Standard form for notification of major holdings

4.98% 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):


	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:

19.9.2025
6. Total positions of person(s) subject to the notification obligation:
	% of shares and voting rights	% of shares and voting rights through financial	Total of both in %	Total number of shares and voting
	(total of 7.A)	instruments (total of 7.B)	(7.A + 7.B)	rights of issuer
Resulting situation on the date on which	5.00% shares	0.24% shares	5.25% shares	1,978,489,136 shares
threshold was crossed or reached	5.00% voting rights	0.24% voting rights	5.25% voting rights	1,978,489,136 voting rights
Position of previous notification (if	4.98% shares	0.26% shares	5.24% shares

0.26% voting rights

5.24% 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		99,019,454 shares 99,019,454 voting rights		5.00% shares 5.00% voting rights


SUBTOTAL A	99,019,454 shares		5.00% shares
	99,019,454 voting rights		5.00% 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	4,414,387 shares	0.22% shares
Receipt (US6565316055)				4,414,387 voting rights	0.22% voting rights
				478,412 shares	0.02% shares
CFD	N/A	N/A	Cash	478,412 voting rights	0.02% voting rights
				4,892,799 shares	0.24% shares
			SUBTOTAL B	4,892,799 voting rights	0.24% 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:

The disclosure obligation arose due to voting rights attached to shares and votes for BlackRock, Inc. going above 5%.

Done at 12 Throgmorton Avenue, London, EC2N 2DL, U.K. on 22 September 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 Holdings GK
BlackRock Japan Co., Ltd.			Below 5%

BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
Trident Merger, LLC
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 Finance Europe 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 Australia Holdco Pty. Ltd.
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 Group 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 Delaware Holdings Inc.
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 Delaware Holdings Inc.
BlackRock Fund Advisors		Below 5%

BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, 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 HK Holdco Limited
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 (Netherlands) B.V.
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 Canada Holdings ULC
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 Capital Holdings, 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 Finance Europe 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) Holdco Pte. Ltd.

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 Finance Europe 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 Holdings, 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

[email protected]

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

[email protected]

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)

AI Terminal

Norsk Hydro ASA

3684_mrq_2025-09-22_8c8806ef-6607-4f0b-8121-e83bf20e90d3.pdf

Standard form for notification of major holdings

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

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

10. Additional information:

Annex

A: Identity of the person subject to the notification obligation

E-Mail

Phone number / Fax number

B: Identity of the notifier, if applicable

Full name

Contact address

E-Mail

Phone number / Fax number

C: Additional information:

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