Nedden, Jan Heiner

Attorney/Managing Partner

• Since 2011 Partner with Hanefeld Rechtsanwälte
• 2006 – 2011 Counsel with the ICC International Court of Arbitration, Paris, Deputy Counsel from 2004 -2006
• 2003 – 2005 Master of Mediation (M.M.), specialization in commercial and business mediation and mediation in the public sector, Fern-Universität Hagen
• 2004 Consultant with the EU Liaison Office of Bayer AG, Brussels
• 2002 – 2004 Legal traineeship (Referendariat) in Northrhine-Westphalia
• 2001 Summer Associate with Roland Berger Strategy Consultants, Berlin
• 1995 – 2001 Studies of law at the universities of Kiel, Heidelberg, Ottawa (Canada) and Freiburg im Breisgau
• 1994 – 1995 Studium generale at the Leibniz Kolleg, Tübingen

***More than 80 cases as arbitrator, including cases involving States or State-related entities ***Presiding Arbitrator: 27 arbitrations (ICC, DIS, SCC, Voldgiftsinstituttet, ad hoc) ***Co-Arbitrator: 46 arbitrations (ICC, DIS, Voldgiftsinstituttet, ad hoc) ***Sole Arbitrator: 15 arbitrations, incl. emergency arb. (ICC, SCC, VIAC, WIPO) ***Case management of app. 1000 ICC arbitration proceedings and scrutiny of app. 500 ICC awards. Has dealt with almost all possible procedural constellations and situations, many different subject matters and jurisdictions as well as a range of industrial sectors. ***Consultant with the International Centre for Expertise of the ICC for ICANN (Internet Corporation for Assigned Names and Numbers) Expert Determination proceedings under the New gTLD Dispute Resolution Procedure/ICC Expertise Rules ***Appointed to the WIPO List of Arbitrators ***Appointed to the British Virgin Islands International Arbitration Centre (BVI IAC)

• Practice commentary on the ICC and DIS Rules, Verlag Dr. Otto Schmidt, 2nd ed., 2022 (co-editor with A. B. Herzberg and U. Kopetzki)
• The Exception in Theory, a Unicorn in Practice? Revisiting Security for Costs from a Practitioner’s Perspective, Stockholm Arbitration Yearbook, 2022 (co-author with I. Witte)
• Correction and Interpretation of Awards and Additional Awards, Kluwer Arbitration Practice Plus, 2021 (co-author with M. Hauser-Morel)
• § 20 Schiedsspruch, in: Salger/Trittmann (eds.), Internationale Schiedsverfahren – Praxishandbuch, 2019, jointly with Dr. Inka Hanefeld (in German)
• Arbitration in a Post-Truth-World: Perception v Reality, IBA Dispute Resolution International, Vol. 12 No. 2 2018, pp. 165 et seq., jointly with Aaron de Jong
• Chapter 10: Germany, in Jørgensen (ed.): Finding, Freezing and Attaching Assets, March 2016, jointly with Dr. Friedrich Rosenfeld
• The Arbitral Tribunal’s Deliberations – potential conflicts and ways to avoid them, SchiedsVZ 2015, pp. 169 et seq., jointly with Dr. Johanna Büstgens (in German)
• Praxiskommentar ICC-SchO/DIS-SchO (Co-Editor), Verlag Dr. Otto Schmidt, December 2014 (together with Axel Benjamin Herzberg)
• The New UNCITRAL Transparency Rules: How the Trend towards Transparency differs in Investment and Commercial Arbitration, in: Müller, Rigozzi (eds.), New Developments in International Commercial Arbitration 2013, November 2013 (together with Dr. Friedrich Rosenfeld)
• Arbitral Tribunals in Germany and Western Europe, in: Paschke, Graf, Olbrisch (eds.), Hamburger Handbuch des Exportrechts, 2014 (in German)

• Former appointed member of the ICC Commission on Arbitration and ADR
• Member of the Task Force for the Revision of the 2014 IBA Guidelines on Conflicts of Interest in International Arbitration
• Member of the Drafting Committee for Commentary on the revised text of the 2024 IBA Guidelines on Conflicts of Interest in International Arbitration
• Appointed member of the International Dispute Resolution Committees of the Voldgiftsinstituttet (Danish Institute of Arbitration)
• Former appointed member of the ICC Commission's Task Force on "The Revision of the Rules of ICC as Appointing Authority in UNCITRAL or other Ad Hoc Arbitration Proceedings"
• Former appointed member of the Consolidation Committee for the revision of the DIS arbitration rules
• Member of the editorial board of the ICC Germany magazine
• German Arbitration Institute (DIS)
• Swiss Arbitration Association (ASA)
• Danish Arbitration Association
• Hamburg Arbitration Circle
• Austrian Arbitration Association (Arb Aut)

Named in JUVE’s list of Germany’s top 30 most renowned arbitrators*** Named in Who’s Who Legal: The International Who’s Who of Business Lawyers, Commercial Arbitration 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014*** Named in Chambers & Partners Band 2 Arbitrators 2025*** Named in Who’s Who Legal Germany: Arbitration Lawyers 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015*** Named in Who’s Who Legal: Legal Thought Leaders – Arbitration 2024, 2023, 2022, 2021, 2020, 2019, 2018*** Recommended in The Legal 500 Germany 2020, 2019, 2018, 2017, 2016, 2015***