Hydraulic Engineering Construction, Bridge Construction, Highway Construction, Asphalting, Water-Supply Construction, Sewage Construction, Earthworks, Pumping Station Construction, Natural Gas Supply, Waterproofing, Terracotta Tile Roofing, Landscaping, Irrigation Systems, Automatic Irrigation Systems, Residential Renovation / Finishing, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 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 1 (03.09)

High-Rise Construction, Residential Construction, Rebuilding / Remodeling, Power Engineering Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Steel Building Construction, Earthworks, Drilling Works, Electrical Work / Indoor, Electrical Work / Outdoor, Lighting Systems, Renewable Energy Supply / Installations, Electric Welding, 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 1 (03.05)

High-Rise Construction, Residential Construction, Commercial Construction, Rebuilding / Remodeling, Earthworks, Waterproofing, Pouring Concrete, Pouring Foundations / Footings, Pouring Concrete Frame Structures, Concrete Pump Services, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04)