Boroo Production and Reserves

PRODUCTION 2003 2004 2005 2006 2007 2008 2009 2010
Heap Leach Tonnes ore mined (000s) _ _ _ _ 3,601 3,629 3,481 1,694
Tonnes ore mined (000s) 145 1,884 2,865 3,082(4) 2,362 2,416 2,913 2,399
Tonnes ore milled (000s) 113 1,850 2,231 2,387 2,549 2,496 2,077 2,466
Average Mill feed grade 
(grams/tonne)		 2.9 4.5 4.2 4.3 3.6 2.7 2.6 1.9(6)
Recovery (%) 97.0 93.7 91.5 87.0 85.3 77.7 72.9 71.8
Ounces of gold poured (1)(2)
(000s)		 4 246 286 283 255 193 151 111
UNIT PRODUCTION CASH COSTS (3) 
per tonne milled - $ _ 17.57 23.49 25.77 24.35 29.52 33.04 27.08(6)
per ounce - $  _ 149 183 217 244 382 456 601(6)

Table Continued Below
PRODUCTION 2011 2012            
Heap Leach Tonnes ore mined (000s) _ 143            
Tonnes ore mined (000s) _ 907            
Tonnes ore milled (000s) 2,340 2,382            
Average Mill feed grade 
(grams/tonne)		 1.1 1.3            
Recovery (%) 68.9 64.0            
Ounces of gold poured (1)(2)
(000s)		 59 72            
UNIT PRODUCTION CASH COSTS (3) 
per tonne milled - $ 17.56 21.07            
per ounce - $  694 699            
  1. 100% basis, Centerra’s equity interest is 100% since October 17, 2007
  2. Gold poured in 2003 & 2004 includes pre-commissioning production for December 2003 and January and February 2004
  3. Cash Cost is a Non-GAAP measure
  4. Excludes heap leach ore
  5. Heap leach included as of 2007
  6. Restated to exclude community investments costs

 

RESERVES AND RESOURCES

The following table shows Boroo's estimated gold reserves and resources at December 31, 2012:

  TONNES
(000s) 		 GRADE
Grams/tonne		 CONTAINED GOLD
Ounces (000s) 
RESERVES      
Proven 7,196 0.8 178
Probable - - -
Total reserves  7,196 0.8 178

RESOURCES		      
Measured  452 2.2 32
Indicated  4,464 1.5 210
Total measured and indicated resources 4,916 1.5 242
Inferred resources 7,323 1.0 235
Updated: 2013-02-28

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