United States Steel Corp. engages in the manufacturing and selling of steel products. The company is headquartered in Pittsburgh, Pennsylvania and currently employs 22,740 full-time employees. The Company’s operations in the United States also include iron ore and coke production facilities and real estate operations. Its operations in Europe also include coke production facilities. The firm operates through four segments: North American Flat-Rolled (Flat-Rolled), Mini Mill, U. S. Steel Europe (USSE) and Tubular Products (Tubular). Its Flat-Rolled segment is engaged in the production of slabs, strip mill plates, sheets and tin mill products, as well as all iron ore and coke production facilities in the United States. The Mini Mill segment produces hot-rolled, cold-rolled and coated sheets and electrical steels. The USSE segment includes U. S. Steel Kosice (USSK), U. S. Steels integrated steel plant and coke production facilities in Slovakia, and its subsidiaries.