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    IMG   CA4509131088

IAMGOLD CORPORATION

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IAMGOLD : RELEASES HIGH GRADE INFILL DRILL RESULTS AT THE DIAKHA-SIRIBAYA GOLD PROJECT IN MALI - Form 6-K

11/30/2021 | 07:21am EST

IAMGOLD RELEASES HIGH GRADE INFILL DRILL RESULTS AT
THE DIAKHA-SIRIBAYA GOLD PROJECT IN MALI

Toronto, Ontario, November 30, 2021 - IAMGOLD Corporation ("IAMGOLD" or the "Company") is pleased to announce results from its 2021 exploration infill drilling program completed at the Diakha deposit on its wholly owned Diakha-Siribaya Gold project located in western Mali along the borders with Senegal and Guinea.

Highlights include:

Diamond Drill Holes (refer to Table 1 below)

  • 12 meters ("m") at 9.32 grams per tonne gold ("g/t Au") in drill hole SRD21-284 from 284 m including
    • 3 m at 27.15 g/t Au from 284 m
  • 13 m at 11.20 g/t Au in drill hole SRD21-303 from 277 m including
    • 2 m at 67.98 g/t Au from 279 m
  • 10 m at 11.70 g/t Au in drill hole SRD21-305 from 164 m including
    • 4 m at 27.63 g/t Au from 169 m
  • 17 m at 2.17 g/t Au in drill hole SRD21-300 from 177 m, followed by a separate interval of:
    • 20 m at 5.47 g/t Au from 269 m including
    • 7 m at 11.74 g/t Au from 282 m
  • 20 m at 5.40 g/t Au in drill hole SRD21-308 from 108 m including
    • 1 m at 69.34 g/t Au from 114 m
  • 13 m at 4.12 g/t Au in drill hole SRD21-307 from 224 m including
    • 1 m at 17.40 g/t Au from 225 m and
    • 2 m at 13.40 g/t Au from 233 m
  • 15 m at 3.91 g/t Au in drill hole SRD21-311 from 242 m including
    • 3 m at 13.06 g/t Au from 246 m and
    • 1 m at 11.40 g/t Au from 251 m

Reverse Circulation ("RC") Drill Holes (refer to Table 2 below)

  • 16 m at 14.00 g/t Au in drill hole SRD21-891 from 89 m including
    • 3 m at 41.95 g/t Au from 99 m
  • 20 m at 1.97 g/t Au in drill hole SRD21-883 from 43 m, including
    • 1 m at 21.89 g/t Au from 48 m, followed by a separate interval of:
    • 27 m at 2.12 g/t Au from 75 m including
    • 3 m at 6.52 g/t Au from 76 m and
    • 1m at 21.31 g/t Au from 101 m
  • 12 m at 4.19 g/t Au in drill hole SRD21-889 from 108 m including
    • 2 m at 18.84 g/t Au from 117 m
  • 32 m at 1.97 g/t Au in drill hole SRD21-907 from 88 m including
    • 1 m at 16.40 g/t Au from 89 m
  • 11 m at 4.96 g/t Au in drill hole SRD21-848 from 55 m including
    • 1 m at 39.80 g/t Au from 65 m
  • 24 m at 2.23 g/t Au in drill hole SRD21-882 from 43 m including
    • 2 m at 17.01 g/t Au from 54 m

Craig MacDougall, Executive Vice President, Growth for IAMGOLD, stated: "We are very pleased with the results of our 2021 exploration program, which have helped to demonstrate continuity of mineralization between previously completed drill holes and better delineate the distribution and controls on high grade mineralized structures within the known resource."

"The data from this program will help improve the current deposit model and support the completion of an updated mineral resources estimation as we continue to advance towards our objective of increasing total indicated resources to above 1.5 million ounces."

In 2021, the Company completed a combined 19,952 meters in 131 diamond and RC drill holes with 22,328 assay samples (including QA/QC samples) submitted for analysis. The main objective of the drilling program was to infill and increase confidence in the current resources estimate for the Diakha deposit.

Diakha-Siribaya Gold Project

The Diakha-Siribaya project is wholly-owned by IAMGOLD and consists of eight contiguous exploration permits which cover a total area of 596.5 square kilometres, located in the Kédougou-Kéniéba inlier of the West African Craton region of western Mali along the borders with Senegal and Guinea.

Gold mineralization is hosted within highly prospective, Birimian-aged metasedimentary, volcanic and intrusive rocks proximal to the Senegal-Mali Shear Zone. At Diakha, the largest deposit discovered to date, gold mineralization occurs within an albitized sandstone unit similar to that hosting IAMGOLD's Boto Gold deposit located approximately 10 kilometres to the north along strike.

The current mineral resources estimate for the Diakha deposit (on a 100% basis using a $1,500 per ounce gold price) comprises 15.9 million tonnes of indicated resources averaging 1.20 grams of gold per tonne for 615,300 ounces of gold and 18.2 million tonnes of inferred resources averaging 1.62 grams of gold per tonne for 947,500 ounces (see news releases dated January 30, 2019 and February 17, 2021).

Next Steps

The drilling data from the 2021 exploration program is currently being incorporated into a revised deposit model to support the completion of an updated mineral resources estimate targeted for completion in the first half of 2022.

Figure 1 - Diakha-Siribaya - Diakha deposit drill hole surface plan and highlighted 2021 assays

Page | 2 of 14

Figure 2 - Diakha-Siribaya - Diakha deposit longitudinal section and highlighted 2021 assay results

Table 1 - Diakha Drilling Results - 2021 Diamond Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRD21-275

240663

1369113

158

113

-58

320.0

163.0

165.0

2.0

3.33

196.0

214.0

18.0

1.51

including

201.0

205.0

4.0

3.94

267.0

270.0

3.0

6.54

including

268.0

270.0

2.0

9.04

SRD21-276

240660

1369062

161

115

-52

301.0

134.0

137.0

3.0

0.80

252.0

256.0

4.0

6.98

including

255.0

256.0

1.0

18.57

SRD21-277

240670

1369218

161

115

-59

350.0

152.0

155.0

3.0

17.89

including

153.0

154.0

1.0

50.15

SRD21-278

240622

1369134

157

115

-59

270.0

214.0

223.0

9.0

9.16

including

216.0

217.0

1.0

23.10

including

219.0

223.0

4.0

11.82

SRD21-279

240583

1369100

156

115

-55

323.0

303.0

305.0

2.0

3.10

SRD21-280

240598

1369254

158

115

-61

320.0

277.0

282.0

5.0

3.71

SRD21-281

240586

1369205

158

115

-60

338.1

291.0

294.0

3.0

2.27

SRD21-282

240642

1369293

160

115

-59

295.5

171.0

174.0

3.0

3.54

SRD21-283

240757

1369071

169

115

-58

218.0

143.0

151.0

8.0

8.15

including

144.0

147.0

3.0

10.57

including

148.0

151.0

3.0

10.81

157.0

162.0

5.0

1.33

197.0

207.0

10.0

1.04


Page | 3 of 14


Table 1 - Diakha Drilling Results - 2021 Diamond Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRD21-284

240718

1369254

163

115

-61

325.0

203.0

207.0

4.0

2.26

including

206.0

207.0

1.0

6.20

226.0

233.0

7.0

2.01

including

226.0

227.0

1.0

9.22

239.0

252.0

13.0

1.72

including

250.0

252.0

2.0

8.35

284.0

296.0

12.0

9.32

including

284.0

287.0

3.0

27.15

303.0

305.0

2.0

6.89

SRD21-285

240691

1368948

159

115

-49

240.0

46.0

48.0

2.0

1.21

170.0

183.0

13.0

1.92

including

176.0

180.0

4.0

4.46

198.0

206.0

8.0

1.75

including

200.0

201.0

1.0

4.21

223.0

225.0

2.0

0.55

SRD21-286

240765

1369234

165

115

-60

255.0

23.0

26.0

3.0

0.87

124.0

128.0

4.0

2.20

134.0

149.0

15.0

1.22

including

138.0

139.0

1.0

7.41

217.0

225.0

8.0

1.42

SRD21-287

240684

1368614

157

115

-61

160.0

148.0

151.0

3.0

0.89

SRD21-288

240968

1369139

194

115

-70

200.0

50.0

54.0

4.0

0.55

177.0

186.0

9.0

2.33

including

177.0

179.0

2.0

5.98

196.0

199.0

3.0

0.93

SRD21-289

240794

1368833

166

115

-54

140.0

73.0

75.0

2.0

1.86

112.0

116.0

4.0

0.96

SRD21-290

240875

1369291

170

115

-64

155.0

36.0

40.0

4.0

0.98

66.0

68.0

2.0

0.86

85.0

90.0

5.0

2.73

SRD21-291

240769

1368902

178

115

-50

187.8

61.0

63.0

2.0

1.20

SRD21-292

240934

1369095

203

115

-63

220.0

33.0

52.0

19.0

1.09

SRD21-293

240774

1368954

183

115

-76

207.5

29.0

36.0

7.0

2.75

including

30.0

31.0

1.0

13.62

133.0

150.0

17.0

2.75

including

133.0

134.0

1.0

5.56

including

145.0

146.0

1.0

6.78

SRD21-294

240956

1369031

205

115

-63

181.0

104.0

111.0

7.0

2.36

including

109.0

110.0

1.0

7.31

150.0

168.0

18.0

1.88

including

154.0

158.0

4.0

5.50


Page | 4 of 14


Table 1 - Diakha Drilling Results - 2021 Diamond Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRD21-295

240994

1369347

177

115

-68

169.8

113.0

116.0

3.0

2.55

SRD21-296

240844

1369193

173

115

-59

180.0

89.0

95.0

6.0

0.70

SRD21-297

241004

1369452

175

115

-66

180.0

35.0

37.0

2.0

2.85

52.0

56.0

4.0

0.87

117.0

119.0

2.0

0.98

SRD21-298

240844

1369253

171

115

-51

184.6

95.0

97.0

2.0

1.93

102.0

112.0

10.0

1.18

including

104.0

105.0

1.0

8.55

SRD21-299

240840

1369527

164

115

-60

180.0

1.0

3.0

2.0

0.70

21.0

25.0

4.0

0.70

80.0

90.0

10.0

1.04

123.0

125.0

2.0

1.99

136.0

140.0

4.0

2.51

including

137.0

138.0

1.0

6.00

SRD21-300

240738

1369301

163

115

-58

298.0

58.0

63.0

5.0

1.53

177.0

194.0

17.0

2.17

including

178.0

180.0

2.0

6.40

including

191.0

192.0

1.0

6.85

269.0

289.0

20.0

5.47

including

277.0

278.0

1.0

11.67

including

282.0

289.0

7.0

11.74

294.0

298.0

4.0

0.86

SRD21-301

240754

1369539

161

115

-55

180.0

7.0

10.0

3.0

0.72

75.0

78.0

3.0

1.54

178.0

180.0

2.0

5.23

SRD21-302

240739

1369520

161

115

-64

280.0

30.0

32.0

2.0

0.60

78.0

86.0

8.0

0.63

94.0

96.0

2.0

1.62

104.0

111.0

7.0

0.65

234.0

236.0

2.0

0.73

267.0

271.0

4.0

0.76

SRD21-303

240698

1369321

161

115

-65

366.4

277.0

290.0

13.0

11.20

including

279.0

281.0

2.0

67.98

323.0

333.0

10.0

1.83

including

327.0

328.0

1.0

10.40

350.0

352.0

2.0

1.38

SRD21-304

240651

1369561

158

115

-61

390.7

2.0

5.0

3.0

0.70

60.0

62.0

2.0

0.68

119.0

121.0

2.0

1.89

184.0

204.0

20.0

0.81

208.0

210.0

2.0

1.08

224.0

227.0

3.0

1.53

340.0

344.0

4.0

3.05

350.0

371.0

21.0

1.79

including

353.0

354.0

1.0

22.49


Page | 5 of 14


Table 1 - Diakha Drilling Results - 2021 Diamond Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRD21-305

240735

1369329

162

115

-55

211.8

56.0

59.0

3.0

2.77

including

57.0

58.0

1.0

5.18

164.0

174.0

10.0

11.70

including

169.0

173.0

4.0

27.63

195.0

200.0

5.0

1.22

SRD21-306

240655

1369453

159

115

-62

390.0

228.0

246.0

18.0

0.55

309.0

312.0

3.0

0.63

339.0

341.0

2.0

3.28

SRD21-307

240763

1369453

163

115

-52

247.8

51.0

69.0

18.0

0.60

90.0

92.0

2.0

0.99

100.0

110.0

10.0

1.11

including

107.0

108.0

1.0

5.90

144.0

156.0

12.0

0.76

224.0

237.0

13.0

4.12

including

225.0

226.0

1.0

17.40

including

233.0

235.0

2.0

13.40

SRD21-308

240755

1369322

163

115

-55

184.8

91.0

102.0

11.0

0.58

108.0

128.0

20.0

5.40

including

114.0

115.0

1.0

69.34

143.0

152.0

9.0

1.03

173.0

180.0

7.0

1.33

SRD21-309

240742

1369352

162

115

-58

195.5

45.0

56.0

11.0

0.92

SRD21-310

240776

1369313

164

115

-55

170.0

16.0

18.0

2.0

0.72

76.0

98.0

22.0

2.07

including

76.0

79.0

3.0

8.49

SRD21-311

240735

1369630

161

115

-56

300.0

26.0

31.0

5.0

0.76

83.0

86.0

3.0

3.36

158.0

160.0

2.0

2.29

182.0

186.0

4.0

0.64

242.0

257.0

15.0

3.91

including

246.0

249.0

3.0

13.06

including

251.0

252.0

1.0

11.40

263.0

267.0

4.0

1.44

SRD21-312

240937

1369535

172

115

-45

92.0

28.0

30.0

2.0

2.01

61.0

63.0

2.0

0.63


Page | 6 of 14


Table 1 - Diakha Drilling Results - 2021 Diamond Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRD21-313

240679

1369659

158

115

-61

371.0

13.0

15.0

2.0

1.44

120.0

122.0

2.0

2.72

133.0

135.0

2.0

1.94

142.0

148.0

6.0

2.25

235.0

257.0

22.0

0.59

280.0

285.0

5.0

18.73

304.0

306.0

2.0

6.27

SRD21-314

240848

1369643

162

115

-61

200.0

134.0

140.0

6.0

2.00

including

139.0

140.0

1.0

8.46

SRD21-315

240673

1369711

156

115

-56

360.6

111.0

119.0

8.0

0.62

152.0

154.0

2.0

7.44

250.0

255.0

5.0

8.41

286.0

289.0

3.0

1.20

SRD21-316

240616

1369743

154

114

-59

411.3

166.0

177.0

11.0

1.05

191.0

193.0

2.0

1.08

240.0

243.0

3.0

2.83

SRD21-317

240881

1369672

162

116

-69

180.0

67.0

76.0

9.0

4.22

including

75.0

76.0

1.0

21.25

127.0

130.0

3.0

3.84

140.0

144.0

4.0

1.51

Notes:

  1. The true widths of intersections are unknown at this time, but are interpreted to approximate the reported downhole lengths.
  2. Drillhole intercepts are calculated using a minimum downhole length of two (2) meters, a cut-off grade of 0.5 g/t gold, and may include up to four (4) metres of internal dilution.
  3. Assays are reported uncut, but high grade sub-intervals are highlighted.

Table 2 - Diakha Drilling Results - 2021 RC Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRC21-841

240799

1368401

164

115

-58

108

47.0

49.0

2.0

0.54

97.0

102.0

5.0

0.58

SRC21-842

240818

1368443

162

115

-59

84

37.0

40.0

3.0

1.07

47.0

51.0

4.0

1.18

SRC21-843

240777

1368459

161

115

-59

142

33.0

41.0

8.0

0.99

115.0

124.0

9.0

1.04

SRC21-844

240748

1368410

166

115

-59

120

98.0

100.0

2.0

0.57

SRC21-845

No Significant results

SRC21-846

No Significant results

SRC21-847

240720

1368548

158

115

-53

150

76.0

87.0

11.0

0.98

97.0

99.0

2.0

0.93

140.0

142.0

2.0

1.14


Page | 7 of 14


Table 2 - Diakha Drilling Results - 2021 RC Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRC21-848

240764

1368528

159

115

-54

120

55.0

66.0

11.0

4.96

Including

65.0

66.0

1.0

39.80

80.0

83.0

3.0

0.82

SRC21-849

240730

1368593

158

115

-61

102

57.0

59.0

2.0

0.67

87.0

90.0

3.0

0.57

SRC21-850

No Significant results

SRC21-851

No Significant results

SRC21-852

240535

1368735

155

115

-60

108

72.0

75.0

3.0

0.54

82.0

84.0

2.0

1.39

SRC21-853

240531

1368791

153

115

-60

120

69.0

73.0

4.0

1.40

78.0

80.0

2.0

0.68

85.0

87.0

2.0

2.21

SRC21-854

240572

1368772

153

115

-60

84

56.0

58.0

2.0

1.49

66.0

68.0

2.0

2.86

SRC21-855

240508

1368855

152

115

-60

132

108.0

110.0

2.0

0.87

SRC21-856

240545

1368894

153

115

-60

114

52.0

54.0

2.0

11.41

62.0

68.0

6.0

0.58

SRC21-857

240524

1368962

153

115

-55

126

72.0

79.0

7.0

1.24

101.0

106.0

5.0

0.99

SRC21-858

240690

1368661

157

115

-61

146

137.0

145.0

8.0

1.54

Including

138.0

139.0

1.0

6.02

SRC21-859

240735

1368640

156

115

-58

96

44.0

52.0

8.0

1.02

74.0

78.0

4.0

7.49

Including

77.0

78.0

1.0

20.11

SRC21-860

240749

1368682

153

106

-59

102

32.0

52.0

20.0

0.95

70.0

72.0

2.0

1.80

SRC21-861

No Significant results

SRC21-862

240829

1368595

155

115

-61

78

59.0

74.0

15.0

0.85

SRC21-863

240833

1368650

150

115

-62

72

18.0

21.0

3.0

0.57

SRC21-864

No Significant results

SRC21-865

240832

1368688

148

102

-58

66

23.0

28.0

5.0

1.05

56.0

58.0

2.0

2.05

SRC21-866

240798

1368706

148

102

-60

108

7.0

13.0

6.0

0.80

SRC21-867

240757

1368740

148

115

-60

108

34.0

42.0

8.0

1.12

71.0

75.0

4.0

1.41

SRC21-868

240797

1369300

166

115

-55

138

129.0

131.0

2.0

5.32

SRC21-869

240817

1369289

167

115

-55

120

5.0

7.0

2.0

6.06

89.0

91.0

2.0

1.36

SRC21-870

240798

1369325

166

115

-57

142

29.0

42.0

13.0

0.81

55.0

61.0

6.0

1.24

69.0

84.0

15.0

0.74

102.0

105.0

3.0

4.19

131.0

135.0

4.0

2.58


Page | 8 of 14


Table 2 - Diakha Drilling Results - 2021 RC Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRC21-871

No Significant results

SRC21-872

240850

1369084

186

115

-55

132

46.0

50.0

4.0

4.20

Including

49.0

50.0

1.0

12.80

SRC21-873

240861

1368857

196

115

-69

132

67.0

69.0

2.0

1.61

SRC21-874

240983

1368968

205

115

-61

132

63.0

84.0

21.0

1.17

Including

73.0

74.0

1.0

9.48

SRC21-875

241002

1369013

206

115

-66

132

52.0

56.0

4.0

3.28

SRC21-876

241069

1369034

208

115

-55

72

22.0

25.0

3.0

4.42

SRC21-877

241043

1369105

208

115

-70

124

74.0

81.0

7.0

1.55

SRC21-878

241086

1369085

209

115

-55

66

15.0

19.0

4.0

3.03

SRC21-879

241074

1369199

210

115

-84

126

72.0

74.0

2.0

1.94

88.0

96.0

8.0

0.97

101.0

117.0

16.0

0.82

SRC21-880

241018

1369228

191

115

-63

144

52.0

65.0

13.0

1.26

80.0

85.0

5.0

0.51

SRC21-881

240879

1369345

169

115

-59

132

38.0

41.0

3.0

1.05

57.0

65.0

8.0

6.25

Including

58.0

59.0

1.0

43.34

116.0

119.0

3.0

1.57

SRC21-882

240831

1369370

166

115

-60

120

26.0

34.0

8.0

0.85

43.0

67.0

24.0

2.23

Including

54.0

56.0

2.0

17.01

81.0

87.0

6.0

0.75

102.0

104.0

2.0

3.72

SRC21-883

240837

1369421

166

115

-63

120

17.0

21.0

4.0

1.23

43.0

63.0

20.0

1.97

Including

48.0

49.0

1.0

21.89

75.0

102.0

27.0

2.12

Including

76.0

79.0

3.0

6.52

Including

101.0

102.0

1.0

21.31

SRC21-884

240886

1369395

168

115

-60

132

56.0

58.0

2.0

27.72

84.0

86.0

2.0

0.59

SRC21-885

240990

1369403

173

115

-60

162

113.0

131.0

18.0

1.60

Including

123.0

124.0

1.0

7.58

SRC21-886

241036

1369269

192

115

-55

120

22.0

30.0

8.0

1.05

62.0

70.0

8.0

0.57

90.0

94.0

4.0

0.84

SRC21-887

241042

1369435

179

115

-60

120

39.0

44.0

5.0

0.85

62.0

68.0

6.0

2.10

Including

63.0

64.0

1.0

5.87

116.0

120.0

4.0

1.11


Page | 9 of 14


Table 2 - Diakha Drilling Results - 2021 RC Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRC21-888

240910

1369441

169

115

-61

90

10.0

17.0

7.0

1.09

24.0

45.0

21.0

2.43

Including

30.0

31.0

1.0

8.96

Including

36.0

37.0

1.0

20.34

SRC21-889

240854

1369466

166

115

-60

150

8.0

12.0

4.0

0.80

57.0

63.0

6.0

2.69

Including

60.0

62.0

2.0

6.83

80.0

86.0

6.0

3.30

Including

83.0

84.0

1.0

14.34

108.0

120.0

12.0

4.19

Including

117.0

119.0

2.0

18.84

130.0

147.0

17.0

2.08

Including

144.0

145.0

1.0

8.96

SRC21-890

240836

1369506

164

115

-55

108

3.0

14.0

11.0

1.61

Including

8.0

9.0

1.0

9.24

40.0

42.0

2.0

0.81

52.0

59.0

7.0

0.57

76.0

84.0

8.0

0.61

SRC21-891

240795

1369523

163

115

-55

150

89.0

105.0

16.0

14.00

99.0

102.0

3.0

41.95

SRC21-892

240929

1369653

166

115

-58

126

0.0

2.0

2.0

1.13

9.0

11.0

2.0

0.66

70.0

72.0

2.0

1.16

78.0

82.0

4.0

0.77

86.0

92.0

6.0

0.88

103.0

119.0

16.0

1.03

SRC21-893

241014

1370109

155

115

-55

66

30.0

32.0

2.0

1.67

SRC21-894

240972

1370127

155

115

-55

120

105.0

108.0

3.0

0.93

SRC21-895

240964

1370025

156

115

-56

102

62.0

66.0

4.0

2.54

81.0

85.0

4.0

0.57

SRC21-896

240923

1369873

159

115

-59

84

49.0

51.0

2.0

3.95

68.0

77.0

9.0

1.12

SRC21-897

240824

1370088

157

115

-58

54

2.0

6.0

4.0

0.75

11.0

21.0

10.0

0.63

33.0

47.0

14.0

1.09

SRC21-898

No Significant results

SRC21-899

240836

1369973

160

115

-58

90

1.0

6.0

5.0

0.55

SRC21-900

240827

1369919

161

115

-57

78

0.0

3.0

3.0

0.73


Page | 10 of 14


Table 2 - Diakha Drilling Results - 2021 RC Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRC21-901

No significant results

SRC21-902

240734

1369963

158

115

-60

138

47.0

50.0

3.0

0.89

SRC21-903

240727

1369908

158

115

-58

138

8.0

12.0

4.0

10.24

40.0

45.0

5.0

0.72

113.0

116.0

3.0

0.50

SRC21-904

240508

1369980

148

115

-55

96

18.0

32.0

14.0

1.37

52.0

56.0

4.0

0.81

61.0

66.0

5.0

3.96

Including

62.0

63.0

1.0

15.61

SRC21-905

240792

1369991

160

115

-58

120

0.0

5.0

5.0

0.64

45.0

53.0

8.0

1.06

74.0

76.0

2.0

1.55

SRC21-906

240821

1370028

159

115

-62

78

0.0

9.0

9.0

0.76

SRC21-907

240775

1370050

158

115

-63

120

42.0

44.0

2.0

0.70

82.0

84.0

2.0

1.67

88.0

120.0

32.0

1.97

Including

89.0

90.0

1.0

16.40

SRC21-908

240732

1370069

156

115

-62

60

6.0

8.0

2.0

0.81

SRC21-909

No Significant results

SRC21-910

240471

1370748

141

115

-55

102

52.0

63.0

11.0

1.02

SRC21-911

240509

1370732

141

115

-55

72

21.0

26.0

5.0

1.23

35.0

42.0

7.0

0.61

54.0

59.0

5.0

1.03

SRC21-912

240721

1370133

154

115

-54

72

24.0

27.0

3.0

1.18

SRC21-913

240481

1370636

151

115

-60

100

58.0

61.0

3.0

0.87

74.0

83.0

9.0

0.64

SRC21-914

240687

1370153

151

115

-58

120

6.0

8.0

2.0

1.41

17.0

20.0

3.0

0.76

31.0

37.0

6.0

0.57

58.0

60.0

2.0

0.79

82.0

87.0

5.0

1.18

93.0

96.0

3.0

1.84

SRC21-915

240763

1370169

156

115

-59

102

14.0

16.0

2.0

0.84

SRC21-916

240494

1370690

149

115

-73

108

50.0

60.0

10.0

1.53

Including

51.0

52.0

1.0

7.76

84.0

86.0

2.0

1.99

SRC21-917

240518

1370620

151

115

-59

72

25.0

27.0

2.0

1.23

42.0

51.0

9.0

1.05

SRC21-918

No Significant results

SRC21-919

240567

1370313

142

115

-60

42

0.0

5.0

5.0

0.95

10.0

19.0

9.0

0.88


Page | 11 of 14


Table 2 - Diakha Drilling Results - 2021 RC Drilling Program

Hole No.

