United States Steel Corp. is a steel manufacturer in the United States. It produces and sells steel mill products including flat-rolled and tubular products in North America and Europe. United States Steel reports in five segments - Flat-Rolled Product, Mini Mill, U.S. Steel Europe, Tubular Products and Other Businesses. Flat-Rolled Product segment manufactures sheets, plates and tin mill products for the automotive, appliance, service center, conversion, container and construction markets. Mini Mill segment was added after purchase Big River Steel. USSE - Sells sheets, plates, tin mills, tubulars, precision tubes, specialty steel products and coke to end-markets in Europe. Tubular Products segment provides seamless and electric resistant welded tubular products to the oil, gas and petrochemical markets. Other Businesses segment is involved in the production and sale of iron-bearing taconite pellets, transportation services, management and development of real estate and engineering and consulting services.