Iamgold Corporation · TSX:IMG

Iamgold — Technical Presentation (November 2018)

58 slides from Iamgold's technical presentation, Nov 12, 2018

  1. Slide 1: Rosebel Gold Mine 2018 Analyst Tour

    Rosebel Gold Mine 2018 Analyst Tour November 12, 2018 l TSX: IMG l NYSE: IAG l

  2. Slide 2: Cautionary Statement

    Cautionary Statement All information included in this presentation whether in narrative or chart form, including any information as to the Company’s future financial or operating performance, and other statements that express management’s expectations or estimates of future performance, other than s

  3. Slide 3: Technical Information and Qualified Persons

    Technical Information and Qualified Persons The information contained herein may refer to the following previously published information. The information relating to these releases can be found on our website (www.iamgold.com): September 23, 2018 – Updated Reserve and Resource Estimate The mineral d

  4. Slide 4: Agenda

    Agenda 1. Safety Brief 2. Historical Overview 3. Vision & Strategy for the Future – The Rosebel Gold Mines Complex 4. RGM Today – An Overview of Production & Improvement Initiatives 5. Moving Forward – Locking-In Value • Saramacca Project 6. Exploring the Consolidated Land Package 7. RGM Landscape –

  5. Slide 5: Historical Overview

    Historical Overview

  6. Slide 6: Rosebel Gold Mines – A Brief Overview

    Rosebel Gold Mines – A Brief Overview  Began full production in 2004  Initial metrics:  LOM: 8 years, out to 2012  Reserves: 2,382koz  Today, 14 years later  Total production is 4,826koz (end of 2017)  Revised metrics:  LOM: 15 years, out to 2033  Reserves: 5,457koz1  Estimated Cumulative

  7. Slide 7: Years and Continuing to Replenish Reserves

    15 Years and Continuing to Replenish Reserves 12,000 1,500 10,000 1,250 8,000 1,000 5,457 Gold Price ($/Oz) 3,730 6,000 5,732 750 6,031 4,273 6,120 3,155 2,078 2,351 5,010 4,000 500 3,662 3,785 3,366 4,826 5,127 3,150 4,196 4,508 2,000 3,894 250 3,550 2,382 3,164 2,763 2,357 1,941 1,529 921 1,198 62

  8. Slide 8: Economic Value for the Republic of Suriname

    Economic Value for the Republic of Suriname $1.8 B $0.6 B $0.01 B $2.4 B $1.0 B $3.4 Billion 8

  9. Slide 9: Value Sharing with Surrounding Communities

    Value Sharing with Surrounding Communities School garden project Nieuw Lombe SSM environmental awareness SSM operation Roma East Medical aid Donation ESIA handover to District Scholarship contract signing Commissioners office Youth activity Nieuw Koffiekamp CRD Fair for internal Community walk about

  10. Slide 10: Contributing to Suriname’s Development

    Contributing to Suriname’s Development 2018 Highlights – Corporate Social Responsibility Supporting Country Capacity Building  Green Partnership Program on Sustainable Management of Natural Resources.  Medical Equipment Investments.  Graduate Studies Sponsorships: IAMGOLD donated a state-of-the-a

  11. Slide 11: Vision & Strategy – The Rosebel Gold Complex

    Vision & Strategy – The Rosebel Gold Complex

  12. Slide 12: Rosebel – Creating a Gold District

    Rosebel – Creating a Gold District Brokolonko Brokolonko Saramacca Trend +20km 12

  13. Slide 13: Creating a World Class Gold Complex

    Growth Strategy – Maximizing Short Cycle Capacity CREATING A WORLD CLASS GOLD COMPLEX 2020 – 2033 2019 Gold Complex 2018 Saramacca Expansion • Locking-In Value 2017 Reserve Base Start- Up by • Exploring the operationalizing Diversification consolidated RGM Re- resource gains • 51% reserve Land Packa

  14. Slide 14: Engineering Driven Transformation of Rosebel

    Engineering Driven Transformation of Rosebel  Continuous Mine Plan Optimization from 2014 to 2018: 2014 – major grade reconciliation audit. 2015 – systematic use of Reverse Circulation (RC) for grade control. 2016 – new advanced resource models developed using revised geostatistical techniques.

