Despite a pledge by the state development bank BNDES to fund a majority of projects, the plan offers Brazil an opportunity to reduce corporate dependence on state loans for investment, Fleury said.
"I wouldn't expect this massive plan to be funded with local savings only - we just don't have enough resources to execute that plan," Fleury told reporters.
His remarks signal the challenges that Brazil faces as it looks to extend the nation's biggest-ever program to revamp its aging infrastructure and jumpstart ailing economic growth.
The government expects massive investments in the segment to be a game-changer for Latin America's largest economy, which is showing signs of stagnation after years of rapid growth.
President Dilma Rousseff unveiled the stimulus measures, and similar concessions for airports and seaports are expected in the coming weeks.
Government officials at the Cetip event, in which Latin America's largest securities clearinghouse and depositary launched a new bond trading platform, were optimistic that the plan would take off.
Otavio Yazbek, acting president of securities regulator CVM, said the plan could lure more buyers of so-called infrastructure notes, or local debt sold to fund port, road and logistics projects. The notes were created this year but have so far yielded one issuance.
"The government is recognizing the importance of developing a local debt market to help fund infrastructure investments," Yazbek said on the sidelines of the event. (Reuters)
