Contango Silver & Gold Inc.

09/15/2026 | Press release | Distributed by Public on 09/15/2026 14:31

CONTANGO SILVER & GOLD (Form 8-K)

CONTANGO SILVER & GOLD

Contango Intersects 506 g/t AgEq over 13.90 meters at Torbrit and 807 g/t AgEq over 4.96 meters at North Star Infill and Expansion Drilling

FAIRBANKS, AK - (September 15, 2026) - Contango Silver and Gold Inc. ("Contango" or the "Company") (NYSE American / TSX: CTGO) is pleased to announce initial assay results from the Torbrit and North Star silver deposits as part of the ongoing 2026 infill and expansion diamond drilling program at the Kitsault Valley Project, located in Northwest British Columbia's Golden Triangle. Highlighting these results, systematic step-out drilling has confirmed a mineralized zone connecting the Torbrit and North Star silver deposits. Notable high-grade, primary silver intercepts include 506 g/t AgEq over 13.90 meters in drill hole DV26-480 at Torbrit, and 807 g/t AgEq over 4.96 meters in drill hole DV26-494, located over 300 meters to the southwest at North Star.

Highlights

DV26-480 (Torbrit): 506 g/t AgEq over 13.90 meters, including 881 g/t AgEq over 2.30 meters within a broader mineralized zone of 25.00 meters grading 304 g/t AgEq;
DV26-488 (Torbrit): 272 g/t AgEq over 5.54 meters, and 0.98m of 2,878 g/t AgEq within 2.00 meters of 1,576 g/t AgEq;
DV26-494 (North Star): 807 g/t AgEq over 4.96 meters, including 2,254 g/t AgEq over 1.00 meter; and
DV26-515 (Torbrit): Several zones include an Upper zone (with lens A and B); and a Lower zone: Upper zone grading 33.50 meters of 262 g/t AgEq with lens A grading 436 g/t AgEq over 6.70 meters, and lens B grading 294 g/t AgEq over 17.00 meters including 1,071 g/t AgEq over 1.00 meter; and the Lower zone grading 66.35 meters of 165 g/t AgEq.

Rick Van Nieuwenhuyse, the Company's Chief Executive Officer said, "Infill drilling continues to demonstrate exceptional grade and continuity at Kitsault Valley-delivering 500 to 2,800+ g/t silver values over thick intervals that routinely match or beat our resource estimates. Keep in mind that over 90% of silver equivalent grades are due to the silver content and not base metals which is why Kitsault hosts such exceptional primary silver deposits.

Thanks to exceptional drilling efficiencies on site this season, we've been able to expand our campaign to over 50,000 meters. Crucially, systematic step-out drilling between Torbrit and North

Star has now defined a clear structural link, proving these deposits are part of one unified, interconnected silver system. It's important to note that none of this 2026 drilling is incorporated into our Mineral Resource Estimate update due later this month, meaning these initial results-and those still to come-represent brand-new growth upside that will feed directly into future resource expansion and mine planning. Confirming this mineralized corridor marks a major milestone for the project, laying the foundation to potentially merge two separate deposits into a single, integrated mine plan with shared development infrastructure. We have plenty more assays coming from the 2026 program and I eagerly anticipate the next batch of results."

2026 Kitsault Valley Drill Program

Mobilized in late May 2026 with five diamond drill rigs, the Kitsault Valley program was initially scoped at 40,000 meters but has expanded toward +50,000 meters thanks to exceptional operational efficiencies on site. Drilling has focused on infill and step-out expansion around established mineral resources, as well as testing multiple high-priority regional targets. The campaign covers the entire project footprint, spanning the silver-dominant Dolly Varden Target Area in the south, which includes Torbrit, North Star, Wolf, and the recently defined 470 target, as well as the gold-dominant Homestake Target Area in the north (Figure 1). Assays for the majority of the ongoing 2026 program remain pending and will be reported in batches as results are finalized.

Figure 1. Plan and long sectional view of the Kitsault Valley Project highlighting 2026 Torbrit and North Star drilling area from this release.

The start of this season's drill program focused on the Torbrit and North Star deposits, where drilling has now successfully confirmed these two deposits form a connected mineralized system. Step-out drilling into the gap between the two deposits successfully intersected mineralization, demonstrating the continuity of mineralization below the valley bottom (Figures 2&3). These new step-out intercepts will be integrated into our evolving geological model and will drive a

subsequent Mineral Resource Estimate (MRE) planned for 2027, providing immediate upside on top of our imminent 2026 MRE update.

