Chariot Resources Limited MARCONA COPPER PROPERTY MINA JUSTA PROJECT Definitive Feasibility Study Technical Report NI 43-101 June 2009 Mina Justa Copper Project Definitive Feasibility Study NI 43-101 Technical Report Important notice This Mina Justa Technical Report (Technical Report) has been prepared for Marcobre SAC, Chariot Resources Limited and KLS Limited (Marcobre, Chariot and KLS) by GRD Minproc Limited (GRD Minproc), based on assumptions and upon information and data supplied by others, in each case, as identified in the document. The Technical Report is to be read in the context of the methodology, procedures and techniques used, GRD Minproc's assumptions, and the circumstances and constraints under which the Report was written. The Technical Report is to be read as a whole, and sections or parts thereof should therefore not be read or relied upon out of context. GRD Minproc has, in preparing the Technical Report, followed methodology and procedures, and exercised due care consistent with the intended level of accuracy, using its professional judgment and reasonable care. However, no warranty should be implied as to the accuracy of estimates or other values and all estimates and other values are only valid as at the date of the Technical Report and will vary thereafter. Parts of the Technical Report have been prepared or arranged by parties other than GRD Minproc, as detailed in the document. GRD Minproc is not in a position to, and does not, verify the accuracy or completeness of, or adopt as its own, the information and data supplied by other Qualified Persons and other experts, if any, identified in the Technical Report and disclaims all liability, damages or loss resulting from errors, omissions or other defects in the information and data supplied by other Qualified Persons and experts. However, the contents of those parts have been generally reviewed by GRD Minproc for inclusion into the Technical Report, but they have not been fully audited or sought to be verified by GRD Minproc. This important notice must accompany every copy of this Report, which is an integral document and must be read in its entirety. Marcona DFS 43-101 Rev1 (FINAL).doc Page i Mina Justa Copper Project Definitive Feasibility Study NI 43-101 Technical Report Title Page Project Name: Mina Justa Copper Project Title: Definitive Feasibility Study Technical Report Location: Province of Nazca, Peru Effective Dates: Effective Date of Technical Report: 8 June 2009 Effective Date of Mineral Reserves: 8 June 2009 Effective Date of Mineral Resources: 8 June 2009 Qualified Persons: • David D. (Dan) Greig, B.Sc, M.A.I.G. (1684-1722), employed by GRD Minproc Limited as Principal Geologist, was responsible for overall preparation of the report. • Warwick Board, B.Sc (Hons.), M.Sc., Ph.D. Geology, P.Geo. (#31256), P.Geol. (#96031) Aus.I.M.M. (#212259), Pri.Sci.Nat. (#400009/03), employed by Snowden Mining Industry Consultants Inc. as Principal Consultant in the Resource Division, was responsible for the preparation of Sections 14 (Data Verification) and 17 (Mineral Resources), and for supervision of the preparation of Sections 7 through 13, and 15 of this report. • Ross Oliver, B.Eng (Mining), Aus.I.M.M. 105137, employed by GRD Minproc Limited as Manager Mining & Geology, was responsible for the preparation of the whole or parts of sections 1 and 18.1, on Mineral Reserve and Mining. • Adam Johnston, B.Eng (Extractive Metallurgy), employed as Chief Metallurgist by Transmin Metallurgical Consultants, was responsible for supervision of Metallurgical Testwork and interpretation of testwork results as reported in Section 16. • Joe Schlitt, B.SC. (Met. Eng.), Ph.D., Qualified Professional member of the Mining and Metallurgical Society of America No. 01003QP and a Registered Professional Metallurgical Engineer (Texas No. 53603, President of Hydrometal, Inc., employed as a Metallurgical Consultant on behalf of GRD Minproc Limited, was responsible for Metallurgical Testwork and flowsheet design for the Mina Justa Project Oxide circuit (parts of Section 16 and Section 18). • Dean David, M.Aus.I.M.M. (102351) Process Consultant for GRD Minproc Limited, was responsible for Mineral Processing and Metallurgical Testwork of Sulphide ores (Section 16.2), Sulphide plant design (Section 18.3) and for Plant Operating Costs (Section 18.13). • Daniel Y. Yang, Senior Geotechnical Engineer, M.Eng., P.Eng. 28936, employed by Knight Piésold Ltd. was responsible for geotechnical studies, analysis and conclusions contained in Section 18 (specifically in 18.1.3, 18.2 and 18.7.1), relating to pit slope design criteria, waste dump design, geotechnical site investigations and sourcing of construction materials. Marcona DFS 43-101 Rev1 (FINAL).doc Page ii Mina Justa