Norsk Hydro: Notice of Annual General Meeting 2026

Notice is given that the Annual General Meeting 2026 of Norsk Hydro ASA will be held on Wednesday, May 7, 2026, at 10:00 (CEST).

The Annual General Meeting will be held as a digital meeting only, via Lumi AGM on https://dnb.lumiconnect.com/100-944-148-571 and shareholders are invited to participate digitally. It is also possible to vote in advance or grant a proxy.

Please refer to the attached guide for information on online participation. The notice including appendices is attached. All relevant documents may also be found on hydro.com/generalmeeting. Owners of shares held in custodian accounts will find further information in the notice.

This notice was by error not published on OSE on April 14th Investor contact: Baard Erik Haugen +47 92497191 erik.haugen@hydro.com Media contact: Anders Vindegg +47 93864271 Anders.Vindegg@hydro.com

This information is subject to the disclosure requirements pursuant to Section 5-12 the Norwegian Securities Trading Act

List of appendices Notice to Annual General Meeting May 7, 2026 Appendix 1 The annual accounts and the Board of Directors' Report 2025 and the auditor’s report for the financial year 2025 Appendix 2 Remuneration policy for executive management Appendix 3 Remuneration report on executive remuneration 2025 Appendix 4 The recommendation from the Nomination Committee Appendix 5 Form for voting and proxy Appendix 6 Guide on digital attendance Appendix 7 Proposal from shareholder to investigate establishment of small modular reactor(s) including the Board of Directors’ response Appendix 8 Proposal from shareholder to assess how nuclear power could be part of the Group’s energy sourcing including the Board of Directors’ response Appendix 9 Proposal from shareholder that Hydro must assess engagement in nuclear power including the Board of Directors’ response