Iamgold Corporation · TSX:IMG

Iamgold — Technical Presentation (September 2018)

14 slides from Iamgold's technical presentation, Sep 15, 2018

  1. Slide 1: Côté Gold – Analyst Site Visit

    Côté Gold – Analyst Site Visit September 15, 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: Côté Gold Development Project

    Côté Gold Development Project 2021 – 2038 2020 Production 2019 Construction Potential to 2018 Investment extend LOM 2017 Feasibility study decision Begin pre-strip through exploration Construction Pre-Feasibility Study confirms low operating costs and ADVANCING ONE OF attractive returns CANADA’S LAR

  4. Slide 4: Côté Gold – Ontario (64.75%)

    Côté Gold Ontario (64.75%)  Key accomplishments since acquisition in 2012 Attributable 64.75% Tonnes Grade Contained Ounces Completed Prefeasibility Study and initiated Feasibility Study (000) (g/t) (000 Au) Converted 5.9 Moz (100%) from resources to reserves Probable Reserves1 126,961 0.9 3,837 Po

  5. Slide 5: Grade and Production

    Grade and Production Au payable (koz) 500 450 Au payable (koz) 400 Au production (koz) 350 300 250 200 150 100 50 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Year Au Mill Feed grade (g/t) 1.4 Au Mill Feed grade (g/t) 1.2 Au Mill Feed Grade (g/t) 1.0 0.8 0.6 0.4 0.2 0.0 1 2 3 4 5 6 7 8 9 10 11 12 13

  6. Slide 6: Feasibility Study

    Feasibility Study Key Changes from PFS  Mill throughput increase of about 10%, 36 ktpd  Automated truck haulage & production drilling as the Base Case  Camp location modified  Zero based design and cost estimates  Various savings or capital deferment initiatives underway Study Engineer  Wood G

  7. Slide 7: Feasibility Drill Program (Completed March 2018)

    Feasibility Drill Program (Completed March 2018) Objectives  Infill drilling- resource/reserve upgrade  Grade distribution in starter-pit area  Condemnation drilling for planned infrastructure  Provide Geological information – Updated Geology Model  Supply additional geochemical analyses for De

  8. Slide 8: Geology / Alteration Model

    Geology / Alteration Model 713 core holes totalling over 300,000 m assay database contains over 295,000 samples 8

  9. Slide 9: Exploration

    Exploration IAMGOLD

  10. Slide 10: Technology Strategy

    Technology Strategy Objectives  Apply proven technologies to reduce risk to personnel and enhance project economics  Develop core competencies around technology deployment and operations, sustain through continuous improvement  Leverage advanced skills and competencies to build valuable capacity

  11. Slide 11: Plant Power Infrastructure

    Plant  Increased plant capacity following optimization to 36ktpd  Decreased footprint and volume by approximately 25% from PFS  Optimized plant configuration and applied zero based design Power  Supplied from HONI T2R line Shining Tree – 44km connection – aligned with HONI Sustaining Projects 

  12. Slide 12: Côté Gold Development Timeline - Permitting

    Côté Gold Development Timeline - Permitting Yr 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 Yr Qtr Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Qtr Draft EA EA to Ont. Prov. Process MoE EA Agreed Decision with Ont. Ammen

  13. Slide 13: Côté Gold Development Timeline - Technical

    Côté Gold Development Timeline - Technical Yr 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 Yr Qtr Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Qtr 3rd IMG Last 1st IMG Resource Trelawney Resource Update Feasibility Study

  14. Slide 14: Investor Relations contacts

    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

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