Copper Project Definitive Feasibility Study NI 43-101 Technical Report • Thomas F. Kerr, M.Sc., President of Knight Piésold and Co. USA, Registered Professional Engineer (Civil and Geotechnical), P.Eng., in British Columbia (#14906) and Ontario (#90407230) and P.E. in California (#C49260) and Alaska (#10969), was responsible for geotechnical matters related to the design and costing for the Tailings Storage Facility in Section 18.7.2. • Branislav Grbovic, B.Sc, M.Sc, Mech Engineer, M.Aus.I.M.M. (302515), Senior Project & Design Manager, GRD Minproc Limited, was responsible for engineering aspects of the Project as contained in Section 18. • Anthony Sanford, Manager of Environmental Services by Vector Peru, was responsible for environmental aspects described in Section 15 Other Expert contributors: • John D. Kapusta, P.Geo, Marcobre’s Vice-President Exploration and Geological Services is the Qualified Person responsible for Marcobre’s exploration, drilling, sampling and data quality activities as described in Sections 7 to 13, and for Marcobre’s geological modelling (Section 17). • Klaus Meder, Dr. rer. nat., employed by Andes Resources Compañía Minera SAC, a 100% owned Peruvian subsidiary of Chariot Resources as Senior Geologist. Klaus Meder provided the electronic database information, assisted the lithological and grade shell model interpretation and was responsible for inputs for geological information as described in sections 6 to 15 and 17. • David Brownrigg, B.Sc., B.Eng. (Mining), P.Eng. (#100051618) employed by Andes Resources Compañía Minera S.A.C, a 100% owned Peruvian subsidiary of Chariot Resources as General Manager and General Manager of Marcobre. In addition, a qualified person (QP) as defined by the guidelines within NI43-101. David Brownrigg was responsible for inputs for in-country information regarding tenement holdings, project logistics such as transport, shipping and manning, etc. • Brent Cochrane, financial consultant to Marcobre, was responsible for the preparation of the financial model. • Sean McCoy, employed by GRD Minproc as Senior Estimator, was responsible for preparation of the capital cost estimate reported in Section 18. • Olimpio Angeles Girón employed by Knight Piésold Consultores S.A. as Senior Geotechnical Geologist was responsible for the geotechnical site investigation program reported in Section 18.2. • Abel Ordóñez Huamán employed by Knight Piésold Consultores S.A. was responsible for the seismicity report in section 18.2.7. • Kerry Lahti employed by Knight Piésold and Co. was responsible for the Climatological Study and overall site water balance contained in the section 18.5.1 • Victor Lishnevsky employed by Knight Piésold and Co., was responsible for the overall site water balance contained in the section 18.5.1 • Cynthia Parnow employed by Knight Piésold and Co. was responsible for the environmental waste characterization report. • Robinson Ucanan, employed by GMI, was responsible for engineering aspects and estimates for Infrastructural parts of the project as contained in Section 18. Marcona DFS 43-101 Rev1 (FINAL).doc Page iii Mina Justa Copper Project Definitive Feasibility Study NI 43-101 Technical Report Table of Contents Important notice ............................................................................................................ i 1. SUMMARY................................................................................................................. 1 1.1 INTRODUCTION ..............................................................................................................................1 1.2 GEOLOGY AND MINERAL RESOURCES.......................................................................................2 1.2.1 Geological setting..............................................................................................................2 1.2.2 Mineralisation and alteration..............................................................................................3 1.2.3 Exploration ........................................................................................................................4 1.2.4 Logging, sampling, sample preparation and analysis ........................................................4 1.2.5 Data verification.................................................................................................................6 1.2.6 Mineral resource estimation...............................................................................................7 1.2.7 Block model generation .....................................................................................................7 1.2.8 Comparison with previous estimates .................................................................................8 1.2.9