ArcelorMittal, the world's leading steel company, has already committed to invest US$1bn in one of the zones.
Unable to reach consensus with union leaders over health care coverage and other issues, state oil company Ancap has been forced to import refined products that it would normally produce itself.
The initiative entails a 13.9km light railway between the northern cities of La Serena and Coquimbo, although authorities warn that the design is still being discussed with communities.
The Ferrogrão project will connect country's grain-producing region in the Midwest to the state of Pará, comprising a 1,142-kilometer route.
The São Paulo state water utility will make the investment in the city of Itaquaquecetuba.
The tender entails the operation of more than half the routes of Santiago's bus system. Interested companies would have at least one month to prepare their offers.
The finance minister stated that, over the next three and a half years, the country will execute a total of 59 projects under a PPP model.