all real estate transactions, in particular the purchase, sale, construction, rental, administration, management and development of all real estate, as well as all services in the field of real estate, throughout Switzerland. It may, in Switzerland or abroad, establish branches, participate in other companies, acquire all properties or real estate companies within the framework of its activities, acquire or establish companies with an identical or similar purpose, carry out all operations and conclude all contracts intended to develop its purpose or related directly or indirectly.