Manufacture, trade and distribution of buildings and building components, in particular windows, as well as provision of services in the construction industry. The company may, by decision of the management, establish branch offices and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire, encumber, sell and manage real estate in Switzerland and abroad, provide financing for its own account or for the account of third parties, and grant guarantees and warranties for subsidiaries and third parties.