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Nicolás Eyzaguirre

Work (56 2) 367 3026
Claro & Cia.

Work Department

Energy & Natural Resources, Environmental, Mining.


Partner. Energy & Natural Resources, Environmental, Mining.


Nicolás Eyzaguirre focuses on Natural Resources and Environmental Law, Energy, Mergers and Acquisitions, and Litigation and Arbitration. He has represented a large group of local and international clients. He joined Claro & Cia. in 1994, became an associate in 1998 and he became partner in 2009. During 2001-2002 he was a foreign associate at Sullivan & Cromwell in New York.


Languages: Spanish and English.


LL.M., Northwestern University School of Law, 2001. Certificate in Business Administration, Northwestern University Kellogg Graduate School of Management, 2001. J.D., Pontificia Universidad Católica de Chile,1997.



Within: Environment

Claro & Cia. regularly advises on the environmental side of construction projects involving renewable energy, hydro, thermo-electric and combined-cycle power plants, as well as transmission lines and oil and gas pipelines. The practice advised Chilean miner Anglo American Sur on the environmental aspects of several matters, including the modification and maintenance of pipelines that carry mineral pulp, tailings and recycled water. Nicolás Eyzaguirre is highly regarded.

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Projects and infrastructure

Within: Projects and infrastructure

Claro & Cia. has very highly-rated project finance and project development practices, which advise on the development, construction, operation, acquisition, disposition, ownership and financing of energy-related and infrastructure projects. Rodrigo Ochagavía and Ariel Mihovilovic acted for The AES Corporation subsidiary Alto Maipo, and AES Gener (as sponsor), in the development, construction and refinancing of a 531MW hydropower plant and related interconnection and transmission assets; the mandate included the negotiation of both the operational and construction agreements. Other key advisers include Luisa Núñez, Nicolás Eyzaguirre, Jorge Martín and José Luis Ambrosy; senior associates to note include Gerardo Otero and Andrea Sougarret.

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Chile: Energy and natural resources

Electricity/oil and gas

Within: Leading lawyers

Nicolás Eyzaguirre - Claro & Cia.

Within: Electricity/oil and gas

Widely respected for its energy-sector capabilities, Claro & Cia.’s practice typically represents clients in the development, construction, operation, acquisition and financing of energy and infrastructure projects. Recent mandates saw Rodrigo Ochagavía and Ariel Mihovilovic lead advice AES Corporation subsidiary Alto Maipo, and AES Gener (as sponsor), on all aspects of the development and $2.2bn refinancing of a 531MW hydropower plant and related interconnection and transmission assets; and José Luis Ambrosy and Nicolás Eyzaguirre act for Elecnor-affiliate Celeo Redes Operación Chile in a $600m project bond issue. Ambrosy’s ‘strengths include great knowledge of all the issues involved in the financing of infrastructure projects’. Luisa Núñez and senior associate Gerardo Otero are also highly regarded.

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Within: Mining

Claro & Cia.’s practice includes advising on acquisitions, sales and the financing of mining-asset development; licensing, permits and rights of way; assisting with governmental relations and minimising environmental liabilities. The team advised Chile’s third largest copper-producer, Anglo American Sur, on filings made before the Geology and Mining National Service to move tailings from one dam to another. Nicolás Eyzaguirre is highly rated.

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