Acquisition, management, rental, development and sale of properties and land; organization and realization of new and renovation construction projects; renovation of properties as well as trade and processing of building materials; investments; acquisition, encumbrance, sale and management of real estate; financing; provision of guarantees and sureties for subsidiaries and third parties as well as granting and taking up of loans; acquisition, holding, management and sale of trademarks, copyrights, patents, licenses and all kinds of intellectual property rights, in particular insofar as they are related to the main purposes of the company.