
The environment law practice at Barros & Errázuriz advises clients on a diverse range of environmental law issues across industries including energy, aquaculture, mining and technology. The team’s expertise ranges from project planning, permitting and compliance, to litigation and project closure, handling complex environmental impact assessments and indigenous consultation processes. It also advises on environmental emergencies, desalinisation and other water-related projects, and regulatory issues tied to waste, food law, and climate change. Litigation experts, the practice group’s lawyers are praised by clients for ‘always considering the technical aspects inherent to environmental disputes’. Recent major mandates include: representing the Eletrans II and III energy transmission lines against sanctioning proceedings before the Environmental Superintendence; providing ongoing environmental regulatory advice for the development of Microsoft’s data centres; and providing permitting advice to leading electricity generation company, Colbún. Counsel Matias Montoya leads the environmental group, bringing over 15 years’ experience in the sector – including prior service as General Counsel of the Environmental Assessment Agency; he oversees assessment processes, litigation, and compliance procedures. Partner Fernando Garrido is known for his work on energy project development and finance, often carrying out regulatory due diligence for energy companies. Key associate support is provided by senior Martín Vial Correa (environment, mining and water law) and intermediate Catalina Vergara Flores; however, former senior Mara Angelini moved in-house in November 2024.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'The B&E team is very comprehensive in the range of areas it covers (permits, inspections, sanctions, strategic issues, etc.) and the industries in which it has experience (mining, energy, agribusiness, infrastructure, etc.).'
- 'Matías Montoya has extensive experience and a wide network of contacts, both in the private sector (consultants, advisors, etc.) and in the public sector (Ministry of the Environment, SEA, SMA, environmental courts). He stands out for being pragmatic and highly effective in the results of his work.'
Key clients
- Eletrans II & III
- Colbún
Work highlights
Advising Eletrans II and Eletrans III on numerous sanctioning proceedings before the Environmental Superintendence (ES), as well as regarding an ES inspection processes at the project, on an environmental damage claim and on general environmental matters.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Fernando Garrido; Matías Montoya

