Peru's mining industry posted in gains in August, helping to offset lower production of natural gas and manufacturing activity.
The US$75mn project was reactivated by President Macri's administration, and will benefit 75,000 drivers per day in Buenos Aires province.
The water utility will invest US$16mn to improve its systems after being fined for wastewater discharges in two southern lakes.
The public works ministry said that 18 companies are interested in the Rutas del Loa project.
The company seeks to extend the maturity date of its outstanding bonds.