FONPLATA Development Bank, formerly known as Río de la Plata Basin Financial Development Fund, is a multilateral financial entity formed by the five countries of this South America sub-region: Argentina, Bolivia, Brazil, Paraguay, and Uruguay.

[1] FONPLATA was established on June 12, 1974 by the Fourth Meeting of Plata Basin Foreign Affairs Ministries.

[2] FONPLATA Development Bank aims to support its members' integration by financing medium and small-sized projects, prioritizing rural and border areas, and to complement development efforts by national institutions and other international cooperation agencies.

It has also supported productive and cultural development projects consistent with its mission of mitigating economic and social asymmetries.

It has supported the International Festival of Renaissance and Baroque Music, and the Santa Cruz de la Sierra International Theatre Festival, both of them organized by the Bolivian Association for Art and Culture (APAC for its acronym in Spanish).