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NI 43-101 TECHNICAL REPORT on the YAURICOCHA MINE Yauyos Province, Peru

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NI 43-101 TECHNICAL REPORT on the YAURICOCHA MINE Yauyos Province, Peru NI 43-101 TECHNICAL REPORT ON THE YAURICOCHA MINE Yauyos Province, Peru PREPARED FOR Dia Bras Exploration Inc. 333 Bay Street Suite 2900 Bay Adelaide Center Toronto, Ontario M5H 2T4 Effective Date October 10, 2012 Report Date October 19, 2012 Prepared by Donald E. Hulse, P.E., RM-SME Christopher E. Kaye, FAusIMM Anthony Hammond, RM-SME Patrick F. Daniels, RM-SME Dia Bras Exploration, Inc. Certificate of Author Forms Yauricocha Mine NI 43-101 Technical Report DONALD E. HULSE, P.E. Principal Mining Engineer Gustavson Associates, LLC 274 Union Boulevard, Suite 450 Lakewood, Colorado 80228 Telephone: 720-407-4062 Facsimile: 720-407-4067 Email: [email protected] CERTIFICATE of AUTHOR I, Donald E. Hulse do hereby certify that: 1. I am currently employed as Vice President and Principal Mining Engineer by Gustavson Associates, LLC at: 274 Union Boulevard Suite 450 Lakewood, Colorado 80228 2. I am a graduate of the Colorado School of Mines with a Bachelor of Science in Mining Engineering (1982), and have practiced my profession continuously since 1983. 3. I am a registered Professional Engineer in the State of Colorado (35269). I am also a Registered Member of the Society of Mining, Metallurgy and Exploration (1533190RM). 4. I have worked as a mining engineer for a total of 29 years since my graduation from university; as an employee of a major mining company, a major engineering company, and as a consulting engineer. I have performed resource estimation and mine planning on over 30 gold deposits for over 10 mining companies in three countries working as a consultant as well as an engineer or engineering manager for the projects 5. I have read the definition of “qualified person” set out in National Instrument 43-101 (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101. 6. I am responsible for Sections 1 through 12, 14, 17.1.5, 17.24, 17.23, 20, and 23 through 27 of the technical report entitled “NI 43-101 Technical Report on the Yauricocha Mine, Yauyos Province, Peru”, dated October 19, 2012, with an effective date of October 10, 2012, (the “Technical Report”), and am also responsible for the overall organization and content of the document. I visited the project site April 10, 2012 for three days as well as March 21-24, 2011. 7. I prepared a previous report on the Yauricocha property, “NI 43-101 Technical Report on the Yauricocha Project, Yauyos Peru” dated May 25, 2011. 8. I am independent of the issuer applying all of the tests in Section 1.5 of National Instrument 43-101. October 19, 2012 i Dia Bras Exploration, Inc. Certificate of Author Forms Yauricocha Mine NI 43-101 Technical Report 9. I have read National Instrument 43-101 and Form 43-101, and the Technical Report has been prepared in compliance with that instrument and form. 10. I consent to the filing of the Technical Report with any stock exchange and other regulatory authority and any publication by them for regulatory purposes, including electronic publication in the public company files on their websites accessible by the public, of the Technical Report. 11. 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 to be disclosed to make the Technical Report not misleading. Dated this 19th day of October, 2012 Signature of Qualified Person Donald E. Hulse Printed Name of Qualified Person October 19, 2012 ii Dia Bras Exploration, Inc. Certificate of Author Forms Yauricocha Mine NI 43-101 Technical Report Christopher E. Kaye, MAusIMM Principal Process Engineer Mine and Quarry Engineering Services, Inc. (MQes) 1730 S. Amphlett Boulevard, Suite 200 San Mateo, California 94402 CERTIFICATE of QUALIFIED PERSON I, Christopher Edward Kaye do hereby certify that: 1. I am currently employed as Principal Process Engineer by Mine and Quarry Engineering Services, Inc. (MQes) at: 1730 S. Amphlett Boulevard, Suite 200 San Mateo, California 94402 2. I am a graduate of the University of Queensland, Australia with a B. Eng. in Chemical Engineering in 1984, and have practiced my profession continuously since 1985. 3. I am a Fellow of the Australasian Institute of Mining and Metallurgy in Australia. 