Construction, purchase, sale, rental and planning of real estate as well as execution of activities in the field of metal processing in the building materials industry and trade in vehicles. May act as a consultant in related fields and trade in such products, establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, and conduct all business directly or indirectly related to its purpose, acquire, encumber, sell and manage real estate in Switzerland and abroad, also arrange financing for its own account or for third-party account, and provide guarantees and sureties for subsidiaries and third parties.