The operation of a construction company, active notably in building metallurgy work, such as locksmithing, the installation of doors, sliding doors, and windows, as well as the installation of barriers, guardrails, grilles, verandas, glass walls, portals, metal frameworks, and facade structures. The company may establish branches and subsidiaries in Switzerland and abroad and take stakes in other companies in Switzerland and abroad as well as carry out all operations that are directly or indirectly related to its corporate purpose. The company may acquire, mortgage, sell, and manage real estate. It may engage in financing for its own account or for the account of third parties as well as grant guarantees and securities to its subsidiaries and to third parties.