35 Business management, business administration..
36 Financial services, monetary services, real estate affairs; rentl of office premises, shop premises and restaurants.
37 Building, erection, construction and restoration, renovation, demolition and decontamination of energy storage plants and industrial plants, waste disposal and environmental projects, rock shelter, shelters, tunnels, reservoirs, mining plants and fortificatory plants, roads, bridges, railways, airports, harbours and waterworks; construction and installation of heavy steel constructions such as storage tanks, silos, pressure chambers and pressure tanks, barking machines and barking drums; installation of piping systems; installation of mechanical equipment; construction and installation of electrical high voltage and low voltage systems and instrument systems, telecommunication systems and control systems; maintenance and rebuilding of power plants, distribution plants, transformers, control equipment; construction and installation of cathodic and electrochemical anti-corrosion; repair and maintenance of mechanical and electrical equipment; finishing and anti-corrosive treatment of bridges, vessels and tanks and cisterns.
39 Packaging and storage of goods; arranging travels.
40 Premanufacturing of piping systems; finishing and anti-corrosive treatment of bridges, vesels and tanks and cisterns.
41 Training/education; arranging of instructions.
42 Providing of food and drink; temporary accommodation; scientific and industrial research; testing piping systems.