Klöckner & Co SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

EQS Voting Rights Announcement: Klöckner & Co SE Klöckner & Co SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution 11.02.2026 / 16:13 CET/CEST Dissemination of a Voting Rights Announcement transmitted by EQS News - a service of EQS Group. The issuer is solely responsible for the content of this announcement.

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Notification of Major Holdings

1. Details of issuer

Name:	Klöckner & Co SE
Street:	Peter-Müller-Straße 24
Postal code:	40468
City:	Düsseldorf Germany
Legal Entity Identifier (LEI):	529900CQ31CN6GV5LL52

2. Reason for notification

	Acquisition/disposal of shares with voting rights
	Acquisition/disposal of instruments
	Change of breakdown of voting rights
X	Other reason: Expiration of instruments due to fulfillment of irrevocable undertaking to accept as part of a public takeover offer (irrevocable undertaking agreement)

3. Details of person subject to the notification obligation

Legal entity: Worthington Steel, Inc. City of registered office, country: Columbus, United States of America (USA)

4. Names of shareholder(s)
holding directly 3% or more voting rights, if different from 3.

Worthington Steel GmbH