Haynes International Provides Cybersecurity Update and Estimated Third Quarter Financial Impact.

July 20, 2023

KOKOMO, IN, July 19, 2023 – Haynes International, Inc. (NASDAQ GM: HAYN) (the “Company”), a leading developer, manufacturer and marketer of technologically advanced high-performance alloys, provided an update today regarding the recent cybersecurity incident including the estimated quarterly financial impact.

As previously disclosed, the Company began experiencing a network outage indicative of a cybersecurity incident on June 10, 2023. Upon detection of the incident, the Company engaged third-party specialists to assist in investigating the source of the outage, determine its potential impact on the Company’s systems, and securely restore full system functionality. On June 21, 2023, less than 2 weeks after the incident began, the Company announced that all manufacturing operations were running and that the Company had substantially restored administrative, sales, financial and customer service functions. Nevertheless, during those 11 days many aspects of the Company’s production were substantially disrupted. For more information, click here.