Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Ground-water lowering and dredging of construction sites
Removal on construction sites
Activities of holding management: intervention in daily management, representation of companies on the basis of possession or control of the capital stock, etc.
Advice and assistance for companies and public sectors in planning, organization, search of yield, control, management information, etc.