Natural resources and regulation in Brazil

Azevedo Sette Advogados

Large international and domestic mining and energy companies turn to Azevedo Sette Advogados for assistance with all matters concerning natural resources and regulation. As part of its advisory offering, the group is equipped to handle concession agreements, PPPs, joint ventures, including the antitrust aspects, and environmental matters. The practice also houses strong capabilities in contentious matters, often representing clients in judicial and administrative proceedings before regulatory bodies. Leonardo Pereira Lamego, whose expertise spans litigation, environmental permits and compliance matters, oversees the environmental and mining teams. He is supported by a team of senior associates, including environmental specialist Cynthia De Souza Cardoso and mining expert Gabriela Salazar Silva Pinto.

Practice head(s):

Leonardo Pereira Lamego

Key clients



Nexa Resources

The Forest

Jaquar Mining

Yamana Gold

Anglo American


J. Mendes

Sintertec Minerais Industriais


Enel Brasil

Ibitu Energia

RHI Magnesita

CGN Energy International Holdings

Evolua Energia



Elektro Eletricidade e Energia

Nexway Energy


BP Energia

Cescon Barrieu

Cescon Barrieu stands out for its expertise in the mining and metals segments, which makes the firm a popular choice for major mining companies operating in Brazil. In addition to its strength in M&A deals, joint ventures, financing transactions and strategic alliances, the group excels in judicial and administrative disputes. The practice is particularly known for its crisis management offering, which includes assistance with regulatory matters, construction operations and decommissioning of tailing dams. Marcelo Mendo Gomes De Souza is noted for his strong track record in mining, regulatory and environmental matters. Frederico Viana Rodrigues is a key contact for M&A and project finance transactions. Other active practitioners in the team include Paula Azevedo De Castro and Maurício Pellegrino De Souza, who combine extensive expertise in all matters pertaining to the mining industry.

Practice head(s):

Marcelo Mendo Gomes de Souza; Frederico Viana Rodrigues; Maurício Pellegrino de Souza; Paula Azevedo de Castro

William Freire Advogados

Leading boutique William Freire Advogados is regularly sought after to advise on all stages of the life cycle of a mine, from acquisitions to expansions and closure. As part of its broad offering, the group handles strategic management of mineral assets, M&A deals, and regulatory, environmental and real estate matters related to mining ventures. On the contentious front, the practice is well versed in mining litigation and administrative disputes before regulatory bodies. The team is jointly led by William Freire and Tiago De Mattos, who together combine extensive experience in crisis management, corporate matters, judicial and administrative disputes, and arbitration. They are supported by associates Bruno Costa and Ana Maria Damasceno.

Practice head(s):

Tiago de Mattos; William Freire


‘An excellent firm. Focused on regulation and active in all its developments.’

‘A very competent team of high quality, recognised in Brazil and other countries. Commitment and quality are strengths in addition to an excellent relationship with clients.’

‘Deep technical knowledge, practicality and availability.’

Key clients

CMOC International

Mineração Usiminas

Equinox Gold

Kinross Brasil Mineração

Mosaic Company

Grupo Imerys

AngloGold Ashanti

Grupo Gerdau

Bahia Mineração

Largo Resources

Grupo RHI Magnesita

Work highlights

  • Advised Horizonte Minerals on high-profile real state and mining matters regarding the Araguaia Project, a nickel project in Brazil.
  • Assisted Mineração Usiminas with the legal and regulatory matters connected to the expansion of the company’s iron project in Minas Gerais.
  • Acted for Bahia Mineração in complex negotiations involving land and mining titles swap, regarding the Pedra de Ferro Project.

Freitas Ferraz Advogados

At Freitas Ferraz Advogados, the public law and regulatory team is noted for its strong expertise in mining and energy-related projects and joint ventures. During 2021 and 2022, the practice was particularly busy handling hydroelectric power plant acquisitions, project finance transactions, and complex regulatory and compliance matters. Practice head Thiago Riccio‘s expertise spans large infrastructure projects, acquisitions of hydroelectric, wind and solar power plants, and environmental regulation.

Practice head(s):

Thiago Riccio


‘Available and qualified team.’

‘The office stands out for the quality of services provided and speed.’

‘Performing work with a high degree of quality.’

‘The professionals involved in the project were highly qualified, having proposed several solutions in line with the interests of the client. In times of pandemic, the response was remarkable, with the firm demonstrating that it is technologically adapted to meet new challenges.’ 

‘The service was carried out predominantly by Adriano Ferraz and Thiago Braichi, which ensured a personalised and high-quality service.’

‘Strong commitment to meeting deadlines and permanent search for optimised solutions.’

Key clients


Hy Brazil Energia

América Energia

Atmo Comercializadora de Energia

BEI – Brasil Energia Inteligente

CEI Solar Empreendimentos Energéticos

Recimap Geração de Energia Elétrica

Gameleiras Energias Renováveis

Viasolo Engenharia Ambiental

Essencis MG Soluções Ambientais

ICAL Indústria de Calcinação

Horizonte Minerals

Minas de Ventos

Work highlights

  • Advised Horizonte Minerals on the regulatory and environmental aspects of the negotiation of a proposed $633m package to fund the Araguaia Nickel Project.
  • Assisted Conedi Participações with the regulatory aspects related to the acquisition of the total share capital of Grupo Itatiaia.

