U. S. Steel Announces Board of Directors

July 30, 2025

Consistent With Commitment in National Security Agreement, U.S. Citizens

Comprise Majority of Board

Pittsburgh and Tokyo – July 30, 2025 – United States Steel Corporation (“U. S. Steel”) together with Nippon Steel Corporation (TSE: 5401) (“Nippon Steel”) and its wholly owned subsidiary Nippon Steel North America, Inc. (collectively, the “Companies”), today announced the appointment of three Independent U.S. Directors to U. S. Steel’s Board of Directors (the “U. S. Steel Board”).

Takahiro Mori, Representative Director, Vice Chairman and Executive Vice President of Nippon Steel and Chairman of the U. S. Steel Board said, “We are delighted to bring together a group of world-class individuals who share a common interest in solidifying U. S. Steel’s position as the leading steelmaker in the United States. I look forward to working with this team of distinguished and insightful Board members to help build a stronger and brighter future for U. S. Steel, its employees and steelmaking in the United States."

Dave Burritt, President & CEO of U. S. Steel and a member of the U. S. Steel Board added, “Today's announcement is another important milestone as we accelerate on our journey to growing a better and bigger U. S. Steel right here in the United States. The new U. S. Steel Board is composed of highly accomplished leaders who share a commitment to protecting the American steel industry, American workers and American national security.”

The U. S. Steel Board is now comprised of seven directors, four of whom are U.S. citizens, including three Independent U.S. Directors.  

The Independent U.S. Directors who joined the U. S. Steel Board are:

John M. Donovan, brings substantial experience leading a large multinational company with deep expertise in technology and innovation. Mr. Donovan served as Chief Executive Officer of AT&T Communications, a wholly-owned subsidiary of AT&T Inc., where he oversaw the company’s communications division from August 2017 until his retirement in October 2019. Mr. Donovan has served on the Board of Directors of Palo Alto Networks, Inc. since 2012, the Board of Directors of Lockheed Martin Corporation since 2021 and was a member of the President’s National Security Telecommunications Advisory Committee from 2019 to 2023.

Robert J. Stevens, brings extensive executive leadership experience and a deep understanding of the complexities of operating a global business, strategic planning and regulatory matters. Mr. Stevens previously served as Chairman, President, and Chief Executive Officer of Lockheed Martin Corporation, from 2005 to 2012 and served as Executive Chairman in 2013. Mr. Stevens serves on the advisory Board of the Marine Corps Scholarship Foundation and is a member of the Council on Foreign Relations. He has been an Independent Director of T. Rowe Price Group since 2019. From 2002 to 2018, he was the lead Independent Director of Monsanto Corporation.

 Admiral Timothy J. Keating, USN (Ret.), brings proven leadership, extensive experience engaging with global partners and sophisticated national security knowledge. Admiral Keating currently serves as the Chief Executive Officer and Vice Chair of the Board of Directors at Keating Global, LLC, a veteran-owned security consulting firm that provides expertise in security and crisis response capabilities. Admiral Keating retired in December 2009 following his tenure as the Commander of the United States Pacific Command, where he was responsible for overseeing a vast region encompassing over 3.4 billion individuals. Admiral Keating’s distinguished career includes previous roles as the Commander of the United States Northern Command and the North American Aerospace Defense Command.

The Independent U.S. Directors join the four existing directors:

David B. Burritt is the President and Chief Executive Officer of U. S. Steel, where he has served as CEO since May 2017. Mr. Burritt serves on the Board of Directors for Lockheed Martin, the National Safety Council and serves on the Executive Committee of worldsteel. He is also a member of The Business Council and a member of the G100.

Takahiro Mori is the Representative Director, Vice Chairman and Executive Vice President at Nippon Steel Corporation, where he oversees Global Business Development as well as Accounting & Finance and serves as the Head of the USS Project and India Project, as well as a Board member of AM/NS India. Mr. Mori joined Nippon Steel in 1983 and has over 40 years of experience in various leadership roles across the organization and has been involved in corporate planning, marketing and human resources. Mr. Mori is the Chairman of the U. S. Steel Board.

Naoki Sato is the Representative Director and Executive Vice President (CTO) of Nippon Steel Corporation and also serves as the Vice Head of the USS Project, India Project and Thai Steel Project. Mr. Sato joined Nippon Steel in 1983 as an electrical engineer and has contributed to the development of advanced steel technologies and technical cooperation for steel plants outside Japan. Mr. Sato has held key leadership roles at major steelworks in Japan, including serving as Executive Vice President as Head of East Nippon Works.

Hiroshi Ono is the Managing Executive Officer at Nippon Steel Corporation, where he is responsible for managing Global Business Development in the Americas and leads the Usiminas Project of Nippon Steel. Since 2020, he has also served as President and CEO of Nippon Steel North America. Mr. Ono joined Nippon Steel in 1989, serving in a series of management roles in the Business Development and Automotive Flat Products divisions. Prior to his current role, Mr. Ono served as the Head of Global Business Support Center in the Global Business Development Sector.

About U. S. Steel

Founded in 1901, U. S. Steel delivers profitable and sustainable steel solutions. Propelled by its talented employees and an unwavering focus on safety, U. S. Steel serves the automotive, construction, appliance, energy, containers, and packaging industries with high value-added steel products. Steel production begins with our competitively advantaged iron ore production capabilities which fuel our integrated steelmaking facilities and investments in electric arc furnaces. To help our customers create the best products with the fewest emissions, we are committed to reaching net-zero greenhouse gas emissions by 2050. U. S. Steel is at the forefront of creating steels that are stronger, lighter, and better for the environment. This includes our proprietary XG3® advanced high-strength steel, verdeX® steel produced with 70-80% lower CO2 emissions with a recycled content of up to 90%, and ultra-thin lightweight InduX™ steel for electric vehicles, generators, and transformers. U. S. Steel maintains operations across the United States and in Central Europe and is headquartered in Pittsburgh, Pennsylvania. For more information, please visit http://www.ussteel.com and follow U. S. Steel on LinkedIn, Instagram, Facebook, and X.

 About Nippon Steel

Nippon Steel is one of the world’s leading steelmakers and Japan’s largest steelmaker. Nippon Steel has a global crude steel production capacity of approximately 86 million tonnes and employs around 136,000 people in the world. Nippon Steel’s manufacturing base encompasses more than 15 countries including: Japan, the United States, India, Thailand, Indonesia, Vietnam, Brazil, Mexico, Sweden and others. Nippon Steel established a manufacturing base in the United States around 40 years ago and has focused on building cooperative and good relationships with employees, labor unions, suppliers, customers, and communities. As the ‘Best Steelmaker with World-Leading Capabilities,’ Nippon Steel pursues world-leading technologies and manufacturing capabilities and contributes to society by providing excellent products and services. For more information, please visit: https://www.nipponsteel.com.