Investors

Henry R. Keizer was elected to the Board of Directors in 2021 and became Chairman in May 2023.  Mr. Keizer formerly served as Deputy Chairman and Chief Operating Officer of KPMG, the U.S.-based and largest individual member firm of KPMG International, before his retirement in December 2012. Mr. Keizer currently serves as a director of Sealed Air Corporation (NYSE: SEE) and as a trustee of the BlackRock Multi-Asset Fund Complex. Mr. Keizer holds a Bachelor’s degree in Accounting, summa cum laude, from Montclair State University, New Jersey.

Diego Donoso was elected to the Board of Directors in 2023. Mr. Donoso retired in April 2023 from Dow Inc. (“Dow”), an American multinational materials science company. From 2012 until his retirement, Mr. Donoso served as President of Packaging & Specialty Plastics (“P&SP”), one of three operating segments of Dow, which consisted of two integrated global businesses: Hydrocarbons and Packaging and Specialty Plastics. His journey with Dow began more than 30 years ago, when, after graduating with a degree in business administration from Babson College in Massachusetts, he joined Dow as a trainee in the commercial department in São Paulo, Brazil. Over the next 20 years, Mr. Donoso served in numerous business and commercial leadership positions for Dow’s resins and plastics franchise in both Latin America and Europe. In 2010, Mr. Donoso was appointed President of Dow Japan and Korea based in Tokyo, Japan, and in 2012, transferred to Dow’s corporate headquarters in Midland, Michigan and was promoted to President of P&SP later that year.

Michel J. Dumas was elected to the Board of Directors in 2018. He has over 30 years’ experience in the lumber, pulp and paper industries. From 1997 until 2017, Mr. Dumas served as the Executive Vice President, Finance, and Chief Financial Officer of Quebec based Tembec Inc. He also served on the Tembec Board of Directors from January 2011 to February 2017. Mr. Dumas served as a director of Marathon Pulp Inc., from February 2000 to February 2009, and of Jager Building Systems, from August 2001 to September 2008. From 1991 to 1997, he was Vice President, Finance, and Chief Financial Officer at Spruce Falls Inc., a newsprint producer. Prior to joining Spruce Falls, he served as Controller at Tembec, from 1985 to 1991. Mr. Dumas received his undergraduate degree in commerce from the University of Ottawa.

Debra Fine was elected to the Board of Directors in 2021. Ms. Fine founded Fine Capital Partners, a financial services firm located in New York, served as President and Chief Executive Officer from 2004 to January 2020, and has served as Chair of the firm since 2020. She earned a Bachelor of Arts degree, cum laude, from Yale University and an MBA from Harvard Business School.

Mr. Flanagan was elected to the Board in March 2024 when he was appointed as GrafTech’s Chief Executive Officer and President. Prior to that, Mr. Flanagan served as GrafTech’s interim Chief Executive Officer and President from November 2023 to March 2024. He joined the Company in November 2021, upon being appointed GrafTech’s Chief Financial Officer, Vice President Finance and Treasurer. Mr. Flanagan previously served as Executive Vice President, Chief Financial Officer of Cleveland-Cliffs Inc., a flat-rolled steel producer and supplier of iron ore pellets, from January 2017 to February 2019. Prior to being promoted to Executive Vice President, Chief Financial Officer of Cleveland-Cliffs, he held a variety of financial leadership roles at Cleveland-Cliffs since joining in 2008. More recently, he served as Chief Financial Officer of Benesch, Friedlander, Coplan & Aronoff, LLP, an AmLaw 200 law firm, from June 2019 to November 2021. He has a B.S. in Accounting from the University of Dayton.

Jean-Marc Germain was elected to the Board of Directors in 2021. Mr. Germain has served as Chief Executive Officer of Constellium SE (NYSE: CSTM), a designer and manufacturer of a broad range of innovative rolled and extruded aluminum products serving primarily the packaging, aerospace and automotive end-markets, since July 2016, and has been executive director of the board of Constellium since June 2016. Mr. Germain is a graduate of Ecole Polytechnique in Paris, France.

Eric V. Roegner was elected to the Board of Directors in 2025. Mr. Roegner has served in multiple positions at Amcor plc, a global developer and producer of packaging solutions across a variety of materials, and since January 2025 has served as the Executive Vice President, Integration and Special Projects. Prior to his role at Amcor, Mr. Roegner served in executive leadership roles with Arconic Inc. for over 12 years. Arconic, formerly known as Alcoa Inc., is a provider of aluminum sheet, plate and extrusions, as well as architectural products. Earlier in his career, Eric was a partner at McKinsey & Co. Eric holds a master’s degree in Business Administration from Case Western Reserve University in Cleveland, Ohio, and a bachelor’s degree in Aerospace and Mechanical Engineering from Princeton University.

Sachin Shivaram was elected to the Board of Directors in 2025. Mr. Shivaram has served as the Chief Executive Officer of Wisconsin Aluminum Foundry Company, Inc., a century-old, family-owned manufacturer of aluminum and copper-based alloy castings, since 2019. Mr. Shivaram began his career at ArcelorMittal S.A., one of the world’s largest steel and mining companies, rising to the head of strategy and marketing for a business unit with production facilities across North and South America. Mr. Shivaram serves on the board of directors of Lodge Manufacturing Company, Broadwind, Inc., Vollrath Company, LLC and the Green Bay Packers, Inc. He also serves on the board of the Wisconsin Council on Workforce Investment and is a trustee of Lawrence University. He earned a Bachelor of Arts in history and literature from Harvard University, a Masters in social and political sciences from the University of Cambridge and a Juris Doctor from Yale Law School. He is a bar-certified attorney.