4. I have worked as a process engineer in the minerals industry for over 25 years. I have been directly involved in the mining, exploration and evaluation of mineral properties internationally for precious and base metals. 5. I have read the definition of “qualified person” set out in National Instrument 43-101 (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101. 6. I am responsible for Sections 13 and 17.1, 17.1.1, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.2.3, 17.1.3, 17.1.3.1, 17.1.3.2, 17.1.4, 17.2, 17.2.1, 17.2.2, 17.2.3, 17.4 (metallurgy portion) and 17.5(metallurgy portion) of the technical report entitled “NI 43-101 Technical Report on the Yauricocha Mine, Yauyos Province, Peru”, dated October 19, 2012, with an effective date of October 10, 2012, (the “Technical Report”), I visited the project site March 22-24, 2011. 7. MQes was retained by Gustavson Associates LLC on behalf of Dia Bras Exploration Inc. to prepare relevant sections of a Technical Report on the Yauricocha Property, Yauyos Province, Peru in accordance with National Instrument 43-101. The report is based on our review of project files and information provided by Dia Bras Exploration Inc., Sociedad Minera Corona S.A. and discussions with company personnel. I prepared a previous report on the Yauricocha property, “NI 43-101 Technical Report on the Yauricocha Project, Yauyos Peru” dated May 25, 2011. 8. I am independent of the issuer applying all of the tests in Section 1.5 of National Instrument 43-101. October 19, 2012 iii Dia Bras Exploration, Inc. Certificate of Author Forms Yauricocha Mine NI 43-101 Technical Report 9. I have read National Instrument 43-101 and Form 43-101, and the Technical Report has been prepared in compliance with that instrument and form. 10. 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 to be disclosed to make the Technical Report not misleading. Dated this 19th day of October, 2012 Signature of Qualified Person Christopher E. Kaye Printed Name of Qualified Person October 19, 2012 iv Dia Bras Exploration, Inc. Certificate of Author Forms Yauricocha Mine NI 43-101 Technical Report Anthony D. Hammond Associate Mining Engineer Principal Mining Engineer Gustavson Associates, LLC 274 Union Boulevard, Suite 450 Lakewood, Colorado 80228 Telephone: 720-407-4062 Facsimile: 720-407-4067 CERTIFICATE of AUTHOR I, Anthony D. Hammond do hereby certify that: 1. I am currently employed as Associate Mining Engineer by Gustavson Associates, LLC at: 274 Union Boulevard Suite 450 Lakewood, Colorado 80228 2. I am a graduate of the South Dakota School of Mines and Technology with a Master of Science in Mining Engineering (1987), and have practiced my profession continuously since 1982. 3. I am a Registered Member of the Society of Mining, Metallurgy and Exploration (1307620). 4. I have worked as a mining engineer in the minerals industry for over 27 years. I have been directly involved in the mining, exploration and evaluation of mineral properties internationally for precious and base metals. 5. I have read the definition of “qualified person” set out in National Instrument 43-101 (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101. 6. I am responsible for Sections 15, 16 and portions of Sections 21.4 of the technical report entitled “NI 43-101 Technical Report on the Yauricocha Mine, Yauyos Province, Peru”, dated October 19, 2012, with an effective date of October 10, 2012, (the “Technical Report”), and am also responsible for the overall organization and content of the document. 7. I have not had prior involvement with the properties that are the subject of the Technical Report. 8. I am independent of the issuer applying all of the tests in Section 1.5 of National Instrument 43-101. October 19, 2012 v Dia Bras Exploration, Inc. Certificate of Author Forms Yauricocha Mine NI 43-101 Technical Report 9. I have read National Instrument 43-101 and Form 43-101, and the Technical Report has been prepared in compliance with that instrument and form. 10. I consent to the filing of the Technical Report with any stock exchange and other regulatory authority and any publication by them for regulatory purposes, including electronic publication in the public company files on their websites accessible by the public, of the Technical Report. 11. 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 to be disclosed to make the Technical Report not misleading. Dated this 19th day of October, 2012 Signature of Qualified Person Anthony D.
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