The importation of all building materials; the installation of windows, doors, verandas, as well as all work in the construction sector. It may create branches in Switzerland and abroad, participate in other companies, acquire or establish companies with an identical or similar purpose, carry out all movable and immovable transactions, provide guarantees, act as guarantor, grant loans to associates or third parties and conclude all contracts suitable for developing its purpose or relating directly or indirectly thereto.