The planning, assumption and execution of construction and civil engineering works of any kind, also in the form of general contracting; the execution, renovation and maintenance of railway tracks and railway works in general; the rehabilitation of concrete structures; the execution of road pavements and related works; the rental of construction machinery and vehicles; the execution and management of landfills; the assumption of representations; the purchase, sale and management of real estate; the purchase and holding of participations; the execution of commercial and financial operations in general.