Exhibit 21
CLIFFS NATURAL RESOURCES INC. AND ITS SUBSIDIARIES AND AFFILIATES
As of December 31, 2010
| Name |
Cliffs’ Effective Ownership |
Place of Incorporation | ||||
| Cliffs Natural Resources Inc. |
Ohio, USA | |||||
| 7261489 Canada Inc. |
100 | % | Ontario, Canada | |||
| 7280831 Canada Inc. |
100 | % | Ontario, Canada | |||
| 7557558 Canada Inc. |
100 | % | Ontario, Canada | |||
| 9223-0945 Québec Inc. |
100 | % | Québec, Canada | |||
| Anglo Ferrous Amapá Mineração Ltda. |
30 | % | Brazil | |||
| Anglo Ferrous Logística Amapá Ltda. |
30 | % | Brazil | |||
| Arnaud Railway Company |
100 | % | Quebec, Canada | |||
| AusQuest Limited |
30 | % | WA Australia | |||
| Barcomba Joint Venture (unincorporated JV) |
50 | % | WA Australia | |||
| Beard Pinnacle, LLC |
100 | % | Oklahoma, USA | |||
| Blackstone Ventures Inc. |
9.9 | % | B.C., Canada | |||
| CALipso Sales Company |
82.40 | % | Delaware, USA | |||
| Centennial Asset Participações Amapá S.A. |
100 | % | Brazil | |||
| Cleveland-Cliffs International Holding Company |
100 | % | Delaware, USA | |||
| Cleveland-Cliffs Ore Corporation |
100 | % | Ohio, USA | |||
| CLF PinnOak LLC |
100 | % | Delaware, USA | |||
| Cliffs (Gibraltar) Holdings Limited |
100 | % | Gibraltar | |||
| Cliffs (Gibraltar) Holdings Limited Luxembourg S.C.S. |
100 | % | Luxembourg | |||
| Cliffs (Gibraltar) Limited |
100 | % | Gibraltar | |||
| Cliffs (Gibraltar) Mather III Limited (in liquidation) |
100 | % | Gibraltar | |||
| Cliffs (US) Mather I LLC |
100 | % | Delaware, USA | |||
| Cliffs and Associates Limited |
82.40 | % | Trinidad | |||
| Cliffs Asia Pacific Iron Ore Finance Pty Ltd |
100 | % | WA Australia | |||
| Cliffs Asia Pacific Iron Ore Holdings Pty Ltd (fka Portman Limited) |
100 | % | SA Australia | |||
| Cliffs Asia Pacific Iron Ore Investments Pty Ltd |
100 | % | QLD Australia | |||
| Cliffs Asia Pacific Iron Ore Management Pty Ltd |
100 | % | NSW Australia | |||
| Cliffs Asia Pacific Iron Ore Pty Ltd (fka Portman Iron Ore Limited) |
100 | % | NSW Australia | |||
| Cliffs Australia Coal Pty Ltd |
100 | % | QLD Australia | |||
| Cliffs Australia Holdings Pty Ltd |
100 | % | QLD Australia | |||
| Cliffs Australia Washplant Operations Pty Ltd |
100 | % | QLD Australia | |||
| Cliffs Biwabik Ore Corporation |
100 | % | Minnesota, USA | |||
| Cliffs Brown B.V. |
100 | % | The Netherlands | |||
| Cliffs Empire, Inc. |
100 | % | Michigan, USA | |||
| Cliffs Erie L.L.C. |
100 | % | Delaware, USA | |||
| Cliffs Exploration Holdings Company |
100 | % | Delaware, USA | |||
| Cliffs Exploraciones Peru S.A.C. |
100 | % | Peru | |||
| Cliffs Greene B.V. |
100 | % | The Netherlands | |||
| Cliffs Harrison B.V. |
100 | % | The Netherlands | |||
| Cliffs International Lux I S.à r.l. |
100 | % | Luxembourg | |||
| Cliffs International Lux II S.à r.l. |
100 | % | Luxembourg | |||
| Cliffs International Lux IV S.à r.l. (In Liquidation) |
100 | % | Luxembourg | |||
| Cliffs International Luxembourg S.à r.l. |
100 | % | Luxembourg | |||
| Cliffs International Management Company LLC |
100 | % | Delaware, USA | |||
| Cliffs International Mineraçâo Brasil Ltda. |
100 | % | Brazil | |||
| Cliffs Logan County Coal, LLC (fka INR-WV Operating, LLC) |
100 | % | Delaware, USA | |||
| Cliffs Logan County Coal Terminals, LLC (fka INR Terminals, LLC) |
