Companies featured in this segment: Caterpillar Incorporated (NYSE:CAT), Bucyrus International Incorporated (NASDAQ:BUCY), Cliffs Natural Resources Incorporated (NYSE:CLF), Freeport-McMoRan Copper & Gold Incorporated (NYSE:FCX), BHP Billiton Limited (NYSE:BHP), Potash Corporation (NYSE:POT), Rock-Tenn Company (NYSE:RKT), Smurfit-Stone Container Corporation (NYSE:SSCC), Consolidated Thompson Iron Ore Mines Limited (TSX:CLM), Vedanta Resources plc (LSE:VED)