Protection of the interests of luxury hotels and provision and brokerage of services for the benefit of such hotels, whether for own or third-party account, in particular in connection with the reservation of guest rooms; conclusion of contracts in the interest of the group or individual group companies (including their direct or indirect parent companies and their direct or indirect subsidiaries) and, in particular, granting of loans or other financing to such group companies and provision of collateral of any kind for their liabilities, including by way of pledges or security assignments and transfers of the company's assets or by way of guarantees of any kind, whether against payment or not; participations; acquisition, holding and disposal of real estate.