Iamgold Corporation · TSX:IMG

Iamgold — Barclays Select Series 2015: Metals & Materials Cross Asset Forum

40 slides from Iamgold's conference presentation, Mar 23, 2015

1. Slide 1: IAMGOLD Investor Presentation

   IAMGOLD Investor Presentation Q1 2015 TSX: IMG NYSE: IAG

2. Slide 2: Cautionary Statement on Forward-Looking Information

   Cautionary Statement on Forward-Looking Information All information included in this presentation, 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 state

3. Slide 3: IAMGOLD's Gold Assets – Global

   IAMGOLD’s Gold Assets – Global Four Operating Gold Mines: 2015 Production Guidance 820k – 860k oz. 3

4. Slide 4: Changing the Game

   Changing the Game Strong Operational Exploration Excellence Pipeline Financial Sale of Flexibility Niobec 4

5. Slide 5: Focused on Operational Excellence in 2014

   Focused on Operational Excellence in 2014 Essakane Mine – 33% growth in production to 332k oz. Westwood – ramping up commercial production with 70k in first 6 mos Rosebel – Steady grade improvement in H2 drives production to 325k oz. 5

6. Slide 6: 2014 Attributable Production Trend

   2014 Attributable Production Trend1 300 250 7% 9% 241 200 20% 225 206 Improving Westwood in 000’s oz. grades at Mill expansion commercial Rosebel and 150 172 at Essakane production Essakane Grade 100 improvement and higher throughput at 50 Rosebel 0 Q1 Q2 Q3 Q4 1 Attributable gold production include

7. Slide 7: Met / Exceeded 2014 Operating Targets

   Met / Exceeded 2014 Operating Targets Produced 844,000 ounces of gold, within guidance Reduced all-in sustaining costs quarter-over-quarter › Q4’14 AISC1,2 – gold mines3 were $209/oz. lower than Q4’13  Full-year AISC of $1,101/oz., $49/oz. better than guidance 1 This is a non-GAAP measure. Refer

8. Slide 8: Poised for Growth

   Poised for Growth Lower Lower >$800 M Costs CAPEX Cash 8

9. Slide 9: All-In Sustaining Costs Continue to Improve

   All-In Sustaining Costs1,2 - gold mines3 Continue to Improve 1,400 All figures in $/oz. sold 1,273 1,286 1,288 1,272 1,201 1,200 1,230 1,186 1,124 1,115 1,000 1,021 800 600 400 200 ` 0 Q4 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 1 3 1 Total Cash Costs –gold mines Average Realized Gold Price 1 This is a

10. Slide 10: Cost Reductions Continued Through 2014

    Cost Reductions Continued Through 2014 Gold Operations1 Cost Reductions 90 $85M $59M 80 25 11 13 70 Essakane Westwood 60 1 50 $M Rosebel 40 35 $62M 30 59 20  Includes sustainable savings 10 from 2013  Corporate restructuring in 2014 0 2014  2014 initiatives to improve Gold Operations Total 1 Corp

11. Slide 11: Improving Performance Opportunities at Rosebel

    Improving Performance Opportunities at Rosebel  Continue to be focused on improving operating efficiencies  In 2014, we employed a third party to review our mining and milling processes  Initiatives to improve processes and productivity are producing positive results Initiatives Implemented Resul

12. Slide 12: Disciplined Capital Spending

    Disciplined Capital Spending 800 54% of the decrease from 2014 to 2015 due 700 $669M to reduced spending on gold assets; balance 600 due to sale of Niobec 500 Development / 400 $M Expansion $325M 300 Sustaining $230M* 200 100 0 2013 2014 2015 Guidance * +/- 10% 12

13. Slide 13: 2015 Capital Expenditure Outlook

    2015 Capital Expenditure Outlook Development/ ($ millions) Sustaining1 Expansion Total (Non-sustaining) Rosebel 70 10 80 Essakane 55 5 60 Westwood 30 50 80 Total gold segments 155 65 220 Côté Gold - 5 5 Total consolidated 155 70 225 Joint ventures 5 - 5 Total (±10%) 160 70 230 1 Includes capitalized

14. Slide 14: Maintaining Strong Liquidity

    Maintaining Strong Liquidity $1,361 40 500 $millions $821 Proceeds from flow through shares 1 162 Unused credit 500 facility Gold bullion at market 659 162 Cash & cash equivalents 159 As at December 31, 2014 Proforma as at December 31, 2014, with sale of Niobec and cash proceeds from flow through sh

