Orosur Mining Inc. · TSXV:OMI

Orosur Mining — Uruguay Mineral Exploration — Q4 2008 Earnings Presentation

9 slides from Orosur Mining's earnings presentation, Jul 17, 2008

  1. Slide 1: Uruguay Mineral Exploration 4Q08 Exploration Results

    Uruguay Mineral Exploration 4Q08 Exploration Results July 17, 2008 This presentation should be read in conjunction with the announcement of 4Q07/08 Exploration Results and Exploration Report for May 31, 2008 1

  2. Slide 2: Conference Call Hosts

    Conference Call Hosts Tony Shearer, Chairman David Fowler, Chief Executive Officer George Schroer, Vice President Exploration 2

  3. Slide 3: 4Q08 Exploration Highlights

    4Q08 Exploration Highlights Isla Cristalina: San Gregorio Near Mine • Near Mine Deep Drilling – Identified higher grade mineralization down plunge at Arenal – Program to infill and extend mineralisation in this zone – Second mineralised intercept 100 mts below existing shear hosting Arenal gold depo

  4. Slide 4: Arenal – Cross Section of Deeper Drilling

    Arenal – Cross Section of Deeper Drilling 4

  5. Slide 5: 4Q08 Exploration Highlights (cont.)

    4Q08 Exploration Highlights (cont.) Isla Cristalina – Regional Exploration • Vichadero: soil sampling has defined two gold anomalous areas • New prospects being defined in a 30 x 5 corridor Southern Uruguay • Presidente Terra: 50% of the twelve initial holes have hit intercepts of +1 g/t Au • Crucer

  6. Slide 6: Southern Uruguay: Presidente Terra – Planned Drilled Holes

    Southern Uruguay: Presidente Terra – Planned Drilled Holes Began drill program to test surface geochemical anomalies April 2008 First pass drill program of 51 drill holes will test southern and northern portion of exploration permits 12 holes completed by 4Q08. All intercepted the structural / vein

  7. Slide 7: Veins Identified in the Casupa/Crucera District

    Veins Identified in the Casupa/Crucera District May 2007 May 2008 7

  8. Slide 8: Next Steps

    Next Steps • Late July / early August: UME to provide details of its base case three-year mine plan and strategies to improve this plan • August 13, 2008: UME to release 4Q07/08 results • March 2009: UME to provide full update of resources and reserves, once drilling and modeling on the deeper drill

  9. Slide 9: Contacts

    Contacts Uruguay Mineral Exploration Inc Tony Shearer, Chairman: +44 (0)20 7602 1570; tonyshearer@btinternet.com David Fowler, CEO: + 598 2 6016354; urumin@ume.com.uy Investor/Media Relations Emily Bruning, Shared Value Ltd: +44 (0) 20 7321 5027; ebruning@sharedvalue.net Investor Relations in North

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