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Production Track Record OVERBURDEN REMOVAL VOLUME (mn bcm) 348.1 334.1 -14% 277.7 292.3 262.1 264.3 227.9 COAL GETTING (mn tons) Delta Dunia 36.4 34.7 34.5 35.0 32.8 -2% 25.0 24.5 2008 2009 2010 2011 2012 9H12 9H13 2008 2009 2010 2011 2012 9M12 9M13 COAL HAULING (mn tons) 12.9 12.2 12.4 11.5 10.6 7.6 IMPLIED STRIPPING RATIO (x) -12% 10.6 10.1 9.6 9.3 +29% 8.5 8.3 9.9 7.2 2008 2009 2010 2011 2012 9M12 9M13 2008 2009 2010 2011 2012 9M 12 9M 13 6

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