Specialist in energy and infrastructure projects, having participated in many electricity generation, transmission and distribution transactions and projects.

Sebastián Leyton focuses his practice on matters relating to the energy sector, including contractual matters for project development, acquisitions and international financing for those projects. His role in projects involves negotiating electricity supply, interconnection, construction and operation contracts. He also handles administrative and court proceedings in the energy sector. He has advised several Chinese energy developers. 

Before joining Cuatrecasas, he was head of the Legal Division of Chile’s Superintendence of Electricity and Fuels, the enforcement agency for the energy sector. He also worked as a foreign associate at the US law firm Milbank LLP in New York and at a leading Chilean law firm. 

He has taught classes in postgraduate programs on administrative sanctioning processes and project development at Universidad Finis Terrae

He has written several articles on energy development and regulation and has participated as a speaker at many national conferences.


  • Master of Laws
    University of California, Berkeley, 2014

    Bachelor of Laws and Social Sciences
    Univerisdad de Chile, Santiago, 2009

    Certificate in Clean Energy & Technology
    University of California, Berkeley, 2014

    Diploma in Natural Resources and Energy
    Pontificia Universidad Católica de Chile, 2011

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Chambers & Partners (Latin America & Global), Legal 500, Latin Lawyer 250 and Best Lawyers in Energy & Natural Resources, Electricity & Hydrocarbon and Project Finance & Infrastructure