There are two Brazilian development banks, the National Bank for Social and Economic Development (BNDES) and Banco da Amazônia. Banco da Amazônia is a public commercial bank focused on supporting development in the Amazon by providing attractive financing solutions for the eligible projects. Unlike the BNDES, Banco da Amazônia is a commercial bank where the government is the majority shareholder.

The senior debt loan for the Tucirui-Jurupari transmission line was provided by Banco da Amazônia. As Banco da Amazônia is willing to take on more risk than private commercial banks, its financing solutions provided better and more attractive interest rates. The solutions provided by the bank made the project commercially feasible for the Project Company.