Umicore — Major Shareholding Notification 2026

Apr 17, 2026

1. Issuer

2 - 13 +

2 +

A +

1) Status of the notification

	Final
Identification number 0401-574-852	Name UMICORE

3) Reason for the notification

	Acquisition or disposal of voting securities or voting rights
Downward crossing of the lowest threshold

4) Notification by

A parent undertaking or a controlling person

5) Persons subject to the notification requirement

Name	Address (for legal entities)
Amundi SA	91-93 boulevard Pasteur - 75015 Paris - France	+

6) Persons that dispose of voting rights (only to be filled in if art. 7 of the Law applies)

1. Date on which the threshold is crossed

09/04/2026 (DD/MM/YYYY)

8) Threshold that is crossed (in %)

persons referred to in Sections 5 and 6

If the holding has fallen below the lowest threshold, you have the option of not entering any numbers in Section 10

3

9) Denominator

246 400 000 Please enter the denominator before filling in the data

10) Notified details

A) Voting rights	Previous notification	After the transaction
	# of voting rights				# of voting rights% of voting rights
Holders of voting rights		Linked to securities	Not linked to thesecurities	Linked tosecurities	Not linked to thesecurities
Amundi SA	0	0		0,00%
Amundi Asset Management SAS	7 760 713	6 816 808		2,77%
CPR Asset Management SA	139 120	323 886		0,13%
Societe Generale Gestion SA	0	0		0,00%
Amundi Fund Management Ltd(Hungary)	0	5 364		0,00%
Amundi Austria GmbH	0	4 222		0,00%

Amundi Deutschland GmbH	0	2 963	0,00%	1	-
Subtotal	7 899 833	7 153 243	2,90%	S	+
	TOTAL	7 153 243	2,90%

Start with "groups" of holders. Add subtotals with S**, and then finish with the persons who are "alone".**

For groups, start with the ultimate controlling natural person or legal entity. The totals, subtotals and % will be updated once you have clicked on .

B) Equivalent financial instruments	After the transaction
Holders of equivalentfinancial instruments	Type of financial instrument		Expiration date Exercise period ordate	# of voting rightsthat may beacquired if theinstrument isexercised	% of voting rights	Settlement
				0	0,00%		+
	TOTAL			0	0,00%
	The totals will be updated once you have clicked on
	TOTAL (A & B)				# of voting rights % of voting rights
			CALCULATE	7 153 243	2,90%

11) Full chain of controlled undertakings through which the holding is effectively held, if applicable

12) In case of proxy voting for only one GM

				(DD/MM/YYYY)
Holder	will cease to hold /will hold again	0	voting rights as of

13) Additional information

The disclosure obligation arose due to the downward crossing of 3% by Amundi SA group. Amundi has centralised the exercise of voting rights and these entities have delegated voting to the Voting &
Corporate Governance team of Amundi Asset Management.

Done at Paris
On		13/04/2026 (DD/MM/YYYY)
Name & capacity	Aya MOHAMED ABDALLAHCompliance OfficerAmundi	Signature

For security reasons, the unsigned form in xlsx format should be transmitted to trp.fin@fsma.be. You can do this manually OR if you have MS Outlook at your disposal via the "Save & Send" button.

In addition, a signed copy in PDF format should also be transmitted.