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Public International Law

Allen & Overy advises national and international corporations, financial institutions, international organisations, governments and States on all contentious and non-contentious aspects of public international law. Our market-leading practice includes specialists in environmental law, regulatory compliance and risk management, dispute resolution, anti-bribery and corruption, anti-money laundering, public law, human rights and sanctions.

A&O’s public international law advisory work includes:

  • The drafting and interpretation of international treaties and conventions
  • Maritime, territorial and boundary rights
  • State succession
  • International sanctions regimes
  • Privileges and immunities of States and international organisations
  • Recognition of States and State succession
  • Title to natural resources and international environmental law
  • Use of force and international humanitarian law
  • Space law
  • Trade law

We also advise on contentious Public International Law matters, including State-to-State disputes under public international law, including boundary disputes, and have a market-leading investment treaty arbitration practice. 

Our experts have acted as counsel before international courts and special tribunals, such as the Iran-US Claims Tribunal, and advised states on out-of-court strategies for dispute resolution, including before UN fora. We are also one of only a handful of law firms with experience of contentious World Trade Organisation proceedings.

新闻与透视

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Publications: 20 December 2023

从绝对豁免到相对豁免——《外国国家豁免法》对内地和香港跨境争议的影响

随着《中华人民共和国外国国家豁免法》(下称“《外国国家豁免法》”)即将于2024年1月1日起施行,中华人民共和国(下称“中国”)内地和香港长期以来所奉行的对外国国家及其财产的绝对豁免原则亦将迎来终结。《外国国家豁免法》引入了有关商业活动的例外,并允许外国国家事先以明示的方式放弃国家豁免,从而增加了可对外国国家提起诉讼的情形,并扩大了可对其在内地和香港境内的财产执行仲裁裁决和法院判决的范围。这一变化…

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Awards and achievements

  1. Tier One, Public International Law, Legal 500 UK 2022
  2. Band 1, Dispute Resolution, Global: Multi-Jurisdictional,, Chambers Global 2022
  3. International Arbitration Firm of the Year, Benchmark Litigation Asia-Pacific Awards 2020
  4. Leading firm (top tier) ranking in the “Leaders League” table for International Arbitration (Spain) 2022
  5. 24 lawyers ranked in Who's Who Legal: Arbitration 2024, including one Global Elite Thought Leader and nine Thought Leaders 

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