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Press release from PR Newswire

IAMGOLD provides exploration update on Boto Project in Senegal

Tuesday, May 21, 2013

IAMGOLD provides exploration update on Boto Project in Senegal

07:45 EDT Tuesday, May 21, 2013

TSX: IMG    NYSE: IAG

TORONTO, May 21, 2013 /PRNewswire/ - IAMGOLD Corporation ("IAMGOLD" or the "Company") today announced additional drilling results from its 100% owned Boto Gold Project in eastern Senegal, West Africa.  The Company is reporting assay results from 29 diamond drill holes totaling 7,325 metres completed between November 2012 and April 2013.

The results are provided below in the Tables 1 and 2 and include the following highlights:

Boto 2 prospect;

  • Drill-hole DBDD-2126: 42 metres grading 2.16 g/t gold
  • Drill-hole DBDD-2131: 34 metres grading 2.20 g/t gold

Boto 4 prospect;

  • Drill-hole DBDD-2135: 22 metres grading 1.95 g/t gold
  • Drill-hole DBDD-2137: 18 metres grading 2.70 g/t gold
  • Drill-hole DBDD-2138: 29 metres grading 2.08 g/t gold

Craig MacDougall, Senior Vice President, Exploration for IAMGOLD, stated, "The ongoing delineation drilling program continues to return wide intervals with good grades, confirming previous results and further extending the zones drilled.  These encouraging drill results are a direct reflection of the persistence of the exploration team on this project.   I commend them for their hard work and commitment to advance the Boto project.  This current exploration program is designed to support a NI 43-101 compliant resource estimate, which is currently in progress and scheduled for completion during the second quarter."

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 at the Boto 2 and 4 prospects. The potential exists to further expand the lateral and depth extent of identified gold mineralized zones at both prospects. However, northern strike extension of the Boto 4 prospect will be limited by the Falémé River which marks the international border between Senegal and Mali.

Exploration drilling on the Boto project totaled nearly 14,300 metres in 2012. The planned 2013 exploration program includes approximately 11,000 metres of diamond drilling and aims to: 1) continue the delineation drilling program initiated in 2012 to support the completion of the mineral resource estimate; 2) expand existing mineralized zones along strike and at depth; 3) provide drill core composite samples for metallurgical and grinding tests, which are also underway.

Next Steps

The Company's 2013 drilling program will continue until the onset of the annual rainy season which generally persists in the region from July to October. A maiden resource estimate referenced above is being prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101") by RPA Inc., with completion expected in the second quarter of 2013.

Table 1

Boto Project Drilling Results - Boto 2 Prospect
Hole# UTMWGS84Zone29 AZ DIP EOH From To Length Gold
  Easting Northing Elevation     (m) (m) (m) (m) (g/t)  
DBDD-2120 241774 1379246 166 115 -60 300 185 209 24 1.38
              263 274 11 4.53
DBDD-2121 241819 1379225 166 115 -60 300 126 139 13 1.10
              145 157 12 2.33
              163 174 11 3.56
Including*             166 168 2 11.56
              193 199 6 1.94
              235 253 18 1.31
DBDD-2122 241865 1379204 166 115 -60 275 107 122 15 0.99
              131 145 14 2.06
              154 172 18 3.13
Including*             159 161 2 13.98
              259 272 13 7.94
Including*             259 263 4 24.03
DBDD-2123 242000 1379141 166 115 -60 250 102 104 2 1.72
              142 165 23 0.95
Including*             158 160 2 10.03
DBDD-2124 242046 1379120 166 115 -60 250 83 86 3 1.57
              99 114 15 1.34
DBDD-2125 241816 1379337 166 115 -60 300 122 163 41 1.24
Including*             121 123 2 18.65
              169 191 22 1.08
              200 204 4 1.38
              262 267 5 1.54
              274 299 25 1.64
DBDD-2126 241862 1379316 165 115 -60 300 84 86 2 1.98
              97 139 42 2.16
              229 241 12 1.35
              250 264 14 2.21
DBDD-2127 241915 1379289 165 115 -60 250 33 44 11 2.96
              50 61 11 2.01
              74 91 17 0.83
              190 193 3 1.18
              197 199 2 1.30
DBDD-2128 241955 1379273 165 115 -60 250 14 33 19 1.57
DBDD-2129 241999 1379253 165 115 -60 150 No significant intersection
DBDD-2130 242004 1379033 164 115 -60 250 69 71 2 2.94
              100 102 2 2.41
              148 166 18 2.82
DBDD-2131 241733 1379155 166 115 -60 350 250 277 27 0.83
              283 317 34 2.20
              339 341 2 1.11
DBDD-2132 241757 1379089 166 115 -60 350 233 240 7 1.08
              247 265 18 0.85
              293 298 5 3.10

