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Iamgold Reports First Quarter 2019 Results; Reinforcing Our Self-Funding Model

Financials

TSX: IMG NYSE: IAG

NEWS RELEASE

IAMGOLD REPORTS FIRST QUARTER 2019 RESULTS;

REINFORCING OUR SELF-FUNDING MODEL

All monetary amounts are expressed in U.S. dollars, unless otherwise indicated.

For more information, refer to the Management Discussion and Analysis (MD&A) and Unaudited Consolidated

Interim Financial Statements for the three months ended March 31, 2019.

Toronto, Ontario, May 6, 2019 - IAMGOLD Corporation (“IAMGOLD” or the “Company”) reported its

consolidated financial and operating results for the quarter ended March 31, 2019.

"Despite a challenging first quarter, we are driving towards achieving a self-funded, self-sustaining

operating model," commented Steve Letwin, President and CEO of IAMGOLD, “This encompasses our

goal to reduce costs and increase margins, preserve cash, fund site capital expenditures within site cash

flows, and work safely and responsibly. At Essakane, we had strong production and cash flow generation

and are optimizing performance through de-bottlenecking and other projects. At Rosebel, we reported

significant reserve growth extending the mine life, with Saramacca first production planned in the second

half of 2019. At Westwood, we have a long-life production asset in a transition year, with mine redesign in

progress. Production remains on track for the year, with the first half lighter than the balance of the year, as

anticipated, and we reinforce our 2019 annual production guidance. Our exploration successes highlight

the district potential of each of our major sites and projects. Our balance sheet is stro ng, and we continue

to exercise prudence in our allocation of capital. We remain committed to our goal of delivering

shareholder value in 2019 and well beyond.”

First Quarter 2019 Highlights

• Attributable gold production of 185,000 ounces at cost of sales 1 per ounce of $962, total cash

costs2 per ounce produced of $884 and all-in sustaining costs2 per ounce sold of $1,086.

Attributable gold sales of 190,000 ounces at an average realized gold price per ounce of $1,308.

• Revenues of $251.0 million.

• Net loss attributable to equity holders of $41.3 million, or $0.09 per share.

• Adjusted net loss attributable to equity holders2 of $2.2 million, or $nil per share2.

• Net cash from operating activities of $8.8 million.

• Net cash from operating activities before changes in working capital2 of $33.8 million.

• Cash, cash equivalents, short-term investments, and restricted cash totaled $696.6 million at March

31, 2019. Cash and cash equivalents were $589.2 million, short term investments, primarily in

money market funds, were $83.8 million and restricted cash was $23.6 million.

2

Strategic Developments

Financial

• We entered into a forward gold sale arrangement ("Arrangement") with a syndicate of banks to receive

a cash prepayment of $170 million in December 2019 in exchange for delivering 150,000 ounces of

gold in 2022, with a gold floor price of $1,300 per ounce and a cap price of $1,500 per ounce, to

provide additional financial flexibility as we execute our growth strategy. The cost of the Arrangement is

5.38% per annum.

• IAMGOLD, together with AngloGold Ashanti Limited, entered into an agreement with the Government

of Mali for the sale of the joint venture partners’ combined 80% indirect interest in the Yatela mine for

$1. The sale is subject to the fulfillment of certain conditions and a one-time payment of estimated

rehabilitation, closure and social program costs of approximately $18.5 million.

Reserves and Resources

• On January 30, 2019, we reported a 57% increase in resources at the Diakha -Siribaya Gold Project in

Mali based on an updated resource estimate as at December 31, 2018, comprising 18.0 million tonnes

of indicated resources grading 1.28 g/t Au for 744,000 ounces and 23.2 million tonnes of inferred

resources grading 1.58 g/t Au for 1.2 million ounces.

• On March 26, 2019, we announced that a new gold discovery, referred to as the Gosselin Zone, has

been identified approximately 1.5 kilometres northwest of the Côté Gold deposit. Drilling highlights

included: 350 metres grading 0.81 g/t Au; 132.3 metres grading 1.13 g/t Au; 139.7 metres grading 1.36

g/t Au.