Exploration Drill Results: Torbrit and North Star

The Torbrit and North Star silver deposits are characterized by barite rich stratiform mineralization overprinted by epithermal veining and brecciation, delivering high-grade silver and localized base metal values. Mineralization across both deposits consists of native silver, pyrargyrite, argentite, silver sulphosalts, argentiferous galena, and sphalerite.

Infill drilling at Torbrit and North Star delivered robust silver and base metal grades while upgrading confidence across wider-spaced areas that were previously modelled based on historic underground drilling from the 1960s. This year to date, 32 drill holes have been completed at Torbrit, with an additional 21 drill holes targeting North Star and the connection zone between the two deposits (Figures 2&3). Drilling remains active with one drill continuing expansion work along the North Star-Torbrit linkage, with 3 additional drills currently turning across the Homestake Target area, newly defined 470 target and Wolf deposit areas. The fifth rig has been demobilized.

This release includes initial assays from 34 holes across the Torbrit and North Star silver deposits, as detailed in Table 1 below. All reported downhole core lengths approximate 80% to 95% of true width, as drilling was oriented as close to perpendicular to the mineralized zones as possible. Assays for the balance of the 2026 program remain pending and will be released in batches as results are validated.

Figure 2. Plan view of the 2026 Torbrit and North Star drilling, including drill holes from this release and pending results shown with lithology. Historic drilling is shown with black drill hole traces.

Rob van Egmond, P.Geo, and the Company's Vice President Exploration - Canada stated, "The initial Torbrit and North Star results improve confidence in the geological model and confirm the interconnectivity of the silver system in the southern portion of the property. Highlighted intercepts demonstrate strong silver dominance, with elemental silver accounting for approximately 90% to 94% of the calculated silver-equivalent grade across both infill and expansion drilling. Standout hits like 881 g/t silver-equivalent over 2.30 meters in DV26-480 and 262 g/t silver-equivalent over 33.50 meters in DV26-515 showcase the exceptional grade and scale of these deposits-frequently featuring exciting mineralogy with visible native silver, pyrargyrite, and coarse argentite overprinted on barite-rich stratiform zones. Crucially, step-out drilling has proven physical continuity across the valley floor between Torbrit and North Star, while infill drilling has successfully validated historic 1960s underground data to solidify structural continuity in our 3D model."

Figure 3. Long-section type Cross-sectional view A-A' of Torbrit with North Star to the west with the mineralized horizon dipping away. Historic underground levels and stopes are shown in grey.

Table 1. Drill hole results from Torbrit and North Star deposit areas

Target

Hole ID

From

To

Total (m)

Ag (g/t)

Pb (%)

Zn (%)

Au (g/t)

AgEQ (g/t)

