Cliffs Natural Resources Inc. is a leading iron ore mining company based in the United States. The Company holds the top position as the largest producer of iron ore pellets in North America. It serves the North American steel industry from its mines and pellet plants located in Michigan and Minnesota. Cliffs also operates an iron ore mining complex in Western Australia and serves the Asian steelmaking market. Driven by the core values of safety, social, environmental and capital stewardship, Cliffs' employees endeavor to provide all stakeholders operating and financial transparency.