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Sub practice
Sub practice

International Arbitration

Allen & Overy’s International Arbitration group advises a diverse range of corporates, financial institutions and governments on complex cross-border commercial arbitrations and investment treaty arbitrations.

With arbitration experts, including leading advocates, spread across our global network of offices, we advise on the most pressing and complex disputes wherever they arise. 

A&O’s international arbitration expertise spans the full range of sectors in which arbitration is used, including: 

  • Energy and natural resources
  • Construction and infrastructure projects
  • Telecommunications
  • Life sciences
  • Banking and finance
  • Intellectual property rights
  • M&A and joint ventures

Representing clients in arbitrations under all the key rules, including the ICC, LCIA, HKIAC, SIAC and UNCITRAL Rules, our specialist practitioners around the world are qualified in many jurisdictions and fluent in numerous languages. Senior members of our team regularly sit as arbitrators and hold key positions with the leading arbitral institutions and/or legal associations. Our experience allows us to most effectively represent our clients' best commercial interests.

We typically conduct our own advocacy in clients’ arbitration cases, delivering cost savings and ensuring our advocates are involved from the very start of proceedings. Our approach to the conduct of matters is always informed by our advocacy experience.

News & insights

Cityscape image of London in evening

Publications: 07 DECEMBER 2020

UK Supreme Court clarifies English law on arbitrators’ duties of impartiality, disclosure and confidentiality

In Halliburton Company v Chubb Bermuda Insurance Ltd [2020] UKSC 48, the Supreme Court recognised for the first time that there is an ongoing, statutory duty in English law, which requires arbitrators…

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Amendments to the Singapore International Arbitration Act come into force

Publications: 07 DECEMBER 2020

Amendments to the Singapore International Arbitration Act come into force

On 1 December 2020, the International Arbitration (Amendment) Act 2020 (the Amendment Act)1 came into force, introducing two of the proposed amendments to the Singapore International Arbitration Act…

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ESMA guidelines in respect of performance fees in UCITS and certain types of AIFs

Publications: 02 DECEMBER 2020

Governing law of an arbitration agreement: UK Supreme Court ruling brings clarity

The Supreme Court unanimously held that, if the parties have chosen a governing law for a contract containing an arbitration clause, this would usually amount to an express or implied choice of…

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Row of four structural marble columns

Publications: 02 DECEMBER 2020

Supplemental Arrangement Concerning Mutual Enforcement of Arbitral Awards between Hong Kong and the Mainland

On 27 November 2020, the Department of Justice of the HKSAR Government and the Supreme People’s Court of the People’s Republic of China (the PRC) signed the Supplemental Arrangement Concerning Mutual…

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  1. Band 1, Dispute Resolution, Global-wide, Chambers Global 2019
  2. International Arbitration Firm of the Year, Benchmark Litigation Asia-Pacific Awards 2019
  3. Best Arbitration Team of the Year in Spain and Portugal, 2019