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IAMGOLD provides update on advanced exploration projects maiden resource estimate – Pitangui project, Brazil diamond drilling results – Boto Gold project, Senegal

April 9, 2014

TSX: IMG NYSE: IAG

All monetary figures are expressed in U.S. dollars.

TORONTO, April 9, 2014 /PRNewswire/ – IAMGOLD Corporation (“IAMGOLD” or the “Company”) today provided an update from ongoing
exploration activities at the Pitangui project in Minas Gerais State,
Brazil and the Boto Gold project in Senegal. Drilling programs are
currently underway at both sites with the objective to delineate and
expand current mineral resources in alignment with the Company’s
strategic mandate for organic growth.

PITANGUI PROJECT, BRAZIL

A maiden mineral resource estimate has been completed in accordance with
National Instrument 43-101 for the Company’s 100%-owned Pitangui gold
project located approximately 110 kilometres northwest of Belo
Horizonte, the capital city of Minas Gerais State, Brazil. The mineral
resource incorporates assay results available up to December 6, 2013
from 57 diamond drill holes totalling 19,600 metres, and was completed
by SRK Consulting (Canada) Inc. (“SRK”).

IAMGOLD identified and staked the Pitangui property from late 2007 to
mid-2008 and commenced systematic grassroots exploration activities in
2009. The initial scout drilling program completed in late 2011 to test
prioritized targets led to the discovery of the São Sebastião gold
deposit. Since its discovery, delineation drilling has been completed
on nominal 100 x 100 metre centres to support the maiden mineral
resource estimate reported herein. The mineral resource estimate,
based on an underground mining scenario, comprises an Inferred Resource of 4.07 million tonnes grading 4.88 grams of gold per
tonne for 0.64 million contained ounces,
at a cut-off grade of 3.0 grams of gold per tonne (see Table 1 below).


     TABLE 1: MINERAL RESOURCE STATEMENT, PITANGUI PROJECT, BRAZIL
                    Effective Date: January 9, 2014

    Classification     Deposit    Tons  Gold Grade Contained Ounces
                                 (000s)  (g/t Au)    (Au) (000s)

        Inferred   São Sebastião 4,070      4.88            638

Notes:

      1. CIM definitions were followed for classification of Mineral
         Resources.
      2. Mineral Resources are estimated at a cut-off grade of 3.0 g/t Au.
      3. Mineral Resources are estimated using a gold price of $1,500 per
         ounce.
      4. High grade capped assay values vary from 10 g/t Au to 15 g/t Au
         based on geological area.
      5. Bulk density, as determined from 2,570 measurements, varies from
         3.06 g/cm3 to 3.24 g/cm3 based on geological area.
      6. Mineral resources are not mineral reserves and have not
         demonstrated economic viability. There is no certainty that all or
         any part of the mineral resource will be converted into mineral
         reserves.

Craig MacDougall, Senior Vice President, Exploration for IAMGOLD,
stated, “The São Sebastião gold deposit is an example of an outstanding grass
roots discovery made by our Brazilian exploration team who have worked
hard to bring this project from a concept to an established resource.
I am highly encouraged with the results achieved to date and with the
potential for additional discoveries.”

The estimate was prepared using a block model constrained with
three-dimensional wireframes of the principal mineralized domains
constructed on fourteen vertical sections spaced at approximately 100
metres. Values for gold were interpolated into blocks using ordinary
kriging. The resource estimate was further constrained by cost
assumptions derived from comparable operating underground mines to
support the CIM requirement that Mineral Resources have reasonable
prospects for economic extraction. These assumptions include $70 per
tonne for mining, $18 per tonne for processing and $10 per tonne for
general and administrative costs. The resource estimate assumes a
long-term gold price of $1,500 per ounce and a gold metallurgical
recovery of 93% based on preliminary metallurgical test work results.

Drilling has confirmed the presence of several parallel and complexly
folded horizons of banded iron formation (‘BIF’) within the Archean
Pitangui greenstone belt. Within the iron formations, gold
mineralization is associated with sulphide replacement of primary
magnetite bands, characterized by the presence of pyrrhotite and lesser
amounts of arsenopyrite, pyrite, and chalcopyrite. To date,
mineralization has been outlined for approximately 1,400 metres along
strike and over 500 metres down-dip. A significant proportion of the
current resource estimate is derived from one shallowly plunging
mineralized horizon (‘Biquinho Zone’). This horizon remains the focus
of the ongoing delineation drilling program which is targeting a
structurally thickened shoot to expand the current resource inventory.

