Industrial Construction, Hydraulic Engineering Construction, Power Engineering Construction, Greenhouse Construction, Sport Facilities Construction, Industrial / Commercial Modular Construction, Waterproofing, Thermal / Heat Insulation, Vapor Sealing, Sound / Vibration Insulation, Sound Absorption / Acoustics, Rolled Flooring Installation, Special-Purpose Flooring Installation, Natural Stone Flooring, Ceramic Tile Flooring, Self-Leveling Floors, Terrazzo Mosaic Flooring, Mosaic Making, Other - Facing, Swimming Pool Construction, Sauna Construction, Residential Renovation / Finishing, Commercial Building Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing

Power Engineering Construction, Electrical Work / Indoor, Electrical Work / Outdoor, Renewable Energy Supply / Installations

High-Rise Construction, Residential Construction, Hydraulic Engineering Construction, Power Engineering Construction, Tunnel Construction, Earthworks, Blasting Works, Drilling Works, 01.07. Hydraulic Structures, Category 1 (01.07), 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), 03.08. Water Supply and Drainage / Melioration Systems, Category 1 (03.08), 03.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 3 (03.09)