Exhibit 21
Subsidiaries of Cleveland-Cliffs Inc - ------------------------------------ Jurisdiction of Incorporation Name of Subsidiary or Organization - ------------------ ---------------- Cleveland-Cliffs Ore Corporation (1), (2) Ohio Cliffs and Associates Limited (3) Trinidad Cliffs Biwabik Ore Corporation (2) Minnesota Cliffs Copper Corp. Ohio Cliffs Empire, Inc. (1), (4), (14) Michigan Cliffs Forest Products Company (1) Michigan Cliffs Fuel Service Company (1) Michigan Cliffs IH Empire, Inc. (1), (14) Michigan Cliffs Marquette, Inc. (1), (2) Michigan Cliffs MC Empire, Inc. (1), (4) Michigan Cliffs Mining Company Delaware Cliffs Mining Services Company Delaware Cliffs Minnesota Minerals Company Minnesota Cliffs Oil Shale Corp. (2) Colorado Cliffs of Canada Limited (1) Ontario, Canada Cliffs Reduced Iron Corporation Delaware Cliffs Reduced Iron Management Company (5) Delaware Cliffs Resources, Inc. Delaware Cliffs Synfuel Corp. (2) Utah Cliffs TIOP, Inc. (1), (6) Michigan Empire-Cliffs Partnership (4) Michigan Empire Iron Mining Partnership (7) Michigan Escanaba Properties Company (1) Michigan Hibbing Taconite Company, a joint venture (8) Minnesota IronUnits.com LLC Delaware Kentucky Coal Company Delaware Lake Superior & Ishpeming Railroad Company (9) Michigan Lasco Development Corporation (9) Michigan Marquette Iron Mining Partnership (2) Michigan Minerais Midway Ltee-Midway Ore Company Ltd. (10) Quebec, Canada Northshore Mining Company (11) Delaware Northshore Sales Company (12) Ohio Pickands Erie Corporation (10) Minnesota Pickands Hibbing Corporation (8) Minnesota Pickands Mather & Co. International Delaware Pickands Radio Co. Ltd. (10) Quebec, Canada Seignelay Resources, Inc. (10) Delaware Silver Bay Power Company (12) Delaware Syracuse Mining Company (10) Minnesota The Cleveland-Cliffs Iron Company Ohio The Cleveland-Cliffs Steamship Company (1) Delaware Tilden Mining Company L.C. (6) Michigan Wabush Iron Co. Limited (13) Ohio Wheeling-Pittsburgh/Cliffs Partnership (14) Michigan
See footnote explanation on page 61. -60- (1) The named subsidiary is a wholly-owned subsidiary of The Cleveland-Cliffs Iron Company, which in turn is a wholly-owned subsidiary of Cleveland-Cliffs Inc. (2) Marquette Iron Mining Partnership ("Marquette Partnership") is a Michigan partnership. Cleveland-Cliffs Ore Corporation and Cliffs Marquette, Inc., wholly-owned subsidiaries of The Cleveland-Cliffs Iron Company, have a combined 100% interest in the Marquette Partnership. Cleveland-Cliffs Ore Corporation also owns 100% of Cliffs Biwabik Ore Corporation. The Marquette Partnership owns 100% of Cliffs Oil Shale Corp. and Cliffs Synfuel Corp. (3) Cliffs and Associates Limited is a Trinidad corporation. Cliffs Reduced Iron Corporation has an 84.38% interest in Cliffs and Associates Limited. (4) Empire-Cliffs Partnership is a Michigan partnership. Cliffs MC Empire, Inc. and Cliffs Empire, Inc., wholly-owned subsidiaries of The Cleveland-Cliffs Iron Company, have a combined 100% interest in Empire-Cliffs Partnership. (5) The named subsidiary is a wholly-owned subsidiary of Cliffs Reduced Iron Corporation, which in turn is a wholly-owned subsidiary of Cleveland-Cliffs Inc. (6) Tilden Mining Company L.C. is a Michigan limited liability company. Cliffs TIOP, Inc., a wholly-owned subsidiary of The Cleveland-Cliffs Iron Company, has a 40% interest in Tilden Mining Company L.C. (7) Empire Iron Mining Partnership is a Michigan partnership. The Cleveland-Cliffs Iron Company has a 35% indirect interest in the Empire Iron Mining Partnership. (8) Cliffs Mining Company has a 10% and Pickands Hibbing Corporation, a wholly-owned subsidiary of Cliffs Mining Company, has a 5% interest in Hibbing Taconite Company, a joint venture. (9) Cliffs Resources, Inc. owns a 99.5% interest in Lake Superior & Ishpeming Railroad Company. Lasco Development Corporation is a wholly-owned subsidiary of Lake Superior & Ishpeming Railroad Company. (10) The named subsidiary is a wholly-owned subsidiary of Cliffs Mining Company, which in turn is a wholly-owned subsidiary of Cleveland-Cliffs Inc. (11) The named subsidiary is a wholly-owned subsidiary of Cliffs Minnesota Minerals Company, which in turn is a wholly-owned subsidiary of Cleveland-Cliffs Inc. (12) The named subsidiary is a wholly-owned subsidiary of Northshore Mining Company, which in turn is a wholly-owned subsidiary of Cliffs Minnesota Minerals Company. (13) Wabush Iron Co. Limited is an Ohio corporation. Cliffs Mining Company owns a 60.16% interest in Wabush Iron Co. Limited, which owns 37.87% interest in Wabush Mines. (14) Wheeling-Pittsburgh/Cliffs Partnership ("W-P/Cliffs Partnership") is a Michigan partnership. Cliffs Empire, Inc. and Cliffs IH Empire, Inc., wholly-owned subsidiaries of The Cleveland-Cliffs Iron Company, have a combined 100% interest in W-P/Cliffs Partnership. -61-