Operations and Development

• We received notice of approval of its Environmental and Social Impact Assessment from the

Government of Suriname for the Saramacca Project.

• Development activities at the Saramacca Project continued to advance with a primary focus on the

haul road construction to enable the operation to deliver ore to the Rosebel mill in the second half of

2019.

• The carbon-in-column ("CIC") plant at Rosebel, designed to improve recoveries, was com missioned

and became fully operational, producing an additional 2,200 ounces in the first quarter 2019.

• The oxygen plant at Essakane, designed to improve recoveries by 0.5%, was commissioned.

• Following the completion of a feasibility study in the fourth quarter 2018, IAMGOLD has continued to

optimize the design elements of the Boto Gold Project development, maintained stakeholder

engagement and commenced a drilling program.

• On January 28, 2019, we announced that we deferred a decision to proceed with the construction of

the Côté Gold Project in Canada.

Upcoming Growth Catalysts

• Development of Saramacca continues on schedule, with production expected to begin in the second

half of 2019.

• At Rosebel, a scoping study is underway to evaluate the underground mining potential of Saramacca,

which could result in higher grades and significantly lower waste volumes, thereby reducing costs.

• We continue to advance exploration activities along the Saramacca-Brokolonko trend in Suriname to

confirm the presence of mineralization and evaluate the resource potential.

• The Carbon-in-Leach and Heap Leach feasibility study at Essakane is progressing well and is

expected to be completed in the second quarter 2019.

• Discussions with the Government of Senegal on obtaining a mining concession for the Boto Gold

Project are well advanced, with approval expected in the second half of 2019.

• We are studying various design approaches to Westwood with a preliminary life of mine plan expected

in the fourth quarter 2019, followed by a NI 43-101 compliant plan in the first half 2020.

• A delineation diamond drilling program to support an initial mineral resource estimate for the Nelligan

Project in Quebec commenced during the first quarter 2019.

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SUMMARY OF FINANCIAL AND OPERATING RESULTS

Three months ended March 31,

Financial Results ($ millions, except where noted) 2019 2018

Revenues $ 251.0 $ 314.5

Cost of sales $ 251.9 $ 238.7

Gross profit (loss) $ (0.9 ) $ 75.8

Net earnings (loss) attributable to equity holders of IAMGOLD $ (41.3 ) $ 42.3

Net earnings (loss) attributable to equity holders ($/share) $ (0.09 ) $ 0.09

Adjusted net earnings (loss) attributable to equity holders of IAMGOLD1 $ (2.2 ) $ 40.4

Adjusted net earnings (loss) attributable to equity holders ($/share)1 $ — $ 0.09

Net cash from operating activities $ 8.8 $ 106.0

Net cash from operating activities before changes in working capital1 $ 33.8 $ 119.6

Key Operating Statistics

Gold sales – attributable (000s oz) 190 235

Gold production – attributable (000s oz) 185 229

Average realized gold price1 ($/oz) $ 1,308 $ 1,331

Cost of sales2 ($/oz) $ 962 $ 741

Total cash costs1 ($/oz) $ 884 $ 737

All-in sustaining costs1 ($/oz) $ 1,086 $ 953

Gold margin1 ($/oz) $ 424 $ 594

1 This is a non-GAAP measure. Refer to the non-GAAP performance measures section of the MD&A.

2 Cost of sales, excluding depreciation, as disclosed in note 29 of the Company's consolidated interim financial statements is on an attributable ounce

sold basis (excluding the non-controlling interests of 10% at Essakane and 5% at Rosebel) and does not include Joint Ventures which are accounted

for on an equity basis.

FIRST QUARTER 2019 SUMMARY

Financial Performance

• Revenues for the first quarter 2019 were $251.0 million, down $63.5 million or 20% from the same

prior year period. The decrease was primarily due to lower sales volume at Essakane ($28.9 million),

Westwood ($26.4 million), and Rosebel ($3.4 million), combined with a lower realized gold price ($4 .4

million).

