted in the pension and retirement fund management sector.
  20. Nationale-Nederlanden Holdinvest B.V. and others v. Argentine Republic, ICSID Case No. ARB/19/11: represented the Argentine Republic in an ICSID arbitration brought by Dutch companies against Argentina under the Argentina-Netherlands BIT, concerning measures adopted in the pension and retirement fund management sector.
  21. ICS Inspection and Control Services Limited v. Argentine Republic, UNCITRAL, PCA Case No. 2010-9: represented the Argentine Republic in a UNCITRAL arbitration brought by a United Kingdom company against Argentina under the Argentina-United Kingdom BIT, concerning measures adopted in the customs inspection sector.
  22. ICS Inspection and Control Services Limited v. Argentine Republic, UNCITRAL, PCA Case No. 2015-12: represented the Argentine Republic in a re-litigated UNCITRAL arbitration brought by a United Kingdom company against Argentina under the Argentina-United Kingdom BIT, concerning measures adopted in the customs inspection sector.
  23. Hochtief Aktiengesellschaft v. Argentine Republic, ICSID Case No. ARB/07/31: represented the Argentine Republic in an ICSID arbitration brought by a German company against Argentina under the Argentina-Germany BIT, concerning measures adopted in the infrastructure sector in connection with Argentina’s 2001-2002 economic emergency.
  24. Salini Webuild S.p.A. (formerly Salini Impregilo S.p.A.) v. Argentine Republic, ICSID Case No. ARB/15/39: represented the Argentine Republic in an ICSID arbitration brought by an Italian company against Argentina under the Argentina-Italy BIT, concerning measures adopted in the infrastructure sector in connection with Argentina’s 2001-2002 economic emergency.
  25. Teinver S.A., Transportes de Cercanías S.A. and Autobuses Urbanos del Sur S.A. v. Argentine Republic, ICSID Case No. ARB/09/1: represented the Argentine Republic in an ICSID arbitration brought by Spanish companies against Argentina under the Argentina-Spain BIT, concerning the nationalization of Argentine commercial airline companies.
  26. Azurix Corp. v. Argentine Republic, ICSID Case No. ARB/01/12: represented the Argentine Republic in an ICSID arbitration brought by a United States company against Argentina under the Argentina-United States BIT, concerning the termination of a water and sewage concession contract in the province of Buenos Aires.
  27. SAUR International v. Argentine Republic, ICSID Case No. ARB/04/4: represented the Argentine Republic in an ICSID arbitration brought by a French company against Argentina under the Argentina-France BIT, concerning measures adopted in the water and sewage sector in the province of Mendoza in connection with Argentina’s 2001-2002 economic emergency.
  28. Casinos Austria International GmbH and Casinos Austria Aktiengesellschaft v. Argentine Republic, ICSID Case No. ARB/14/32: represented the Argentine Republic in an ICSID arbitration brought by Austrian companies against Argentina under the Argentina-Austria BIT, concerning the termination of an entertainment and gaming license in the province of Salta.
  29. AWG Group Ltd. v. Argentine Republic, UNCITRAL: represented the Argentine Republic in a UNCITRAL arbitration brought by a United Kingdom company against Argentina under the Argentina-United Kingdom BIT, concerning measures adopted in the water and sewage sector in connection with Argentina’s 2001-2002 economic emergency.
  30. British Gas Group v. Argentine Republic, UNCITRAL: represented the Argentine Republic in a UNCITRAL arbitration brought by a United Kingdom company against Argentina under the Argentina-United Kingdom BIT, concerning measures adopted in the natural gas sector in connection with Argentina’s 2001-2002 economic emergency.
  31. EDF International S.A., SAUR International S.A. and León Participaciones Argentinas S.A. v. Argentine Republic, ICSID Case No. ARB/03/23: represented the Argentine Republic in an ICSID arbitration brought by French and Luxembourg companies against Argentina under the Argentina-France and Argentina-Luxembourg BITs, concerning measures adopted in the energy sector in connection with Argentina’s 2001-2002 economic emergency.
  32. Impregilo S.p.A. v. Argentine Republic, ICSID Case No. ARB/07/17: represented the Argentine Republic in an ICSID arbitration brought by an Italian company against Argentina under the Argentina-Italy BIT, concerning measures adopted in the water and sewage sector in connection with Argentina’s 2001-2002 economic emergency.
  33. National Grid plc v. Argentine Republic, UNCITRAL: represented the Argentine Republic in a UNCITRAL arbitration brought by a United Kingdom company against Argentina under the Argentina-United Kingdom BIT, concerning measures adopted in the electricity and gas sector in connection with Argentina’s 2001-2002 economic emergency.
  34. Suez, Sociedad General de Aguas de Barcelona S.A. and Vivendi Universal S.A. v. Argentine Republic, ICSID Case No. ARB/03/19: represented the Argentine Republic in an ICSID arbitration brought by Spanish and French companies against Argentina under the Argentina-Spain and Argentina-France BITs, concerning measures adopted in the water sector in connection with Argentina’s 2001-2002 economic emergency.
  35. Suez, Sociedad General de Aguas de Barcelona S.A. and Interagua Servicios Integrales de Agua S.A. v. Argentine Republic, ICSID Case No. ARB/03/17: represented the Argentine Republic in an ICSID arbitration brought by Spanish companies against Argentina under the Argentina-Spain and Argentina-France BITs, concerning measures adopted in the water sector in connection with Argentina’s 2001-2002 economic emergency.
