Providing services in the construction industry, specifically executing general contractor work contracts, renovation and conversion work on or of residential, industrial and commercial buildings, construction planning and management, trading in building materials of all kinds, as well as transportation and recycling of building materials; can offer catering and party services, participate in or acquire other or similar companies, assume representations in its own or others' names, acquire and sell properties, establish branches and subsidiaries, provide financing for its own or others' accounts, and grant guarantees and sureties for subsidiaries and third parties.