15. Slide 15: Priorities for Use of Proceeds from Sale of Niobec

    Priorities for Use of Proceeds from Sale of Niobec 230 OPTIONS $ millions 500 • M&A 270 • Additional CAPEX, i.e. SSP • Bond repurchase Proceeds from Niobec 2015 Capex Guidance Remainder* Sale • Combination of above 167 *$50M balance can be kept 15

16. Slide 16: Growth Strategy

    Growth Strategy Optimize Returns from Existing Mines Advance Exploration Pursue M&A and JV Opportunities 16

17. Slide 17: Operations

    Operations #IAMGOLD

18. Slide 18: Westwood Ramping Up – Canada

    Westwood Ramping Up – Canada 40 1000  High-grade, low-cost underground gold mine 35 › Estimated 20 year mine life 800 30 › Avg. resource grade ~10g/t Au 25  Commercial production July 1, 2014 (000s oz.) 600 20 35 35 15 400 › 70,000k oz. produced in first six months at cash costs of $822/oz. and AI

19. Slide 19: Improving Performance at Rosebel - Suriname

    Improving Performance at Rosebel - Suriname 100 1000  Multiple open-pit mine 80 94 800  Diminishing supply of soft rock within current reserves 80 83  2014 – 325,000 oz. produced at total cash costs of (000s oz.) 60 68 600 ($/oz.) $804/oz. and AISC of $1,045/oz. 40 400  Improving trend in grades

20. Slide 20: Optimizing Performance at Essakane – Burkina Faso

    Optimizing Performance at Essakane – Burkina Faso 100 1000  Open-pit mine in 4th year, 10 years remaining in LOM 80 92 89 800  Mill expansion in 2013 to accommodate hard rock 83  2014 cash cost of $852/oz reflects harder rock and lower 60 68 600 capitalized stripping – AISC of $1,060/oz. (000s oz

21. Slide 21: Revitalization Strategy for Sadiola – Mali

    Revitalization Strategy for Sadiola – Mali 30 1200 25 1000  Open-pit mine in operation for 20 years 20 24 800  Transitioning to hard rock (000s oz.) 20 19  Continuing to look for additional oxide reserves ($/oz.) 15 21 600 10 400  Existing plant not built for hard rock 5 200  2014 production of

22. Slide 22: Acquisition Criteria

    Acquisition Criteria Predominantly gold Producing or near-producing mine Minimum production of 100k oz./year Higher grades Lower costs Good mining jurisdiction 22

23. Slide 23: Exploration

    Exploration # IAMGOLD

24. Slide 24: Greenfield: Pitangui Project, Brazil

    Greenfield: Pitangui Project, Brazil  Infill drilling continues at Sâo Sebastiâo, 24,500m of diamond drilling completed in 2014  April 2014 –maiden inferred resource estimate of 0.64 Moz at 4.88 g/t Au  June 2014 – confirmed continuity of known resource / identified new high-grade intersections i

25. Slide 25: Greenfield: Boto Gold Project, Senegal

    Greenfield: Boto Gold Project, Senegal  2014 updated indicated resource grew to 1.2 Moz. at 1.7g/t Au from July 2013 initial indicated resource estimate of 1.1 Moz at 1.6 g/t Au › 2014 inferred resource grew by 550,000 oz. at 1.8 g/t Au  February 2015 – final assay results continue to show Deposit

26. Slide 26: Joint Venture Project Update – Siribaya (Mali)

    Joint Venture Project Update – Siribaya (Mali) with Merrex Gold Inc.  Focus on Diakha prospect - extension of trend hosting Boto Fekola -B2Gold Gold deposit 3.9Moz @ 1.91 g/t Au*  2014 drill program confirmed gold Boto-Malikoundi mineralization with similar Mali 1.2Moz @ 1.7 g/t Au** characteristi

27. Slide 27: Joint Venture Project Update – Eastern Borosi

    Joint Venture Project Update – Eastern Borosi (Nicaragua) with Calibre Mining  176km land package with 2 gold and silver 2 deposits and series of exploration targets  Q3/14- Phase I drilling completed focused on 3 different vein systems, intercepted high- Bonanza E. Borosi Project grade mineraliza

28. Slide 28: Joint Venture Project Updates - Monster Lake (Quebec)

    Joint Venture Project Updates - Monster Lake (Quebec) with Tomagold Corporation  Excellent location in Abitibi Greenstone belt  High-grade intervals (25 to +30 g/t Au) from previous drilling  2014 diamond drilling program of Monster Lake 12.761m on tested targets along 4km of mineralized corridor