  15. Slide 15: RGM Today – A Quick Overview

    RGM Today – A Quick Overview

  16. Slide 16: Safety Performance 2018

    Safety Performance 2018 Leading KPI’s DART Severity Rate DART = 0.87 TRIR = 1.63 LTA free in Mar & Jun DART free in May 16

  17. Slide 17: 2018 YTD Operational Highlights

    2018 YTD Operational Highlights Q3 QTD Q3 Q3QTD YTD Q3 YTD 2018 2017 2018 2018 2017 2017 2018 Collective 2017 Labour Agreement (“CLA”) g statistics Mine operating statistics negotiation impacted mine Ore mined (kt) 3,324 3,991 11,601 3,324 11,245 3,991 production 11,601 11,245 in Q3. kt) Waste mine

  18. Slide 18: Mine Production Trend

    Mine Production Trend # IAMGOLD 18.U 16.6 16.0 [59] : : : 14.0 12.0 o = 100 2 c 2 8.0 5 o 3 6.0 ° = Qa o 4.0 £ 2 2.0 5 0.0 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q2 2018 Q3 2018 (9 Ore mined (kt) 3.6 3.7 3.9 3.8 4.3 4.0 3.3 ‘= Waste mined (kt) 12.3 12.0 119 116 12.3 12.0 11.6 Total material mined (kt) 15.9

  19. Slide 19: 2018 Improvement Initiatives

    2018 Improvement Initiatives  October 2018 delivered 195,616 expit tonnes per day.  Overall 23% improvement in expit production from baseline.  No increase in fleet. 19

  20. Slide 20: Performance Management Approach – Mine

    Performance Management Approach – Mine Real Time Near Real Time End of Shift/Day End of Week & Beyond Dynamic Short Interval Visual Management Operator Dispatching Control Scorecards Dispatch system Identify and correct Daily performance Individual automatically underperforming meetings at each leve

  21. Slide 21: Real Time – Dynamic Dispatch

    Real Time – Dynamic Dispatch  Allows a more continuous load&haul process, reducing idle time.  Selects optimal production circuits to assign trucks in real time.  Analyses multiple options for loading and dumping locations scenarios.  Provides Real time assignments based on current conditions. 

  22. Slide 22: Operator Scorecard & Targeted Training

    Operator Scorecard & Targeted Training  High level of variability in performance across all operators.  Allows to focus training requirements more specifically.  Training department has weekly meeting with GF to identify operators for in-seat training.  Focus on bottom 25% of operators. 22

  23. Slide 23: Mill Improvements – Open Circuit SAG

    Mill Improvements – Open Circuit SAG Open Circuit SAG:  Increase SAG hard rock capacity by: Decreasing high power draw constraint. Eliminating pebble production circuit constraint. Decreasing mill instability.  Benefits Hard Rock throughput increase.  Design and install 2019. Closed Circuit SA

  24. Slide 24: The Saramacca Project

    The Saramacca Project

  25. Slide 25: Continuing Transformation

    Continuing Transformation  Project development highlights Saramacca on schedule to start mining in H2 2019. Project Costs estimate (September 2018) confirms project economic metrics.  Additional 51% increase to Total Reserves in 20181 1.6 Moz increase to reserves, including 1 Moz from Saramacca

  26. Slide 26: Major Milestones

    Major Milestones Milestones Completed NI 43-101 R&R Start Disclosure Mining ESIA Submitted to ESIA Completed NIMOS Approval Scoping By Nimos study 2018 2019 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Start Camp Haul Road Construction Construction Complete Award Long Haul Trucks Haul Road Connects RGM to Saramacca Awar

  27. Slide 27: 2018 Highlights – Consolidated RGM Resources

    2018 Highlights – Consolidated RGM Resources 27

  28. Slide 28: 2018 Highlights – Resource Conversion at Saramacca

    2018 Highlights – Resource Conversion at Saramacca  Successfully converted inferred to indicated : 90% of indicated resources.  Comparison of latest MI results to maiden MII resource shows overall better grade. Resources Conversion 2500 100% 2000 80% 273 1500 60% 518 1000 40% 1763 500 1022 20% 0 0

  29. Slide 29: 2018 Highlights – Consolidated RGM Reserves

    2018 Highlights – Consolidated RGM Reserves 29

  30. Slide 30: 2018 Preliminary Mine Design

    2018 Preliminary Mine Design  Current layout showing:  infrastructure pad  settling ponds  waste dumps  mine road network 30

