The contract entails the execution of the second phase of the Desvío Arijón aqueduct In Santa Fe. Economic offers will be unveiled in approximately 60 days from now.
The airport will serve the tourist city of Cusco and replace the current Velasco Astete terminal.
Prosecutors responded that so far it has issued injunctions on several properties, and warned not to extend the measures to assets that are property of the state.
The project will be funded by the local wine producers, but could also become a public-private partnership.
Companies have until September 13 to express interest in the transaction, which is expected to be completed this year.
The project entails building a 36.5km four-lane road and is part of a series of works to improve highways near the Cristo Redentor border pass with Chile.
The Chinese company announced recently the acquisition of Brazilian container terminal operator TCP for nearly US1bn.