Please see below information about transactions made under the share buy-back
program for Norsk Hydro ASA.

Announcement date of the share buyback program: September 23, 2022

End date of the share buyback program: March 29, 2023

Overview of transactions:

+---------------------+-------------------+----------------+-------------------+
|Date                 |Aggregate daily    |Average price   |Total transaction  |
|                     |volume (no. of     |(NOK)           |value (NOK)        |
|                     |shares)            |                |                   |
+---------------------+-------------------+----------------+-------------------+
|27.12.2022           |            134 000|           73.01|          9 783 166|
+---------------------+-------------------+----------------+-------------------+
|28.12.2022           |            134 000|           73.26|          9 816 545|
+---------------------+-------------------+----------------+-------------------+
|29.12.2022           |            135 000|           73.16|          9 876 087|
+---------------------+-------------------+----------------+-------------------+
|30.12.2022           |            135 000|           73.47|          9 918 126|
+---------------------+-------------------+----------------+-------------------+
|02.01.2022           |            134 000|           73.53|          9 852 417|
+---------------------+-------------------+----------------+-------------------+
|Previous transactions|          9 603 000|                |                   |
+---------------------+-------------------+----------------+-------------------+
|                     |                   |                |                   |
+---------------------+-------------------+----------------+-------------------+
|Total transaction    |                   |                |                   |
|under the program    |         10 275 000|           67,20|        690 447 244|
+---------------------+-------------------+----------------+-------------------+

Prior to the share buyback program Norsk Hydro ASA owned a total of 16 452 403
own shares. Following the above listed transactions, Norsk Hydro ASA owns a
total of 26 727 403 shares, corresponding to 1.29% of Norsk Hydro ASA's share
capital.

Attachment: An overview of all the completed transactions under the program for
the dates specified above is attached to this notification and available on
www.newsweb.no.

This is information that Norsk Hydro ASA is obliged to make public pursuant to
the EU Market Abuse Regulation and subject to the disclosure requirements
pursuant to Section 5-12 of the Norwegian Securities Trading Act.


Investor contact:
Line Haugetraa
Head of Investor Relations
+47 41406376
Line.haugetraa@hydro.com

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© Oslo Bors ASA, source Oslo Stock Exchange