Engineering, design and construction of residential and non-residential buildings, improvement infrastructure, highways and related facilities, tram and trolleybus lines and related facilities, railway lines incl. buildings and related facilities, ports incl. buildings and related facilities, airports incl. buildings and related facilities, coast protection and geo-protection equipment, transmission and distribution networks in the field of electricity supply, heat supply, gas supply, water supply and related facilities, hydrotechnical, hydropower and hydro melioration facilities and systems, purification facilities, waste treatment facilities and installations , construction and closure of landfills. Reconstruction, rehabilitation and repair of the objects listed above. Delivery and installation of machines, equipment, installations and means of transport for the above-mentioned objects. Demolition and destruction of buildings and facilities.