Three Crowns will host HardTalk Madrid “Disputas en Iberoamérica: Tendencias y tips para una argumentación eficaz” in collaboration with Arbitration Channel, ahead of the Arbitration Open 2024.

Partner Carmen Martínez López will give the opening address, with panels moderated by partner Agustin G. Sanz and associate Borja Pérez-Puente to follow. The event will conclude with a networking and drinks reception.

Agustin will moderate a panel on “Quo vadis Iberoamérica: tendencias en disputas en la region”, featuring guest speakers Silvia Marchili (White & Case), Juan Manuel Marchán (Pérez Bustamante y Ponce), Ana María Legendre (Técnicas Reunidas), and Valeria Galíndez (Galíndez Arb).

Borja will moderate a panel on the topic “Cómo presentar una argumentación convincente: do’s and don’ts”, comprised of Alfredo Bullard (Bullard Falla Ezcurra), Deva Villanúa (Devarb), Rafael Pérez Valencia (Sacyr), and Ana Cecilia Munive, (Bechtel C).

The event will take place on Tuesday 7 May from 4:00 pm to 7:30 pm at Three Crowns’ Madrid office.

To find out more and to register, click here.


Carmen, a partner in the Madrid office, has appeared as advocate in numerous investment treaty and commercial arbitrations. She has handled arbitrations under the rules of the major arbitral institutions and ad hoc across a variety of jurisdictions, with a particular focus on Latin America and Spain. Carmen also sits as arbitrator.

Carmen serves in a variety of leadership positions, including as the President of the British Chapter of the Spanish Arbitration Club (Club Español del Arbitraje), a member of the Arbitrator Appointment Committee of the Madrid Arbitration Court, and a team leader for the IBA Task Force for the Revision of the 2010 IBA Rules on the Taking of Evidence. Carmen writes and speaks regularly on arbitration-related issues.


Agustin is a partner in the Madrid office. He has extensive experience of both international commercial and investment treaty arbitrations involving disputes in a broad range of sectors, including infrastructure and highway concession agreements, oil and gas, energy and power grids, water treatment, technology, public works, sovereign debt, and agribusiness. He also advises sovereigns and international organisations in matters of public international law.

Agustin also has extensive experience advising international clients in connection with local administrative and court proceedings in Latin America, as well as contract renegotiation, settlement, and post-award agreements arising from investment and commercial disputes.


Borja is an associate based in the Madrid office. He has experience acting in international commercial arbitrations under several governing laws and institutional rules in disputes relating to the aerospace, railway, TMT, construction and energy sectors. Borja is a co-founder and member of the steering committee of the Comillas Alumni International Arbitration Club.

Borja holds a double licentiate degree in law and business management from the Universidad Pontificia de Comillas (ICADE), and he is admitted to the Madrid Bar and to the Madrid College of Economists. He has experience handling contentious work in English, Spanish and French and he also has a limited proficiency in Portuguese.

« Back