AK Steel Holding Corporation is an integrated producer of flat-rolled carbon, stainless and electrical steels and tubular products through its wholly owned subsidiary, AK Steel Corporation. Its operations consist of 10 steelmaking and finishing plants and tubular production facilities located in Indiana, Kentucky, Ohio and Pennsylvania. It also owns and operates a cokemaking facility in West Virginia. The Company�s operations produce flat-rolled value-added carbon steels, including coated, cold-rolled and hot-rolled carbon steel products, and specialty stainless and electrical steels. It also produces carbon and stainless steel that is finished into welded steel tubing. Its operations also include European trading companies that buy and sell steel and steel products and other materials, AK Coal Resources, Inc., which produces metallurgical coal from reserves in Pennsylvania, and a 49.9% equity interest in Magnetation LLC, a joint venture that produces iron ore concentrate.