
Mining companies, investors and financial institutions trust Mattos Filho’s ‘customer-focused approach’ and ’technical quality’ in transactional matters, ranging from cross-border M&A and project financing to joint ventures, investments, royalties transactions and commercial agreements. The collaborative team also handles ESG-related and regulatory matters, contributes to policy-making, and is particularly active in critical minerals matters, notably involving lithium. Brasília-based Adriano Drummond Trindade, ‘knowledgeable’ of mineral policy and regulations, advises on project development, M&A, financings, as well as contractual and ESG-related matters. Bernardo Môcho, based in São Paulo, and Rômulo Sampaio, in Rio de Janeiro, frequently support the practice in project financing and environmental matters, respectively.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘Incredibly responsive and knowledgeable about specific legal questions and, more generally, the commercial issues impacting our industry. We have used other firms in Brazil and I'm much more comfortable using Mattos Filho for our commercial transactional matters, whether that is as lead commercial counsel or supporting due diligence matters.’
‘Mattos Filho has a customer-focused approach, with quick response times, technical quality, and flexibility in fee negotiations.’
Key clients
- Lundin Mining
- Lithium Ionic Corp.
Work highlights
Advised BHP Billiton on the $30bn settlement of the Mariana tailings dam disaster.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Other key lawyers
Adriano Drummond Trindade; Bernardo Môcho; Rômulo Sampaio; Carlos Tomaz Assunção Ribeiro
