Sales and trading of products in the construction and building services sector, in particular building drainage, as well as consulting in technical, financial and entrepreneurial matters; the company may acquire, hold, sell and grant patents, copyrights, trademarks and other intellectual property rights as well as licenses of any kind, establish branches and subsidiaries, participate in other companies, acquire, encumber, hold, sell and manage real estate, provide financing for its own or third-party account, and provide guarantees and sureties for subsidiaries and third parties.