Third-Party Participation in International Arbitration: Liber Amicorum Christian Borris

Editors

Rudolf Hennecke (Editor); Sebastian Kneisel (Editor); Konstantin Tschöpe (Editor)

ISBN: 9781048001273

Published: September 2026

Format: Hardback

Language: English

Publisher: Hart Publishing

Description

As international arbitration proceedings grow more complex, third-party participation has become one of the most contested procedural questions practitioners face today. Joinder and consolidation applications, third-party funding disclosure, and the involvement of non-signatories in group-of-companies disputes now shape how tribunals and institutions manage multi-party cases. This Liber Amicorum, assembled in honour of German arbitrator Christian Borris, brings together cross-jurisdictional perspectives from leading arbitration practitioners and academics on exactly these issues.

The volume is organised in three parts: foundational legal principles and conceptual frameworks governing third-party involvement; jurisdiction-specific and sector-focused studies spanning shareholder disputes, investment arbitration, multi-party construction and supply chain contracts, insurance arbitration, and even space law; and practical guidance for counsel and tribunals managing multi-party proceedings. Each contribution is grounded in the lived experience of practitioners who handle these disputes across different legal systems and arbitral institutions.

It is addressed to international arbitration counsel, arbitrators, in-house legal teams managing cross-border disputes, and the academic law libraries that support them — a timely reference as institutions continue to refine their rules on joinder, consolidation and third-party funding.

Key Features

• Cross-jurisdictional analysis of joinder and consolidation mechanisms across major arbitral institutions
• Dedicated chapters on third-party funding disclosure and its procedural consequences for tribunals and counsel
• Sector-specific case studies: shareholder and corporate group disputes, investment treaty claims, multi-party construction and supply chain contracts, insurance arbitration, and space law
• Practical guidance for drafting multi-party arbitration clauses and managing joinder applications in live proceedings
• Tribute essays situating the doctrinal analysis within Christian Borris's own body of arbitration practice

Coverage

• Joinder and consolidation of parties
• Third-party funding and disclosure
• Group of companies doctrine
• Investment arbitration and non-disputing parties
• Multi-contract and multi-party disputes
• Insurance and reinsurance arbitration
• Supply chain and construction disputes
• Space law arbitration
• Evidentiary issues involving third parties

About the Editors

Rudolf Hennecke, Sebastian Kneisel and Konstantin Tschöpe are German arbitration practitioners who compiled this Liber Amicorum in honour of Christian Borris, a leading German arbitrator recognised internationally for his contributions to the law and practice of third-party participation in arbitration. The volume brings together contributions from arbitration practitioners and academics across multiple jurisdictions.

Table of Contents

• Part I: Foundations — Legal Principles and Conceptual Frameworks of Third-Party Participation
• Part II: Jurisdictional and Sectoral Perspectives — Shareholder and Corporate Disputes, Investment Arbitration, Multi-Party Contracts, Insurance, Supply Chains, Space Law
• Part III: Practice — Managing Joinder, Consolidation and Third-Party Funding in Live Proceedings
• Tribute Essays in Honour of Christian Borris

Why buy this book?

Third-party participation is one of the fastest-moving procedural debates in international arbitration, and this volume is among the first to bring cross-jurisdictional, sector-specific analysis together in a single reference — combining doctrinal depth with the practical experience of arbitrators and counsel who handle these issues daily.

Keywords

third-party participation, international arbitration, joinder, consolidation, third-party funding, investment arbitration, multi-party disputes, group of companies doctrine, Christian Borris, Liber Amicorum

Target Audience

International arbitration practitioners, arbitrators, in-house counsel, academic law libraries, dispute resolution scholars

Genre

Arbitration, International Arbitration, Alternative Dispute Resolution

Q&A

What is third-party participation in international arbitration?
It refers to the involvement of parties beyond the original signatories to an arbitration agreement — through joinder, consolidation, intervention, or third-party funding — in arbitral proceedings.

Why has third-party funding become a contested issue in arbitration?
Because funding arrangements can affect disclosure obligations, conflicts of interest, and cost allocation, prompting arbitral institutions to introduce new transparency rules.

Does this book cover investment arbitration as well as commercial arbitration?
Yes — it examines third-party participation across both commercial and investment arbitration, including non-disputing party submissions.

Who is Christian Borris?
A leading German international arbitrator honoured in this Liber Amicorum for his contributions to the practice of third-party participation in arbitration.

Where can I buy Third-Party Participation in International Arbitration: Liber Amicorum Christian Borris?
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