Sion Advogados has a team of highly qualified lawyers and consultants with in-depth experience to support its clients in cases of different levels of complexity. We believe in the importance of commitment to ethics and the permanent search for excellence as an investment in a long-term relationship with strong foundations.

Our professionals have the opportunity to combine experience and creativity to work on highly complex cases, through integrated work that combines skills in different areas of Law. In addition to this, Sion Advogados values ​​the continuous improvement of its professionals, stimulating the development of its lawyers and administrative professionals. In this way, this professional diversity contributes to the development of highly technical work, with assertive and appropriate responses to our clients' businesses.

Our Team

Alexandre Oheb Sion


Post-Doctorate in Law at University of Salamanca, Spain (certificate pending on the doctoral dissertation defense). Doctorate and Masters in Law candidate at Universidade Autônoma de Lisboa, Portugal (credits performed). Master’s degree in International Commercial Law (L.LM) at University of California, United States. Expert in Constitutional Law, Civil Law, and Civil Procedure Law at FGV (Fundação Getúlio Vargas). Lawyer graduated in Law and in Business Administration. Professional with strong background in supporting the implementation and operation of large capital intensive industries and developments and of infrastructure projects in Brazil.

  • He was an in-house lawyer (2001 to 2011) for Vale, MMX, and Anglo American, holding executive positions in the legal department at the latter two companies.
  • In recent years, he was the Head of Regulatory Legal Affairs for Brazil at the Anglo American group.
  • President of ABDEM – Brazilian Association of Energy and Environmental Law Founder and First Vice-President of the Brazilian Union of Environmental Advocacy – UBAA.
  • Member of the Board of Directors of ICLEI – Local Governments for Sustainability Consultant Member of the Special Commission on Infrastructure Law of the National Bar Association (OAB).
  • Consultant to the National Commission on Environmental Law of the OAB – Federal Council. President of the Infrastructure Law Commission of the OAB/MG since 2013.
  • Member of the Environmental Law Commission of IAB – Brazilian Lawyers Institute. Coordinator of the Legal Working Group of SINDIEXTRA – Mineral Industry Union of the State of MG.
  • Member of the National Legal Commission of IBRAM – Brazilian Mining Institute. Member or former member of the Environmental Law, Energy Law, Mining Law, Arbitration and Conciliation, Construction Law, and
  • Corporate Advocacy Commissions (2010-2012) of OAB/MG. Member of the Permanent Commission on Environmental Law of OAB/SP and the Anti-Corruption and Compliance Commission of OAB/RJ. Member of the National Infrastructure and Construction Committee of CAMARB – Business Mediation and Arbitration Chamber. Member of the Businessmen's Commission for the Environment of FIEMG.
  • Professor at PUC/MG – Pontifical Catholic University of Minas Gerais and guest professor at PUC/RS, UFG – Federal University of Goiás, IDP/SP, UNISANTA, ESA/RJ – Superior School of Advocacy of Rio de Janeiro, Maranhão School of Magistrature – ESMAM, Judicial School of Amapá – EJAP, CEDIN, CESUPA – University Center of Pará State, CERS, among others.
  • Active speaker in Europe and several Brazilian capitals, author and co-author of numerous books and nearly a hundred legal articles.
  • Alexandre Sion and Sion Advogados are among the most admired lawyers and law firms in Brazil, according to publications such as Chambers Global in 2020, 2019, 2018, 2017, 2016, and 2015; Chambers Latin America in 2020, 2019, 2018, 2017, 2016, 2015, and 2014; Análise Advocacia 500 in 2019, 2018, 2017, 2016, 2015, 2014, and 2012; The Legal 500 in 2019, 2018, 2017, 2016, and 2015; IFLR1000 in 2019, 2018, and 2017; Leaders League in 2020, 2019, and 2018; Who's Who Legal in 2019, 2018, and 2017; and Best Lawyers in 2020, 2019, 2018, 2017, 2016, and 2015.

Bernardo Barbosa Pimentel Pessoa


Lawyer with more than a decade of experience providing legal advice to large national and foreign companies, structuring, implementing and monitoring capital-intensive projects and M&A operations in the mining, oil and gas, infrastructure, logistics, energy and real estate sectors . Specialist in Corporate Law, capital markets and contracts, in the consultative and contentious spheres, as well as judicial and arbitration.

  • Member of the OAB/MG Infrastructure Law Commission.
  • Member of the OAB/MG Arbitration Commission.
  • Member of the OAB/MG Energy Law Commission.

Luiza Guerra


Partner in the Environmental and Mining area. Coordinator of the MBA in Environmental and Mining Law and Mining Project Management at Instituto Minere. Professor of Mining Law and Environmental Law in undergraduate, postgraduate and free courses. Master in Environmental Law and Sustainable Development from Dom Helder Câmara. Specialist in Environmental Law from Milton Campos. Specialist in Legal Management and Litigation from Ibmec. Graduated in Law from Milton Campos.

Fernanda Figueiredo


Partner of the Labor Area at Sion Advogados. Lawyer in the area of ​​Labor Litigation and Consultancy, with more than a decade of experience providing legal advice to large and medium-sized companies from different economic sectors. Graduated from Santa Cecília University (Santos), Specialist in Labor Law and Process from the Federal University of Bahia (UFBA) and Privacy and Data Protection Compliance from the Pontifical Catholic University of Minas Gerais (PUC-MG).