Advanced Technical Report, Mana Property, Burkina Faso Reserve and Resource Update as at June 30, 2013 Effective Date: October 4, 2013 Prepared by: Michel Crevier, MScA, P.Geo François Thibert, MSc, P. Geo Richard Roy, P. Geo Patrick Moryoussef, P. Eng Sylvain Duchesne, P. Eng Advanced Technical Report, Mana Property, Burkina Faso, Reserve and Resource Update Page ii Table of contents Table of contents ............................................................................................................................. ii List of tables ..................................................................................................................................... v List of figures ................................................................................................................................... vi 1- Executive Summary .................................................................................................................... 1 2- Introduction ................................................................................................................................ 9 2.1 General .................................................................................................................................. 9 2.2 Terms of Reference ............................................................................................................... 9 2.3 Source of Information.......................................................................................................... 10 2.4 Units and Currency .............................................................................................................. 10 3- Reliance on Other Experts ........................................................................................................ 11 4- Property Description and Location ........................................................................................... 13 5- Accessibility, Climate, Local Resources, Infrastructure and Physiography .............................. 17 6- History ....................................................................................................................................... 18 7- Geological Setting and Mineralization ...................................................................................... 19 8- Deposit Types ............................................................................................................................ 21 8.1 Mineralization ...................................................................................................................... 22 8.1.1 Wona ............................................................................................................................. 22 8.1.2 Nyafé, Fofina and Fobiri ................................................................................................ 24 8.1.3 Yaho ............................................................................................................................... 24 8.1.4 Siou ................................................................................................................................ 25 9- Exploration ................................................................................................................................ 27 10- Drilling ..................................................................................................................................... 28 11- Sample Preparation, Analyses and Security ........................................................................... 29 12- Data Verification ..................................................................................................................... 30 12.1 Standards ........................................................................................................................... 30 12.2 Duplicates .......................................................................................................................... 33 12.3 Blanks ................................................................................................................................. 36 12.4 Laboratory Cross Check ..................................................................................................... 36 12.5 Conclusions ........................................................................................................................ 38 13- Mineral Processing and Metallurgical Testing ........................................................................ 39 Advanced Technical Report, Mana Property, Burkina Faso, Reserve and Resource Update Page iii 13.1 Current Mines .................................................................................................................... 39 13.2 South Sector (Yaho, Fofina, Fobiri) .................................................................................... 39 13.3 Siou Zone ........................................................................................................................... 41 14- Mineral Resource Estimates ................................................................................................... 43 14.1 Drill Hole and Sample Database ........................................................................................ 43 14.1.1 Wona-Kona Database .................................................................................................. 43 14.1.2 Nyafé and Filon67 Database ....................................................................................... 45 14.1.3 Fofina Database ........................................................................................................... 46 14.1.4 Fobiri Database ........................................................................................................... 47 14.1.5 Yaho Database ............................................................................................................. 48 14.1.6 Siou Database .............................................................................................................. 49 14.1.7 Maoula Database ........................................................................................................ 51 14.2 Geological modelling ......................................................................................................... 52 14.2.1 Wona-Kona Modelling ................................................................................................ 52 14.2.2 Nyafé Modelling .......................................................................................................... 59 14.2.3 Fofina Modelling ......................................................................................................... 59 14.2.4 Yaho Modelling ........................................................................................................... 63 14.2.5 Siou Modelling ............................................................................................................. 65 14.2.6 Maoula Modelling ....................................................................................................... 68 14.2.7 Filon67 and Fobiri Modelling ...................................................................................... 71 14.3 Block Model and Density Distribution ............................................................................... 71 14.4 Samples in Mineral Zones and Capping ............................................................................. 75 14.5 Compositing and geostatistical analysis ............................................................................ 80 14.6 Block grade interpolation and validation .......................................................................... 94 14.7 Resource classification..................................................................................................... 101 14.8 Mineral resource estimations .......................................................................................... 106 15- Mineral Reserve Estimates ................................................................................................... 118 16- Mining Methods ................................................................................................................... 127 16.1 Introduction ..................................................................................................................... 127 16.2 Pit Design Parameters ..................................................................................................... 128 17- Recovery Methods ................................................................................................................ 131 17.1 Introduction ..................................................................................................................... 131 17.2 Crushing ........................................................................................................................... 131 17.3 Grinding and Classification .............................................................................................. 131 17.4 Leach and Adsorption Circuit .......................................................................................... 132 17.5 Elution and Gold Room Operation .................................................................................. 133 17.5.1 Carbon Acid Wash ..................................................................................................... 133 17.5.2 Carbon stripping - Zadra Elution Circuit