Cleveland-Cliffs, Inc., a mining company, produces iron ore pellets and supplies metallurgical coal to the steelmaking industry primarily in North America. It offers 13 grades of iron ore pellets, including standard, fluxed, and high manganese, which are used in blast furnaces as part of the steelmaking process. The company operates six iron ore mines in Michigan, Minnesota, and Eastern Canada; and three coking coal mines in West Virginia and Alabama. In addition, Cleveland-Cliffs, Inc. owns an 80% interest in Portman Limited, an iron ore mining company in Australia. Further, it has a 30% interest in the Amapa project, a Brazilian iron ore project; and a 45% economic interest in the Sonoma project, an Australian coking and thermal coal project. The company was founded in 1847 and is headquartered in Cleveland, Ohio.