Rolim, Viotti, Goulart, Cardoso Advogados

At Rolim, Viotti, Goulart, Cardoso Advogados, the natural resources and regulation department combines the firm’s energy, mining, environmental and telecoms teams. In the energy space, the group often handles concession agreements, tariff reviews, compliance matters and proceedings before the National Agency of Electric Energy (ANEEL). With strong capabilities in mining and environmental law, the practice is also noted for its track record in the sale of assets, M&A deals, financing transactions and contentious matters pertaining to these areas. Thiago Pastor Alves Pereira is a key contact for mining and environmental litigation, and Fabio Appendino is noted for his expertise in M&A transactions and corporate structures. Another key name is telecoms expert Ticiane Moraes Franco. The Belo Horizonte team is also supported by São Paulo-based partner Maria João Rolim and Rodrigo Azevedo Greco in Brasilia.

Practice head(s):

Maria João Rolim; Thiago Pastor Alves Pereira; Fabio Appendino; Rodrigo Greco; Ticiane Moraes Franco

Key clients

Telefônica Brasil

Fiat Chrysler


Algar Group

Anglogold Ashanti

ArcelorMittal Brasil

Brazilian Nickel

Bunge Brasil


CNH Industrial

Companhia Estadual de Geração e Transmissão de Energia Eletrica do Sul do Brasil

Companhia de Transmissão de Energia Elétrica Paulista

Consorcio UHE Guilman Amorim

Copel Telecomunicações

Decision Analysis Partners

Elekto Distribuidora de Energia


Grupo Integração Minas


Horizons Telecom

Huawei do Brasil Telecomunicações

Kinross Brasil Mineração


Mosaic Fertilizantes

Norte Brasil Transmissora de Energia


Operador Nacional do Sitema Eletrico

Piaui Niquel Metais

State of Minas Gerais Development Agency

The Brazilian Association of Competitive Telecommunications Services Providers

The National Union of Mobile and Personal Phone and Mobile Services Companies – Sinditelebrasil

TSEA Energia

Work highlights

  • Acted for Telefônica in a 5G auction held by the national regulatory authority ANATEL.
  • Advised Helexia on a power generation and distribution agreement involving 16 photovoltaic plants, which will generate up to 30% of savings for the telecom operator’s facilities in five Brazilian states.
  • Represented Kinross in negotiations with the Public Prosecutor of the State of Minas Gerais for the execution of an adjustment deal seeking to regularise its gold mining operations in Paracatu.

Sion Advogados

Sion Advogados is regularly retained by major mining companies to handle the implementation of projects, M&A transactions, and compliance and regulatory matters. The team is also frequently engaged in the monitoring of legal and administrative actions and proceedings involving energy matters. With more than 20 years of experience in advising national and international companies on large infrastructure projects, founding partner Alexandre Sion has a well-established reputation in the market. Bernardo Pessoa is noted for his expertise in M&A and commercial transactions involving mining, oil and gas, logistics and real estate matters. Gustavo Santiago is an expert in energy-related mandates and proceedings before regulatory agencies such as National Agency of Electric Energy (ANEEL).

Practice head(s):

Alexandre Oheb Sion; Bernardo Pessoa; Gustavo Santiago


‘The great differential of Sion Advogados is the partners, Alexandre Sion and Bernardo Pessoa, who have decades of experience in the performance of capital-intensive projects. The corporate business vision applied to legal operations contributes to the success of transactions.’

‘Partners are always available and effectively interested and engaged in deals.’

‘Bernardo Pessoa has deep technical and practical knowledge in the regulatory space. He inspires a lot of confidence. In addition, his experience in mining and energy projects contributes to the success of disputes and projects.’

Tavernard Advogados

Under the leadership of Murilo Melo Vale, who has a strong track record in advising on large infrastructure projects, and combines expertise in dispute resolution, public law and environmental matters, Tavernard Advogados regularly assists large public entities and companies operating in the energy and infrastructure sectors with natural resources and regulation matters. As part of its offering, the group is equipped to advise on concession matters, M&A transactions and compliance issues. Another pillar of the practice is disputes; it often represents clients in environmental litigation involving collective damages claims, infractions and fines.

Practice head(s):

Murilo Melo Vale

Key clients


Consórcio Pelotas 1

GI Energy Engenharia

Concert Technologies

Ágape Participações

Companhia de Desenvolvimento de Minas Gerais

CAM Engenharia


Rocket Importadora



Biomig Materiais Médico Hospitalares

Way Carbon Soluções Ambientais e Projetos de Carbono


Plantar Participações

Work highlights

  • Advised BNDS on public law and environmental aspects of the privatisation study project of CEASAMINAS and CEAGESP.
  • Assisted Eletronorte with the due diligence and regulatory risk analysis and environmental assessment of NBTE and Norte Energia.
  • Advised Companhia de Desenvolvimento de Minas Gerais on three disinvestment projects involving the manufacture of earth magnets and the production of graphene.