Telecommunication Facilities / Network Construction, Water-Supply Construction, Earthworks, Water Supply / Sewage Work - Indoor / Plumbing, Natural Gas Supply, Heavy Construction Equipment Rental, Industrial Mountaineering

High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Hydraulic Engineering Construction, Water-Supply Construction, Sewage Construction, Heating Systems Installation, Ventilation Systems Installation, Air-Conditioning Installation, Melioration Systems, Electrical Work / Indoor, Electrical Work / Outdoor, Lighting Systems, Wind Power Plants, Residential Renovation / Finishing, Commercial Building Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing, 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 2 (03.07), 03.08. Water Supply and Drainage / Melioration Systems, Category 1 (03.08)

Refrigeration Installation, Thermal / Heat Insulation, 03.04. Residential / Commercial and Industrial Buildings, Category 3 (03.04)