  36. IJM Corporation Berhad v. Argentine Republic, ICSID Case No. ARB/23/52: represented the Argentine Republic in an ICSID arbitration brought by a Malaysian company against Argentina under the Argentina-Malaysia BIT, concerning the alleged nullity of an infrastructure concession contract in the toll road sector.
  37. Blue Bank International Trust (Barbados) Ltd. v. Bolivarian Republic of Venezuela, ICSID Case No. ARB/12/20: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by a Barbadian company against Venezuela under the Venezuela-Barbados BIT, concerning measures adopted in the tourism sector.
  38. Flughafen Zürich A.G. and Gestión e Ingenería IDC S.A. v. Bolivarian Republic of Venezuela, ICSID Case No. ARB/10/19: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by Swiss and Chilean companies against Venezuela under the Venezuela-Switzerland and Venezuela-Chile BITs, concerning measures adopted in the airport infrastructure sector.
  39. Fábrica de Vidrios Los Andes, C.A. and Owens-Illinois de Venezuela, C.A. v. Bolivarian Republic of Venezuela, ICSID Case No. ARB/12/21: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by Dutch-Venezuelan companies against Venezuela under the Venezuela-Netherlands BIT, concerning measures adopted in the glass manufacturing sector.
  40. Longreef Investments A.V.V. and Owens-Illinois de Venezuela, C.A. v. Bolivarian Republic of Venezuela, ICSID Case No. ARB/11/5: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by Dutch-Venezuelan companies against Venezuela under the Venezuela-Netherlands BIT, concerning measures adopted in the food and coffee production sector.
  41. Luis García Armas v. Bolivarian Republic of Venezuela, ICSID Additional Facility, Case No. ARB(AF)/16/1: represented the Bolivarian Republic of Venezuela in an ICSID Additional Facility arbitration brought by a Spanish individual investor against Venezuela under the Venezuela-Spain BIT, concerning measures adopted in the food sector.
  42. Manuel García Armas and others v. Bolivarian Republic of Venezuela, UNCITRAL, PCA Case No. 2016-8: represented the Bolivarian Republic of Venezuela in a UNCITRAL arbitration administered by the PCA, brought by Spanish individual investors against Venezuela under the Venezuela-Spain BIT, concerning measures adopted in the food sector.
  43. OI European Group B.V. v. Bolivarian Republic of Venezuela, ICSID Case No. ARB/11/25: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by a Dutch company against Venezuela under the Venezuela-Netherlands BIT, concerning measures adopted in the glass manufacturing sector.
  44. Tenaris S.A. and Talta – Trading e Marketing Sociedade Unipessoal Lda. v. Bolivarian Republic of Venezuela (Tenaris I), ICSID Case No. ARB/11/26: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by Belgian/Luxembourg and Portuguese companies against Venezuela under the Venezuela-Belgium/Luxembourg and Venezuela-Portugal BITs, concerning measures adopted in the steel production sector.
  45. Tenaris S.A. and Talta – Trading e Marketing Sociedade Unipessoal Lda. v. Bolivarian Republic of Venezuela (Tenaris II), ICSID Case No. ARB/12/23: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by Belgian/Luxembourg and Portuguese companies against Venezuela under the Venezuela-Belgium/Luxembourg and Venezuela-Portugal BITs, concerning measures adopted in the steel production sector.
  46. Vestey Group Ltd. v. Bolivarian Republic of Venezuela, ICSID Case No. ARB/06/4: represented the Bolivarian Republic of Venezuela in an ICSID arbitration brought by a United Kingdom company against Venezuela under the Venezuela-United Kingdom BIT, concerning measures affecting a cattle farming operation extending over hundreds of thousands of hectares.
  47. Karkey Karadeniz Elektrik Üretim A.Ş. v. Islamic Republic of Pakistan, ICSID Case No. ARB/13/1: represented the Islamic Republic of Pakistan in an ICSID arbitration brought by a Turkish company against Pakistan under the Pakistan-Turkey BIT, concerning measures adopted in the electricity generation sector.
  48. Fund for Protection of Investors’ Rights in Foreign States v. Republic of Lithuania, UNCITRAL, PCA Case No. 2019-48: represented the Republic of Lithuania in a UNCITRAL arbitration administered by the PCA, brought by a Russian investment fund against Lithuania under the Lithuania-Russian Federation BIT, concerning measures adopted in the banking sector.
II. COMMERCIAL ARBITRATIONS (ICC, UNCITRAL, AAA/ICDR, and CEMA)
  1. ICC arbitration: represented one of the respondents (a state-owned company) in an ICC arbitration brought by a United States company against the Argentine company and a United Nations specialized agency, concerning a contractual dispute for the purchase and sale of an aircraft in the aeronautical sector.
  2. ICC arbitration: represented the respondent (a state-owned company) in an ICC arbitration brought by another Argentine company, concerning a contractual dispute in the infrastructure sector.
  3. ICC arbitrations (two separate proceedings): represented the Argentine Republic (respondent) in two ICC arbitrations brought by two separate Argentine companies under ICC Rules, concerning disputes in the road transportation concession sector.
  4. CEMA arbitration: arbitrator appointed by defendant in a domestic arbitration between two Argentine companies related to intellectual property rights. Award already issued (2023).
  5. ICDR: sole arbitrator appointed by the parties’ agreement in an international arbitration between a Chinese party and a US party related to service agreement. Awards already issued (2024).
  6. ICDR: sole arbitrator appointed by the parties’ agreement in an international arbitration between a Chinese party and a US party related to service agreement. Awards already issued (2024).
III. DOMESTIC COURT PROCEEDINGS

