Provision of all services of a general contractor and, if applicable, total contractor, in particular development, planning and execution of construction projects of all kinds as well as acquisition, creation, holding, management, rental and sale of real estate; may establish branches and subsidiaries, participate in other companies, acquire, encumber, sell and manage licenses, patents and other intangible assets, arrange financing for its own account or for the account of third parties, and grant guarantees and warranties for subsidiaries and third parties.