Torbrit

DV26-476

169.22

193.77

24.55

142

0.28

0.19

0.01

148

including

192.43

193.77

1.34

600

0.75

0.47

0.01

616

DV26-477

165.95

176.02

10.07

197

1.27

0.49

0.01

220

including

175.22

176.02

0.8

344

8.4

0.29

0.01

447

DV26-478

114

126

12

77

0.02

0.05

0.01

78

including

114

116.47

2.47

246

0.04

0.03

0.01

247

135.67

153.88

18.21

30

0.46

0.45

0.01

42

DV26-480

146

171

25

300

0.15

0.18

0.01

304

including

157.1

171

13.9

499

0.24

0.25

0.01

506

including

161.65

163.95

2.3

872

0.31

0.37

0.01

881

DV26-482

N/S

DV26-483

172

184.53

12.53

77

0.16

0.23

0.01

83

including

172

177.8

5.8

149

0.33

0.35

0.01

159

DV26-486

158.18

195.2

37.02

20

0.26

0.24

0.01

27

including

159.18

160.53

1.35

117

2.66

3.62

0.03

205

DV26-487

202.28

205.43

3.15

120

1.43

4.86

0.01

211

DV26-488

156.47

162.01

5.54

232

1.26

1.62

0.02

272

188.75

190.75

2

1566

0.17

0.49

0.01

1576

including

189.77

190.75

0.98

2860

0.28

0.9

0.01

2878

199.5

217.01

17.51

112

0.46

0.31

0.01

123

including

199.5

208.62

9.12

169

0.32

0.2

0.01

176

DV26-491

167.9

174

6.1

87

0.41

0.18

0.01

95

DV26-493

186.7

223.1

36.4

121

0.57

0.29

0.01

133

including

196.3

200.33

4.03

179

3.54

0.09

0.01

222

217.63

223.1

5.47

335

0.13

0.06

0.01

338

DV26-495

N/S

DV26-496

164

167

3

402

0.72

0.29

0.01

415

DV26-497

156.12

168.51

12.39

62

0.13

0.86

0.03

78

including

157.4

158.4

1

315

0.14

1.21

0.05

338

DV26-500

118

155

37

52

0.32

0.83

0.01

69

including

118

127

9

147

0.33

1.39

0.01

173

DV26-502

84.84

138

53.16

98

0.22

0.1

0.01

103

including

101.2

104.2

3

579

1.66

0.18

0.01

602

including

121

138

17

155

0.17

0.1

0.01

159

including

122

123

1

476

0.18

0.11

0.01

480

including

128.6

133

4.4

295

0.3

0.12

0.01

301

DV26-505

140

167

27

43

0.16

0.25

0.02

50

including

140

143

3

142

0.33

0.69

0.02

158

DV26-507

N/S

DV26-510

14.58

24

9.42

250

3.32

2.18

0.01

322

including

14.58

16

1.42

836

16.9

10.25

0.01

1189

including

14.58

21

6.42

320

4.8

3.15

0.01

424

40

43.7

3.7

294

0.27

0.28

0.01

301

72

84.5

12.5

133

1.17

0.19

0.01

149

including

72

73

1

598

2.38

0.28

0.01

630

DV26-515

37.5

71

33.5

244

0.68

0.63

0.01

262

lens A

37.5

44.2

6.7

396

1.57

1.46

0.01

436

including

41

43.2

2.2

728

0.08

0.21

0.01

732

lens B

54

71

17

278

0.66

0.57

0.01

294

including

54

62

8

369

0.79

0.96

0.01

393

including

60

61

1

1060

0.4

0.43

0.01

1071

lower

98.65

165

66.35

161

0.19

0.09

0.01

165

including

108

109.63

1.63

604

0.32

0.42

0.01

614

156.66

165

8.34

641

0.09

0.19

0.01

645

DV26-517

99.6

100

0.4

622

0.01

0.07

0.01

623

125

130.27

5.27

290

1.09

0.99

0.01

318

North Star

DV26-479

300

309.32

9.32

13

0.14

0.45

0.16

31

DV26-484

316.3

317.8

1.5

170

0.91

0.09

0.2

194

321

361

40

2

0.01

0.12

0.01

5

DV26-485

298.8

302.89

4.09

358

0.24

0.67

0.19

382

DV26-489

346.8

352.8

6

19

0.08

2.71

0.02

62

DV26-492

278.8

290

11.2

103

0.37

1.69

0.04

135

290

292.75

2.75

25

0.01

0.06

0.25

41

DV26-494

265.42

270.38

4.96

750

3.45

0.5

0.15

807

including

269.38

270.38

1

2140

7.26

0.3

0.43

2254

DV26-498

256.76

265.22

8.46

121

1.05

2.28

0.01

169

DV26-499

278.7

282.98

4.28

5

0

0.74

0.01

17

DV26-503

N/S

DV26-506

293.83

319.59

25.76

10

0.27

0.51

0.2

33

including

293.83

306.27

12.44

10

0.32

0.44

0.33

40

DV26-511

247.11

264

16.89

20

0.24

0.42

0.24

43

DV26-514

254.67

299.78

45.11

7

0.09

0.76

0.13

27

DV26-516

165.54

172.26

6.72

38

0.11

0.06

0.15

49

* Intervals shown are downhole core length.. Composite intervals are reported as length-weighted averages. N/S means no significant interval selected for reporting. Selected intervals are those interpreted to represent targeted or newly recognized mineralized vein structures and are included because they are relevant to the current geological interpretation. **Silver Equivalents (AgEq) are calculated using metal prices of US$53/oz for Ag, US$0.90/lb. for Pb, US$1.25/lb. for Zn and US$3,500/oz for Au. Metal recoveries applied for the southern silver deposits are 85% for Ag, 85% for Pb, 80% for Zn and 75% for Au. These inputs result in a ratio formula AgEq = Ag + 11.64Pb + 15.22Zn + 58.27Au.