UTM WGS84 Zone 29N

AZ

DIP

EOH

From

To

Core
Interval
(1)

Au (2)

Easting

Northing

Elevation

(°)

(°)

(m)

(m)

(m)

(m)

(g/t)

SRC21-920

240717

1370190

151

114

-59

108

19.0

24.0

5.0

0.52

56.0

65.0

9.0

0.90

SRC21-921

No Significant results

SRC21-922

240717

1370190

151

113

-60

84

25.0

27.0

2.0

0.92

42.0

46.0

4.0

1.06

51.0

54.0

3.0

1.18

SRC21-923

240712

1370245

154

114

60

126

34.0

37.0

3.0

0.82

42.0

48.0

6.0

0.60

112.0

116.0

4.0

1.10

SRC21-924

240788

1370268

156

115

-58

60

1.0

4.0

3.0

0.66

10.0

35.0

25.0

0.76

39.0

43.0

4.0

0.58

SRC21-925

No Significant results

SRC21-926

240813

1370309

155

112

-60

42

0.0

10.0

10.0

0.82

SRC21-927

No Significant results

SRC21-928

240802

1370373

155

115

-58

90

53.0

56.0

3.0

0.63

Notes:

  1. The true widths of intersections are unknown at this time, but are interpreted to approximate the reported downhole lengths.
  2. Drillhole intercepts are calculated using a minimum downhole length of two (2) meters, a cut-off grade of 0.5 g/t gold, and may include up to four (4) metres of internal dilution.
  3. Assays are reported uncut, but high grade sub-intervals are highlighted.

Page | 12 of 14

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

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 are forward-looking statements. Forward-looking statements are generally identifiable by, but not limited to, the use of the words "may", "will", "should", "would", "continue", "expect", "expected", "budget", "forecast", "anticipate", "estimate", "believe", "intend", "appear" "plan", "schedule", "guidance", "outlook", "potential", "plans", "targeted", "focused", 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 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, but are not limited to, differences in the mineral content within the material identified as mineral resources or mineral reserves from that predicted, the failure to accurately estimate mineral resources or mineral reserves, unexpected increases in capital expenditures, operating expenditures and exploration expenditures, changes in development or mining plans due to changes in logistical, technical or other factors, 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 at www.sec.gov/edgar.shtml and Canadian securities regulatory authorities at www.sedar.com, which are incorporated herein. 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. The Company disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise except as required by applicable law.

CAUTIONARY NOTE TO U.S. INVESTORS REGARDING DISCLOSURE OF MINERAL RESERVE AND MINERAL RESOURCE ESTIMATES

The mineral resource and reserve estimates contained in this news release have been prepared in accordance with NI 43-101. These standards are similar to those used by the United States Securities and Exchange Commission (the "SEC") Industry Guide No. 7, as interpreted by the SEC staff. However, the definitions in NI 43-101 differ in certain respects from those under Industry Guide 7. Accordingly, mineral resource and reserve information contained in this news release may not be comparable to similar information disclosed by United States companies. Under the SEC's Industry Guide 7, mineralization may not be classified as a "reserve" unless the determination has been made that the mineralization could be economically and legally produced or extracted at the time the reserve determination is made.

As a result of the adoption of amendments to the SEC's disclosure rules (the "SEC Modernization Rules"), which more closely align its disclosure requirements and policies for mining properties with current industry and global regulatory practices and standards, including NI 43-101, and which became effective on February 25, 2019, the SEC now recognizes estimates of "measured mineral resources", "indicated mineral resources" and "inferred mineral resources." In addition, the SEC has amended definitions of "proven mineral reserves" and "probable mineral reserves" in its amended rules, with definitions that are substantially similar to those used in NI 43-101. Issuers must begin to comply with the SEC Modernization Rules in their first fiscal year beginning on or after January 1, 2021, though Canadian issuers that report in the United States using the Multijurisdictional Disclosure System ("MJDS") may still use NI 43-101 rather than the SEC Modernization Rules when using the SEC's MJDS registration statement and annual report forms.

United States investors are cautioned that while the SEC now recognizes "measured mineral resources", "indicated mineral resources" and "inferred mineral resources" under the SEC Modernization Rules, investors should not assume that any part or all of the mineral deposits in these categories will ever be converted into a higher category of mineral resources or into mineral reserves. These terms have a great amount of uncertainty as to their economic and legal feasibility. Under Canadian regulations, estimates of inferred mineral resources may not form the basis of feasibility or pre-feasibility studies, except in limited circumstances.

Investors are cautioned not to assume that any "measured mineral resources", "indicated mineral resources", or "inferred mineral resources" that the Company reports in this news release are or will be economically or legally mineable. Further, "inferred mineral resources" have a great amount of uncertainty as to their existence and as to their economic and legal feasibility. It cannot be assumed that any part or all of an inferred mineral resource will ever be upgraded to a higher category.

