HDD drilling under the Vistula River Modernization of the railway line Lodz - Warsaw Construction of the Oil Terminal in Gdansk HDPE PKN Orlen SA in Płock Construction of a reservoir park at OLPP Koluszki Warsaw Metro Construction of the E75 Rail Baltica railway line Warsaw - Bialystok Expansion of the existing plant repair rolling stock - implementation of stage II of the investment in Libiszów Expansion of the siding railway station in TP No. 74 in Ostrów Wielkopolski Construction of the South Hospital in Warsaw Modernization of the railway line Warsaw - Lodz stage II Construction of the overhead line 110KV Koluszki - Brzeziny Łódź Chojnywater pumping station Construction of the MPS Depot for the F-16 Construction of the Track System Kozienice Power Plant with the SRK system and the power industry Construction of MPS-1 and MPS-2 Poznan Krzesiny Construction of the hallŁódź Agglomeration Railway Construction of the PTA installation in Włocławek Construction of approach lights Rzeszów Jasionka References