Latest Test Results

26 March 2010. GREAT WESTERN MINING CORPORATION PLC LATEST TEST RESULTS Great Western Mining Corp. plc ("GWM"), the Dublin-based mineral exploration company, announced today analytical test results covering the latest batch of mineral samples taken from its polymetalic development prospect in Mineral County, Nevada, U.S.A. GWM holds 100% interest in 34 square kilometers in the Huntoon Valley area. Analytical tests were carried out by Grand Junction Laboratories, Colorado, U.S.A. Significant results are given in the ten listed below. These show high values in heavy minerals, i.e., gold, silver, uranium, copper, lead and traces of strategic minerals molybdenum and tungsten. A full listing of all one hundred samples is available on the Company's website, http://greatwesternmining.com/index.php/test-results. They continue to show extensive mineralization around or adjacent to any mineral deposit at depth. All of the samples below were taken from trenches, pits, grab samples and adits along a southwestern trend of the Walker Lane in which lie the newly acquired mineral claims, announced on 4 November 2009. Sample No. Gold oz/ ton Silver oz/ ton Copper % Other % ---------------------------------------------------------------------------------------------- IWM-1 0.218 49.8 1.84 Pb: 7.21 U308: 0.018 ---------------------------------------------------------------------------------------------- IWM-5 2.20 151.0 U308: 0.013 ---------------------------------------------------------------------------------------------- GWM-201 0.04 56.2 1.65 ---------------------------------------------------------------------------------------------- GWM-208 0.001 0.36 6.67 U308: 0.002 ---------------------------------------------------------------------------------------------- GWM-209 0.008 0 8.37 U308: 0.002 ---------------------------------------------------------------------------------------------- GWM-220 0.002 12.5 5.64% WO : < 0.01 Mo: 0.03 ---------------------------------------------------------------------------------------------- GWM-229 0.026 7.11 7.21 ---------------------------------------------------------------------------------------------- GWM-257 0.028 0.18 8.27 ---------------------------------------------------------------------------------------------- S-495 0 0.47 13.5 ---------------------------------------------------------------------------------------------- S-496 0 0.48 12.7 ---------------------------------------------------------------------------------------------- Emmett O'Connell, Chairman of GWM said, "Through the entire regime of testing and sampling over the past three years, the potential and extension of the complex mineralization recorded has broken to the upside. The next step in defining the structure and depth of the mineralization will be to carry out a geo-physical survey as a prelude to a multi-core hole drilling campaign," he concluded. The latest results should be read in conjunction with tests, including bulk bottle roll leaching tests, released in 2007, 2008 and 2009. THE DIRECTORS OF THE ISSUER ACCEPT RESPONSIBILITY FOR THE CONTENTS OF THIS ANNOUNCEMENT. -------ENDS------ CONTACT DETAILS: Great Western Mining Corporation plc. Emmett O'Connell, Chairman. Tel: +353 51 565844 Fax: +353 51 565 884 Email: emmett@iol.ie Liam McGrattan, Director. Tel: 087 274 5427 Melvyn Quiller, U.K. Director. Tel: 0771 289 9588 SVS Securities Plc - PLUS Corporate Adviser. Tel: 020 7638 5600 Peter Ward / Alexander Brearley. SVS Securities Plc - Broker. Tel: 020 7638 5600 Ian Callaway / Alexander Mattey. ABOUT GREAT WESTERN MINING CORPORATION PLC. 1. GWM is an Irish exploration company with rights over approximately 34 square kilometres of mineral claims in Nevada. U.S.A. 2. GWM's shares are admitted to trading on PLUS-quoted in London, trading symbol GWMO. 3. Website: www.greatwesternmining.com Great Western Mining Corporation plc
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