X - United States Steel Corporation to Release First Quarter 2024 Financial Results on May 2 2024

United States Steel Corporation (NYSE: X) (“U. S. Steel”) today announced that it will release financial results for the first quarter 2024 on Thursday, May 2, 2024, following the close of trading on the New York Stock Exchange.

As previously announced, on December 18, 2023, the company entered into a definitive merger agreement to be acquired by Nippon Steel Corporation. In light of the pending transaction, the company will not hold an earnings conference call. Instead, our earnings release, presentation, and segment and financial operational data will be issued concurrently.

To access the materials, visit the company’s website at www.ussteel.com and click “Investors.” Financial information, including earnings releases, SEC filings and other investor-related material, is also available in the Investor Relations section of the company’s website.

Founded in 1901, United States Steel Corporation is a leading steel producer. With an unwavering focus on safety, the company’s customer-centric Best for All ^® strategy is advancing a more secure, sustainable future for U. S. Steel and its stakeholders. With a renewed emphasis on innovation, U. S. Steel serves the automotive, construction, appliance, energy, containers, and packaging industries with high value-added steel products such as U. S. Steel’s proprietary XG3 ^® advanced high-strength steel. The company also maintains competitively advantaged iron ore production and has an annual raw steelmaking capability of 22.4 million net tons. U. S. Steel is headquartered in Pittsburgh, Pennsylvania, with world-class operations across the United States and in Central Europe. For more information, please visit www.ussteel.com .

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Corporate Communications
T – (412) 433-1300
E – media@uss.com

Emily Chieng
Investor Relations Officer
T – (412) 618-9554
E – ecchieng@uss.com