Coronel & Pérez regularly handles complex, high-value disputes across Ecuador. The team is particularly active in ICC arbitrations, commercial litigation and administrative proceedings. It has notable experience in mining-related disputes for multinational corporations, cross-border arbitrations, and disputes arising from infrastructure projects, acting for both public sector entities and private companies. Leadership of the practice is shared between firm co-founders César Coronel Jones (litigation and arbitration) and Hernán Pérez Loose (arbitration and public law); Jorge Sicouret Lynch (litigation and arbitration, particularly in relation to infrastructure projects, concessions and PPPs); and Quito-based César Coronel Ortega, who is noted for his role in commercial and public contract disputes. Also in Quito, Félix Reyes Chévez regularly handles disputes in the energy sector. A strong senior associate bench includes Quito-based Jesús Longo (tax and administrative litigation) and Lorena Barrazueta; and disputes all-rounders Adrián Pérez Salazar and Ángel Gaibor. Oscar Del Brutto left the firm in January 2026. All named lawyers are based in Guayaquil, unless otherwise specified.
Legal 500 Editorial commentary
Accolades
Client satisfaction: NPS ®
Testimonials
Collated independently by Legal 500 research team.
- We worked with two senior partners as expert witnesses in an international arbitration: Hernan Perez Loose and Cesar Coronel Jones. Both were excellent. And they were supported by an impressive team of other partners and associates.
- The combination of expertise in private and public law, along with the deep experience of the senior practitioners in the legal landscape of Ecuador, makes them highly credible as testifying experts on Ecuadorian law.
Key clients
- Codelco
- Grupo Ferrer Internacional
- Egis Internacional
- Amdocs
- AECON
- Municipality of Guayaquil
- Dow Chemical
- Perfumes Factory
- AECOM
- Metropolitan Touring
- Equisuiza
- Yilport
Work highlights
Representing Codelco in two major disputes, one being an ICC and one being an ICSID arbitration arising from its investment in Llurimagua cooper project in Ecuador.
Represented Grupo Ferrer Internacional in an ICC arbitration against New Yorker concerning enforcement of the arbitration clause and termination of the agreement.
Represented Egis in six court proceedings in Ecuador against public entities arising from its role as auditor of the Pascuales–Cuenca Polyduct.
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.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
César Coronel Jones; Hernán Pérez Loose; César Coronel Ortega; Jorge Sicouret Lynch
Other key lawyers
Félix Reyes Chévez; Jesús Longo; Lorena Barrazueta; Adrián Pérez Salazar; Ángel Gaibor