Umicore — Major Shareholding Notification 2026

Jan 14, 2026

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Transparency notification Form TR-1 BE PART I

1)	Sta	tus	of	the	noti	ficat	ion

Final	-

1. Issuer

Name UMICORE ldentification number 0401-574-852

3) Reason for the notification

Downward crossing of the lowest threshold

Acquisition or disposal of voting securities or voting rights

4) Notification by

A person that notifies alone

5) Persons subject to the notification requirement

Name	Address (for legal entities)
Silchester International Investors LLP	The Metcalf, 3rd Floor, 83-85 Pall Mall, London, SW1Y 5ES, UK

1. 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

08/01/2026 (DD/MM/YYYY)

1. Threshold that is crossed (in %)

3

f 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 tr	nsaction
	# of voting rights	# of voting rights		% of voting rights
Holders of voting rights		Linked to securities	Not linked to the securities	Linked to securities	Not linked to the securities
Silchester International Investors LLP	12,268,898	7,360,276	0	2.99%	0.00%
TOTAL		7,360,276		2.99%

Start with "groups" of holders. Add subtotals with $\sum$ , 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 .

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B) Equivalent financial instruments	After the transaction
Holders of equivalent financial instruments	Type of financial instrument	Expiration date	Exercise period or date	# of voting rightsthat may beacquired if theinstrument isexercised	% of voting rights	Settlement
							+
	TOTAL					,
•	The totals will be updated once you have clicked o
	TOTAL (A & B)		*	# of voting rights	% of voting rights	n *
			CALCULATE	7,360,276	2.99%

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

ernational Investo	15 LLF IS HOL	controlled b	y any person	is or legal enti	ity.

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

Silchester International Investors LLP ("Silchester") acts as investment manager for certain commingled funds (our "Clients"). In acting for our Clients, Silchester is given full discretion over their investments and is empowered to vote on their behalf. However, we do not act as our Clients' custodian and therefore shares are not held in our name but in the name of each Client's custodian bank. The Clients:

• The Silchester International Investors International Value Equity Trust (US Domiciled); The Silchester International Investors International Value Equity Group Trust (US Domiciled); The Silchester International Investors International Value Equity Taxable Trust (US Domiciled); The Silchester International Investors International Value Equity Exclusion Trust (US Domiciled);

• The Calleva Trust International Investors (Ireland) Trust International Equity Exclusion UCITS (Irish Domiciled). The Silchester International Investors (Ireland) Trust International Equity Exclusion UCITS (Irish Domiciled).

Done at London, UK
On	12/01/2026	(DD/MM/YYYY
Name & capacity Hannah Sprigings, Partner

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.