Mandatory notification of trade by Primary Insider

Norske Skog ASA ("Norske Skog", Oslo Børs Ticker: NSKOG) has been notified that the following transaction has been completed today, 27 April 2026, by a primary insider in Norske Skog:

Richard Herman Heiberg, board member and primary insider in Norske Skog, has today bought 10,000 shares in Norske Skog for an average price of NOK 48.45 per share. After the transaction, Richard Herman Heiberg holds in Norske Skog 10,000 shares.

Please refer to the attached notification of trading for further details.

This information is subject to the disclosure requirements in the EU Market Abuse Regulation (EU 596/2014 article 19) and section 5-12 of the Norwegian Securities Trading Act.

For further information, please contact:

Even Lund, Senior Vice President Corporate Finance, ir@norskeskog.com, +47 90 61 29 19