Norsk Hydro ASA

Major Shareholding Notification • Jul 3, 2025

Standard form for notification of major holdings

4.97% voting rights

applicable)

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the NOR-FSA)

1. Identity of the issuer: NORSK HYDRO Drammensveien 264 Oslo NO-03 Norway LEI: 549300N1SDN71ZZ8BO45 2. Reason for the notification (please tick the appropriate box or boxes): ☐ An acquisition or disposal of shares or voting rights ☐ An acquisition or disposal of financial instruments ☐ An event changing the breakdown of shares or voting rights ☒ Other (please specify): Group restructure following the acquisition of HPS Investment Partners ("HPS") 3. Details of person subject to the notification obligation: Name: City and country of residence: BlackRock, Inc. Wilmington, DE U.S.A 4. Full name of shareholder(s) (if different from 3.): 5. Date on which the threshold was crossed or reached: 1.7.2025 6. Total positions of person(s) subject to the notification obligation: % of shares and voting % of shares and Total number of rights through financial Total of both in % voting rights shares and voting instruments (7.A + 7.B)
(total of 7.A) rights of issuer (total of 7.B)
1,978,489,139 Resulting situation
4.90% shares 0.26% shares 5.17% shares shares on the date on which
threshold was 4.90% voting rights 0.26% voting rights 5.17% voting rights 1,978,489,139
crossed or reached voting rights
Position of previous 4.97% shares 0.48% shares 5.45% shares

0.48% voting rights

5.45% voting rights

7. Notified details of the resulting situation on the date on which the threshold was crossed or reached:

A: Shares and voting rights
Class/type of shares	Number of shares and voting rights		% of shares and voting rights
ISIN code (if possible)	Direct (SMA 9:5)	Indirect (SMA 9:6 and 9:7)	Direct (SMA 9:5)	Indirect (SMA 9:6 and 9:7)
NO0005052605		97,140,416 shares 97,140,416 voting rights		4.90% shares 4.90% voting rights
SUBTOTAL A	97,140,416 shares		4.90% shares
	97,140,416 voting rights		4.90% voting rights

B: Financial Instruments according to SMA 9:6a
Type of financial instrument	Expiration date	Exercise/ Conversion Period	Physical or cash settlement	Number of shares and voting rights	% of shares and voting rights
American Depositary	N/A	N/A	Physical	4,112,974 shares	0.20% shares
Receipt (US6565316055)				4,112,974 voting rights	0.20% voting rights
				1,178,754 shares	0.05% shares
Securities Lent	N/A	N/A	Physical	1,178,754 voting rights	0.05% voting rights
				5,291,728 shares	0.26% shares
			SUBTOTAL B	5,291,728 voting rights	0.26% voting rights

8. Information in relation to the person subject to the notification obligation (please tick the applicable box):

☐ Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer.

☒ Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entity:

Name	% of shares and voting rights	% of shares and voting rights through financial instruments	Total of both
See Annex

9. In case of proxy voting: [name of the proxy holder]		will cease to hold [% and number]	voting rights as of

10. Additional information:

Group restructure following the acquisition of HPS Investment Partners ("HPS") https://www.blackrock.com/corporate/newsroom/press-releases/article/corporate-one/pressreleases/blackrock-acquires-hps-investment-partners

Done at 12 Throgmorton Avenue, London, EC2N 2DL, U.K. on 02 July 2025

Annex

Full chain of controlled undertakings starting with the ultimate controlling natural person or legal entity;

Name	% of shares and voting rights	% of shares and voting rights through financial instruments	Total of both
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock (Singapore) Holdco Pte. Ltd.
BlackRock HK Holdco Limited
BlackRock Lux Finco S.a.r.l.
BlackRock Japan Co., Ltd.			Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Investment Management, LLC			Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock Group Limited
BlackRock Investment Management (UK) Limited			Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Investment Management (Australia) Limited			Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.

BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock International Limited		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock Holdco 4, LLC
BlackRock Holdco 6, LLC
BlackRock Institutional Trust Company, National Association		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock Holdco 4, LLC
BlackRock Holdco 6, LLC
BlackRock Fund Advisors		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Financial Management, Inc.		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock (Singapore) Holdco Pte. Ltd.
BlackRock Asset Management North Asia Limited		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock Group Limited

BlackRock Finance Europe Limited
BlackRock Asset Management Deutschland AG		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BlackRock Asset Management Canada Limited		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock Advisors, LLC		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock Group Limited
BlackRock Advisors (UK) Limited		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock (Singapore) Limited		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock Group Limited

BlackRock (Netherlands) B.V.		Below 5%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
Trident Merger, LLC
BlackRock Investment Management, LLC
Amethyst Intermediate, LLC
Aperio Group, LLC		Below 5%

A: Identity of the person subject to the notification obligation

Full name (including legal form for legal entities) BlackRock, Inc.

Contact address (registered office for legal entities) c/o 12 Throgmorton Avenue, London, EC2N 2DL, U.K.

E-Mail

emeadisclosures@blackrock.com

Phone number / Fax number

+44 (0) 20 7743 3650 / +44 (0) 20 7668 4045

Other useful information (at least a contact person for legal persons) Jana Blumenstein

B: Identity of the notifier, if applicable

Full name

Jana Blumenstein

Contact address

12 Throgmorton Avenue, London, EC2N 2DL, U.K.

E-Mail

emeadisclosures@blackrock.com

Phone number / Fax number

+44 (0) 20 7743 3650 / +44 (0) 20 7668 4045

Other useful information (e.g. functional relationship with the person or legal entity subject to the notification obligation)

C: Additional information: