Mechel OAO, an open joint stock company, through its subsidiaries, operates as a mining and steel company. The company engages in the production and sale of coking and steam coal concentrate, steam coal, iron ore concentrate, and ferronickel that are used in the production of steel. It also produces semi-finished steel products; carbon and specialty long products; carbon and stainless flat products; value-added downstream metal products, including hardware, forgings, and stampings; high grade fe ...

Companhia Vale do Rio Doce, together with its subsidiaries, operates as a diversified metals and mining company worldwide. It produces, exports, and supplies iron ores and pellets to the steel making industry, as well as manganese ores and iron alloys, including metallurgical ore used primarily for the production of ferroalloys; natural manganese dioxide used for the manufacture of electrolytic batteries; and chemical ore used in various industries for the production of fertilizer, pesticides, a ...

Cleveland-Cliffs Inc is an international mining company, the largest producer of iron ore pellets in North America and a major supplier of metallurgical coal to the global steelmaking industry.