Düsseldorf, Germany, December 6, 2025, 6:08 pm CET– Klöckner & Co SE confirms rumors that the company is in negotiations with Worthington Steel, Inc. regarding a voluntary public takeover offer for all shares of Klöckner & Co SE and Worthington Steel, Inc. is conducting a due diligence review.

It is currently uncertain whether or under which conditions a potential voluntary public takeover offer will be pursued.

Issuer: Klöckner & Co SE, Peter-Müller-Straße 24, 40468 Düsseldorf, Germany

The shares of Klöckner & Co SE are admitted to trading on the regulated market segment (Regulierter Markt) of the Frankfurt Stock Exchange (Frankfurter Wertpapierbörse) with further post-admission obligations (Prime Standard). Klöckner & Co shares are listed in the SDAX^®-Index of Deutsche Börse.

ISIN: DE000KC01000; WKN: KC0100; Common Code: 025808576.