QUALIFIED PERSONS, 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").

Philippe Biron, P. Geo., Regional Senior Geologist, West Africa for IAMGOLD responsible for the supervision of the preparation, verification and review of the technical information in this release. Mr. Biron is a "qualified person" (a "QP") for the purposes of NI 43-101 with respect to the technical information being reported on in this release.

The information in this news release was reviewed and approved by Craig MacDougall, P.Geo., Executive Vice President, Growth for IAMGOLD. Mr. MacDougall is a QP for the purposes of NI 43-101. The technical information has been included herein with the consent and prior review of the above noted QPs.

Page | 13 of 14

The sampling of, and assay data from, drill core and RC chips are monitored through the implementation of a quality assurance/quality control program designed to follow industry best practice. Rock chips from RC drilling are collected at the rig site, at one meter intervals, under the direct supervision of IAMGOLD geologists and field technicians. Samples are riffle split to obtain two 3 kilogram samples. One sample is retained for reference purposes and the other is sent for assay. Drill core (HQ and NQ size) samples were selected by the IAMGOLD geologists and sawn in half with a diamond saw at the project site, drill core sample intervals are systematically one meter in length. Half of the core is retained at the site for reference purposes, while the other half is sent to the laboratory for prep and analysis.

The samples were assayed at the SGS Minerals Analytical Laboratory in Bamako, Mali, using a standard fire assay with a 50-gram charge and an Atomic Absorption finish (FAA505). All samples returning values greater than 10.0 grams per tonne of gold were re-assayed using a gravimetric finish (FAG505).

About IAMGOLD

IAMGOLD is a mid-tier gold mining company operating in three regions globally: North America, South America and West Africa. Within these regions the Company is developing high potential mining districts that encompass operating mines and construction, development and exploration projects. The Company's operating mines include Essakane in Burkina Faso, Rosebel (including Saramacca) in Suriname and Westwood in Canada. A solid base of strategic assets is complemented by the Côté Gold construction project in Canada, the Boto Gold development project in Senegal, as well as greenfield and brownfield exploration projects in various countries located in the Americas and West Africa.

IAMGOLD employs approximately 5,000 people. IAMGOLD is committed to maintaining its culture of accountable mining through high standards of Environmental, Social and Governance practices, including its commitment to Zero Harm®, in every aspect of its business. IAMGOLD (www.iamgold.com) is listed on the New York Stock Exchange (NYSE:IAG) and the Toronto Stock Exchange (TSX:IMG) and is one of the companies on the JSI index1.

1 Jantzi Social Index ("JSI"). The JSI is a socially screened market capitalization-weighted common stock index modeled on the S&P/TSX 60. It consists of companies which pass a set of broadly based environmental, social and governance rating criteria.

IAMGOLD Contact Information

Graeme Jennings, Vice President, Investor Relations

Tel: 416 360 4743 | Mobile: 416 388 6883

Philip Rabenok, Manager, Investor Relations

Tel: 416 933 5783 | Mobile: 647 967 9942

Toll-free: 1 888 464 9999

info@iamgold.com

This entire news release may be accessed via fax, e-mail, IAMGOLD's website at www.iamgold.com and through Newsfile's website at www.newsfilecorp.com. 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 www.iamgold.com/French/accueil/default.aspx.

Page | 14 of 14

Disclaimer

IAMGOLD Corporation published this content on 30 November 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 30 November 2021 12:20:04 UTC.


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Net income 2021 -71,8 M - -
Net cash 2021 90,0 M - -
P/E ratio 2021 -17,2x
Yield 2021 -
Capitalization 1 227 M 1 233 M -
EV / Sales 2021 0,98x
EV / Sales 2022 1,44x
Nbr of Employees 5 000
Free-Float -
Chart IAMGOLD CORPORATION
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IAMGOLD Corporation Technical Analysis Chart | MarketScreener
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Technical analysis trends IAMGOLD CORPORATION
Short TermMid-TermLong Term
TrendsBearishNeutralNeutral
Income Statement Evolution
Consensus
Sell
Buy
Mean consensus HOLD
Number of Analysts 12
Last Close Price 2,57 $
Average target price 3,29 $
Spread / Average Target 28,0%
EPS Revisions
Managers and Directors
Daniella Elena Dimitrov President, Chief Executive & Financial Officer
Donald Kinloch Charter Chairman
Bruno Lemelin Regional Vice President-Americas
Sophie HallÚ Senior Manager-Finance & Administration
Timothy R. Snider Independent Director
Sector and Competitors