CFIUS Approval Obtained For The Planned Merger of North American Stainless, Inc. and Haynes International, Inc.

KOKOMO, IN, June 27, 2024 - Haynes International, Inc. (NASDAQ GM: HAYN) (the "Company"), a leading developer, manufacturer and marketer of technologically advanced high-performance alloys, is pleased to announce that clearance has been obtained from the Committee on Foreign Investment in the United States (CFIUS) related to the planned merger with North American Stainless, Inc.

As previously disclosed, on February 4, 2024, Haynes International, Inc., a Delaware corporation, entered into an Agreement and Plan of Merger (the "Merger Agreement") with North American Stainless, Inc., a Delaware corporation ("Parent"), Warhol Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent ("Merger Sub"), and solely for purposes specified therein, Acerinox S.A., a Spanish sociedad anonima ("Guarantor"). Pursuant to the Merger Agreement, Merger Sub will be merged with and into the Company, with the Company surviving as a wholly owned subsidiary of Parent (the "Merger").

The Merger remains subject to regulatory approval from applicable regulatory authorities in the United Kingdom and Austria. All other regulatory approvals and clearances where the applicable authorities have asserted jurisdiction have been obtained. The Company continues to expect that the Merger will close in the fourth calendar quarter of 2024.