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About Company  Technical and economic factors
| Unit of measure | 2005 | 2006 | 2007 | 2008 | 2009 | | Mass | thou.ì3 | 18650 | 18550 | 18780 | 18430 | 15400 | Ore mining | thou.ton | 27550 | 27090 | 27780 | 27570 | 28200 | | Ore processing | thou.ton | 25300 | 25500 | 25600 | 25640 | 25920 | Concentrate
production Cu | ton | 515777 | 537743 | 543190 | 525264 | 533083 | Mo | ton | 2469 | 3022 | 3978.05 | 3795 | 4769 | | Ore content Cu | % | 0.588 | 0.594 | 0.593 | 0.579 | 0,565 | Mo | % | 0.0192 | 0.019 | 0.019 | 0.018 | 0,0206 | | Metal recovery Cu | % | 85.09 | 85.46 | 85.8 | 86.15 | 86,43 | Mo | % | 24,48 | 29,5 | 40,59 | 40.82 | 45,01 | | Metal content in concentrate Cu | % | 24.54 | 24.12 | 23.96 | 24.14 | 23,73 | | Mo | % | 48.13 | 46.46 | 49.74 | 50.06 | 50,51 | | Amount of metal in concentrate Cu | ton | 126547 | 129693 | 130160 | 126796 | 126485 | Mo | ton | 1188 | 1404 | 1978.67 | 1900 | 2409 | Copper cathode price
in the world market
| $/ton | 3679 | 6722 | 7118.53 | 6955,88 | 5149,74 | | Sale of products | mil.$ | 383.0 | 696.5 | 850.8 | 765.2 | 572,2 | | Cost of products | mil.$ | 176.4 | 363.6 | 566.4 | 756.9 | 436,9 | Pre-tax profit | mil.$ | 199.3 | 318.5 | 263.2 | 39.5 | 115,8 |
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