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Apart from offering expert legal consultancy for local jurisdictions, CMS partners up with you to effectively navigate the complexities of global business and legal environments.

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Public International Law

Public international law is a set of rules, norms, and standards that govern relationships between states and other international actors. It is therefore critical to any cross-border initiatives embarked upon by any public or private sector entity involved in multinational trade, commerce, projects or investments. 

In our interconnected world, the importance of understanding international law and the impact of global and regional regulations continues to grow. Our dedicated team has provided expert advice to states and state organs, corporations, and international organisations on the complexities of public international law. 

Our expertise includes advising on:

  • Treaties and their interpretation 
  • State responsibility
  • State and diplomatic immunity and privileges
  • Territorial issues, boundaries, and jurisdiction
  • Investor-state arbitrations
  • Law of the sea, including maritime jurisdictional matters
  • Proceedings before other international courts and tribunals

Moreover, we specialize in navigating the challenges posed by international regulations and enforcement, including:

  • Anti-money laundering, anti-corruption, and anti-terrorism regulations
  • Bilateral investment treaties and investment protection
  • Business and human rights, including corporate responsibility
  • Economic sanctions
  • Export controls
  • International environmental law and regulation
  • International trade law
  • Risk assessments for international projects and investments
     
Awards & Recognitions
01
  • Quote
    Siphokazi brings in the right resources and ensures the deadlines are met. She is very practical when approaching issues.
    Chambers & Partners, South Africa, 2025
  • Quote
    They go over and above to ensure that the client's interests are protected.
    Legal 500, South Africa, 2025
  • Quote
    It is an absolute pleasure to work with Siphokazi Kayana and the rest of the team. They are a group of capable, skilled and highly intelligent lawyers. Siphokazi is always available to provide legal guidance.
    Chambers & Partners, South Africa, 2025

Public International Law Insights

Events

  • Scenic of panorama view of sunrise skyline and cityscape with light tail on road into metropolis, Bangkok, Thailand
    South Africa
    24 Apr 2025

    Cross-Border Financial Services 2025 webinar series

  • South Africa
    24 Apr 2025

    CMS at Fordham IP & Policy Conference

  • South Africa
    07 May 2025

    On the Pulse webinar series 2025 - Spring/Summer

  • South Africa
    17 May 2025

    CMS at INTA 2025

Local market knowledge. Global outlook

We provide future-facing legal advice to help your organisation thrive. Combining local market knowledge and a global perspective, and with lawyers in locations worldwide, your organisation benefits from the expertise it needs, even across borders.

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