Several active mining operations located in the Brazilian Iron
Quadrangle exploit gold deposits of a comparable age, host rock type
and mineralization style. These deposits typically comprise multiple
mineralized shoots with high plunge to strike-length ratios, a result
of complex structural controls on gold distribution. Examples include
AngloGold Ashanti’s Cuiabá and Lamego deposits.

Next Steps

Drilling continues with the objective to: 1) increase the confidence in
and expand the resources of the currently identified structurally
thickened core area of the Biquinho horizon with a 50 x 50 metre infill
drill program, and 2) extend the limits of the mineralization and
search for additional higher-grade and thickened shoots within the
mineralized footprint. On the remainder of the 180 square kilometer
Pitangui property, exploration is continuing with the objective to
identify additional target areas within the host BIF sequence for drill
testing. A 600 line-kilometer airborne Versatile Time Domain
Electromagnetic survey is planned for this spring with the objective to
detect the presence of any conductive anomalies which may represent
sulphide accumulations within the iron formation. Such anomalies would
represent priority exploration targets.

BOTO GOLD PROJECT, SENEGAL

The Boto Gold project comprises 236 square kilometres of exploration
licenses located in eastern Senegal along the Senegal-Mali border. The
geological setting of the project area is similar to the world class
Sadiola and Loulo gold districts in adjacent Mali, being underlain by
highly prospective, Birimian-aged metasedimentary, volcanic and
intrusive rocks along a seven-kilometre strike length of the
Senegal-Mali Shear Zone.

The project hosts an indicated resource of 22 million tonnes averaging
1.62 grams of gold per tonne for 1.14 million ounces and an inferred
resource of 1.9 million tonnes averaging 1.35 grams of gold per tonne
for 81,000 ounces (see news release dated July 29, 2013). A significant
percentage of the total resources was derived from the newly discovered
Malikoundi deposit which is the largest deposit discovered to date on
the property.

Subsequent to the effective date of the resource estimate, assay results
have been received for a further 9,400 metres of diamond drilling
completed on the Boto Gold project to the end of 2013. The drilling
campaign aimed to complete infill drilling on the Boto 4 and Boto 6
deposits, and extend the potential limits of the Malikoundi deposit at
depth and along strike to the north beyond the current resource limits.

The drilling results are provided in Tables 2 through 4 below, and
include the following highlights:

Malikoundi Deposit:

        --  Drillhole DBDD-2158:   8 metres grading 3.72 g/t gold
        --  Drillhole DBDD-2159: 23 metres grading 2.53 g/t gold
            Includes 2 metres grading 16.88 g/t gold
        --  Drillhole DBDD-2171:   4 metres grading 10.67 g/t gold
        --  Drillhole DBDD-2173: 20 metres grading 1.68 g/t gold

Boto 4 Deposit:

        --  Drillhole DBDD-2150: 21 metres grading 1.45 g/t gold
        --  Drillhole DBDD-2151: 17 metres grading 1.84 g/t gold
        --  Drillhole DBDD-2154: 13 metres grading 2.12 g/t gold
        --  Drillhole DBDD-2155: 30 metres grading 1.28 g/t gold

Boto 6 Deposit:

        --  Drillhole DBDD-2165: 23 metres grading 1.03 g/t gold
        --  Drillhole DBDD-2166: 54 metres grading 0.66 g/t gold
        --  Drillhole DBDD-2168: 41 metres grading 0.83 g/t gold

To view Drill Hole Plan Map for the Boto Gold Project, please click here.

Craig MacDougall, Senior Vice President, Exploration for IAMGOLD,
stated, “The ongoing delineation drilling program continues to confirm
the continuity of the defined resources, and more importantly continues
to expand the Malikoundi zone north along strike for a further 300
metres beyond the original estimated resource limits. Our exploration
team continues to target further expansions to this new discovery.”

These new results from the ongoing infill and expansion drilling program
are associated with wide intervals of hydrothermal alteration and
sulphide mineralization in Birimian metasedimentary host rocks. The
northern strike extension of identified gold mineralization at the
Malikoundi deposit was expanded by a further 300 metres in 2013 and
remains open.

