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)

Drilling Works, Other Works / Services - laboratory studies, 05.11. Engineering Geological Survey, Category 1 (05.11)

Earthworks, Drilling Works, 05.11. Engineering Geological Survey, Category 1 (05.11)

High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Asphalting, Prefabricated Construction, 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), 03.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 3 (03.09)