Introduction
U. S. Steel's 2024 Sustainability Report covers our progress toward our sustainability initiatives and goals. It is the primary source of annual disclosure of our environmental, social and governance (ESG) performance and should be viewed in conjunction with disclosures in our ESG Data Hub. Data in this report covers the period from January 1, 2024, to December 31, 2024, unless otherwise indicated.

#1

Earned the world’s first-ever certification for ResponsibleSteel™ Certified Steel at Big River Steel

Protecting Our Planet

To help ensure the future of steel is one that  safeguards our planet, we continue to invest and innovate to reduce our environmental footprint. Our efforts span all facets of our business,  representing the combined efforts of our dedicated employees, our senior  management and Board of Directors, our  customers, our suppliers, our partners and  our communities. We are encouraged by  our progress in reducing our emissions, reducing our energy footprint, reducing waste, and protecting water, air and nature and biodiversity. We know there is more to do to protect the planet, and we are  determined to accelerate our efforts

34.7%

Reduced Scope 2 GHG emissions intensity by 34.7% from our 2021 baseline at Big River Steel

Our SteelSUSTAINABILITY Employee Resource Group (ERG) launched the Sustain X program, designed to foster and fund sustainability-oriented projects created and led by employees

40,000

Won the Pennsylvania “Governor’s Award for Environmental Excellence” for our two new electric locomotives at the Mon Valley Works site, which will reduce diesel fuel consumption by 40,000 gallons annually

Inspiring Innovation

We believe our long-term success depends on our ability to adapt to the changing needs of our customers and their sustainability goals. That’s why U. S. Steel is advancing the future of steelmaking with our innovative processes and products. As we continuously optimize how we produce steel, our company brings essential value to our customers through transformative improvements. The results marry performance in critical safety applications with lighter-weight steel to help customers meet their sustainability goals, among many other benefits.

Empowering People

We never waver in our deep commitment to seeing our employees thrive, and to attracting and retaining a skilled workforce. We continue to work hard to ensure our award-winning workplace environment is one that protects employees’ safety and well-being, makes them feel welcome and rewarded, and provides them the support, training and opportunities they need to advance. Our Culture of Caring includes active efforts to provide wide-ranging opportunities to engage and invest in communities through volunteerism, partnerships and philanthropy.


15%

Employee Resource Group (ERG) membership increased by 15%

100%

Continued to support 100% pay equity, validated by independent third party

$7.7 M

Directed $7.7 million in donations to over 150 organizations, events and programs

0.06

Achieved a corporate OSHA Days Away From Work (DAFW) rate of 0.06 — just 10% of the U.S. Bureau of Labor Statistics Iron and Steel benchmark DAFW rate of 0.60

Upholding Governance

We believe that strong board oversight, full transparency and a robust ethics and compliance program are essential to thriving as a business and delivering on our sustainability commitments. We set high standards, hold ourselves to them and are proud to share them with others.