Constantine Partasides QC, a partner in the London office, will be a featured panellist on Quadrant Chambers’ “International Arbitration Panel Debate: Halliburton v Chubb.” The webinar will take place on Tuesday, 8 December, at 1:00 pm GMT.

The judgment issued on 27 November unanimously dismissed Halliburton’s appeal regarding the circumstances of the arbitrator’s appointment and doubts as to his impartiality. Constantine led the ICC Court’s submissions, as intervener, in this matter before the Supreme Court.

The panel will discuss the judgment, its implications, and the interrelationship between the duty to disclose matters relevant to impartiality and the duty of confidentiality in those other arbitrations. They will also discuss the effect on both duties of the particular arbitral context: what rules and what type of arbitration.

Click HERE to join this webinar.


Constantine is recognised in all major directories and publications. Chambers UK recently honoured him as a “Star Individual” in International Arbitration—one of only two lawyers with this ranking, he was named in the “Hall of Fame” for International Arbitration in the 2021 edition The Legal 500 UK, and has been ranked as one of the “Top 20” individuals in the world of commercial arbitration every year since 2011 by Who’s Who Legal.

Constantine is a co-author of the fourth, fifth, and sixth editions of the leading textbook on international arbitration, “Redfern and Hunter on International Arbitration.”

Constantine is a solicitor-advocate (Higher Courts Civil) and was appointed Queen’s Counsel in 2014. He was educated at King’s College, London, and Cambridge University.

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