Purchase and sale, acquisition, disposal, rental and management of real estate, planning and realization of real estate projects, renovation and refurbishment of real estate or real estate shares at home and abroad, participations, general floor coverings, may establish branches and subsidiaries, acquire patents and licenses of all kinds, participate in or acquire other domestic and foreign companies, provide financing for own or third-party account and grant guarantees and sureties for subsidiaries and third parties, trade with and transport and sell goods of all kinds at home and abroad as well as import and export building materials of all kinds.