Acquisition, holding and sale of commercial and residential properties in Switzerland, management and brokerage of plots of land, planning and execution of new and renovation projects; may grant loans or other financing to its direct or indirect parent companies as well as their direct or indirect subsidiaries and provide security of any kind for liabilities of such other companies, including the granting of mortgages or the fiduciary transfer of the company's assets or the provision of guarantees of any kind, whether against payment or not.