At the 2024 Annual Meeting of Shareholders of Metallus Inc. held on May 7, 2024 the shareholders elected Melissa M. Miller, Executive Vice President and Chief Human Resources Officer at Arconic Corporation, as a new independent director. Miller was elected to serve an initial term of one year and fills the vacancy resulting from the retirement of Diane Creel from Metallus' Board of Directors. Additionally, shareholders have re-elected for a three-year term independent directors Mary Ellen Baker, Jamy Rankin and Ron Rice, as well as Mike Williams, Metallus' President and Chief Executive Officer.

Eleven directors now serve on the Metallus board. Miller is currently Arconic's Executive Vice President and Chief Human Resources Officer, a role she has held since the company launched in April 2020, when Arconic Corporation separated from Arconic Inc. now known as Howmet Aerospace. In 2022, Melissa was part of the negotiations that resulted in a 4-year contract with the United Steel Workers.

Miller joined Arconic's predecessor company, Alcoa, in 2005 and has held multiple leadership roles with a broad spectrum of progressive HR responsibilities, including HR strategy development and implementation, talent management, workforce planning, succession planning, employee engagement, campus partnerships, HR technology, growth in emerging markets (Brazil, China, Middle East & India), merger integrations, turnarounds and employee/labor relations. Melissa holds a Bachelor of Science degree in Psychology from Pennsylvania State University.