The execution of civil engineering works for superstructures and substructures, in particular renovation and reconstruction, the execution of excavations and transports, the execution of any other civil engineering work, the buying and selling and renting of building materials, tools and machinery, the management of a construction company, also in the form of general contractor and total contractor, the management, administration, rental, leasing and buying and selling of real estate. The company may carry out any other activity directly or indirectly suitable to promote the social purpose, establish branches, participate in companies with similar purposes.