SAN GREGORIO OPERATION
OVERVIEW
The San Gregorio gold operation, located within the Isla Cristalina Belt, comprises a number of open pit mines and a processing plant. The mineralized system covers a 7 kilometre shear zone with three major deposits identified to date - Arenal, San Gregorio and Santa Teresa, which have collectivelly produced more than 800,000 ounces.

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Potential underground deposits also exist as extensions to the San Gregorio and Arenal open pits. Ongoing exploration work takes place both within the mine areas and at several prospects in the Minas de Corrales goldfield.
Production statistics for the past five years of operation:
| Year to 31 May |
Unit |
9Mo2008 |
FY2007 |
FY2006 |
FY2005 |
FY2004 |
| Open pit ore mined |
Tonnes |
1,390,642 |
1,260,551 |
1,049,869 |
1,164,790 |
1,003,825 |
| Open pit waste mined |
Tonnes |
8,711,832 |
10,929,543 |
9,224,489 |
5,714,190 |
4,105,644 |
| Ore processed |
Tonnes |
933,961 |
1,312,999 |
1,266,529 |
1,194,630 |
941,443 |
| Gold produced |
Ounces |
69,931 |
96,420 |
101,287 |
74,525 |
48,241 |
| Gold grade |
Au/t |
2.52 |
2.45 |
2.63 |
2.04 |
1.71 |
| Recovery |
% |
92.3% |
93.1% |
93.7% |
95.1% |
92.9% |
Note: UME has operated the San Gregorio mine since 1 October 2003.
Additional information on operations, including mining method and equipment, process flowsheet and flowchart, infrastructure and services and laboratory can be found in the following pdf document.
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