EXHIBIT T JOINT FILING AGREEMENT The undersigned agree that this Amendment No. 9 executed April 16, 2009 relating to the Common Shares (par value $0.125 per share) of Cliffs Natural Resources Inc. shall be filed on behalf of the undersigned. HARBINGER CAPITAL PARTNERS MASTER FUND I, LTD. By: Harbinger Capital Partners LLC By: Harbinger Holdings, LLC, Managing Member By: /s/ Philip Falcone ---------------------------------------- Name: Philip Falcone Title: Managing Member HARBINGER CAPITAL PARTNERS LLC By: Harbinger Holdings, LLC, Managing Member By: /s/ Philip Falcone ---------------------------------------- Name: Philip Falcone Title: Managing Member T-1 HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS FUND, L.P. By: Harbinger Capital Partners Special Situations GP, LLC By: Harbinger Holdings, LLC, Managing Member By: /s/ Philip Falcone ---------------------------------------- Name: Philip Falcone Title: Managing Member HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS GP, LLC By: Harbinger Holdings, LLC, Managing Member By: /s/ Philip Falcone ---------------------------------------- Name: Philip Falcone Title: Managing Member HARBINGER HOLDINGS, LLC By: /s/ Philip Falcone ---------------------------------------- Name: Philip Falcone Title: Managing Member T-2 /s/ Philip Falcone --------------------------------------------- Philip Falcone April 16, 2009 T-3