U.S. Steel, officially known as the United States Steel Corporation, is one of the largest steel producers in the United States. Founded in 1901, it was created through the merger of several steel companies, including Carnegie Steel Company. The company primarily manufactures steel products for various industries, including construction, automotive, and energy. Headquartered in Pittsburgh, Pennsylvania, U.S. Steel operates several manufacturing facilities across the country. The company is known for its commitment to sustainability and innovation, focusing on reducing environmental impact while meeting the demands of modern steel production.