Update Regarding Labor Contract Negotiations

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION

FOR IMMEDIATE RELEASE

Update Regarding Labor Contract Negotiations at the Company's Three Rivers Manufacturing Facility in Michigan

DETROIT, June 1, 2026 - Dauch Corporation (NYSE: DCH, LSE: DCH) announces that, following the expiry of the collective bargaining agreement at its Three Rivers Manufacturing Facility (TRMF) in Michigan, on May 31, 2026, the parties have not yet agreed upon the terms of a new agreement.

Effective June 1, 2026, associates at TRMF represented by the United Auto Workers (UAW) union have decided to implement a work stoppage.

Further updates on the status of negotiations between the parties will be provided when available.

About Dauch

Dauch Corporation is a premier Driveline and Metal Forming supplier serving the global automotive industry with a powertrain-agnostic product portfolio that supports electric, hybrid, and internal combustion vehicles. The company is headquartered in Detroit, MI, with operations that span 24 countries and more than 175 locations. Visit www.dauch.com to learn more.

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Contacts:

David H. Lim, Head of Investor Relations

+1 (313) 758-2006

[email protected]

Christopher M. Son, Vice President, Marketing & Communications

+1 (313) 758-4814

[email protected]