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Home » News Articles » The Convergence of Sustainability and ESG Regulations – Impacts on Arbitration and Investment Treaty Disputes

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Jean-Marie van der Elst

Managing Director
  • jmvanderelst@econone.com
Education

D.B.A.-International Business & Economics, Nathan Bisk College of Business, Florida Institute of Technology, Melbourne, FL. 2019.

SEP- Senior Executive Program, Columbia University, New York. 1996.

M.A.-  International Economics & Corporate Finance, Nelson Mandela University, Port Elizabeth, SA. 1989.

B.A.-Economics & Psychology, University of Cape Town, SA. 1980.

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Marian Portero Collado

Director
  • mportero@econone.com
Education

2024 – 2024 Harvard Business School, Cambridge, MA Sustainable Investing Program

1993 – 1994 London Business School, London. Corporate Finance Program.

1986 – 1988 School of Industrial Organization (EOI), Madrid, Grenoble, Master in Business Administration (MBA).

1981 – 1986 Autonomous University of Madrid, Spain. Degree in Economics and Business Administration.

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Damages Analysis

Rafael Pereyra Lago

Director
  • rpereyralago@econone.com
Education

Instituto de Empresa Business School (IE), Madrid, España - MBA Corporate Finance & Marketing

Universidad Nelson Mandela, Port Elizabeth, Sudáfrica - MSC Marine Biology

Universidad Nelson Mandela, Port Elizabeth, Sudáfrica - BSC (Hons)

Universidad de la República, Montevideo, Uruguay – Lic. Oceanografía

2023 - Present DIRECTOR EconOne Research Inc.

International Arbitration Practice Area: forensic expert in socioeconomic, environmental, financial and economic matters, providing expert analysis and reports on damage valuations.

2018 – 2023 TAS DIRECTOR

Global Investigations and Corporate Finance Practices (LATAM): providing analysis and expert reports on economic, financial and socioeconomic damages. Authored and defended reports and provided expert testimony in international arbitration tribunals. Issues defended include public-private partnership (PPP) mass transit infrastructure projects.

2014-2017 DIRECTOR International Business Development – Ricoh Europe Ltd, London, UK

2011-2014 HEAD of IT and Corporate Cloud Services / Verizon Business, Amsterdam, The Netherlands.

2008-2011 CONSULTING Practice Director, Professional Services / Atos EMEA, London, UK

2007-2008 PRINCIPAL CONSULTANT / Quint Wellington Redwood ME, Riyadh, Abu Dhabi, KSA/UAE

2004-2007 ICT MANAGER / Randstad UK Plc, United Kingdom

2000-2004 PROGRAM MANAGER / Hewlett-Packard EMEA, London, UK

1997-1999 PROJECT MANAGER - EMC2 (Data General UK) Ltd, EMEA IM Group, London, UK

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May 13, 2025

The Convergence of Sustainability and ESG Regulations – Impacts on Arbitration and Investment Treaty Disputes

Econ One, in collaboration with Freeths, is proud to support London International Disputes Week 2025.

Join us for a live session featuring Jean-Marie van der Elst, Marian Portero Collado, and Rafael Pereyra Lago of Econ One, as we examine how the convergence of sustainability goals and ESG regulations is reshaping arbitration and influencing the resolution of investment treaty disputes.

This session will explore the legal, regulatory, and economic dimensions of ESG obligations and their growing role in cross-border dispute resolution. We’ll discuss how these evolving factors are transforming the landscape of investment treaty arbitration—and what they mean for professionals navigating ESG-related risks and compliance.

Event Details
Date: Wednesday, 4 June 2025
Time: 11:00 AM – 12:30 PM
Venue: Freeths LLP, 1 Vine Street, London W1J 0AH
In-person or virtual attendance available

Register Here

Services: International Arbitration
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