High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Hydraulic Engineering Construction, Power Engineering Construction, Irrigation / Drainage Construction, Telecommunication Facilities / Network Construction, Power Line Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Steel Building Construction, Prefabricated Construction, Wind Power Plants, Corrugated Sheet Roofing, Sheet Metal Roofing, Terracotta Tile Roofing, Bitumen Sheet Roofing, Gutters / Downspouts Installations, Telecommunication and Signaling Systems, Metal Work, Electric Welding, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 1 (03.05), 03.06. HVAC / Gas Supply, Category 1 (03.06), 03.07. Hydraulic Structures, Category 1 (03.07), 03.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 3 (03.09), 03.10. Communication Systems (Telecommunication and Signaling Systems / Transmitters / Receivers / Antennas / Amplifiers), Category 1 (03.10)

High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Industrial Construction, Hydraulic Engineering Construction, Greenhouse Construction, Telecommunication Facilities / Network Construction, Water-Supply Construction, Sewage Construction, Industrial / Commercial Modular Construction, Steel Building Construction, Prefabricated Construction, Ventilation Systems Installation, Air-Conditioning Installation, Water Supply / Sewage Work - Indoor / Plumbing, Water Supply / Sewage Work - Outdoor, Pumping Station Construction, Melioration Systems, Electrical Work / Indoor, Electrical Work / Outdoor, Wind Power Plants, Burglar Alarm Installation, Video Surveillance, Fire Alarm Installation, Fire Suppression Installation, Access Control Systems, Smart House Systems, Intercom Systems / Local Networks, Telecommunication and Signaling Systems, Processing Equipment Erection, Metal Work, Electric Welding, Lightning Rods Installation, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 3 (03.05), 03.07. Hydraulic Structures, Category 3 (03.07), 03.08. Water Supply and Drainage / Melioration Systems, Category 1 (03.08), 03.10. Communication Systems (Telecommunication and Signaling Systems / Transmitters / Receivers / Antennas / Amplifiers), Category 3 (03.10)

High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Heavy Civil Construction, Sport Facilities Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Steel Building Construction, Prefabricated Construction, Wooden House Construction, Modular / Prefabricated Construction Other Activities - , Earthworks, Demolition, Residential Renovation / Finishing, Commercial Building Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04)

Steel Building Construction, Electrical Work / Outdoor, Lighting Systems, Rolled Roofing, Corrugated Sheet Roofing, Sheet Metal Roofing, Terracotta Tile Roofing, Gutters / Downspouts Installations, Roof De-Icing Systems / Solutions, Trucks, Crane-Manipulators, Metal Work, De-Icing Systems / Solutions

Greenhouse Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Steel Building Construction, Prefabricated Construction

Steel Building Construction, Polycarbonate / Glass Roofing, Ventilated Facades Installation, Facade Glazing / Curtain Walls, Aluminum Composite Panel Facing, Siding, Mosaic Making, Other - Facing, Metal Stairs, Glass Stairs, Modular Railing Installation, Metal Work