Next Steps

The Company’s approved 2014 exploration program for the Boto Gold
project includes 14,500 metres of diamond drilling targeting the
potential northern strike extension of the Malikoundi deposit, and will
support a scoping study currently in progress. Results will be
incorporated into an updated resource model as merited. An additional
9,000 metres of aircore drilling is planned to evaluate several new
exploration targets identified from a recently completed regional
HeliTEM survey over the Boto concession area.

Technical Information and Quality Control Notes

Pitangui Project, Brazil:

SRK has reviewed exploration practices and the resultant database used
to complete the mineral resource estimate reported herein, and has
expressed the opinion that it is satisfied that the work carried out by
IAMGOLD has been conducted in a manner consistent with generally
recognized industry best practices and that the exploration data are
sufficiently reliable for the purpose of supporting a mineral resource
estimate.

Boto Gold Project, Senegal:

The Boto Gold drilling results contained in this news release have been
prepared in accordance with National Instrument 43-101 Standards of
Disclosure for Mineral Projects. The sampling of, and assay data from,
drill core is monitored through the implementation of a quality
assurance – quality control program designed to follow industry best
practice. Drill core (HQ and NQ size) samples are selected by the
IAMGOLD geologists and sawn in half with a diamond saw at the project
site. Half of the core is retained at the site for reference purposes.
Sample intervals are generally one metre in length. Prior to August
2013, samples were analyzed at the ALS Chemex Analytical Laboratory in
Bamako, Mali, using a standard fire assay with a 50 gram charge and an
Atomic Absorption finish. From August 2013 onwards, samples were
prepared at the Veritas Preparation Laboratory in Kedougou, Senegal,
and analyzed using a standard fire assay with a 50 gram charge and an
Atomic Absorption finish at the Veritas Analytical Laboratory in
Abidjan, Côte d’Ivoire.

Qualified Persons

The Pitangui mineral resource estimate was completed by SRK and reported
in accordance with National Instrument 43-101 requirements and CIM
Estimation Best Practice Guidelines. The resource estimate was prepared
by SRK Senior Resource Engineer Dorota El-Rassi, P.Eng., and all
technical work was supervised by SRK Principal Consultant (Resource
Geology) Glen Cole, P.Geo. Ms. El-Rassi and Mr. Cole, who are Qualified
Persons independent of IAMGOLD for the purposes of National Instrument
43-101, have reviewed and approved the contents of this release as it
pertains to the Pitangui project. A supporting NI 43-101 Technical
Report will be posted on SEDAR at www.sedar.com on or before May 24, 2014.

The information in this news release was prepared under the supervision
of Craig MacDougall, P.Geo., Senior Vice President, Exploration for
IAMGOLD. Mr. MacDougall is a Qualified Person as defined by National
Instrument 43-101.

Notes to Investors Regarding the Use of Resources

Cautionary Note to Investors Concerning Estimates of Indicated and
Inferred Resources


This news release uses the term “indicated resources”. We advise
investors that while that term is recognized and required by Canadian
regulations, the United States Securities and Exchange Commission (the
“SEC”) does not recognize it. Investors are cautioned not to assume
that any part or all of mineral deposits in this category will ever be
converted into reserves.

This news release also uses the term “inferred resources”. We advise
investors that while this term is recognized and required by Canadian
regulations, the SEC does not recognize it. “Inferred resources” have a
great amount of uncertainty as to their existence, and great
uncertainty as to their economic and legal feasibility. It cannot be
assumed that all or any part of an inferred mineral resource will ever
be upgraded to a higher category. Under Canadian rules, estimates of
inferred mineral resources may not form the basis of feasibility or
pre-feasibility studies, except in rare cases. Investors are cautioned
not to assume that part or all of an inferred resource exists, or is
economically or legally mineable.

Cautionary Note to U.S. Investors

The SEC limits disclosure for U.S. reporting purposes to mineral
deposits that a company can economically and legally extract or
produce. IAMGOLD uses certain terms in this news release, such as
“measured,” “indicated,” or “inferred,” which may not be consistent
with the reserve definitions established by the SEC. U.S. investors
are urged to consider closely the disclosure in the IAMGOLD Annual
Reports on Forms 40-F. You can review and obtain copies of these
filings from the SEC’s website at http://www.sec.gov/edgar.shtml or by contacting the Investor Relations department.