100 | % | Delaware, USA | |||
| Cliffs Logan County Holdings, LLC (fka INR-1 Holdings, LLC) |
100 | % | Delaware, USA | |||
| Name |
Cliffs’ Effective Ownership |
Place of Incorporation | ||||
| Cliffs Marquette, Inc. |
100 | % | Michigan, USA | |||
| Cliffs Minera Peru S.A.C. |
100 | % | Peru | |||
| Cliffs Mineração Ltda. |
100 | % | Brazil | |||
| Cliffs Mining Company (fka Pickands Mather & Co.) |
100 | % | Delaware, USA | |||
| Cliffs Mining Services Company |
100 | % | Delaware, USA | |||
| Cliffs Minnesota Mining Company |
100 | % | Delaware, USA | |||
| Cliffs Natural Gas Company |
100 | % | Delaware, USA | |||
| Cliffs Natural Resources Exploration Argentina S.R.L. |
100 | % | Republic of Argentina | |||
| Cliffs Natural Resources Exploration B.V. |
100 | % | Netherlands | |||
| Cliffs Natural Resources Exploration Canada Inc. |
100 | % | Ontario, Canada | |||
| Cliffs Natural Resources Exploration Chile Limitada. |
100 | % | Chile | |||
| Cliffs Natural Resources Exploration Inc. |
100 | % | Delaware, USA | |||
| Cliffs Natural Resources Holdings Pty Ltd |
100 | % | WA Australia | |||
| Cliffs Natural Resources Luxembourg S.à r.l. |
100 | % | Luxembourg | |||
| Cliffs Natural Resources Pty Ltd (fka Cliffs Asia-Pacific Pty Limited) |
100 | % | WA Australia | |||
| Cliffs Netherlands B.V. |
100 | % | The Netherlands | |||
| Cliffs North American Coal LLC (fka PinnOak Resources, LLC) |
100 | % | Delaware, USA | |||
| Cliffs Oil Shale Corp. |
100 | % | Colorado, USA | |||
| Cliffs Reduced Iron Corporation |
100 | % | Delaware, USA | |||
| Cliffs Reduced Iron Management Company |
100 | % | Delaware, USA | |||
| Cliffs Renewable Energies LLC |
100 | % | Delaware, USA | |||
| Cliffs Sales Company (fka Northshore Sales Company) |
100 | % | Ohio, USA | |||
| Cliffs Scovil B.V. |
100 | % | The Netherlands | |||
| Cliffs Sterling B.V. |
100 | % | The Netherlands | |||
| Cliffs Technical Products LLC |
100 | % | Delaware, USA | |||
| Cliffs TIOP, Inc. (fka Cliffs MC Empire, Inc.) |
100 | % | Michigan, USA | |||
| Cliffs UTAC Holding LLC |
100 | % | Delaware, USA | |||
| Cliffs West Virginia Coal, Inc. (fka Cliffs Merger Sub) |
100 | % | Delaware | |||
| CNR Exploration Mexico S. de R.L. de C.V. |
100 | % | Mexico | |||
| Cockatoo Island Holdings Pty Ltd |
100 | % | NSW Australia | |||
| Cockatoo Iron Ore Joint Venture (unincorporated JV) |
50 | % | SA Australia | |||
| Cockatoo Mining Pty Ltd |
50 | % | WA Australia | |||
| Currawong Coal Pty Ltd |
50 | % | NSW Australia | |||
| Empire Iron Mining Partnership |
79 | % | Michigan, USA | |||
| Emerald Joint Venture (unincorporated JV) |
50 | % | WA Australia | |||
| First Point Minerals Corporation |
15 | % | Alberta, Canada | |||
| Freewest Resources Inc. |
100 | % | Quebec, Canada | |||
| Freewest Resources Canada Inc. |
100 | % | Quebec, Canada | |||
| Gedex Inc. |
8.6 | % | Ontario, Canada | |||
| Golden West Resources Limited |
14.75 | % | WA Australia | |||
| Hibbing Development Company |
39 | % | Minnesota, USA | |||
| Hibbing Taconite Company |
23 | % | Minnesota, USA | |||
| IronUnits LLC |
100 | % | Delaware, USA | |||
| Knoll Lake Minerals Limited |
58.3 | % | Canada | |||
| Koolyanobbing Iron Pty Ltd |
100 | % | WA Australia | |||
| KWG Resources Inc. |
18.81 | % | Quebec, Canada | |||
| Lake Superior & Ishpeming Railroad Company |
