Dia Bras Exploration Inc. (TSX VENTURE:DIB) reports results from its Bolivar pilot-mining and Cusi advanced development programs in Chihuahua, Mexico, for the fourth quarter ending December 31, 2010 and cumulative results for the full year.
Dia Bras is providing these production statistics from its Mexican operations in order to provide shareholders with a more timely review of recent operational performance. The numbers are preliminary and subject to adjustment. Updated 2010 guidance will be provided with the release of the audited Annual Financial Statements and Management Discussion and Analysis.
Bolivar
Table 1 – Bolivar Pilot-Mining
Summary of Comparative Statistics for Fourth Quarter and Full Year Ended December 31, 2010 and 2009
| % | Actual | Actual | % | |||
| Variation | Full | Full | Variation | |||
| 2010 | Year | Year | 2010 | |||
| Actual | Actual | Over | Cumulative | Cumulative | Over | |
| Q4-2010 | Q4-2009 | 2009 | 2010 | 2009 | 2009 | |
| Tonnes processed | 22,625 | 21,610 | 4.70 | 104,822 | 89,577 | 17.02 |
| Daily throughput | 259 | 247 | 4.86 | 300 | 256 | 17.19 |
| Copper grade | 1.45% | 1.79% | -19.00 | 1.45% | 1.81% | -19.89 |
| Zinc grade | 7.33% | 10.09% | -27.35 | 8.59% | 10.06% | -14.61 |
| Copper recovery | 88.40% | 89.62% | -1.36 | 86.57% | 87.51% | -1.07 |
| Zinc recovery | 86.93% | 89.43% | -2.80 | 88.45% | 89.04% | -0.66 |
| Total production of copper (pounds) | 638,300 | 764,097 | -16.46 | 2,900,700 | 3,122,783 | -7.11 |
| Total production of zinc (pounds) | 3,180,200 | 4,297,664 | -25.98 | 17,556,100 | 17,686,209 | -0.73 |
| Average price of copper per pound, $US | $3.92 | $3.02 | 29.80 | $3.42 | $2.33 | 46.78 |
| Average price of zinc per pound, $US | $1.05 | $1.00 | 5.00 | $0.98 | $0.75 | 30.67 |
| $114.69 | $95.25 | -20.41 | $98.20 | $92.10 | -6.62 | |
| Operating cash costs US$/DMT | ||||||
| Foreign exchange rate, 2010 average Mexican Peso : US Dollar | 12.3920 | 13.0731 | -5.21 | 12.6333 | 13.5125 | -6.51 |
Cusi
Table 2 – Cusi Advanced Development
Summary of Comparative Statistics for Fourth Quarter and Full Year Ended December 31, 2010 and 2009
| % | Actual | Actual | % | |||
| Variation | Full | Full | Variation | |||
| 2010 | Year | Year | 2010 | |||
| Actual | Actual | Over | Cumulative | Cumulative | Over | |
| Q4-2010 | Q4-2009 | 2009 | 2010 | 2009 | 2009 | |
| Tonnes processed | 6,454 | 3,945 | 63.60 | 24,737 | 6,232 | 296.94 |
| Daily throughput | 74 | 45 | 64.44 | 71 | 36 | 97.22 |
| Silver grade in grams per tonne (g/t) | 298 | 284 | 4.93 | 278 | 283 | -1.77 |
| Lead grade | 1.11% | 0.62% | 79.03 | 0.85% | 0.90% | -5.56 |
| Silver recovery, flotation + leach | 79.86% | 65.78% | 21.40 | 79.94% | 64.26% | 24.40 |
| Lead recovery | 56.75% | 50.80% | 11.71 | 50.26% | 54.01% | -6.94 |
| Total production of Silver, flotation + leaching (oz) (includes Silver dor¨¦) | 48,229 | 23,662 | 103.83 | 166,965 | 36,489 | 357.58 |
| Total production of Silver dor¨¦ (oz) | 4,578 | 181 | 2,429.28 | 14,522 | 181 | 7,923.20 |
| Total production of Lead (pounds) | 89,270 | 27,325 | 226.70 | 234,081 | 66,655 | 251.18 |
| Operating cash cost US$/tonne milled | 96.07 | 99.92 | 3.85 | 70.88 | 159.33 | 55.51 |
| Average price of Silver per ounce, $US | $26.43 | $17.57 | 50.43 | $20.16 | $16.34 | 23.37 |
| Average price of Lead per pound, $US | $1.08 | $1.04 | 3.85 | $0.97 | $0.96 | 1.04 |
About Dia Bras
Dia Bras is a Canadian exploration mining company focused on precious and base metals in Chihuahua State and other areas of northern Mexico. The Company is pursuing the development and exploration of its most advanced assets ¨C the Bolivar Property (copper©\zinc©\silver) and the Cusi Property (silver). Dia Bras is also exploring several precious metal targets such as La Cascada project at the Bolivar Property, the Las Coloradas project at Melchor Ocampo (Zacatecas State), the Bacerac Property (Sonora State) and the La Verde project at the Batopilas Property (Chihuahua State).