Mariana Lozza acted as counsel of the Argentine Republic in domestic court proceedings across multiple jurisdictions — including the United States, the United Kingdom, France, Spain, the Netherlands, Germany, Belgium, Luxembourg, Ireland, Switzerland, Cyprus, Canada, Australia and Japan — concerning Argentina’s sovereign debt litigation, the recognition and enforcement of foreign arbitral awards and judgments against the Argentine State, and the annulment of investment arbitration awards.

Among her achievements, a notable highlight is the resounding victory obtained before the New York Court of Appeals, securing the reversal of a lower court judgment against the Argentine Republic for more than US$16 billion in a dispute between the State and a minority shareholders of the national oil company YPF S.A. (“Petersen Energia Inversora S.A.U., et al. v. Argentine Republic, et al”, No. L5-cv-2139 (S.D.N.Y.) and “Eton Park Capital Mgmt., L.P., et al. v. Argentine Republic, et al”, No. L6-cv-8569 (S.D.N.Y.))

Dissertations

  • Moderator and speaker, “¿Cómo racionalizar la exhibición de documentos? – Redfern vs Armesto y otras alquimias” and CLAustro, XVI Conferencia Latinoamericana de Arbitraje (CLA) (7-9 July 2026)
  • Speaker, “Formación del Contrato”, Seminario “Contratos de inversión y arbitraje”, XVI Conferencia Latinoamericana de Arbitraje (CLA) (10 July 2026)
  • Speaker, “La defensa del Estado argentino ante los tribunales extranjeros”, Third Conference Master in Administrative Law, organized by Universidad José C. Paz (29 April 2026)
  • Speaker, “El Caso YPF y una victoria histórica para Argentina: experiencias en la defensa del Estado”, Conference, Universidad Nacional del Sur (27 April 2026)
  • Speaker, Recent trends in Latin American international arbitration, organized by Latin American Association of Attorney General and State Lawyers (ALAP) (29 January 2026)
  • Speaker, The power of the State to terminate PPA on the basis of general interest, 5to. Dominican-French Colloquium on International Arbitration (26 November 2025)
  • Speaker, Emergency arbitration and State defense, International Congress, Arbitration and State, Challenges and Perspectives, organized by State General Attorney of Peru (9 October 2025)
  • Speaker, Meeting with State Lawyers, organized by Latin American Arbitration Conference (CLA) (26 September 2025)
  • Co-speaker, Domestic courts and sovereign immunity: recent developments in US case law, organized by Latin American Integration Association (SLADI) (31 July 2025)
  • Speaker, Retos y perspectivas para sortear los obstáculos que se presentan en la prevención de las controversias de inversión, Taller sobre Prevención y Mitigación de Controversias en Materia de Inversiones, organized by Latin American Integration Association (LAIA) (30 July 2025)
  • Speaker, “Argentina en el Banquillo: “Perspectivas desde el Estado, el inversor y el Derecho Comparado”, Arbitration Day, organized by Mendoza University (23 April 2025)
  • Speaker, Mito y realidad de la autonomía de la voluntad en el arbitraje comercial internacional, ¿Son las partes las dueñas del proceso arbitral? organized by Austral University and SciencesPo Law School (7 June 2024)
  • Speaker, 13th Investment Treaty Arbitration Conference, Panel 3 Code of Conduct for Arbitrators in Investment Arbitration y Panel on State Defense in Investment Cases, organized by Ministry of Finance of the Czech Republic (26 and 27 November 2023)
  • Speaker, El Arbitraje Internacional, Argentine Council for International Relations, organized by Consejo Argentino para las Relaciones Internacionales (CARI) (5 October 2023)
  • Speaker, Jornada de Capacitación, Apuntes sobre las buenas prácticas de los Estados en el manejo de las controversias internacionales de inversionista¸ organized by Attorney General’s Office of the Republic of Honduras (20 April 2023)
  • Speaker, Prevención y Manejo de Disputas Inversionista-Estado, organized by Magistral Bar Association of Panama (14 April 2023)
  • Speaker, Argentina como sede de arbitraje internacional, ICC Argentine Arbitration Day, organized by ICC Argentina (March 2023)
  • Speaker, Jornada Internacional de Arbitraje, La experiencia argentina, organized by CEMA University (UCEMA) Law School, Corte Civil y Mercantil de Arbitraje (CIMA) and Centro Internacional de Arbitraje de Madrid (CIAM) (17 November 2022)
