To meet the requirements imposed by the work and the nature of the soils, the Deep Foundations and Special Works department was founded in 2010 with high-performance equipment, a management staff with long experience exceeding 30 years, and a skilled worker staff. 'great technicality.

More than 70,000 linear meters of piles of all diameters have been built, for engineering works and civil buildings in Tunisia and West Africa, and more than 16,000 square meters of retaining sheet piles and secant piles have also been built.