
Pérez Alati, Grondona, Benites & Arntsen advises on an array of banking and finance matters, including bond issuances, cross-border financings for renewable energy projects, global note issuance programs, syndicated credit facilities, and regulatory approvals. The team has particular expertise in sustainable finance and advises on innovative ESG transactions such as green bonds and social bonds. The practice is led by a highly experienced group of partners: Alan Arntsen, who leads on cross-border financings, restructurings, and sovereign debt matters, Diego Serrano Redonnet, who is well versed in capital markets, project finance, securitisation, debt restructuring, and regulatory advice, and Mariano Grondona and María Gabriela Grigioni, who are adept at advising on corporate finance, securities, trusts, restructurings, and capital markets regulations. Since publication, the practice group has been further strengthened with the promotion of Juan Ignacio Dighero to the partnership - effective as of January 2026.
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Key clients
- PBB Polisur
- Genneia
Work highlights
Advised Genneia, as borrower, on obtaining financing from Nederlandse Financierings - Maatschappij voor Ontwikkelingslanden, Development Finance Institute Canada and Société de Promotion et de Participation pour la Coopération Économique of up to $100m for the construction, commissioning and maintenance of two solar parks.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Mariano Grondona; Alan Arntsen; Diego Serrano Redonnet; María Gabriela Grigioni
