Combining regulatory expertise with enviable transactional credentials, Claro & Cia. is well known for large-scale transactions and project development matters. The seven-member mining and natural resources team is mandated by clients to advise at exploration and permitting stages, as well during financing, construction and operational phases. Highlights include advising Chilean chemical company SQM on an agreement with state-owned Codelco to co-develop lithium production in the Salar de Atacama. The group is led by mining, energy and environmental law expert, Nicolás Eyzaguirre, an adviser on high-stakes M&A, project development, and permitting. At associate level, Ximena Vargas is experienced in environmental impact assessments, permitting, and compliance; while Joaquín Garnham focuses on regulatory, environmental and administrative law in the mining and energy sectors.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- Over the past twelve months, Claro y Cía., especially the Natural Resources team that advises us, has played a central role in managing highly relevant environmental and mining matters for the Group and our shareholders. Their support has been consistent, technically outstanding, and strategically focused, encompassing litigation, permitting, regulatory compliance analysis, risk management, and the review of contracts essential to our operations. The nature of these matters—all of them sensitive and with a significant impact on the continuity and safety of our activities—demands precision, sound judgment, and flawless execution. Under the leadership of Nicolás Eyzaguirre, and with the outstanding contributions of Joaquín Garnham, Ignacio García, Joaquín Calderón, Ignacio Bas, and Cristóbal Valdés, we have had a highly competent, coordinated, and committed team dedicated to achieving excellent results. The department stands out for its unique combination of legal rigor, a deep understanding of the complex Chilean regulations, and a practical approach that directly addresses the real needs of our operations. Their ability to balance legal criteria with considerations of sustainability, operational continuity, and reputational protection makes them an invaluable strategic partner. The quality of their work is consistently high: they deliver clear, well-founded, and results-oriented analyses, with internal coordination that allows them to address sensitive matters in an orderly and efficient manner. They are, without a doubt, the kind of lawyers you can trust implicitly. Their competence, sound judgment, and consistency over time position them as the best choice among lawyers in top-tier leagues. One of the most significant milestones of the year was the negotiation and subsequent sale of certain mining concessions. The team actively participated in the entire negotiation process, contributing strategic clarity, legal soundness, and an exceptionally nuanced handling of the parties' positions. In addition to their decisive role at the negotiating table, they undertook the complete drafting of essential documents, ensuring impeccable contractual structuring fully aligned with the Group's interests. This mandate had an additional level of complexity, given that it was also necessary to handle the inheritance proceedings of the original owner of the concessions. The way in which Nicolás Eyzaguirre and his team coordinated both processes, maintaining timelines, standards, and comprehensive legal coverage, demonstrates their ability to face challenging scenarios without sacrificing efficiency or quality.
- Nicolás Eyzaguirre's role is evident in the way the team functions: he sets the direction, helps distinguish the essential from the incidental, and fosters a culture of excellence that is reflected in every product they deliver. His presence brings order, focus, and an expert perspective that raises the group's standards. Nicolás Eyzaguirre's influence is reflected in the team's work: streamlined processes, well-defined criteria, and a culture of excellence that never loses sight of confidentiality. His leadership elevates the quality of work and instills a level of trust that is hard to find in the legal market. With the outstanding contributions of Joaquín Garnham, Ignacio García, Joaquín Calderón, Ignacio Bas, and Cristóbal Valdés, the team combines technical expertise, professional maturity, and a work style that builds trust and adds sustained value.
- Claro & Cia holds a strong and respected position in the national mining and heavy metallurgy market. It delivers timely and accurate support tailored to company needs. Furthermore, its services are assigned to expert multidisciplinary teams, ensuring the necessary support for each situation.
- Nicolás Eyzaquirre is an exceptional guy, with thorough knowledge, well-informed, he knows the hard and the soft side of the industry.
- They have a complete understanding of the legal framework, past case law, and current trends, can anticipate potential scenarios, and are familiar with the worst-case scenario. They see what clients don't.
Key clients
- Anglo American Sur Division Los Bronces
- Sociedad Química y Minera de Chile
- Anglo American Sur Division El Soldado
- Fundición Talleres.
- Esco Elecmetal Fundición
- Glenfarne Group
- Eurus Energy
- Occidental Petroleum Corporation.
- Sociedad Contractual Minera Carola
- Compass Minerals Group
Work highlights
Advised SQM on an agreement with state-owned Codelco to co-develop lithium production in the Salar de Atacama under Chile’s National Lithium Strategy.
Advised EnfraGen (Glenfarne Group) on the mining and environmental due diligence aspects of its proposed acquisition of four large-scale photovoltaic projects in northern Chile.
Advised Occidental Petroleum Corporation on the regulatory framework governing lithium in Chile, including due diligence of mining concessions.
Practice head
Nicolás Eyzaguirre
