Vale - mining company - was created in 1942.
Western Mining Company was created in 2000.
Stillwater Mining Company was created in 1992.
Maryland Mining Company was created in 1836.
Talvivaara Mining Company was created in 2004.
Buenaventura - Mining company - was created in 1953.
Milpo - Mining company - was created in 1949.
Noranda - mining company - was created in 1922.
Yanzhou Coal Mining Company was created in 1997.
Alaska-Gastineau Mining Company was created in 1911.
Aniche Mining Company was created on 1773-11-11.
Scots Mining Company House was created in 1736.
Alaska-Juneau Gold Mining Company was created in 1897.