Planning and realization of renovation and new construction projects, in particular execution of plumbing and heating work, assumption of construction management, execution of orders as general contractor or total contractor, as well as trade in goods of all kinds; may establish branch offices and subsidiaries, acquire, encumber, sell and manage real estate, acquire, manage and sell copyrights, patents and licenses of all kinds, provide financing for its own account or for the account of third parties, grant guarantees and warranties for subsidiaries and third parties, trade in stocks, options and the like, and conclude currency transactions.