Table 2

Boto Project Drilling Results - Boto 4 Prospect
Hole# UTMWGS84Zone29 AZ DIP EOH From To Length Gold
  Easting Northing Elevation     (m) (m) (m) (m) (g/t)
DBDD-2133 241801 1377637 130 115 -60 350 143 153 10 1.00
              195 197 2 1.10
              234 240 6 1.25
DBDD-2134 241984 1377552 130 115 -60 250 117 119 2 1.86
              136 140 4 4.62
DBDD-2135 242052 1377530 128 115 -60 200 35 37 2 1.05
              50 72 22 1.95
              82 98 16 2.95
DBDD-2136 242055 1377402 130 115 -60 100 13 27 14 1.02
DBDD-2137 242004 1377431 130 115 -60 200 57 75 18 2.70
DBDD-2138 241957 1377450 131 115 -60 250 76 86 10 0.73
              121 132 11 4.79
              157 162 5 2.17
              172 201 29 2.08
              222 237 15 1.21
DBDD-2139 241781 1377531 128 115 -60 350 161 182 21 1.07
              240 243 3 1.47
              274 285 11 0.75
              304 306 2 7.54
DBDD-2140 241758 1377427 131 115 -60 350 159 162 3 1.29
              176 180 4 1.02
              187 208 21 0.87
              216 218 2 1.13
              224 232 8 1.36
              238 241 3 1.21
              258 262 4 1.36
              330 336 6 4.37
DBDD-2141 241928 1377345 131 115 -60 250 39 50 11 0.59
              112 118 6 1.87
              125 140 15 1.10
              146 148 2 3.16
              187 198 11 0.72
DBDD-2142 241973 1377323 130 115 -60 200 7 9 2 1.55
              27 45 18 1.98
              56 85 29 0.56
              99 101 2 1.10
              125 136 11 0.50
DBDD-2143 242020 1377301 131 115 -60 100 23 32 9 3.03
              74 80 6 1.62
              92 95 3 1.97
DBDD-2144 241992 1377198 132 115 -60 100 12 17 5 1.31
              56 64 8 4.03
DBDD-2145 241947 1377217 134 115 -60 200 35 38 3 2.44
              96 111 15 0.91
DBDD-2146 241903 1377236 133 115 -60 250 35 37 2 1.02
              86 92 6 1.60
              174 177 3 2.49
DBDD-2147 241723 1377319 131 115 -60 350 191 197 6 1.55
              243 270 27 0.73
DBDD-2148 241870 1377312 133 115 -60 250 37 47 10 1.07
              86 102 16 0.89
  • Drill hole intercepts are calculated using a minimum down-hole 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.
  • 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 down-hole lengths.

BOTO DRILL HOLE PLAN MAP

The Boto 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.

Technical Information and Quality Control Notes The drilling results contained in this news release have been prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101"). The sampling of, and assay data from, drill core is monitored through the implementation of a quality assurance - quality control (QA-QC) 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 1 metre in length. Samples are analyzed at the ALS Chemex Analytical Laboratory in Bamako, Mali, using a standard fire assay with a 50 gram charge with an Atomic Absorption (AA) finish.

Qualified Persons: The information in this 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.

Cautionary Note to U.S. Investors The United States Securities and Exchange Commission 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 presentation, 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.

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", "outlook", "guidance", "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: changes in the global prices for gold, niobium, copper, silver or certain other commodities (such as diesel, aluminum and electricity); changes in U.S. dollar and other currency exchange rates, interest rates or gold lease rates; risks arising from holding derivative instruments; the level of liquidity and capital resources; access to capital markets, financing and interest rates; mining tax regimes; ability to successfully integrate acquired assets; legislative, political or economic developments in the jurisdictions in which the Company carries on business; operating or technical difficulties in connection with mining or development activities; laws and regulations governing the protection of the environment; employee relations; availability and increasing costs associated with mining inputs and labour; the speculative nature of exploration and development, including the risks of diminishing quantities or grades of reserves; adverse changes in the Company's credit rating; contests over title to properties, particularly title to undeveloped properties; and the risks involved in the exploration, development and mining business.  With respect to development projects, IAMGOLD's ability to sustain or increase its present levels of gold production is dependent in part on the success of its projects.  Risks and unknowns inherent in all projects include the inaccuracy of estimated reserves and resources, metallurgical recoveries, capital and operating costs of such projects, and the future prices for the relevant minerals.  Development projects have no operating history upon which to base estimates of future cash flows.  The capital expenditures and time required to develop new mines or other projects are considerable, and changes in costs or construction schedules can affect project economics.  Actual costs and economic returns may differ materially from IAMGOLD's estimates or IAMGOLD could fail to obtain the governmental approvals necessary for the operation of a project; in either case, the project may not proceed, either on its original timing or at all.

About IAMGOLD

IAMGOLD (www.iamgold.com) is a leading mid-tier gold producer with six operating gold mines (including current joint ventures) on three continents. In the Canadian province of Québec, the Company also operates Niobec Inc., one of the world's top three producers of niobium, and owns a rare earth element resource close to its niobium mine. IAMGOLD is well positioned for growth with a strong financial position and extensive management and operational expertise.  To grow from this strong base, IAMGOLD will advance those projects from its pipeline of exploration and expansion projects that can deliver attractive rates of return. IAMGOLD's growth plans are strategically focused in certain regions in Canada, select countries in South America and Africa.

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.

SOURCE IAMGOLD Corporation

PDF available at: http://stream1.newswire.ca/media/2013/05/21/20130521_C8491_DOC_EN_26923.pdf

For further information: <p> </p> <p> <b>Bob Tait, </b>VP Investor Relations, IAMGOLD Corporation<br/> Tel: (416) 360-4743  Mobile: (647) 403-5520 </p> <p> <b>Laura Young, </b>Director, Investor Relations, IAMGOLD Corporation<br/> Tel: (416) 933-4952 Mobile: (416) 670-3815 </p> <p> Toll-free: 1-888-464-9999  <a href="mailto:info@iamgold.com">info@iamgold.com</a> </p>

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