Table 2. Drill collar coordinates for drill holes reported in this release

Target

Hole ID

Easting

Northing

Elevation

Azimuth

Dip

Total Depth (m)

Torbrit

DV26-476

468172

6171425

510

225

-69

198

DV26-477

468058

6171582

462

225

-67

204

DV26-478

468172

6171425

510

225

-62

189

DV26-480

468172

6171425

510

245

-58

171

DV26-482

468172

6171425

510

280

-73

178.8

DV26-483

468058

6171582

462

225

-73

258

DV26-486

468150

6171441

496

45

-85

231

DV26-487

468150

6171441

496

320

-80

267

DV26-488

468058

6171582

462

198

-60

222

DV26-491

468058

6171582

462

190

-70

270

DV26-493

468076

6171518

448

225

-71

231

DV26-495

467807

6171742

347

50

-78

423

DV26-496

468076

6171518

448

220

-78

225

DV26-497

468076

6171518

448

220

-86

243

DV26-500

468075

6171489

433

139

-75

162

DV26-502

468075

6171489

433

225

-62

138

DV26-505

468075

6171489

433

225

-89

171

DV26-507

468021

6171475

393

225

-53

60

DV26-510

468021

6171475

393

45

-85

90

DV26-515

467998

6171518

397

160

-55

165

DV26-517

468011

6171601

446

218

-61

180

North Star

DV26-479

467549

6171226

596

126

-56

354

DV26-484

467549

6171226

596

128

-68

378

DV26-485

467549

6171226

596

125

-48

363

DV26-489

467549

6171226

596

145

-70

393

DV26-492

467623

6171317

548

125

-63

309

DV26-494

467623

6171317

548

128

-48

315.9

DV26-498

467623

6171317

548

132

-54

297

DV26-499

467623

6171317

548

120.5

-47

321

DV26-503

467653

6171356

509

114

-58

417

DV26-506

467653

6171356

509

90

-60

339

DV26-511

467653

6171356

509

113

-63

330

DV26-514

467653

6171356

509

85

-66

348

Torbrit Drill Holes

Drill holes DV26-480 and DV26-515 were drilled at the Torbrit deposit as infill and geological model confirmation.

DV26-480 tested mineralization modelled from 1960s era drilling near the historic underground workings at Torbrit. The drill hole cored mineralization adjacent to historic stopes and ended in mineralization when it broke through into the workings. Mineralization consisted of Torbrit style layered red jasper and barite underlain by low temperature epithermal hot spring type silica/barite

layers and brecciated blocks with native silver, argentite and silver sulphosalts associated with minor galena and sphalerite (Figures 4&5).

Figure 4. Drill core from DV26-480 showing layer sequences including red jasper layers and silica/barite low temperature layers and breccias with native silver, argentite, silver sulphosalts associated with galena and sphalerite mineralization. NQ core size.

Figure 5. Cross sectional view C-C' zoom in of Torbrit deposit showing DV26-480 relative to historic underground workings and modelled mineralized lenses. 2026 drilling highlighted with lithology on trace and historic underground levels and stopes in grey.

Drill hole DV26-515 was drilled to confirm the extent of a number of lenses or layers along the eastern edge of the Torbrit deposit. This hole was drilled along section into the centre of the deposit. The extension of the lenses was confirmed by encountering Torbrit style mineralization within jasper and barite crystal layers with silver sulphosalts and argentite the predominant silver mineralization (Figure 6).

Figure 6: Drill core from DV26-515 at 105 meters depth. Torbrit style mineralization with mm-scale layers of sulfosalts (black) interstitial with jasper (red) and barite (white).

North Star and Connection Drill Holes

Drill holes at the North Star deposit were drilled from surface to intersect the mineralized horizon at a better angle with modern holes for resource confirmation. Drill hole DV26-494 tested up dip of the access adit at North Star and confirmed the thickness and continuity of mineralization (Figures 7&8). Mineralization at North star is base metal rich with increased galena and sphalerite within a barite/silica layer extending distal west from the Torbrit deposit.

Extension drilling confirmed the Torbrit-North Star connection in drill holes DV26-551, 548 and 545 (see Figure 2). Assays are pending for these mineralized zones.

Figure 7: Drill core from DV26-494 at North Star from mineralized zone at 265.42 to 270.38 meters grading 807 g/t AgEq over 4.96 meters. Silver mineralization is hosted in more barite/silica layered and brecciated style.

Figure 8. Cross sectional view B-B' of North Star horizon and drill hole DV26-494 drilled perpendicular to mineralization layers

Contango Silver & Gold Inc. published this content on September 15, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on September 15, 2026 at 20:31 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]