Cliffs Natural Resources is a mining company based in the United States, primarily focused on the production of iron ore and metallurgical coal. Founded in 1847, it has become one of the largest suppliers of iron ore pellets in North America, serving the steel industry. The company operates several mines and processing facilities, mainly located in the Great Lakes region. In addition to iron ore, Cliffs Natural Resources has expanded its operations to include metallurgical coal, which is essential for steel production. The company is committed to sustainable practices and aims to minimize its environmental impact while meeting the growing demand for steel in various industries.