Administrative and technical management of properties; construction and acquisition of properties; construction management; maintenance and renovation work; trade in goods of all kinds; acquisition and management of participations and assets of all kinds as well as their financing; provision of services in the field of economic consulting; assumption of trust, investment, financial and operational consulting functions; participations; acquisition, encumbrance, sale and management of real estate; financing and provision of guarantees and sureties for subsidiaries and third parties.