Provision of services as construction manager, project manager, general contractor, architect, engineer as well as execution of planning and technical implementation work in the construction industry, provision of services related to the administration, rental, brokerage, operation, maintenance and upkeep of real estate; may establish branches and subsidiaries, participate in other companies, acquire, encumber, sell and manage real estate, arrange financing for its own account or for the account of third parties, and provide collateral for liabilities of affiliated companies.