  • Speaker, La problemática de la discriminación racial en los tribunales arbitrales en materia de inversión, Instituto de Investigaciones Jurídicas y Sociales “A. L. Gioja”, organized by University of Buenos Aires Law School (21 March 2022)
  • Speaker, The Future of Investor-State Arbitration in Latin America, organized by Center for the Advancement of the Rule of Law in the Americas of Georgetown University (CAROLA) and University of Los Andes (10 June 2021)
  • Speaker, Conferencia sobre derecho y arbitraje internacional en Latinoamérica, organized by Permanent Court of Arbitration (4 March 2021)
  • Speaker, Ciclo Negociando con Estados No. 2: Solución amistosa de controversias internacionales de inversión y Convención de Singapur sobre Mediación Internacional, organized by University of La Sabana and Corporación Excelencia en la Justicia (29 October 2020)
  • Speaker, El arbitraje de inversión: El derecho de las inversiones extranjeras y su relación con otras ramas del derecho y disciplinas, organized by Observatorio de Arbitraje Internacional y Derecho de las Inversiones Extranjeras University of Buenos Aires (7 October 2020)
  • Moderator, Latin America International Arbitration Webinar Series 2020–2021 | Episode I – 28 U.S.C. § 1782: A sword or a shield in your international dispute, organized by DLA Piper (30 September 2020)
  • Speaker, El Arte de Debatir en el Arbitraje Internacional, II Jornada AYAP de Arbitraje Internacional, organized by Argentina Young Arbitration Practitioners (AYAP) (28 November 2019)
  • Moderator, El arbitraje de inversión: desafíos para América Latina, organized by Observatorio de Arbitraje Internacional y Derecho de las Inversiones Extranjeras University of Buenos Aires (29 July 2020)
  • Speaker, Arbitraje con la Administración Pública en América Latina, Conferencia de Arbitraje y Dispute Boards en América Latina, organized by Centro das Indústrias do Estado de São Paulo (CIESP) y la Federação das Indústrias do Estado de São Paulo (FIESP) (28 September 2019)
  • Speaker, El rol del arbitraje en la organización del procedimiento, Jornadas de Arbitraje Internacional, organized by ICC Argentina and Centro Empresarial de Mediación y Arbitraje (CEMA) (20 May 2019)
  • Speaker, Ejecución de laudos arbitrales de inversión por parte de la Argentina, Jornadas argentino-chinas de derecho comparado, organized by University of Buenos Aires Law School (14 June 2019)
  • Speaker, ¿Es realmente posible anular un laudo CIADI? XI Conferencia Latinoamericana de Arbitraje, organized by Centro de Estudios de Derecho, Economía y Política (CEDEP) (13 May 2019)
  • Speaker, Rol del Árbitro en la Organización del Procedimiento, Jornadas de Arbitraje Comercial, organized by Centro de Mediación y Arbitraje Comercial (CEMARC) (21 May 2019)
  • Moderator, Desarrollos actuales de la noción de trato justo y equitativo, X Congreso Latinoamericano de Arbitraje, organized by Centro de Estudios de Derecho, Economía y Política (CEDEP) (31 May 2018)
  • Speaker, Segundo Taller sobre el Sistema de Solución de Controversias Inversionista-Estado, organized by Centre for International Governance Innovation (CIGI) and Agencia Nacional de Defensa Jurídica del Estado de la República de Colombia (24 November 2017)
  • Speaker, Experiencias de defensa del Estado contra Reclamaciones Internacionales, organized by Agencia Nacional de Defensa Jurídica del Estado de la República de Colombia (23 November 2017)
  • Speaker, El arbitraje de Inversión, Jornadas de Arbitraje Comercial y de Inversión, organized by CCI Argentina y Centro de Mediación y Arbitraje Comercial (CEMARC) (16 May 2017)
  • Speaker, Making the most of the hearing, Young ICCA Arbitration Skills Training Workshop, organized by Young ICCA (4 November 2016)
  • Speaker, Do class arbitrations have a place in international commercial arbitration? organized by ICC YAF North America Regional Conference (10 June 2016)
  • Speaker, Recent Developments in Investment Policy and Dispute Settlement: Sharing of Experiences, Ninth Annual Forum of Developing Investment Negotiators, organized by International Institute for Sustainable Development (IISD) (16-18 November 2015)

