I´m working with Strabag in the PMCHS Project for VP Codelco, this project consists of the transformation of the from open pit mine to underground mine, it is the most important project of this type in the develop in Chile. Budget scope is 450 USD millions, main works: 45 km of tunnels with drill and blast methodology, 3.5 km of vertical tunnels with raise boring methodology, 6.500.000 m3 of earthworks, 52.000 m2 of pavements, 44 km of vertical drillings with different methodologies.