Execution of constructions of all kinds, in particular as general contractor, total contractor and builder, as well as all activities related thereto, purchase, sale, brokerage, development, management and encumbrance of properties and real estate, trade in building materials and provision of services for the planning and execution of constructions. May 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, as well as arrange financing for its own account or for third-party account, and provide guarantees and sureties for subsidiaries and third parties.