6 T S X F N I Mar 14 G ui danc e A c t ual R eached F ul l P roduct i on H1 H1 C ont ai ned N i M l bs 12 1 t o 13 5 12 8 C ont ai ned C u M l bs 7 2 to 7 9 7 5 M i ne O perat i ng C ost s M 55 3 t o 60 8 Low er end L o c k e r by 2013 De liv e r in g R e sult s