Oro Silver Resources Ltd.
TSX VENTURE : OSR

Oro Silver Resources Ltd.

March 25, 2008 09:30 ET

Oro Silver Drills 8.2 g/t Au and 89 g/t Ag Over 2.6 Metres; Extends the Adit Zone at El Compas Mine, Zacatecas, Mexico

VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 25, 2008) - Oro Silver Resources Ltd. ("Oro Silver") (TSX VENTURE:OSR) is pleased to report encouraging results from its drilling program at its El Compas Mine property in Zacatecas, Mexico. The drilling confirms and expands the gold and silver continuity of the El Compas Adit zone.

Drill holes 08COM008 and 011 establish a depth extension to at least 60 metres below the underground workings on two, parallel gold and silver-bearing veins that constitute the Adit Zone:



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From To Interval True Width Au Ag
Drill Hole (m) (m) (m) (m) (g/t) (g/t)
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08COM008 86.00 94.40 8.40 6.13 2.95 167.0
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including 86.00 88.90 2.90 2.12 3.56 260.0
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and 91.36 94.40 3.04 2.22 4.60 193.0
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08COM011 59.00 74.35 15.35 11.21 2.67 33.2
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including 59.51 61.95 2.56 1.89 8.19 89.4
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and 71.79 74.35 2.44 1.78 6.47 48.2
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Nine additional drill holes, for which assay results are pending, intersected mineralized quartz veins up to 8.25 metres wide. These holes suggest the potential for expanding the current dimensions of the Adit Zone to more than 200 metres in length and to a depth of at least 125 metres.

"We have successfully completed the 5,000 m drill program at El Compas and expect to add significant value to the property based on extending the El Compas ore chute at depth and discovering another significant parallel vein structure (El Orito), which has similar characteristics and potential to El Compas," stated Herve Thiboutot, Vice-President Exploration & Development of Oro Silver.

The longitudinal section (which can viewed in the company's website) shows the location of Oro Silver's current drill holes. All intervals are down-hole lengths.

To view the El Compas Project map please click on the following link: http://media3.marketwire.com/docs/elcompas.pdf.

Quality control

Oro Silver maintains strict quality control programs. All samples were submitted directly to Inspectorate de Mexico, S.A de C.V., for preparation in Durango, Mexico, and analysis in Reno, Nevada. Analysis was conducted on 2 assay ton samples, with standards and blanks inserted every 30 samples. Analysis of Au was by fire assay, with a gravimetric finish on samples exceeding 3 g/t Au. Analysis of Ag was by atomic absorption, with a gravimetric finish on samples exceeding 200 g/t Ag. Triple acid digestion was used on all samples.

About Oro Silver

Oro Silver is a silver exploration company pursuing early and advanced stage silver-based opportunities primarily in the western hemisphere. The company is focused on (i) developing resources and optimizing mining processes at its El Compas and Vetagrande Mine projects in Zacatecas, Mexico, and (ii) completing additional strategic acquisitions. Oro Silver's strategy is to become a mid-tier silver producer through an aggressive acquisition and development plan focused on advanced-stage projects with known silver resources that exhibit potential for expansion.

ON BEHALF OF THE BOARD OF DIRECTORS,

Gregory Cox, President and CEO

Some statements in this release may contain forward-looking information. These statements include, but are not limited to, statements with respect to future exploration, development and production activities and future expenditures. These statements address future events and conditions and, as such, involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the statements. Such factors include, among others, the time and success of future exploration, development and production activities and the timing and amount of expenditures.

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

Contact Information

  • Oro Silver Resources Ltd.
    Gregory Cox
    President and CEO
    (604) 646-1586
    (604) 642-2411 (FAX)
    Website: www.orosilver.com