  31. Slide 31: Mill Feed by Material Type

    Mill Feed by Material Type Ss ITAMGOLD 14 2.0 1.8 12 1.6 10 1.4 = , 12 » E E = °o 2 10 9 26 & < 08 2 4 06 0.4 2 0.2 0 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 ee SOFT mmm TRAN mmm ROCK = ==—=GRADE 31

  32. Slide 32: LOM Gold Production

    IAMGOLD LOM Gold Production Gold Recovered (oz) 450,000 400,000 350,000 300,000 250,000 200,000 150,000 100,000 50,000 - 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 @@—9l0M2018-)—---- LOM2017 Head Grade (g/t) 32

  33. Slide 33: Recoveries vs. Rock-Type

    Recoveries vs. Rock-Type September 23, Scoping Study Material R&R Recoveries Recoveries Hard Laterite (Duricrust)1 - 95.2 % Soft Laterite 97 % 93.2 % Saprolite 97 % 91.0 % Transition 76 % 89.6 % Hard Rock 82 % 74.8 % Highlights:  Recovery optimization study in progress, completion planned Q1 2019.

  34. Slide 34: Trucking Fleet

    Trucking Fleet  Haulage between Saramacca and RGM mill will be carried out with a dedicated long haul fleet:  Haulmax 3900, 80t capacity  Initial Fleet: 8 units  Mine haulage will be carried out with:  Komatsu HD1500, 150t capacity1  Initial Fleet: 7 units 1 Change from NI 43-101 TR disclosure

  35. Slide 35: Haul Road and Infrastructure – Project Justification

    Haul Road and Infrastructure – Project Justification  Completion of road scheduled for July 2019.  The road will be a private double lane ore transportation road, sized for the Haulmax 3900.  Road is planned to connect Mayo to Saramacca in Q2 2019. Subgrade base, Bridges, Culverts, Overpasses. 

  36. Slide 36: Haul Road – Section and Highlights

    Haul Road – Section and Highlights Main criteria:  Total road length: 23 km  Quantity of bridges: 2  Total culvert length: 3200 m 36

  37. Slide 37: Haul Road – General Layout

    IAMGOLD Haul Road — General Layout 37 aA 1 Keanna

  38. Slide 38: Environmental & Social Impact Study (ESIA)

    Environmental & Social Impact Study (ESIA)  IAMGOLD issued ESIA to Nimos.  All 5 public disclosure meetings were held as planned from August 29 to September 3, 2018.  NIMOS ESIA Review Report received Oct 2. Responses were formulated by internal team. Re-submission on October 31, 2018.  NIMOS

  39. Slide 39: Key Next Steps

    Key Next Steps Activity Date Start mobilizing construction team on site November 2018 Complete infrastructure pad geotechnical investigation November 2018 Complete camp construction November 2018 Complete pit slope optimization study November 2018 Complete recovery optimization test work and study F

  40. Slide 40: Going Underground at Saramacca?

    Going Underground at Saramacca?  Preliminary assessment of underground potential on-going.  High level pit optimization shows significant reduction in SR.  Current capital disbursement and pit phasing structured for UG optionality. 40

  41. Slide 41: Longitudinal Section of North-West Shoot

    Longitudinal Section of North-West Shoot A Longitudinal Section B  Underground Potential :  2,500m DDH  Define 200x250x25m area  Targeting 5 g/t  North-West and South- East shoots Location A C • 200m L x 25m W • Currently 300m D in HR MII B • @ 5g/t Au D Continuous Mineralization? 100m 41

  42. Slide 42: Current Targets

    Current Targets C Cross-Section D Status as per the 9th of November 100m  First “underground potential” DDH:  Drilling started November 5th, 2018  138.5m drilled (as per the 9th of November) 42

  43. Slide 43: Exploring the Consolidated Land Package

    Exploring the Consolidated Land Package

  44. Slide 44: Continuing Transformation

    Continuing Transformation  Consolidation of the prospective land packages within 45km of the Rosebel mill continues. Sarafina property acquired in March 2014. Saramacca property acquired in August 2016. Exploration rights to Brokolonko secured in January 2018. Preliminary drill results released

  45. Slide 45: Rosebel Consolidated Land Package

    Rosebel Consolidated Land Package Rosebel pits Gold showing Concession Boundary Rosebel Mine Lease Brokolonko Concession Thunder Sarafina - Moeroekreek Mountain Concession Concession Headley’s Reef Concession ~ 25 kms Saramacca Concession Saramacca Deposit 45

