Segovia, an old mining district with high exploration potential - PowerPoint PPT Presentation

Segovia, an old mining district with high exploration potential Colombia Gold Symposium Medellin, November 15, 2016 Alessandro Cecchi Vice President, Exploration 1

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Leading Colombian high ‐ grade underground gold producer. Very attractive entry point for common shares; undervalued versus peers. • Gold production increased 18.5% to 117,000 ounces in 2015. projecting 144,000 ‐ 150,000 ozs in 2016…122,000 ozs through October. • AISC (full year average) below US$900/ oz for 2015. projecting < US$850/oz for 2016….$832/oz for 9 months YTD 2016. • Upside in resource expansion and exploration assets. Canadian ‐ listed (TSX: GCM) producer with offices in Toronto/Medellin. Currently the largest underground gold and silver producer in Colombia. Advancing a project to expand and mechanize its high ‐ grade gold and silver mines at its Segovia Operations (~85% of total production). The Marmato Project , one of the Top ‐ 20 largest undeveloped global gold deposits, provides significant optionality to gold and silver prices with current resources in excess of 14M ozs of gold and almost 90M ozs of silver. Deep mineralization holds potential to add resources. The Zancudo Project , a former high grade producer, provides additional exploration upside. Successfully completed senior debt restructuring in January 2016; launched NCIBs in July 2016 to repurchase and cancel senior debt. 3

PROPERTY LOCATION Antioquia Dept. Segovia – Remedios Mining District Mines currently operated by GCM: • Providencia • El Silencio • Sandra K 4

MINING RIGHTS LOCATION The Carla Project comprises of 16 mining Mining Title RPP 140 straddles the historical Segovia ‐ Remedios Mining District. titles covering about 6,000 Ha. Included in the project is Title 7367 on which the Carla The title covers a total area of 2,871 Ha that was granted to FGM in perpetuity. Mine is located. 5

HISTORICAL PRODUCTION MINING FROM LATE XVI CENTURY GOLD PRODUCTION BY FGM Year Tonnes Gold Ounces Au grade (g/t) Silver Ounces 1869 ‐ 1898 141,633 1899 ‐ 1954 1,869,991 1,810,725 1957 ‐ 2010 (Q1) 8,555,759 2,675,782 9.74 2,936,530 10,425,750 4,628,140 2,936,530 SEGOVIA OPERATIONS Source: FGM. Data is recovered ounces. GOLD PRODUCTION BY GCM A HIGH ‐ GRADE Year Tonnes Gold Ounces Au grade (g/t) Silver Ounces WORLD CLASS DEPOSIT 2010 149,214 50,313 11.38 2011 188,527 68,704 12.56 2012 260,420 79,178 11.02 2013 327,414 80,226 8.59 2014 237,738 74,507 10.64 2015 211,049 92,894 14.32 2016 1 209,295 91,435 13.74 1,583,657 537,257 11.48 12,009,407 5,165,397 9.97 6 1 First nine months

REGIONAL GEOLOGY The Segovia – Remedios Mining District is hosted entirely by the Segovia Batholith of Upper Jurassic age of diorite to granodiorite composition. 10 km 7

VEIN SYSTEM POTENTIAL 3 main mines 27 main known veins 8

STRUCTURAL CONTROL Gold mineralization The syn ‐ mineralization veins occurs in narrow fit in a single deformation quartz ‐ sulphide event of N ‐ S to NNE ‐ SSW veins hosted by a compression that generates potassic, sericite NNW dextral transpressional and intermediate shearing argillic altered wall ‐ rock. 9

EXPLORATION HISTORY  HISTORICAL EXPLORATION  Historical exploration data by FGM is limited to diamond drilling for resource development at the operating mines, underground mapping and sampling.  The historical underground channel sampling database made available to GCM consists of more than 75,000 samples and is understood to incorporate data from the past 30 years.  GCM EXPLORATION (2010 to date)  The Company has implemented a surface geological mapping program of the property at 1:2,000 scale;  The Company exploration staff finalized a underground channel sampling program at Providencia, Sandra K and Carla mines, in an attempt to verify historical underground data and increase the size of higher confidence quality control checked samples in the exploration database.  Exploration diamond drilling to explore new targets and test extensions of known veins. 10

DRILLING PROGRAMS DRILLING PROGRAMS Historical Drilling by FGM Total Number (m) holes Subtotal 60,452 574 Sandra K 2010 ‐ 2013 Drilling by GCM Total Number (m) holes Providencia Mine 20,927 50 Providencia Sandra K/Chumeca Mine 8,992 40 LAVS Las Aves Vein System 27,032 89 Subtota l 56,951 179 Grand total 117,403 753 Carla 10,084 54 11

MINERAL RESOURCE ESTIMATE Statement for the Segovia and Carla Projects August 1 st , 2013 by SRK Consulting (UK) Limited GOLD M&I Inferred Tonnes Grade Ounces Tonnes Grade Ounces at 3 g/t Au cut ‐ off / using a gold price of US$ 1,400 oz. (kt) (g/t) (koz) (kt) (g/t) (koz) LONG TERM RESOURCES (LTR) Providencia 447 20.2 291 88 20.1 57 Sandra K 263 10.9 92 422 8.2 111 Carla 154 9.7 48 178 9.3 53 Las Verticales 771 7.1 176 El Silencio 681 11.6 254 Total Long Term Mineral Resource 864 15.5 431 2,140 9.5 651 PILLARS Providencia Pillars 616 19.2 379 Sandra K Pillars 77 12.3 31 14 14.4 6 El Silencio Pillars 1,309 9.7 406 Total Pillars Mineral Resources 77 12.3 31 1,939 12.7 791 Each of the mining areas have been sub ‐ divided into Pillar areas (“Pillars”), which represent the areas within the current mining development, and Long ‐ Term Mineral Resources (“LTR”), which lies along strike or down dip of the current mining development. 12

MINERAL RESOURCE ESTIMATE Very close to the average grade of the ore mined by GCM from 2010 to 2015 13

EXPLORATION POTENTIAL Mines in operation Providencia mine LAVS 14

EXPLORATION POTENTIAL Las Aves Vein System La Gina La Vega L4 Grades from the small mining activity corroborates the block model 15

EXPLORATION POTENTIAL Mines in operation Fault K El Silencio mine 16

EXPLORATION POTENTIAL El Silencio north fault block 17

EXPLORATION POTENTIAL Mines in operation Sandra K mine step ‐ out drilling infill drilling 18

THANKS 19