100 | % | Michigan, USA | |||
| MABCO Steam Company, LLC |
40.467 | % | Delaware, USA | |||
| Marquette Iron Mining Partnership |
100 | % | Michigan, USA | |||
| Marquette Range Coal Service Company |
82.086 | % | Michigan, USA | |||
| Maryborough Joint Venture (unincorporated JV) |
50 | % | WA Australia | |||
| Name |
Cliffs’ Effective Ownership |
Place of Incorporation | ||||
| Michigan Iron Nugget LLC |
50 | % | Delaware, USA | |||
| Midway Ore Company Ltd.—Minerais Midway Ltee |
100 | % | Quebec, Canada | |||
| Mt. Finnerty Joint Venture |
80 | % | WA Australia | |||
| Minera Cerro Juncal S.A. |
100 | % | Republic of Argentina | |||
| Mount Inglis Joint Venture (unincorporated JV) |
50 | % | WA Australia | |||
| Northern Conservation, LLC |
100 | % | Minnesota, USA | |||
| Northern Land Company Limited |
50 | % | Newfoundland, Canada | |||
| Northshore Mining Company |
100 | % | Delaware, USA | |||
| Oak Grove Land Company, LLC |
100 | % | Delaware, USA | |||
| Oak Grove Resources, LLC |
100 | % | Delaware, USA | |||
| Pickands Hibbing Corporation |
100 | % | Minnesota, USA | |||
| Pinnacle Land Company, LLC |
100 | % | Delaware, USA | |||
| Pinnacle Mining Company, LLC |
100 | % | Delaware, USA | |||
| PinnOak Coal Sales, LLC |
100 | % | Delaware, USA | |||
| Pluton Resources Limited |
10.85 | % | Victoria, Australia | |||
| PolyMet Mining Corporation |
5.95 | % | BC, Canada | |||
| Portman Coal Investments Pty Ltd |
100 | % | WA Australia | |||
| Portman Iron Ore Limited (fka Esperance Iron Limited) |
100 | % | WA Australia | |||
| Portman Limited (fka Pelsoil Limited) |
100 | % | Australia | |||
| Portman Mining Limited |
100 | % | NA Australia | |||
| Renewafuel, LLC |
94.55 | % | Minnesota, USA | |||
| Republic Wetlands Preserve LLC |
100 | % | Michigan, USA | |||
| Riverside Resources Inc. |
9.94 | % | British Columbia, Canada | |||
| Seignelay Resources, Inc. (fka Angola Services Corporation) |
100 | % | Delaware, USA | |||
| Silver Bay Power Company |
100 | % | Delaware, USA | |||
| Sociedad Contractual Minera Tierra Noble (fka Sociedad Contractual Minera Mariana de Chile) |
70 | % | Santiago, Chile | |||
| Sonoma Coal Project |
8.33 | % | QLD Australia | |||
| Sonoma Mine Management Pty Ltd |
45 | % | QLD Australia | |||
| Southern Eagle Land, LLC |
100 | % | Delaware, USA | |||
| Spider Resources Inc. [(Newco) 10/6/10] |
100 | % | Ontario, Canada | |||
| Springleigh Joint Venture (unincorporated JV) |
50 | % | WA Australia | |||
| St Lawrence Joint Venture (unincorporated JV) |
50 | % | WA Australia | |||
| Syracuse Mining Company |
100 | % | Minnesota, USA | |||
| The Cleveland-Cliffs Iron Company |
100 | % | Ohio, USA | |||
| The Cleveland-Cliffs Steamship Company |
100 | % | Delaware, USA | |||
| Tilden Mining Company L.C. |
85 | % | Michigan, USA | |||
| Twin Falls Power Corporation Limited |
25.89 | % | Canada | |||
| Toney’s Fork Land, LLC |
100 | % | Delaware, USA | |||
| United Taconite LLC |
100 | % | Delaware, USA | |||
| Wabush Iron Co. Limited |
100 | % | Ohio, USA | |||
| Wabush Lake Railway Company, Limited |
100 | % | Newfoundland, Canada | |||
| Wabush Mines (unincorporated JV) |
100 | % | Newfoundland, Canada | |||
| Wabush Resources Inc. |
100 | % | Ontario, Canada | |||
| Zenyatta Ventures Ltd. |
11.81 | % | Ontario, Canada | |||