  46. Slide 46: Exploring the Consolidated Land Package

    Exploring the Consolidated Land Package You are here drainages Gold-rich Rosebel 25km Some drill pads 46

  47. Slide 47: Exploration – 2018 Highlights

    Exploration – 2018 Highlights  HSS  Suriname Exploration achieved 5 years without a LTA on August 7th, 2018.  2018 Drilling Activities  Brokolonko – 45 DDH for 7,069m  Saramacca – Exploration - 27 DDH for 4,643m – Condemnation - 29 RCH for 3,726m  Sarafina (ongoing) – 31 DDH for 5,650m  Explo

  48. Slide 48: 2018 Exploration Targets

    2018 Exploration Targets  Develop new resources along the Saramacca Trend to consolidate the Rosebel Gold Mine Complex.  Expansion of the Saramacca resource footprint.  Evaluation and expansion of existing prospects.  Identify new gold prospects based on geology, geochemistry and geophysics. • 3

  49. Slide 49: Regional Geological Interpretation & Targeting

    Regional Geological Interpretation & Targeting Complex structural architecture along the Saramacca Trend Pompoekampoe structurally different Second trend wrapping around a potential Pompoekampoe intrusive Rosebel Southern Mine trend Saramacca and Ocelot associated with Puma Ocelot Lynx anomalous BLE

  50. Slide 50: Saramacca Deposit – Exploration Sequence

    Saramacca Deposit – Exploration Sequence 50

  51. Slide 51: Saramacca Trend – Northwest Expansion

    Saramacca Trend – Northwest Expansion Target Rationale MODD14-07 MODD14-06 SMDD18-292 10.5m @ 0.93 g/t Au 4.5m @ 3.07 g/t Au 10.5m @ 1.32 g/t Au 16.5m @ 1.12 g/t Au • Strike Extension of the Faya Bergi fault MODD15-18 3.0m @ 0.87 g/t Au MODD14-02 SMDD18-291 system and secondary shears hosting 3.0m @

  52. Slide 52: Section 3400NW

    Section 3400NW Faya Bergi SMDD18-290 7.5m @ 1.11 g/t Au 6.0m @ 3.90 g/t Au 4.5m @ 1.79 g/t Au Tigri SMDD18-292 16.5m @ 1.12 g/t Au Fresh rock boundary SMDD18-288 10.5m @ 1.38 g/t Au SMDD18-289 3m @ 0.87 g/t Au SMDD18-291 7.5m @ 4.58 g/t Au 3.0m @ 2.79 g/t Au 10.5m @ 1.73 g/t Au 4.5m @ 0.78 g/t Au No

  53. Slide 53: Brokolonko Landscape

    Brokolonko Landscape SSM saprolite mining Nugget field 53

  54. Slide 54: Pompoekampoe (Brokolonko) Drilling Program

    Pompoekampoe (Brokolonko) Drilling Program Exploration Potential • Extensive geochemical anomalies • Known gold occurrences 2019 Priority 1: • Historical & current artisanal mining Drill testing geochem anomalies • Along the Saramacca Trend Active artisanal mining “Hot Spot” Historical DDH (2008) of

  55. Slide 55: Brokolonko 2018 Drilling Results

    Brokolonko 2018 Drilling Results BKDD18-002 BKRC18-003 BKRC18-019 4.5m at 1.87 g/t Au 8.0m at 1.17 g/t Au 4.0m at 1.35 g/t Au 14.0m at 0.40 g/t Au 6.0m at 2.72 g/t Au BKRC18-020 6.0m at 0.42 g/t Au 6.0m at 0.83 g/t Au 8.0m at 0.92 g/t Au BKRC18-005 BKRC18-015 14.0m at 0.49 g/t Au 4.0m at 1.10 g/t Au

  56. Slide 56: RGM Landscape – SWOT

    RGM Landscape – SWOT

  57. Slide 57: RGM Landscape – SWOT

    RGM Landscape – SWOT Strengths Weaknesses • Government support • Reclaim footprint • In-country talent level • UJV metal accounting • LOM and consolidated land package • AISC • Mill stability • Site financed Saramacca capital • Strong management team • Blending requirements Opportunities Threats • N

  58. Slide 58: Ken Chernin VP, Investor Relations

    Ken Chernin Laura Young Martin Dumont VP, Investor Relations Director, Investor Relations Senior Analyst, Investor Relations T: 416-360-4743 T: 416-933-4952 T: 416-933-5783 l TSX: IMG l NYSE: IAG l 58

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