Energy and Natural Resources


Sebastián is the Managing Partner of PBP. Thanks to his extensive experience and strategic vision, he co-heads the Energy department and has been involved in landmark projects in Ecuador.

Sebastián Pérez-Arteta has been the Managing Partner of the firm for more than 20 years and has a longstanding commercial, investment and public and private contracts practice, with a focus on energy and projects in Ecuador. Due to his extensive track record, which includes several landmark transactions in the country, he is recognized as a leading figure in these fields. He frequently advises local and foreign investors on complex negotiations and transactions and public bids. In his capacity as Managing Partner, Sebastián has been involved in most of the relevant cases or matters entrusted to the firm.

He provides clients and PBP´s team with strategic advice based on his in-depth knowledge of the Ecuadorian market, his practical approach and business acumen. Clients value his ability to see the big picture and his dispute resolution skills.

Sebastián has had extensive experience in the government, giving him a unique insight into both international and local matters. In his role as Private Secretary and Advisor to the Minister of Industry, Commerce and Integration (1982-1983) he gained a deep understanding of the Ecuadorian public sector and its interaction with private companies. He served as Counselor of the Embassy of Ecuador in Washington (1984-1987), which allowed him to work with multilateral organizations, thoroughly understanding foreign investors’ needs and how they relate to the Ecuadorian system and the country’s interest in attracting investment. He also served as Ecuador’s Deputy Minister of Finance (1992-1993), where he was involved in the preparation of several laws and regulations that organized and clarified the country’s public finances.






Pérez Bustamante & Ponce (1978 – present)

Private Secretary and Advisor to the Minister of Industry, Commerce and Integration, Ecuador (1982 – 1983)

Counselor, Embassy of Ecuador in Washington (1984 – 1987)

Deputy Minister of Finance, Ecuador (1992 – July 1993)

Member, Board of Directors, Pichincha Chamber of Industry, Ecuador (1992 – 1993)

Member, Board of Directors, Quito Chamber of Commerce, Ecuador (1998 – 2000; 2002 – 2006)

Arbitrator, Quito Chamber of Commerce, Ecuador (1998 -present)

Member, Board of Directors, Internal Revenue Service, Ecuador (1998 – 2000)

Member, National Securities Council, Ecuador (1999 – 2006)

Pontificia Universidad Católica del Ecuador, Quito (Doctor of Jurisprudence, 1983)

Universidad de Navarra, Pamplona, Spain (Degree in Law, 1978)

The Legal 500, 2023 (Energy and natural resources)

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“Leading Individual”

Chambers Latin America 2021 (Energy & Natural Resources)

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Department co-head Sebastián Pérez-Arteta is commended by a client for being a “very good mining lawyer with a lot of experience advising on the corporate issues that arise in mining projects.” He also provides particular expertise assisting clients with their energy and infrastructure projects, routinely advising on public bidding processes.

Chambers Latin America 2020 (Energy & Natural Resources)

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“Co-head of the department Sebastián Pérez-Arteta garners praise from a client for being “available 24/7,” while another source endorses his regulatory practice, saying: “He is a very important mining adviser.”

The Legal 500, 2019 (Energy & Natural Resources)

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“Leading Individual”

Chambers Latin America 2019 (Corporate & Commercial)

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“Sebastián Pérez-Arteta is recognized for his long-running experience in the corporate and commercial sphere, and offers a particular focus in representing international investors from various jurisdictions across Asia”

Chambers Latin America 2019 (Energy)

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“Department co-head Sebastián Pérez-Arteta is endorsed by market observers as a “very well-respected, very good energy lawyer.” His areas of expertise include public bidding and the negotiation of mining concessions, as well as day-to-day regulatory advice”

Chambers Latin America 2018 (Corporate & Commercial)

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Sebastián Pérez-Arteta is well recognized by clients for being “a reliable consultant with an in-depth knowledge of the Ecuadorian market; he has an excellent relationship with us and supports our needs directly,” with sources adding: “He is an important practitioner”

Chambers Latin America 2018 (Energy)

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“Onlookers praise Sebastián Pérez-Arteta, commenting: “He provides a consolidated overview,” and going on to add: “He helps us to achieve satisfactory results.” Peers note: “He’s a good lawyer, without a doubt,” and state that “he’s very knowledgeable”

Ecuador Bar Association

International Bar Association