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Siqueira Castro – Advogados

Work +55 11 3704 9840

Fernando Villela de Andrade Vianna

Work +55 21 2223 8818
Siqueira Castro – Advogados

Work Department

Rio de Janeiro Office



Areas of Expertise
• Administrative Law
• Regulatory Law
• Economic Law
• Environmental Law
• Constitutional Law
• International Law
• Public Tenders
• Public Administration Contracts
• Infrastructure
• Energy Law
• Oil&Gas
• Public-private partnerships


• Over 10 years of experience in Administrative Law, Regulatory Law, Economic Law, Environmental Law, Constitutional Law, International Law, Public Tenders, Public Administration Contracts, Infrastructure, Energy Law, Oil and Gas, and Public-private partnerships. Member of the Siqueira Castro - Rio de Janeiro Regulatory Sector staff since 2003 • Worked as an international associate at Thacher, Proffitt & Wood, LLP and SNR Denton, in New York, USA • Vice-Chair of the International Procurement Committee of the American Bar Association Section of International Law • Vice-President of airport infrastructure at Brazilian Arbitration and Mediation Centre (CBMA) • Arbitrator at Brazilian Arbitration and Mediation Center (CBMA) • Member of the Steering Group for the International Anti-Corruption Committee of the International Law Section.


Portuguese, English, Spanish and Italian.


• Member of the Brazilian Bar Association. • Member of the American Bar Association (Administrative Law and Regulatory Practice; International Law and Public Contracts section). • Vice-Chair of the International Procurement Committee of the International Law Section. • Member of the Steering Group for the International Anti-Corruption Committee of the International Law Section. • Member of the Electric Energy Committee of the Brazilian Bar Association (OAB/SP). • Member of the Administrative Law Committee of the Brazilian Bar Association (OAB/RJ). • Founding Member - Brazil Infrastructure Institute. • Former Co-Chair - Solar Energy Committee at Associação Brasileira dos Produtores de Energia Elétrica - APINE.


• Graduated from Universidade Cândido Mendes, in 2005
• Post-graduate in Regulatory and State Law from Fundação Getúlio Vargas (FGV/RJ)
• Master of Law (LL.M) in Trade Regulation from the New York University – NYU



Corporate and M&A (including ‘compliance’)

Within: Corporate and M&A (including ‘compliance’)

With an extensive office network in Brazil, Siqueira Castro – Advogados has lawyers based in key cities across the country. The team is also active in cross-border transactions and maintains relationships with numerous foreign law firms. The firm’s busy compliance team is led by João Daniel Rassi and Fernando Villela de Andrade Vianna, and advises on foreign and national legislation. Carlos Fernando Siqueira Castro, Fábio Korenblum and Guilherme Dantas are advising a client in the energy generation field on commercial agreements, corporate governance and compliance policies. Sérgio Ricardo Fogolin is another name to note.

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Projects and infrastructure

Within: Projects and infrastructure

Siqueira Castro – Advogados provides ‘quick and adequate replies’, and acts for clients such as Petrobras, NUCLEP and Fraport. It assisted the latter in relation to the airport concession bidding round, with the client successful in relation to both Porto Alegre and Fortaleza. Fernando Villela de Andrade Vianna is recommended. Renata de Abreu Martins and Rodrigo Alexander Calazans Macedo made partner in 2017.

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Public law

Within: Public law

Siqueira Castro – Advogados has a notable track record advising clients in the energy, telecoms and transport sectors. Its multidisciplinary team offers administrative, regulatory, environmental and corporate law expertise. Carlos Roberto Siqueira Castro, Fernando Villela de Andrade Vianna and Renato Otto Kloss advised Federação de Futebol do Estado do Rio de Janeiro (FERJ) on a bidding procedure for the concession of the Maracanã stadium. Renata de Abreu Martins and Rodrigo Alexander Calazans Macedo regularly have a hand in the team’s most noteworthy work.

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Brazil: Energy and natural resources


Within: Electricity

Siqueira Castro – Advogados has a dedicated power litigation department which regularly handles strategic cases. A highlight in 2017 was representing Interligação Elétrica do Madeira in several administrative proceedings regarding the environmental and regulatory licensing of a transmission line. Fernando Villela de Andrade Vianna and Simone Paschoal Nogueira are recommended. Environmental law expert Marina Vieira Freire Colosio and Rodrigo Alexander Calazans Macedo made partner.

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Within: Hydrocarbons

Siqueira Castro – Advogados has a focus on disputes in the oil and gas sector, while its other work includes advising Ceg and Ceg Rio on matters before the energy and sanitation agency Agenersa in relation to certain investments. Fernando Villela de Andrade Vianna is recommended together with newly appointed partner Rodrigo Alexander Calazans Macedo.

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Within: Mining

The ‘proactive and efficient’ group at Siqueira Castro – Advogados is acting for Vale in administrative and regulatory proceedings before the National Department of Mineral Production, and is defending Companhia Riograndense de Valorização de Resíduos in litigation concerning the mining enterprise of Copelmi. Fernando Villela de Andrade Vianna and the ‘dynamicSimone Paschoal Nogueira are the names to note.

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