Technical Report Mineral Resource and Mineral Reserve Update for the Youga Gold Mine Burkina Faso West Africa Latitude 11°10’N, Longitude 00°18’W Endeavour Mining Corporation Suite 3123, Three Bentall Centre 595 Burrard Street, PO Box 49139 Vancouver, B.C. Canada V7X 1J1 Effective date: December 31, 2014 Report date: March 26, 2015 Qualified Persons: K. Kirk Woodman, P.Geo. Kevin Harris, CPG For personal use only Adrian de Freitas, C.Eng. Technical Report Mineral Resource and Mineral Reserve Update for the Youga Gold Mine Burkina Faso, West Africa TABLE OF CONTENTS Page 1.0 SUMMARY ....................................................................................................................... 2 1.1 OWNERSHIP ............................................................................................................................. 2 1.2 GEOLOGY ................................................................................................................................. 2 1.3 EXPLORATION ........................................................................................................................... 3 1.4 DATA ....................................................................................................................................... 3 1.5 MINERAL RESOURCES ................................................................................................................. 3 1.6 MINERAL RESERVES ................................................................................................................... 4 1.7 MINING ................................................................................................................................... 5 1.8 METALLURGY AND PROCESS PLANT .............................................................................................. 5 1.9 CAPITAL AND OPERATING COSTS .................................................................................................. 6 1.10 CONCLUSIONS ........................................................................................................................... 6 1.11 RECOMMENDATIONS.................................................................................................................. 6 2.0 INTRODUCTION AND TERMS OF REFERENCE ..................................................................... 7 3.0 RELIANCE ON OTHER EXPERTS .......................................................................................... 9 4.0 PROPERTY DESCRIPTION AND LOCATION ........................................................................ 10 5.0 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY ............................................................................................................. 15 6.0 HISTORY ........................................................................................................................ 18 7.0 GEOLOGICAL SETTING AND MINERALIZATION ................................................................. 21 7.1 REGIONAL GEOLOGY ................................................................................................................ 21 7.2 LOCAL GEOLOGY...................................................................................................................... 23 7.3 PROPERTY GEOLOGY ................................................................................................................ 24 7.3.1 Youga Geology ............................................................................................................ 24 7.3.2 Ouaré Geology ............................................................................................................ 28 8.0 DEPOSIT TYPES .............................................................................................................. 30 9.0 EXPLORATION ................................................................................................................ 31 9.1 YOUGA EXPLORATION .............................................................................................................. 32 9.2 OUARÉ EXPLORATION ............................................................................................................... 34 10.0 DRILLING ....................................................................................................................... 36 10.1 COLLAR SURVEYS ..................................................................................................................... 36 10.2 DOWNHOLE SURVEYS ............................................................................................................... 36 For personal use only 10.3 LOGGING ................................................................................................................................ 36 10.4 DIAMOND DRILL CORE ............................................................................................................. 36 10.5 YOUGA DRILLING ..................................................................................................................... 37 10.5.1 Sample Recovery ........................................................................................................ 38 10.5.2 Drilling Results ............................................................................................................ 38 i Technical Report Mineral Resource and Mineral Reserve Update for the Youga Gold Mine Burkina Faso, West Africa 10.5.3 Drilling Orientation ..................................................................................................... 38 10.5.4 Youga Deposits ........................................................................................................... 39 10.6 OUARÉ DRILLING ..................................................................................................................... 47 10.6.1 Sample Recovery ........................................................................................................ 47 10.6.2 Drilling Results ............................................................................................................ 48 10.6.3 Drilling Orientation ..................................................................................................... 48 10.6.4 Ouaré Deposits ........................................................................................................... 48 11.0 SAMPLE PREPARATION, ANALYSES AND SECURITY .......................................................... 50 11.1 SAMPLING METHODS ............................................................................................................... 50 11.1.1 Trench Sampling ......................................................................................................... 50 11.1.2 Reverse Circulation Drill Sampling ............................................................................. 50 11.1.3 Diamond Drill Sampling .............................................................................................. 50 11.2 SAMPLE QUALITY ..................................................................................................................... 51 11.3 SAMPLE PREPARATION AND ANALYSES ........................................................................................ 51 11.4 QUALITY CONTROL AND ASSURANCE........................................................................................... 52 12.0 DATA VERIFICATION ....................................................................................................... 55 12.1 YOUGA DATA VERIFICATION ...................................................................................................... 55 12.2 OUARÉ DATA VERIFICATION ...................................................................................................... 57 13.0 MINERAL PROCESSING AND METALLURGICAL TESTING ................................................... 58 13.1 BULK DENSITY ......................................................................................................................... 58 13.2 METALLURGICAL TESTING ......................................................................................................... 59 13.2.1 Youga Metallurgical Testing ....................................................................................... 59 13.2.2 Youga Satellite and Ouaré Metallurgical Testing ....................................................... 63 13.3 MINERAL PROCESSING.............................................................................................................. 70 14.0 MINERAL RESOURCE ESTIMATES .................................................................................... 71 14.1 YOUGA MINERAL RESOURCE ESTIMATES ..................................................................................... 71 14.1.1 Data ................................................................................................................... 71 14.1.2 Topography and Weathering Surfaces ....................................................................... 71 14.1.3 Geological Modelling .................................................................................................. 71 14.1.4 Assay Compositing ..................................................................................................... 72 14.1.5 Statistical Analysis ...................................................................................................... 72 14.1.6 Grade Capping ...........................................................................................................