Anthony R. Taccone was elected to the Board of Directors in 2018, with over 30 years’ consulting experience with companies in the global steel industry and with interests in the steel industry, including suppliers, customers and investors. Since March 1998, he has served as a Founding Partner and co-owner of First River LLC, a boutique strategy consulting firm. At First River, Mr. Taccone has worked with senior management teams, boards, investors and government agencies on challenging and complex issues facing companies in the steel industry, including financial restructurings, capacity rationalizations, mergers and acquisitions, major capital investment decisions, raw material integration strategies and investments in downstream businesses. Prior to joining First River, Mr. Taccone was a strategy consultant at Beddows & Company, from 1988 to 1998. From 1994 until 1998, he was the North American practice leader and served on the Beddows & Company Board of Directors. Prior to his career as a steel industry consultant, Mr. Taccone worked at Mellon Bank as a Country Risk Economist, from 1985 to 1987, and an Industry Economist from 1987 to 1988. He received his undergraduate degree in economics from Washington & Jefferson College and his master’s degree in economics from Duke University.

Timothy K. Flanagan was elected to the Board in March 2024 when he was appointed as GrafTech’s Chief Executive Officer and President. Prior to that, Mr. Flanagan served as GrafTech’s interim Chief Executive Officer and President from November 2023 to March 2024. He joined the Company in November 2021, upon being appointed GrafTech’s Chief Financial Officer, Vice President Finance and Treasurer. Mr. Flanagan previously served as Executive Vice President, Chief Financial Officer of Cleveland-Cliffs Inc., a flat-rolled steel producer and supplier of iron ore pellets, from January 2017 to February 2019. Prior to being promoted to Executive Vice President, Chief Financial Officer of Cleveland-Cliffs, he held a variety of financial leadership roles at Cleveland-Cliffs since joining in 2008. More recently, he served as Chief Financial Officer of Benesch, Friedlander, Coplan & Aronoff, LLP, an AmLaw 200 law firm, from June 2019 to November 2021. He has a B.S. in Accounting from the University of Dayton.

Jeremy S. Halford was promoted to Executive Vice President, Chief Operating Officer in 2021 and previously served as Senior Vice President, Operations and Development since joining GrafTech in 2019. Prior to GrafTech, Mr. Halford served as the President of Arconic Engineered Structures, a producer of highly engineered titanium and aluminum components for the aerospace, defense and oil and gas markets, a position he held since January 2017. Mr. Halford also was President of Doncasters Aerospace, a manufacturer of components and assemblies for the civil and military aero engine and airframe markets, from 2014 to 2016, and Vice President, Global Business Development, Doncasters Group Limited from 2013 to 2014. Previously, he also was President of Mayfran International from 2012 to 2013, and spent seven years at Alcoa in a variety of general management and strategy roles. Mr. Halford holds a Master of Business Administration degree from Harvard University and a Bachelor of Science degree in Mechanical Engineering from GMI Engineering and Management Institute (now Kettering University).

Rory O’Donnell joined GrafTech as Chief Financial Officer and Senior Vice President in September 2024.  Mr. O’Donnell previously served as Senior Vice President, Controller and Principal Accounting Officer of Covia Corporation, a provider of mineral-based and material solutions for the industrial and energy markets, since February 2019.  While at Covia Corporation, he also served as Interim Chief Financial Officer from August 2022 to July 2023.  Prior to Covia Corporation, Mr. O’Donnell served as Senior Vice President, Controller at Signet Jewelers Limited, a retailer of diamond jewelry, from 2014 to 2019.  Before joining Signet Jewelers Limited, Mr. O’Donnell served as Director, Accounting & Reporting at Cleveland-Cliffs Inc., a North America-based steel producer.  Mr. O’Donnell began his career at KPMG LLP, a professional services firm.  Mr. O’Donnell has a B.S. in Accounting from the University of Dayton and is a Certified Public Accountant licensed in Ohio.

Iñigo Perez Ortiz joined GrafTech as Senior Vice President, Commercial in February 2020. Mr. Perez most recently served as Vice President, Europe and Asia, Sales and Customer Service at Alcoa Corporation, a global industry leader in bauxite, alumina, and aluminum products, a position he held since 2017. Previously at Alcoa, Mr. Perez was Commercial Director, Europe and Asia Pacific from 2011 to 2017, Sales Manager, Europe from 2007 to 2011 and Sales Office Manager from 2002 to 2007. Prior to his career at Alcoa, Mr. Perez served in a variety of senior commercial roles at Autopulit S.A., Warner Electric and Babcock Wilcox Espanola, S.A. Mr. Perez holds a Master in Industrial Plans Management, Lean Manufacturing and Engineering degree from Polytechnic University of Barcelona, an Executive Master of Business Administration degree from Instituto de Empresa and a Mining Engineer degree from the University of the Basque Country.

Andrew J. Renacci was appointed Interim Chief Legal Officer and Corporate Secretary in January 2025. Prior to that, Mr. Renacci served as GrafTech's Senior Corporate Counsel from April 2021 to January 2025, where he was responsible for advising GrafTech in matters related to corporate governance, executive compensation, capital markets, ESG, securities laws, stock exchange rules and regulations, periodic reporting responsibilities and strategic transactions. Prior to joining GrafTech, Mr. Renacci spent approximately nine years in the corporate and securities group at Squire Patton Boggs (US) LLP, an international law firm, where he advised clients in the chemicals, manufacturing and entertainment and recreation industries on similar matters. Mr. Renacci holds a bachelor’s degree from the University of Michigan and a Juris Doctor from Cleveland State University College of Law. He is admitted to practice law in the State of Ohio.