NHYKF - Norsk Hydro ASA 2021 Q4 - Results - Earnings Call Presentation February, 25 2022 09:12 AM Norsk Hydro ASA The following slide deck was published by Norsk Hydro ASA in conjunction with their 2021 Q4 earnings call. For further details see: Norsk Hydro ASA 2021 Q4 - Results - Earnings Call Presentation