Public International Law

Practical advice for real world situations


We operate in the real world: as one of the only firms with experts in a broad range of international law issues across a global network, we find pragmatic solutions to the trickiest international law problems.

Understanding the political and international law issues at play and the commercial realities our clients face allows us to best advise on their highest profile and most complex matters.

We can provide focused legal and strategic advice across the full spectrum of pure public international law issues, particularly within the following areas:

  • international boundary disputes and law of the sea
  • cross-border resources deposits and exploitation in disputed areas
  • international trade law and World Trade Organisation
  • sanctions and export control
  • foreign corruption
  • sovereign immunity
  • international human rights and corporate social responsibility

Our dedicated cross-office team includes our investment treaty arbitration and investment protection practice.

Find the latest developments on investment arbitration, state immunity, boundaries and delimitation, international human rights and sanctions

Recent Experience

Government of Malaysia

Representing in a successful US$1.2 billion arbitration against the Republic of Singapore concerning the interpretation of a bilateral treaty, conducted under the Permanent Court of Arbitration Optional Rules for Arbitrating Disputes Between Two States 

Multi-national energy companies

Advising on the commercial and international law implications of instability in Iraq, including in relation to a possible declaration of independence by the Kurdistan Region of Iraq


Advising on its maritime boundary disputes with Myanmar and India

A consortium of international oil companies

Advising on their rights under public international law, national and international investment law in respect of contracts granted by the Republic of the Sudan over oil and gas reserves located wholly or partially within South Sudan

an Asian offshore contractor

Advising in a dispute arising out of US, UN and EU sanctions and the terms upon which it can withdraw from Iran

Government of Spain

Successfully representing in arbitration proceedings commenced by 16 investment funds based on alleged violations of the protections in the Energy Charter Treaty 

Learn more about how we help our clients in

International Arbitration

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