Supply, including import and export of wall, roof and construction elements, prefabricated houses and offices, as well as providing services for wall, facade and construction types in Switzerland and abroad. Acquisition, management and disposal of real estate and company participations in Switzerland and abroad; renting, acquiring, renting or disposing of properties in Switzerland and abroad. Exploitation of patents and licenses; carrying out financing and establishing branches and subsidiaries in Switzerland and abroad (secondary purpose according to the articles of association).