The Canadian Securities Administrators’ National Instrument 43-101 (“NI
43-101″) requires mining companies to disclose reserves and resources
using the subcategories of “proven” reserves, “probable” reserves,
“measured” resources, “indicated” resources and “inferred” resources.
Mineral resources that are not mineral reserves do not demonstrate
economic viability.

A mineral reserve is the economically mineable part of a measured or
indicated mineral resource demonstrated by at least a preliminary
feasibility study. This study must include adequate information on
mining, processing, metallurgical, economic and other relevant factors
that demonstrate, at the time of reporting, that economic extraction
can be justified. A mineral reserve includes diluting materials and
allows for losses that may occur when the material is mined. A proven
mineral reserve is the economically mineable part of a measured mineral
resource demonstrated by at least a preliminary feasibility study. A
probable mineral reserve is the economically mineable part of an
indicated, and in some circumstances, a measured mineral resource
demonstrated by at least a preliminary feasibility study.

A mineral resource is a concentration or occurrence of natural, solid,
inorganic material, or natural, solid fossilized organic material,
including base and precious metals in or on the Earth’s crust in such
form and quantity and of such a grade or quality that it has reasonable
prospects for economic extraction. The location, quantity, grade,
geological characteristics and continuity of a mineral resource are
known, estimated or interpreted from specific geological evidence and
knowledge. A measured mineral resource is that part of a mineral
resource for which quantity, grade or quality, densities, shape and
physical characteristics are so well established that they can be
estimated with confidence sufficient to allow the appropriate
application of technical and economic parameters, to support production
planning and evaluation of the economic viability of the deposit. The
estimate is based on detailed and reliable exploration, sampling and
testing information gathered through appropriate techniques from
locations such as outcrops, trenches, pits, workings and drill holes
that are spaced closely enough to confirm both geological and grade
continuity. An indicated mineral resource is that part of a mineral
resource for which quantity, grade or quality, densities, shape and
physical characteristics can be estimated with a level of confidence
sufficient to allow the appropriate application of technical and
economic parameters to support mine planning and evaluation of the
economic viability of the deposit. The estimate is based on detailed
and reliable exploration and testing information gathered through
appropriate techniques from locations such as outcrops, trenches, pits,
workings and drill holes that are spaced closely enough for geological
and grade continuity to be reasonably assumed. An inferred mineral
resource is that part of a mineral resource for which quantity and
grade or quality can be estimated on the basis of geological evidence
and limited sampling and reasonably assumed, but not verified,
geological and grade continuity. The estimate is based on limited
information and sampling gathered through appropriate techniques from
locations such as outcrops, trenches, pits, workings and drill holes.
Mineral resources which are not mineral reserves do not have
demonstrated economic viability. Investors are cautioned not to assume
that part or all of an inferred resource exists, or is economically or
legally mineable.

Forward Looking Statement

This news release contains forward-looking statements. All statements,
other than of historical fact, that address activities, events or
developments that the Company believes, expects or anticipates will or
may occur in the future (including, without limitation, statements
regarding expected, estimated or planned gold and niobium production,
cash costs, margin expansion, capital expenditures and exploration
expenditures and statements regarding the estimation of mineral
resources, exploration results, potential mineralization, potential
mineral resources and mineral reserves) are forward-looking statements.
Forward-looking statements are generally identifiable by use of the
words “may”, “will”, “should”, “continue”, “expect”, “anticipate”,
“estimate”, “believe”, “intend”, “plan” or “project” or the negative of
these words or other variations on these words or comparable
terminology. Forward-looking statements are subject to a number of
risks and uncertainties, many of which are beyond the Company’s ability
to control or predict, that may cause the actual results of the Company
to differ materially from those discussed in the forward-looking
statements. Factors that could cause actual results or events to
differ materially from current expectations include, among other
things, without limitation, failure to meet expected, estimated or
planned gold and niobium production, cash costs, margin expansion,
capital expenditures and exploration expenditures and failure to
establish estimated mineral resources, the possibility that future
exploration results will not be consistent with the Company’s
expectations, changes in world gold markets and other risks disclosed
in IAMGOLD’s most recent Form 40-F/Annual Information Form on file with
the United States Securities and Exchange Commission and Canadian
provincial securities regulatory authorities. Any forward-looking
statement speaks only as of the date on which it is made and, except as
may be required by applicable securities laws, the Company disclaims
any intent or obligation to update any forward-looking statement.