Publications

  • Reparaciones no pecuniarias en el arbitraje de inversión in Liber Amicorum Profesor Raúl Emilio Vinuesa (to be published) (2025)
  • Investor-State Dispute Settlement in Argentina (co-authored S. Ramos) in Arbitration in Argentina, Wolters Kluwer (2020)
  • State defences to investment claims arising from COVID-19 (co-authored) available at https://www.dlapiper.com/en/peru/insights/publications/2020/04/state-defences-to-investment-claims-arising-from-covid-19/ (2020)
  • Mecanismos de Solución de Controversias en Materia de Inversión en América Latina: Análisis Comparativo, Liber Amicorum Alejandro Turyn, EUDEBA (2018) (co-authored V. Lavista)
  • Mercosur and CAFTA-DR, International Investment Law (2015) (co-authored G. Bottini and V. Lavista)
  • Las Inmunidades de los Estados Extranjeros (co-authored S. G. Napolitano), Lecciones De Derecho Internacional Público, Ed. ERREPAR (2015)
  • Surgimiento del Estado y Reconocimiento, Lecciones De Derecho Internacional Público, Ed. ERREPAR (2015)

Contact

Buenos Aires – Argentina

+54 9 11 3162 8951

mariana.lozza@mlarbitration.com

 

Linkedin

Powered by
►
Necessary cookies enable essential site features like secure log-ins and consent preference adjustments. They do not store personal data.
None
►
Functional cookies support features like content sharing on social media, collecting feedback, and enabling third-party tools.
None
►
Analytical cookies track visitor interactions, providing insights on metrics like visitor count, bounce rate, and traffic sources.
None
►
Advertisement cookies deliver personalized ads based on your previous visits and analyze the effectiveness of ad campaigns.
None
Powered by