Overview

Oro Silver Resources Ltd. is a silver exploration company pursuing early and advanced stage silver-based opportunities primarily in Mexico. The company is focused on:

• Developing resources and optimizing the milling processes at its El Compas and Vetagrande Mine projects in Zacatecas, Mexico
• Completing additional strategic acquisitions
• Rapidly advancing active projects towards new discoveries

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.

Chief Properties

Vetagrande Mine & Mill

Project Highlights:

• Vetagrande project is located 7km north of the Zacatecas State capital
• Consists of 9 concessions covering 293 hectares
• Potential for 100 million silver-equivalent ounces
• Control +2km of Vetagrande vein strike extend with numerous parallel vein occurrences
• Partially mined to 250 metre vertical; + 500 metre vertical potential
• Includes upgradable 150-tonne per day mill with permitted tailings area; good expansion and optimization potential
• Potential in-situ resource acquisition cost <$1/oz silver-equivalent

2008 Work Plan:

• Underground surveying and sampling
• Surface +5,000 metres drilling program – Q3 2008
• Underground drilling program planned for late fall 2008, early 2009
• Initiation of engineering and metallurgical studies
• Evaluation of surface and underground facilities
• Upgrading mill to +300-350 t/day

El Compas Mine

Project Highlights:

• El Compas project is located 4km south of the Zacatecas State capital
• Consists of 10 concessions covering 2,158 hectares
• Recently in operation at 50-70 t/day rate – OSR acquired exploitation rights in 2007
• Completed a 5,200 m core drilling program in 2007-08 with best results of 6.9 g/t gold and 45 g/t silver over 18 metres
• Drilling outlined two near-surface ore shoots, confirming potential for 2 to 8 metres wide veins at +6 g/t gold-equivalent
• Excellent infrastructure with roads, power and operating mill located within 10 km
• Potential in-situ resource acquisition cost <$10/oz gold-equivalent

2008 Work Plan:

• +5,000 core drilling program completed
• Modeling and resource estimation – Q3 2008
• Engineering & metallurgical studies – Q3/Q4 2008

The Zacatecas/Fresnillo districts, located in the State of Zacatecas, Central Mexico, host one of the world’s largest historic silver belt with past production estimated at 1.5 billion ounces silver.

Management

• President, Darren Bahrey, BSc
• Chairman, Greg Cox, MSc
• CEO & VP Exploration, Herve Thiboutot, P. Ing
• COO, Thomas Bagan, P.Eng, MBA
• CFO, Peter Kendrick, MBA
• Director of Engineering, Rob Gardiner, P.Eng
• Project Manager, Eric Grill
• Project Manager, Jorge Ortega, MSc

Independent Directors

• Derek White, CA
• Greg Martin, MBA
• Mark Pryor

Directors

• Greg Cox, MSc
• Herve Thiboutot, P.Eng
• Darren Bahrey
• Brian Fowler, PGeo

Media Links

Korelin Economics Audio Interview with Oro Silver President, Darren Bahrey, June 2008

Resource Opportunities coverage, June 2008

Jay Taylor coverage, September 2007

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