About IAMGOLD

IAMGOLD (www.iamgold.com) is a mid-tier mining company with five operating gold mines (including
current joint ventures) on three continents and one of the world’s top
three niobium mines. A solid base of strategic assets in Canada, South
America and Africa is complemented by development and exploration
projects and continued assessment of accretive acquisition
opportunities. IAMGOLD is in a strong financial position with
extensive management and operational expertise.

Please note:

This entire news release may be accessed via fax, e-mail, IAMGOLD’s
website at www.iamgold.com and through CNW Group’s website at www.newswire.ca. All material information on IAMGOLD can be found at www.sedar.com or at www.sec.gov.

Si vous désirez obtenir la version française de ce communiqué, veuillez
consulter le http://www.iamgold.com/French/Home/default.aspx.

     _______________________________________________________________________
    |     Table 2: Boto Gold Project Drilling Results - Malikoundi Deposit  |
    |_______________________________________________________________________|
    |Hole#     |         UTMWGS84Zone29   |AZ |DIP|EOH|From|To |Length|Gold |
    |__________|__________________________|___|___|___|____|___|______|_____|
    |          |Easting|Northing|Elevation|   |   |(m)|(m) |(m)|  (m) |(g/t)|
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2158 |241813 |1379448 |    165  |115|-60|350| 95 |120|   25 |0.95 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |129 |137|   8  |3.72 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |150 |159|   9  |0.98 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |180 |206|   26 |0.83 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |261 |263|   2  |3.16 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2159 |241858 |1379427 |    165  |115|-60|250| 51 |74 |   23 |2.53 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |Including*|       |        |         |   |   |   | 65 |67 |   2  |16.88|
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |118 |128|   10 |0.63 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |208 |212|   4  |1.09 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2160 |241904 |1379406 |    165  |115|-60|200| 15 |19 |   4  |1.02 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   | 86 |89 |   3  |1.86 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   | 97 |99 |   2  |1.26 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |168 |170|   2  |6.23 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2161 |       |        |         |   |   |   |     No significant  |
    |          |       |        |         |   |   |   |      intersection   |
    |__________|_______|________|_________|___|___|___|_____________________|
    |DBDD-2162 |241994 |1379364 |    165  |115|-60|200| 84 |86 |   2  |1.55 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |135 |137|   2  |1.48 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2171 |241730 |1379611 |    165  |115|-60|300|207 |219|   12 |0.63 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |228 |240|   12 |1.28 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |253 |269|   16 |0.92 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |282 |286|   4  |10.67|
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |295 |297|   2  |1.84 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2172 |241775 |1379589 |    165  |115|-60|250|166 |175|   9  |1.24 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |194 |199|   5  |1.81 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |209 |228|   19 |1.17 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |240 |242|   2  |1.68 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2173 |241820 |1379568 |    165  |115|-60|250| 92 |95 |   3  |1.10 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |110 |130|   20 |1.68 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |141 |143|   2  |1.19 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |166 |178|   12 |0.55 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |          |       |        |         |   |   |   |214 |219|   5  |2.68 |
    |__________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2174 |241865 |1379546 |    165  |115|-60|200|54 | 56 |   2  |18.62|
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |151|171 |   20 |1.19 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |DBDD-2175 |241700 |1379758 |    165  |115|-60|350|267|269 |   2  |1.04 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |295|298 |   3  |1.62 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |311|313 |   2  |1.13 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |332|338 |   6  |1.18 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |DBDD-2176 |241745 |1379736 |    165  |115|-60|325|175|177 |   2  |1.32 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |248|250 |   2  |1.15 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |260|272 |   12 |1.15 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |290|296 |   6  |1.21 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |DBDD-2177 |241790 |1379715 |    165  |115|-60|325|128|140 |   12 |2.75 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |229|231 |   2  |1.12 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
    |          |       |        |         |   |   |   |261|263 |   2  |1.47 |
    |__________|_______|________|_________|___|___|___|___|____|______|_____|
     ______________________________________________________________________
    |       Table 3: Boto Gold Project Drilling Results - Boto 4 Deposit   |
    |______________________________________________________________________|
    |Hole#    |         UTMWGS84Zone29   |AZ |DIP|EOH|From|To |Length|Gold |
    |_________|__________________________|___|___|___|____|___|______|_____|
    |         |Easting|Northing|Elevation|   |   |(m)|(m) |(m)|  (m) |(g/t)|
