Sarah Grimmer


Sarah Grimmer


New Zealand

English, French

Education & Qualifications
LL.M., Cambridge University
LL.B. / BA (Criminology), Victoria University of Wellington

Bar Admission
New Zealand

Sarah Grimmer is Secretary-General of Hong Kong International Arbitration Centre. She was formerly Senior Legal Counsel at the Permanent Court of Arbitration (PCA) where she acted as registrar in several inter-State arbitrations under the Law of the Sea Convention and served as tribunal secretary in multiple investment treaty arbitrations and contract-based claims.

Prior to joining the PCA, Sarah served as Assistant Counsel at the ICC International Court of Arbitration in Paris. She was also a member of the international arbitration group at Shearman & Sterling LLP in Paris, prior to which she worked in private practice in Auckland. In 2015, Sarah was appointed to the Special Tribunal for Lebanon Disciplinary Board. She is a member of the ICCA-ASIL Task Force on Damages (2016), ICCA Publications Committee (2015), the IBA Investment Arbitration Subcommittee (2014), New Zealand ICC Arbitration Committee (2014), and the IBA Arb40 Steering Committee (2013).


  • ‘Constituting the Tribunal and Challenging its Member: Due Process Issues and Concerns; ICCA Congress Series No. 19 (forthcoming)

  • ‘The Determination of Arbitrator Challenges by the Secretary-General of the PCA’ in C. Giorgetti (ed), Challenges and Recusal of Judges and Arbitrators in International Courts and Tribunals, Martinus Nijoff/Brill, 2015

  • ‘Pro Bono in International Proceedings at the Permanent Court of Arbitration’, IBA Pro Bono Committee News, September 2015, No. 3

  • ‘Investment arbitration: issue conflicts and non-pecuniary remedies’, Report on session of the Arbitration Committee at the IBA Annual Conference in Tokyo, 24 October 2014, IBA Newsletter

  • ‘The Expanded Role of the Appointing Authority under the UNCITRAL Arbitration Rules 2010’, 28 Journal of International Arbitration 5 (2011) 501.

  • ‘The Permanent Court of Arbitration and the UNCITRAL Arbitration Rules: Current Interaction and Future Perspectives’, in Arbitraje Internaciónal y Resolucion Alternativa de Controversias de Documentos de Trabajo del Instituto Universitario de Estudios Europeos, Número 5/2009


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