Provision of masonry work, formwork, laying of iron and concrete reinforcements for residential, commercial and other buildings, and services in the field of crane operation. May establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, conduct all business directly or indirectly related to its purpose, acquire, encumber, sell and manage real estate in Switzerland and abroad, arrange financing for its own account or for third-party account, and provide security for liabilities of affiliated companies.