With an investment of US$1.427 billion, ISA ENERGÍA, through its subsidiary Consorcio Transmantaro, brought the 220-kilovolt transmission line between the Chilota Substation and the new San Gabriel Substation into commercial operation. The project was executed for Minas Buenaventura, owner of the San Gabriel mining project, located in the Moquegua region at 4,900 meters above sea level.