• Cost of sales for the first quarter 2019 was $251.9 million, up $13.2 million or 6% from the same prior

year period. The increase was due to higher operating costs ($10.7 million) and higher depreciation

expense ($4.3 million), partially offset by lower royalties ($1.8 million). Operating costs were higher

primarily due to lower capitalized stripping and higher maintenance costs at Essakane and increased

mining and milling volumes at Rosebel, partially offset by a stronger U.S. dollar relative to the euro and

the Canadian dollar.

• Depreciation expense for the first quarter 2019 was $68.6 million, up $4.3 million or 7% from the same

prior year period. The increase was primarily due to the timing of capital additions, partially offset by an

increase in reserves at Essakane and Rosebel.

• Income tax expense for the first quarter 2019 was $1.4 million, down $10.4 million in the same prior

year period. Income tax expense for the first quarter 2019 comprised current income tax expense of

$9.7 million (March 31, 2018 - $22.5 million) and deferred income tax recovery of $8.3 million (March

31, 2018 - $10.7 million). The decrease in income tax expense was primarily due to changes to

deferred income tax assets and liabilities, differences in the impact of fluctuations in foreign exchange,

and differences in the level of taxable income in IAMGOLD's operating jurisdictions from one period to

the next.

• Net loss attributable to equity holders for the first quarter 2019 was $41.3 million, or $0.09 per share,

compared to net earnings of $42.3 million, or $0.09 per share in the same prior year period. The

decrease was primarily due to lower gross profit ($76.7 million) and higher other expenses ($17.3

million) which included an impairment charge of $12.5 million and restructuring costs at Westwood of

$3.2 million, partially offset by lower income taxes ($10.4 million).

4

• Adjusted net loss attributable to equity holders2 was $2.2 million, or $nil per share2, compared to

adjusted net earnings2 of $40.4 million, or $0.09 per share2 in the same prior year period.

• Net cash from operating activities for the first quarter 2019 was $8.8 million, down $97.2 million from

the same prior year period. The decrease was due to lower earnings after non-cash adjustments

($74.8 million), higher movements in non-cash working capital items and non-current ore stockpiles

($11.1 million), higher income taxes paid ($9.5 million) and lower net settlement of derivatives ($2.7

million), partially offset by net cash used in operating activities related to closed mines ($0.9 million).

• Net cash from operating activities before changes in working capital2 for the first quarter 2019 was

$33.8 million, down $85.8 million from the same prior year period.

Financial Position

• We ended the quarter in a strong financial position, with cash, cash equivalents, short -term

investments primarily in money market funds and restricted cash were $696.6 million at March 31,

2019, down $61.4 million from December 31, 2018. The decrease was primarily due to spending on

property, plant and equipment ($69.7 million), partially offset by cash generated from operating

activities ($8.8 million).

Production and Costs

• Attributable gold production, inclusive of joint venture operations, was 185,000 ounces for the first

quarter 2019, down 44,000 ounces from the same prior year period. The decrease was primarily due

to the impact of increased seismicity at Westwood in December 2018 (25,000 ounces), lower head

grades and throughput at Essakane (19,000 ounces) and lower head grades at the Joint Ventures

(3,000 ounces), partially offset by higher recoveries at Rosebel (3,000 ounces).

• Attributable gold sales, inclusive of joint venture operations, were 190,000 ounces for the first quarter

2019, down 45,000 ounces from the same prior year period. The decrease was due to lower sales at

Essakane (20,000 ounces), Westwood (19,000 ounces), Rosebel (3,000 ounces) and the Joint

Ventures (3,000 ounces).

• Cost of sales1 per ounce for the first quarter 2019 was $962, up 30% from the same prior year period

primarily due to the impact of lower sales volumes at Essakane and Westwood.

• Total cash costs2 per ounce produced for the first quarter 2019 were $884, up 20% from the same prior

year period. The increase was primarily due to the impact of lower production volumes . Included in

total cash costs2 for the first quarter 2019 was a reduction of $61 per ounce produced reflecting the

reduction of costs attributed to inventory to normalize for the amount of fixed overhead on a per unit

basis as a consequence of abnormally low production at Westwood (2018 - $nil) and realized

derivative gains from hedging programs of $2 per ounce produced (2018 - $11).