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |    |   |      |     |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2149|241825 |1377333 |    133  |115|-60|250|143 |145|   2  |1.02 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |175 |177|   2  |1.08 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2150|241780 |1377354 |    133  |115|-60|300|142 |144|   2  |1.21 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |188 |190|   2  |4.06 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |201 |217|   16 |1.39 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |238 |259|   21 |1.45 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |    |   |      |     |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2151|241753 |1377249 |    134  |115|-60|300|128 |145|   17 |1.84 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |155 |181|   26 |0.72 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |287 |289|   2  |1.62 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2152|241798 |1377228 |    134  |115|-60|250| 97 |115|   18 |1.42 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |122 |133|   11 |0.83 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |205 |217|   12 |0.58 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |237 |239|   2  |2.99 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2153|241842 |1377207 |    134  |115|-60|250| 36 |38 |   2  |1.46 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   | 55 |57 |   2  |1.74 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   | 75 |79 |   4  |1.45 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |148 |150|   2  |1.13 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2154|241697 |1377219 |    134  |115|-60|350|184 |202|   18 |1.58 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |225 |238|   13 |2.12 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |270 |274|   4  |4.78 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2155|241875 |1377136 |    136  |115|-60|250| 17 |20 |   3  |1.34 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   | 30 |42 |   12 |1.68 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   | 52 |82 |   30 |1.28 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |207 |209|   2  |1.40 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2156|241917 |1377115 |    135  |115|-60|200| 87 |89 |   2  |1.22 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |176 |184|   8  |1.15 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2157|241962 |1377095 |    134  |115|-60|100|     No significant  |
    |         |       |        |         |   |   |   |      intersection   |
    |_________|_______|________|_________|___|___|___|_____________________|
     ______________________________________________________________________
    |       Table 4: Boto Gold Project Drilling Results - Boto 6 Deposit   |
    |______________________________________________________________________|
    |Hole#    |         UTMWGS84Zone29   |AZ |DIP|EOH|From|To |Length|Gold |
    |_________|__________________________|___|___|___|____|___|______|_____|
    |         |Easting|Northing|Elevation|   |   |(m)|(m) |(m)|  (m) |(g/t)|
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |    |   |      |     |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2163|241563 |1375385 |    153  |115|-60|250| 93 |105|   12 |0.55 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |139 |143|   4  |1.11 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2164|241647 |1375347 |    152  |115|-60|300| 16 |28 |   12 |0.74 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   | 56 |59 |   3  |1.24 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |154 |159|   5  |1.08 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |166 |189|   23 |1.03 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |211 |220|   9  |1.68 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |254 |280|   26 |0.71 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |287 |297|   10 |0.70 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2166|241539 |1375339 |    154  |115|-60|250| 98 |152|   54 |0.66 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |203 |215|   12 |1.04 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |222 |241|   19 |1.13 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2167|241627 |1375285 |    153  |115|-60|200|     No significant  |
    |         |       |        |         |   |   |   |      intersection   |
    |_________|_______|________|_________|___|___|___|_____________________|
    |DBDD-2168|241413 |1375289 |    158  |115|-60|300|184 |198|   14 |0.51 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |256 |297|   41 |0.83 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2169|241617 |1375190 |    152  |115|-60|200| 12 |60 |   48 |0.66 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   | 68 |80 |   12 |0.57 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |119 |121|   2  |3.70 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |DBDD-2170|241590 |1375142 |    151  |115|-60|200| 43 |54 |   11 |0.57 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   | 65 |94 |   29 |0.79 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
    |         |       |        |         |   |   |   |136 |138|   2  |1.50 |
    |_________|_______|________|_________|___|___|___|____|___|______|_____|
        --  Drillhole intercepts are calculated using a minimum downhole
            length of 2 meters, a cut-off grade of 0.5 g/t gold, a global
            assay cap of 25 g/t gold and may include up to 5 metres of
            internal dilution.
        --  For brevity, drillhole intercepts with a downhole length of
            less than 10 metres and grading less than 1.0 g/t gold are not
            reported.
        --  Higher grade sub-intervals are highlighted for intervals that
            are equal to or exceed an 8.0 g/t gold cut-off grade using the
            parameters above.
        --  The true widths of intersections are unknown at this time, but
            are interpreted to approximate the reported downhole lengths.

SOURCE IAMGOLD Corporation


Source: PR Newswire



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