In 2016, Dumas commenced work at the Fresnillo Mine, located in the Fresnillo District of Zacatecas.
The scope of work included the construction of two 305-metre-deep, 6.0-metre-diameter concrete-lined ventilation shafts, designed to improve underground ventilation and extend mine life.
Scope of Work
- Two 305m x 6.0m diameter concrete-lined ventilation shafts
- Associated shaft furnishings and ground support installations
