Sales, installation, maintenance and servicing of electrical installations, as well as services in the areas of renovations, building maintenance, construction and real estate consulting, furthermore trading in building materials, construction machinery and vehicles, including their import and export, as well as trading in goods of all kinds and renting out construction machinery and vehicles; may establish branches and subsidiaries, participate in other companies, acquire, encumber, sell and manage real estate, provide financing for its own or third-party accounts, and provide guarantees and sureties for subsidiaries and third parties.