The construction of tunnels, ramps and galleries in the mining primary sector. Since its beginnings, Nortúnel has carried out its activities completing mining projects, from quarries to extraction mining, constructing both vertical wells, horizontal galleries and elevated gradient ramps. In order to meet the challenges of such a demanding sector as mining, the use of qualified and specialised staff is necessary, for this reason, Nortúnel counts on a high percentage of mining engineers, capable of managing projects and committed to ongoing quality, while meeting the highest safety demands.