8th Dispute Resolution in M&A Transactions International Conference

21 May 2026

Warsaw English
Start: 08.45 (Warsaw time zone) | End: 19:30 (Warsaw time zone)

Join us in Warsaw for the 8th edition of the Dispute Resolution in M&A Transactions International Conference!

Organized by ICC Dispute Resolution Services, ICC Poland and GESSEL Attorneys at law, this biennial international conference is widely recognized for its thought-provoking discussions on the most pressing practical challenges in arbitrating M&A disputes.

Day 1
Day 2

Warsaw Time Zone

08:45-09:45

Registration and morning coffee

09:45-09:55

Opening and welcome

  • Dr hab. Beata Gessel-Kalinowska vel Kalisz, prof. INP PAN, GESSEL, Warsaw; President, ICC Poland
  • Rafał Morek, Vice President, ICC Poland

09:55-10:10

Opening address

  • Claudia Salomon, President, ICC International Court of Arbitration

10:10-11:45

Session I: Hot Topics in M&A Transactions

  • M&A arbitration around the world: what’s making headlines
  • Key developments, emerging trends & risks
  • The most remarkable deals of the past two years

 

Introduction by:

  • Monika Nachyła, Independent Supervisory, Board Member, Investor, Warsaw

Moderated by:

  • Iuliana Iancu, Partner, Hanotiau Tossens Goldman, Brussels

Panellists:

  • Sara Koleilat-Aranjo, Partner, Morgan, Lewis & Bockius LLP, Dubai
  • Dr Anke Sessler, Independent Arbitrator, Sessler Dispute Resolution, Frankfurt

11:45-12:30

Keynote address: Gabrielle Kaufmann-Kohler interviewed by Beata Gessel-Kalinowska vel Kalisz

  • Prof. Gabrielle Kaufmann-Kohler, LKK Arbitration, Geneva

12:30-13:30

Lunch

13:30-13:50

Case study

13:50-14:55

Session II: Experts speak numbers, arbitrators speak law: decoding the language of quantum in M&A disputes by arbitrators

  • The nuances of legal reasoning
  • The rationale of causation principle
  • The art of probabilities in asset /cash flow based valuations

 

Moderator by:

  • Dr hab. Niels Schiersing, LLD, Independent International Arbitrator, Arbitration Chambers, London

Panellists:

  • Diana Akikol, Partner, Walder Wyss Ltd., Geneva
  • Luis Capiel, Partner, Arias SLP, Geneva
  • Emilia Onyema, International Arbitrator, Professor, SOAS University of London, London

14:55-15:30

Coffee break

15:30-16:45

Session III: The hidden ally: state courts’ support in M&A arbitrations

  • Support in witness examination
  • Support in document production
  • The challenges of common law and continental law systems

 

Moderated by:

  • Vladimir Pavic, Professor, University of Belgrade Faculty of Law, Belgrade

Panellists:

  • Piotr Bytnerowicz, Founder, ByArb, Warsaw
  • Mark Pelling KC, International Arbitrator and Judge, DIFC Court, London

16:45-17:05

Case study

17:05-17:15

Closing remarks

19:30

Gala dinner


09:00-09:30

Registration and morning coffee

09:30-09:40

Opening and welcome

09:40-10:00

Session I: Ore - Introduction into Ukraine-United States mineral resources agreement

  • Maria Kostytska, Partner, K&L Gates, Paris

10:00-11:15

Session II: Drill - the technical experts panel

  • The differences between public disclosure (i.e., NI 43-101 and JORC) and valuation (i.e., CIMVAL or VALMIN)
  • The level of study of mining projects
  • Understanding the key technical risks of mining projects (Geological, Geotechnical, Mine Planning, Construction and Mine Startup Timing, Initial and Replacement Capital Costs, Operating Costs, and Market)
  • The pros and cons of site-visits
  • Should all mineral reserves and mineral resources on a mineral property be considered in the valuation of the mineral property?