• All-in sustaining costs2 per ounce sold for the first quarter 2019 were $1,086, up 14% from the same

prior year period. The increase was primarily due to higher cost of sales per ounce, partially offset by

lower sustaining capital expenditures. Included in all-in sustaining costs2 for the first quarter 2019 was

a reduction of $60 per ounce sold reflecting the reduction of costs attributed to inventory to normalize

for the amount of fixed overhead on a per unit basis as a consequence of abnormally low production at

Westwood (2018 - $nil) and realized derivative gains from hedging programs of $2 per ounce sold

(2018 - $13).

2019 Guidance

(Refer to MD&A for more detail)

The Company maintains its full-year 2019 production guidance of 810,000 to 870,000 attributable ounces

and its guidance for all-in sustaining costs2 per ounce sold of $1,030 to $1,080. The Company also

maintains its full-year guidance for cost of sales per ounce of $790 to $840 and total cash costs 2 per ounce

produced of $765 to $815, but notes that a number of cost and productivity improvement initiatives are

underway to mitigate the risk that these two targets may not be achieved by the end of the year. Guidance

will be reviewed in the second quarter 2019 and updated as necessary. Gold production at Westwood is

expected to improve starting in the second quarter 2019 compared to the first quarter, and is expected to

be strongest in the fourth quarter.

5

Commitment to Zero Harm Continues

The DART rate3, representing the frequency of all types of serious injuries across all sites and functional

areas for the first quarter 2019 was 0.58, below IAMGOLD's target of 0.63. Unfortunately, the health and

safety performance of IAMGOLD was affected by a fatality of a contractor at the Essakane mine in the first

quarter 2019 due to an equipment fire. Zero Harm remains IAMGOLD's number one priority. We are

implementing several initiatives, including a behaviour-based safety program, to ensure a safer work

environment.

ATTRIBUTABLE GOLD PRODUCTION AND COSTS

Gold Production

(000s oz)

Cost of Sales1

($ per ounce)

Total Cash

Costs2

($ per ounce

produced)

All-in Sustaining

Costs2

($ per ounce

sold)

Three months ended March 31, 2019 2018 2019 2018 2019 2018 2019 2018

Owner-operator

Essakane (90%) 90 109 $ 896 $ 712 $ 883 $ 665 $ 1,010 $ 914

Rosebel (95%) 68 65 889 798 901 829 1,064 914

Westwood (100%)3 15 40 1,549 719 858 716 1,192 873

Owner-operator4 173 214 $ 962 $ 741 $ 888 $ 725 $ 1,103 $ 955

Joint Ventures 12 15 828 904 838 924

Total operations 185 229 $ 884 $ 737 $ 1,086 $ 953

Cost of sales1 ($/oz) $ 962 $ 741

Cash costs, excluding royalties $ 822 $ 678

Royalties 62 59

Total cash costs2 $ 884 $ 737

All-in sustaining costs2 $ 1,086 $ 953

1 Cost of sales, excluding depreciation, as disclosed in note 29 of the Company's consolidated interim financial statements is on an attributable ounce sold

basis (excluding the non-controlling interests of 10% at Essakane and 5% at Rosebel) and does not include Joint Ventures which are accounted for on an

equity basis.

2 This is a non-GAAP measure. Refer to the non-GAAP performance measures section of the MD&A. Consists of Essakane, Rosebel, Westwood and the

Joint Ventures on an attributable basis.

3 Costs of sales per ounce sold for Westwood does not include the impact of normalization of costs for the three months ended March 31, 2019 of $60 per

ounce (2018 - $nil).

4 Owner-operator all-in sustaining costs include corporate general and administrative costs. Refer to all-in sustaining costs reconciliation on page 26 of the

MD&A.

OPERATIONS ANALYSIS BY MINE SITE

Essakane Mine - Burkina Faso (IAMGOLD interest - 90%)

Attributable gold production for the first quarter 2019 of 90,000 ounces was lower by 17% compared to the

same prior year period primarily due to lower head grades and throughput. Ore feed for the first quarter

2019 was primarily sourced from lower grade zones relative to higher grades realized in the same prior

year period. Mill throughput was unfavourably impacted in the first quarter 2019 by coarser mill feed and

lower mill availability due to the timing of mill maintenance. The oxygen plant was commissioned during

the quarter and the optimization of oxygen injection is ongoing. The oxygen plant is expected to increase

recoveries by 0.5% through improved leach kinetics and to improve the efficiency of the circuit by reducing

reagent consumption. Despite this, production for the quarter was adversely impacted by low er recoveries

as the mine sequenced through more graphitic zones.