29. Slide 29: Why invest in IAMGOLD?

    Why invest in IAMGOLD?  Diversified portfolio of operating gold mines in friendly mining jurisdictions  Owned and operated mines generating positive free cash flow  AISC improving - optimizing economic returns from existing assets  Demonstrated ability to adapt in a volatile gold market  Signif

30. Slide 30: Appendices

    Appendices COAPORATION

31. Slide 31: 2015 Production and Cost Guidance

    2015 Production and Cost Guidance1 Guidance Rosebel (000s oz.) 290 – 300 Essakane (000s oz.) 360 – 370 gold production Attributable Westwood (000s oz.) 110 – 130 Total owner-operator production (000s oz.) 760 – 800 Joint ventures (000s oz.) 60 Total attributable production (000s oz.) 820 – 860 Total

32. Slide 32: 2014 Reserves and Resources

    2014 Reserves and Resources1 As of December 31, 2014 2014 Change 2013 Gold (000s attributable oz. contained) Total proven and probable mineral reserves 8,608 (15%) 10,127 Total measured and indicated mineral resources 2,3 21,412 (9%) 23,408 Total inferred resources 7,018 11% 6,299 • Gold reserves we

33. Slide 33: IAMGOLD – Consolidated Production and Cost Profile

    IAMGOLD – Consolidated Production and Cost Profile 2015-20191,2 900 1,400  This chart provides a 5- 800 year outlook on 1,200 production, cash costs 700 and all-in sustaining costs  Detailed charts by mine Attributable Production 000s koz. 1,000 600 for each of our wholly- 500 800 owned mines foll

34. Slide 34: Westwood – Production and Cost Profile 2015-2019

    Westwood – Production and Cost Profile 2015-2019 250 1,200 200 1,000  Westwood to ramp up to LOM level of production in 800 2019 150  Total cash costs and AISC expected to trend 000s oz. $/oz. 600 downwards as production ramps up 100 400  Gradual increase in production allows for required undergr

35. Slide 35: Westwood Development Performance – Average Advance Meters / Day

    Westwood Development Performance – Average Advance Meters / Day 8.8 8.8 9.2  Exceptional improvement 8.4 in 2014 quarter-over- quarter in average advance meters/day  Production is ramping up as expected Average Meters/Day 5.7  Tonnage and grade reconciliation to date has 4.2 been positive  Under

36. Slide 36: Rosebel – Production and Cost Profile 2015-2019

    Rosebel – Production and Cost Profile 2015-2019 350 1,600  As the percentage of hard 1,400 rock increases, production 300 is expected to decrease 1,200  Harder rock requires more 250 power for crushing and Attributable Production 000s oz. grinding, challenging to 1,000 sustain throughput capacity

37. Slide 37: Essakane– Production Profile 2015-2019

    Essakane– Production Profile 2015-2019 450 1,400 400 1,200  Major mill expansion completed in 2013 to 350 accommodate a growing proportion of hard rock 1,000  Expansion driving strong Attributable Production 000s oz. 300 production and steady 800 250 state costs for the next $/oz. four years 200 6

38. Slide 38: Summary of Outstanding Hedge and Non-Hedge Derivative Contracts

    Summary of Outstanding Hedge and Non-Hedge Derivative Contracts1 Contracts 2015 2016 2017 2018 Foreign currency Canadian dollar contracts (M of C$) 145.0 60.0 – – Contract rate range (C$/$) 1.10 – 1.17 1.12 – 1.18 – – Hedge ratio2 60% 29% – – Euro contracts (M of €) 126.0 – – – Contract rate range (

39. Slide 39: Capital Structure

    Capital Structure Equity Debt IMG CDN Equity (as at Feb 27, 2015) IAMGOLD 6 ¾ callable bonds October 1, 2020 Price: $3.06 Rating: B2 (Moody’s), and B+ (S&P) as of February 2015 Market Cap: $1,196M Rank: Sr Unsecured 52 Wk High/Low: $4.82 / $1.62 Issue price: $100 YTD: (3%) Last trade: $80.50 (as at

40. Slide 40: Investor Relations

    Investor Relations info@iamgold.com Bob Tait Laura Young Penelope Talbot-Kelly VP, Investor Relations Director, Investor Relations Analyst, Investor Relations T: 416-360-4743 T: 416-933-4952 T: 416-933-4738 TSX: IMG NYSE: IAG

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