This is the 4492nd most frequent Polish word.
koncernu
The Polish word "koncernu" means "of the corporation" or "of the concern" (genitive singular form).
Here, 'koncernu' means 'corporation' in the genitive case and indicates possession.
Koncernu udało się wprowadzić nową technologię na rynek.
The corporation managed to introduce new technology to the market.
In this example, 'koncernu' is used in the genitive case to describe belonging ('corporation's').
Władze koncernu zorganizowały konferencję prasową.
The corporation's authorities organized a press conference.
'Koncernu' in this sentence is also in the genitive case, showing association ('corporation's engineers').