Total material mined in the first quarter 2019 was lower compared to the same prior year period primarily

due to lower equipment availability. Essakane commissioned six haul trucks and one wheel dozer in March

2019 with an additional haul truck and two excavators expected to be commissioned in the second quarter

2019. The new equipment is expected to increase hauling capacity, improve equipment availability and

reduce reliance on the contracted mining fleet in future periods. Ore mined in the first quarter 2019 was

higher compared to the same prior year period due to mining and stockpiling of lower grade ore to support

the construction of a proposed heap leach facility at the end of carbon-in-leach ("CIL") operations.

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The CIL and Heap Leach feasibility study progressed well during the quarter and is expected to be

completed in the second quarter 2019. The feasibility study is expected to support an investment in mill

optimization through a de-bottlenecking project and the postponement of the higher capital Heap Leach

Project to the end of CIL operations. The Mill De-Bottlenecking Project is a lower capital intensive option

and could increase CIL plant throughput to 13.5 million tonnes per annum at 100% hard rock which is

significantly higher than the current capacity of 12 million tonnes per annum at 100% hard rock and the

original nameplate capacity of 10.8 million tonnes per annum at 100% hard rock. The CIL crushing circuit

would be used for the heap leach process at the end of CIL operations.

Cost of sales of $896 per ounce sold and total cash costs of $883 per ounce produced for the first quarter

2019 were higher by 26% and 33%, respectively compared to the same prior year period primarily due to

the impact of lower sales and production volumes. Essakane also continued to face cost pressures with

rising energy costs which were partially mitigated by the supply of energy from the solar plant and

IAMGOLD's hedging program. Operating costs were higher primarily due to increased mining equipment

maintenance, however a stronger U.S. dollar relative to the euro for the quarter helped to alleviate the

impact of these cost pressures.

All-in sustaining costs of $1,010 per ounce sold for the first quarter 2019 were higher by 11% compared to

the same prior year period primarily due to higher cost of sales per ounce, partially offset by lower

sustaining capital expenditures. Included in total cash costs and all-in sustaining costs for the first quarter

2019 was the impact of realized derivative gains from hedging programs of $3 per ounce produced and $3

per ounce sold, respectively (2018 - $18 and $21).

Sustaining capital expenditures for the first quarter 2019 of $10.2 million included capital spares of $2.5

million, mobile equipment of $2.4 million, capitalized stripping of $1.6 million and various other sustaining

capital expenditures of $3.7 million. Non-sustaining capital expenditures of $20.2 million included

capitalized stripping of $8.8 million, tailings liners and dams of $6.9 million, mobile equipment of $3.4

million and CIL and Heap Leach feasibility study of $1.1 million.

Outlook

We expect attributable production at Essakane in 2019 to be in the range of 375,000 and 390,000 ounces.

Capital expenditures are expected to be approximately $125 million, consisting of $55 million in sustaining and

$70 million in non-sustaining capital expenditures.

Rosebel Mine - Suriname (IAMGOLD interest - 95%)

Attributable gold production of 68,000 ounces in the first quarter 2019 was 5% higher compared to the

same prior year period primarily due to recoveries. The CIC plant became fully operational in January

2019, which had a favourable impact on recoveries with an additional 2,200 ounces recovered from tailings

in the quarter. The plant has been installed between the two existing ponds at the Rosebel tailings

management facility and will be used to passively treat tailings decant water to recover residual gold that is

present in the solution. The plant is currently on track to exceed the minimum expected recovery of 5,000

ounces annually at a marginal operating cost of approximately $35 per ounce to cover additional power

and elution costs.

