ArcelorMittal

Northshore Mining Company is a wholly owned subsidiary of Cleveland-Cliffs who acquired Northshore in 1994. Cleveland-Cliffs subsidiaries also manage five other iron ore mines in Michigan, Minnesota and Eastern Canada. Northshore Mining was originally operated as Reserve Mining Company. It was the first taconite mining and processing facility in North America when it opened in 1955. The facility was reopened at reduced capacity in 1989 by Cyprus Minerals Company. Taconite is a hard, iron-bearing rock formed more than a billion years ago when the region was covered by a great sea. Minnesota's taconite belt, which varies from one to three miles wide and as much as 500 feet thick, extends northeastward from the Grand Rapids area up to Babbitt, where the mine that feeds the Silver Bay processing operations is located.

Great Northern Iron Ore Properties, located in Hibbing, MN, is a company focused on managing and developing iron ore resources. They are committed to providing reliable solutions in the iron ore industry. The company emphasizes affordability and efficiency in its operations, ensuring that their services meet the needs of their stakeholders. Great Northern Iron Ore Properties continues to uphold a standard of excellence in resource management. Generated from the website

United States Steel Minnesota Ore is a mining division of United States Steel Corporation. United States Steel Corporation, headquartered in Pittsburgh, manufactures a wide variety of steel sheet, tubular and tin products; coke and taconite pellets. The steel producer has a worldwide annual raw steel capability of more than 26.8 million tons. U. S. Steel's domestic steel operations are the Gary Works, Gary, Ind.; Great Lakes Works, Ecorse and River Rouge, Mich.; Mon Valley Works, Pittsburgh and Fairless Works, Philadelphia; Granite City Works in Granite City, Ill., and other locations in the South and Midwest. The company also operates a seamless tubular mill, Lorain Pipe Mills, in Lorain, Ohio. Internationally, U. S. Steel has steelmaking subsidiaries in Kosice, Slovakia and U. S. Steel Serbia in Sabac and Smederevo, Serbia. When founded in 1901, U. S. Steel Corporation was the largest business enterprise ever launched, with an authorized capitalization of $1.4 billion. Its founding fathers are the captains of American industry, Andrew Carnegie, J.P. Morgan and Charles Schwab. Throughout the years, U. S. Steel has responded to changing economic conditions and new market opportunities through diversification and periodic restructuring. Today, 104 years after its founding, U. S. Steel remains the largest integrated steel producer in the United States.