Investments in companies of the construction industry and mechanical engineering; it carries out planning and design of buildings and planning systems, corresponding software, execution of renovation and new construction projects, assumption of construction management tasks, execution of general contractor mandates and other services in the construction and related fields, as well as trade with and installation and maintenance of goods and accessories in the field of cooling, electrical, petrochemical, oil and gas-related building technology worldwide; complete purpose description according to the articles of association.