Development work on Saramacca continued during the quarter, targeting the commencement of

production in the second half of 2019. Construction of the 18 kilometre haul road from Rosebel to

Saramacca and the 5 kilometre long section on the Rosebel mineral lease continued during the quarter. In

addition, deliveries for the hauling fleet from orders placed in 2018 are on track to commence in the

second quarter 2019. The Environmental and Social Impact Study (“ESIA”) was approved on January 17,

2019, allowing for the commencement of infrastructure construction, which is expected in the second

quarter 2019.

Rosebel is also conducting a scoping study to evaluate the underground mining potential of Saramacca

which could result in higher grades and substantially reduced waste stripping costs. Saprolite mining in the

initial years is expected to continue as planned with future potential for underground mining once hard rock

is reached. Diamond drilling to support this study commenced in the quarter and work to continue defining

the mineral resource is ongoing.

7

Cost of sales of $889 per ounce sold and total cash costs of $901 per ounce produced for the first quarter

2019 were higher by 11% and 9%, respectively, compared to the same prior year period. Operating costs

were higher, driven by an increase in mining and milling volumes with harder rock in addition to higher

local labour cost following the finalization of the Collective Labour Agreement in the third quarter 2018.

However, Rosebel did see a decline in energy costs combined with lower light fuel consumption resulting

from shorter hauling distances to the mill, despite higher mine production.

All-in sustaining costs of $1,064 per ounce sold for the first quarter 2019 were 16% higher compared to the

same prior year period primarily due to higher cost of sales per ounce and higher sustaining capital

expenditures. Included in total cash costs and all-in sustaining costs for the first quarter 2019 was the

impact of realized derivative gains from hedging programs of $1 per ounce produced and $1 per ounce

sold, respectively (2018 - $5 and $4).

Sustaining capital expenditures for the first quarter 2019 of $11.1 million included capital spares of $4.6

million, mill equipment of $1.9 million, capital stripping of $1.5 million, and various other sustaining capital

expenditures of $3.1 million. Non-sustaining capital expenditures for the first quarter 2019 of $9.2 million

related to the Saramacca Project.

Outlook

We expect attributable production at Rosebel in 2019 to be in the range of 315,000 and 330,000 ounces.

Capital expenditures are expected to be approximately $145 million, consisting of $70 million in sustaining and

$75 million in non-sustaining capital.

Westwood Mine - Canada (IAMGOLD interest - 100%)

Gold production for the first quarter 2019 of 15,000 ounces was 63% lower than the same prior year period

as the mine assessed and adjusted stope sequences to address increased seismic activity in localized

areas in the fourth quarter 2018 impacting production. The risk of seismicity varies according to the

geometry of the openings and mining sequence. To manage this, we are studying various design

approaches to Westwood with a preliminary life of mine ("LOM") plan expected in the fourth quarter 2019,

followed by a NI 43-101 compliant plan in the first half of 2020. To ensure that mining is both profitable and

safe, we expect that the steady state production level for the mine may be lower than prior ramp -up target

levels.

We continue to adjust mining methods, ground support and safety protocols to address seismic activity,

with the commissioning of additional equipment capable of operating remotely in challenging areas. Mine

production activities are limited on the affected levels until an updated risk mitigation plan can be

formalized. Mining has been expanded in unaffected areas which contain lower grade stopes and is

expected to increase in the second quarter 2019 as areas with lower seismic risk are access ed for

production.

On March 19, 2019, we announced a 32% reduction in the mine workforce. The decision resulted from

both planned reductions due to the current stage of mine development as well as a realignment of costs

with reduced production levels, with a cash-flow neutral position projected for 2019. IAMGOLD remains

committed to the development of the Westwood mine and is taking these actions to optimize the future

development of the resource that is both safe and profitable.

Despite heading closures in respect of seismic protocol, underground development continued at planned

rates in the first quarter 2019 to open up access to new mining areas with lateral development of

approximately 2,500 metres, averaging 28 metres per day. To aid in the continuation of underground

development while respecting safety protocols in place for mining in areas where seismicity is present,

three units of bolting equipment received in 2018 which are designed to manage seismic exposure were

commissioned during the quarter. Infrastructure development continued in future development blocks at

lower levels.

