The attractiveness of loans from Brazil's federal development bank faded with the introduction of new methodology to calculate interest rates.
The monetary authority indicated it will cut the base rate even more.
The peso made its strongest advance in nine months with the US decision to withdraw demands on Nafta's rules-of-origin. The US trade representative also raised concerns over Mexico's election, and a new business survey reveals optimism on Nafta 2.0.
As many as 19 highway projects have still not secured all their required financing.
The country was stuck in a holding pattern as it awaited the return of VP Martín Vizcarra, who was expected to replace Pedro Pablo Kuczynski as president.
Brazil's past governments provided financial support for Venezuela.
Such posts are considered key to arranging support from political parties in government coalitions.