Umicore

Major Shareholding Notification • Dec 23, 2025

Transparency notification Form TR-1 BE PART I

1) Status of the notification

Final

2) Issuer

Name UMICORE Identification number 0401-574-852

3) Reason for the notification

Acquisition or disposal of financial instruments that are treated as voting securities

4) Notification by

A parent undertaking or a controlling person

5) Persons subject to the notification requirement

Name	Address (for legal entities)
Millennium International Management LP	c/o The Corporation Trust Company, 1209 Orange Street, Wilmington, DE 19801
Millennium Group Management Trust	c/o 399 Park Avenue, New York, NY, 10022
Millennium Group Management Llc	c/o The Corporation Trust Company, 1209 Orange Street, Wilmington, DE 19802
Israel Englander

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

Name	Address (for legal entities)

Please continue entering the information in part II concerning the persons referred to in Sections 5 and 6

Part II

7) Date on which the threshold is crossed

12/12/2025 (DD/MM/YYYY)

8) Threshold that is crossed (in %)

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

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 voti	ing rights	% of vot	ing rights
Holders of voting rights		Linked to securities	Not linked to the securities	Linked to securities	Not linked to the securities
Israel Englander	0	0	0	0.00%	0.00%

Millennium International Management LP	0	0	0	0.00%	0.00%	- 1
Subtotal						+ S
	TOTAL	0	0	0.00%	0.00%

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 equivalent financial instruments	Type of financial instrument	Expiration date	Exercise period or date	# of voting rights that may be acquired if the instrument is exercised	% of voting rights	Settlement
Millennium International Management LP	Swaps	29/12/2025	N/A	639,891	0.26%	cash	-
Millennium International Management LP	Swaps	12/12/2035	N/A	57,894	0.02%	cash	-
Millennium International Management LP	Swaps	18/12/2026	N/A	550,785	0.22%	cash	-
Millennium International Management LP	Swaps	31/03/2026	N/A	6,315,035	2.56%	cash	-
Millennium International Management LP	Swaps	05/01/2027	N/A	7,213	0.00%	cash	-
Millennium International Management LP	Swaps	02/10/2026	N/A	11,862	0.00%	cash	+
	TOTAL			7,582,680	3.08%

O

The totals will be updated once you have clicked on

TOTAL (A & B)		# of voting rights	% of voting rights
	CALCULATE	7,582,680	3.08%

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

Mr. Israel Englander (natural person) is the UBO and controls Millennium International Management LP through the following chain of control:
Mr. Israel Englander controls Millennium Group Management Trust. Millennium Group Management Trust controls Millennium Group Management LLC. Millennium Group Management LLC controls Millennium International Management LP

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

Millennium International Management LP is a discretionary investment manager of various trading vehicl	e (including Millennium Partners, I	L.P and Integrated Assets III) and can exerc	ise the voting rights at its
discretion in the absence of specific instructions.

The number of voting rights that may be acquired if the swaps are exercised may be subdivided as follows:

• Millennium Partners, L.P: 7,563,605
• Integrated Assets III: 19,075

Done at London
On 19/12/2025	(DD/MM/YYYY)
Name & capacity Mark Meskin, Chief Strategic Development Officer	Signature

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.