Diego Grisolle > Rubio Leguía Normand > Lima, Peru > Lawyer Profile

Rubio Leguía Normand

Work Department


Diego is a partner of the Natural Resources: Mining and Environmental Practice Areas, specializing in mining, environmental, commercial and compliance law.


He advises companies on contractual, regulatory and environmental aspects related to the development of mining projects.

Diego has significant experience in the negotiation and execution of operations related to the acquisition of projects and / or mining companies; transfer, assignment, option contracts, mining exploration and exploitation agreements, royalties, joint venture, due diligence, financing, identification and permit management; as well as advice on audit procedures, sanctions and environmental matters related to the use of natural resources.

Before joining Rubio Leguía Normand, he was a partner of García Sayán Abogados and internal legal advisor to Compañía de Minas Buenaventura S.A.A.

Diego was President of Instituto Nacional de Derecho de Minería, Petróleo y Energía during 2012-2103.


Spanish, English


  • Lima Bar Association.
  • National Institute of Mining, Petroleum and Energy Law.
  • Rocky Mountain Mineral Law Foundation.
  • Prospectors and Developers Association of Canada – PDAC.


  • Diploma of Studies in Environmental Law, Pontificia Universidad Católica del Perú, 2005.
  • Attorney at Law, Universidad de Lima, 1999.

Lawyer Rankings

Peru > Projects and infrastructure

A multidisciplinary team at Rubio Leguía Normand handles both infrastructure and general project work, and is particularly strong on the financing side under practice co-heads Andrés Kuan-Veng and Carlos Arata, both banking and finance specialists. Fellow co-head and administrative law specialist Milagros Maraví is highly rated for her PPP and concessions expertise; she led advice to Citybike Miraflores (Grupo Moventia) on its implementation of a public bicycle scheme in the districts of San Isidro and Miraflores in Lima. Mining and natural resources partner Diego Grisolle is another key member of the team.

Peru > Energy and natural resources > Mining

A strong, senior team at Rubio Leguía Normand is steered by seasoned mining lawyer Xennia Forno, a market leader with over 40 years’ experience, Diego Grisolle, who handles regulatory and commercial matters in relation to all extractive industries, and Emil Ruppert, who is less active on current matters but equally experienced. Consequently, the firm attracts significant industry players as clients, including Anglo American, Aluminum Corporation of China and Nexa Resources, while recent instructions included acting for Newmont Perú on the negotiation and execution with Minsur of several contracts for the development of five exploration projects. The firm is cultivating an effective junior bench that includes the much-praised principal associate Miguel Angel Soto, who advises on project management, including conflicts; and senior Nancy Ogata, a specialist in regulatory and administrative matters relating to the mining and hydrocarbon sectors. Orion Resources Partners and Kirkland Lake Gold are recent client gains. Since publication, Soto has been raised to the partnership – effective Janaury 2022.

Peru > Environment

Rubio Leguía Normand advises across a broad sector base, acting for some significant companies in the manufacturing, mining, construction, retail and agriculture industries, among others. Clients include Jockey Plaza, Belcorp and Frontera Energy. Clean development mechanisms (CDM) and offset projects are niche areas of expertise, along with other green initiatives coming to market. The team has strength at both senior and junior levels, comprising top mining lawyer Xennia Forno and environment and natural resources partner Diego Grisolle, who co-lead the practice. Stand out senior associate Miguel Angel Soto focuses on environmental compliance, licensing and social conflicts (mainly in the mining and energy sectors); fellow senior Nancy Ogata is also worthy of mention. Since publication, Soto has been promoted to the partnership – effective January 2022.