In accordance with International Financial Reporting Standards, we reduced the cash costs and

depreciation attributed to inventory for the first quarter 2019 by $11.3 million and $5.0 million, respectively

(2018 - $nil and $nil) to normalize for the amount of fixed overhead on a per unit basis as a consequence

of abnormally low production. We reduced total cash costs and all-in sustaining costs for the first quarter

2019 by $778 per ounce produced and $610 per ounce sold, respectively (2018 - $nil and $nil).

8

Cost of sales per ounce sold for the first quarter 2019 of $1,549 were 115% higher compared to the same

prior year period primarily due to lower sales volume. Total cash costs per ounce produced, which included

the impact of normalization, was 20% higher compared to the same prior year period.

All-in sustaining costs per ounce sold for the first quarter 2019 of $1,192 were higher compared to the

same prior year period by 37% primarily due to higher cost of sales per ounce, partially offset by the

impact of cost normalization and lower sustaining capital expenditures. Included in total cash costs and all -

in sustaining costs for the first quarter 2019 was the impact of realized derivative gains from currency

hedging programs of $2 per ounce produced and $2 per ounce sold, respectively (2018 - $8 and $11).

Sustaining capital expenditures for the first quarter 2019 of $4.7 million included deferred development of

$3.0 million, underground equipment of $1.3 million, and underground construction of $0.4 million. Non -

sustaining capital expenditures for the first quarter 2019 of $7.9 million included deferred development of

$4.9 million, underground construction of $1.2 million, development drilling of $1.0 million and other non-

sustaining capital expenditures of $0.8 million.

Outlook

We expect production at Westwood in 2019 to be in the range of 100,000 and 120,000 ounces as mining

and development activities continue to progress as the new life of mine is being developed, while

respecting safety protocols for areas where seismicity is present. Capital expenditures are expected to be

approximately $45 million, consisting of $15 million in sustaining and $30 million in non -sustaining capital.

Sadiola Mine - Mali (IAMGOLD interest - 41%)

Attributable gold production for the first quarter 2019 of 12,000 ounces was lower by 20% compared to the

same prior year period primarily due to lower head grades as a result of greater drawdowns of margin al

ore stockpiles. Total cash costs per ounce produced and all-in sustaining costs per ounce sold for the first

quarter 2019 were lower compared to the same prior year period as a result of lower mining costs and

greater utilization of marginal stockpiles due to the cessation of mining activity in the second quarter 2018.

An agreement with the Government of Mali, on terms for investment in the Sadiola Sulphide Project, must

be reached in order to prevent the operation from entering a phase of suspended exploitation (care and

maintenance), once processing of the ore stockpiles is complete. Processing of the ore stockpiles is

expected to be completed in the second half of 2019. While this agreement has not yet been reached,

IAMGOLD and AngloGold Ashanti, who collectively own an 82% interest in Sadiola, have initiated a

process to identify third parties that may be interested in acquiring their collective interest in Sadiola. The

process is at a preliminary stage and there is no certainty of its outcome.

Yatela Mine - Mali (IAMGOLD interest - 40%)

The Yatela mine had limited production and sales for the first quarter 2019, consistent with the same prior

year period. A limited quantity of production continues from rinsing of the leach pads.

On 14 February 2019, Sadiola Exploration Limited ("SADEX"), the entity jointly held by AngloGold Ashanti

Limited and IAMGOLD Corporation, entered into a share purchase agreement with the Government of

Mali, whereby SADEX agreed to sell to the Government of Mali its 80% participation in Société

d’Exploitation des Mines d’Or de Yatela S.A. ("Yatela"), for a consideration of $1. The transaction remains

subject to the fulfillment of a number of conditions precedent, among which the adoption of two laws,

confirming the change of status of Yatela to a state entity, and also the creation of a dedicated state

agency, notably in charge of mine rehabilitation and closure. As part of the transaction, and upon its

completion, SADEX will make a one-time payment of approximately $18.5 million to the said state agency,

in an amount corresponding to the estimated costs of completing the rehabilitation and closure of the

Yatela mine, and also financing certain outstanding social programs. Upon completion and this payment

being made, SADEX and its affiliated companies will be released of all obligations relating to the Yatela

mine including those relating to rehabilitation, mine closure and the financing of social programs.