Derry, Michener, Booth & Wahl Consultants Ltd. Page 6822.0 SIGNATURE PAGEThis report titled “<strong>Technical</strong> <strong>Report</strong> and Mineral Resource Estimate on the <strong>San</strong> <strong>Antonio</strong>Gold <strong>Project</strong>, <strong>Baja</strong> California Sur, Mexico”, with an effective date of December 31, <strong>2007</strong>,prepared for Pediment Exploration Limited, and dated June 30, 2008 was prepared by thefollowing two authors:“Ian S. Thompson” Date: June 30, 2008Ian S. Thompson, P.Eng.President,Derry, Michener, Booth and Wahl Limited“Dave Laudrum” Date: June 30, 2008Dave Laudrum, P. Geo.Senior GeologistAshloo Consultants Ltd.
Derry, Michener, Booth & Wahl Consultants Ltd. Page 6923.0 AUTHORS’ CERTIFICATESCertificate of Qualifications for Ian S. ThompsonAs one of the two authors of this report entitled “<strong>Technical</strong> <strong>Report</strong> and Mineral ResourceEstimate on the <strong>San</strong> <strong>Antonio</strong> Gold <strong>Project</strong>, <strong>Baja</strong> California Sur, Mexico, for PedimentExploration Limited”, as at December 31, <strong>2007</strong>, and dated June 30, 2008, I, Ian S.Thompson, do hereby certify that:1. I am the President ofDerry, Michener, Booth & Wahl Consultants Ltd.2338 Marine DriveWest Vancouver, BC, CanadaV7V 1K82. I graduated with a degree in Honours Geological Sciences from the University ofToronto in 1959.3. I am and have been a registered Professional Engineer with the Association ofProfessional Engineers and Geoscientists of British Columbia since 1971.As well, Iam a member in good standing of other technical associations and societies including,Life Member, Society of Economic Geologists.Retired Fellow, Association of Applied GeochemistsLife Member, Canadian Institute of Mining and Metallurgy.Life Member, Prospectors and Developers Association of Canada.Life Member, Association for Mineral Exploration BC.4. I have practiced my profession continually since 1959.5. I am responsible for Sections 1 through 16 and 18, 19 and 20 of the <strong>Technical</strong> <strong>Report</strong>as well as for the preparation of the <strong>Technical</strong> <strong>Report</strong>. I visited the <strong>San</strong> <strong>Antonio</strong>property and the offices of Pediment’s wholly –owned Mexican subsidiary, Cia.Minera Pitalla, S.A. de C.V. in Hermosillo, during the period December 12-17, <strong>2007</strong>.6. I have read National Instrument <strong>43</strong>-<strong>101</strong> and, by reason of education,experience and professional registration, I fulfill the requirements of aQualified Person as defined in NI <strong>43</strong>-<strong>101</strong>. This technical report has beenprepared in compliance with NI <strong>43</strong>-<strong>101</strong>.7. I have had no prior involvement with the mineral property in question.8. As of the date of this certificate, to the best of my knowledge, information and belief,the technical report contains all scientific and technical information that is required tobe disclosed to make the technical report not misleading.
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