 

Moderated by:

  • Marcin Kałduński, Counsel, Deputy Director, General Prokuratoria of the Republic of Poland, Warsaw

Panellists:

  • Dennis N. Kostic, President & CEO, Weir International, Inc., Chicago
  • Richard J. Lambert, P.Eng., P.E., President, Lucky Peak Consulting, Boise
  • Ian Weir, P.Eng., Technical Manager - Mining Engineering and Expert Witness, SLR Consulting, Toronto

11:15-11:45

Coffee break

11:45-13:15

Session III: Evaluate - the economic experts panel

  • From asset-based to cash-flow-based valuations
  • Does ‘massive’ mean ‘excessive’?
  • The future of reparations in the light of Uncitral WG III proposals
  • Reparations in case of non-going concern — between exploration and exploitation licence

 

Moderated by:

  • Dr hab. Beata Gessel-Kalinowska vel Kalisz, prof. INP PAN, GESSEL, Warsaw; President, ICC Poland President

Panellists:

  • Florin Dorobantu, Principal, The Brattle Group, New York
  • Daniel Flores, Managing Director, Quadrant Economics, Washington D.C.
  • Pablo T. Spiller, Managing Director, BRG, New York
  • Jessica Resch, Partner, Analysis Group, London

13:15-14:30

Session IV: Arbitrate – the legal experts panel

  • Mining as the frontline of the legitimacy crisis in investment arbitration
  • Legal licence without social licence: state failure or investor miscalculation?
  • ESG and investor conduct: an emerging factor in arbitral reasoning
  • Are traditional BIT standards fit for purpose in mining-related disputes?
  • Remedies and risk management: the future role of ISDS in the mining sector

 

Moderated by:

  • Jaroslav Kudrna, Head of International Arbitration and Investment Protection,  Ministry of Finance of the Czech Republic, Prague

Panellists:

  • Diego B. Gosis, Partner, GST LLP, Miami
  • Margie-Lys Jaime, Ministry of Economy and Finances of the Republic of Panama, Panama
  • Maria Chiara Malaguti, Of Counsel, PedersoliGattai, Rome

14:30-14:45

Closing remarks

14:30-16:00

Flute of champagne

Diana Akikol

Partner, Walder Wyss Ltd., Geneva

Sara Koleilat-Aranjo

Partner, Morgan, Lewis & Bockius LLP, Dubai

Piotr Bytnerowicz

Founder, ByArb, Warsaw

Luis Capiel

Partner, Arias SLP, Geneva

Florin Dorobantu

Principal, The Brattle Group, New York

Daniel Flores

Managing Director, Quadrant Economics, Washington D.C.

Diego B. Gosis

Partner, GST LLP, Miami

Margie-Lys Jaime

Ministry of Economy and Finances of the Republic of Panama, Panama

Dr hab. Beata Gessel-Kalinowska vel Kalisz, prof. INP PAN

GESSEL, Warsaw; President, ICC Poland

Marcin Kałduński

Counsel, Deputy Director, General Prokuratoria of the Republic of Poland, Warsaw

Prof. Gabrielle Kaufmann-Kohler

LKK Arbitration, Geneva

Dennis N. Kostic

President & CEO, Weir International, Inc., Chicago

Maria Kostytska

Partner, K&L Gates, Paris

Jaroslav Kudrna

Head of International Arbitration and Investment Protection, Ministry of Finance of the Czech Republic, Prague

Iuliana Iancu

Partner, Hanotiau Tossens Goldman, Brussels

Richard J. Lambert, P.Eng., P.E.

President, Lucky Peak Consulting, Boise

Maria Chiara Malaguti

Of Counsel, PedersoliGattai, Rome

Rafał Morek

Vice President, ICC Poland

Monika Nachyła

Independent Supervisory, Board Member, Investor, Warsaw

Emilia Onyema

International Arbitrator, Professor, SOAS University of London, London

Vladimir Pavic

Professor, University of Belgrade Faculty of Law, Belgrade

Mark Pelling KC

International Arbitrator and Judge, DIFC Court, London

Claudia Salomon

President, ICC International Court of Arbitration

Dr hab. Niels Schiersing

LLD, Independent International Arbitrator, Arbitration Chambers, London

Dr Anke Sessler

Independent Arbitrator, Sessler Dispute Resolution, Frankfurt

Pablo T. Spiller

Managing Director, BRG, New York

Jessica Resch

Partner, Analysis Group, London

Ian Weir, P.Eng.

Technical Manager - Mining Engineering and Expert Witness, SLR Consulting, Toronto

Venue Polish History Museum, Gwardii 1, 01-538 Warsaw 
Travel information 

For more travel information to Warsaw, please visit this page

For further information, please contact:

Iza Bukowinska

GESSEL, Warsaw

+48 22 318 69 09

conference@gessel.pl;

i.bukowinska@gessel.pl

Organisers

Grand Partners