Results of Bulk Sample Tests

23 April 2009 IEOOBIFR8863/GBP/PLUS-exn GREAT WESTERN MINING CORPORATION PLC ("GWMC" or "the Company") The Directors of Great Western Mining Corporation plc, recipient of the 2008 PLUS Market Resource Stock of the Year Award, announced results of Bulk Sample Tests on recently acquired mining claims in the vicinity of its original holdings in Mineral County, Nevada. The tests were carried out by Hazen Research Laboratory in Colorado, U.S.A. Excerpts from the Bulk Sample Bottle Roll Leaching Test. Table 1. Head Assays: SAMPLE Cu% Oxide Cu U3 08 % H#1 9.5 9.7 0.014 Cu Skarn 6.07 5.54 na Table 2. Analytical & Extraction Results HEAD GRADE EXTRACTION % Sample Analyte Assayed Calculated Assayed Calculated Basis Basis H#1 Cu 9.51 9.1 94 99 U3 08 0.014 0.012 81 93 Cu Skarn Cu 6.07 5.7 88 93 a) assayed head extraction = (Cu in liquors)/(Cu in head) b) calculated head extraction = (Cu in liquors)/(Cu in liquors + tails) The calculated-basis numbers are more accurate because they are mostly comprised of assays performed on liquor samples, liquor samples are inherently uniform. In contrast, a sample from a solid ore is unlikely to be precisely representative of the larger body. Both experiments resulted in an excellent copper extraction (99 and 93%). The H#1 sample also yielded a uranium extraction of 93%. Commenting on the results, Chairman Emmett O'Connell said, "The Directors of Great Western Mining Corporation plc are delighted, if somewhat in awe, at the results achieved. It would appear from information to hand, that this deposit extends over a larger area than originally expected." Mr. O'Connell continued, "with regards the non-radioactive 'Cu-Skarn' sample, results of 5.7% copper, this was a pleasant surprise to the upside. Being some distance from sample H#1, it extends by a considerable degree the area of development potential for the short term, while medium term evaluation of our total uranium and precious metal values are examined." He concluded. ABOUT GREAT WESTERN MINING CORPORATION 1. GWMC is an Irish exploration company with approx 12 square kilometer of mineral claims in Nevada U.S.A. 2. GWMC owns 100% interest in all its claims. 3. GWMC is listed on the PLUS Market in London, trading symbol GWMO. 4. Web site: www.greatwesternmining.com 5. Your attention is drawn to earlier announcements of test results 23 Nov 2006, 19 Jan 2007, 1 Aug 2007, 25 Oct 2007, 24 Apr 2008, 15 Dec 2008, relating to gold, silver and uranium values on the Cabin Rock prospects in Mineral County, Nevada. 6. For further information: Emmett O'Connell Tel: +353 51 565844 Fax: +353 51 565884 email: emmett@iol.ie Liam McGratten, Director 087 274 5427 Melvyn Quiller, U.K. Director 0771 289 9588 End Great Western Mining Corporation plc
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