Until 1968, its loans were earmarked for the construction of infrastructure works, such as seaports, highway systems, and power plants, that would generate enough income to enable a borrower country to repay the loan.
Ata que en 1968, os seus préstamos foron consignados para a construción de infraestruturas que produzan ingresos, como portos, redes de autoestrada, e plantas de enerxía, que xerarían suficientes ingresos para habilitar ao país a devolver o préstamo.