Large, High-Grade Cesium Discovery Confirmed at Shaakichiuwaanaan, Canada

Published: 2025-04-09 17:01:28 ET PMET.TO

Potentially adding a further critical mineral and valuable by-product to a world-class lithium project

VANCOUVER, BC, April 9, 2025 /CNW/ - April 10, 2025 – Sydney, Australia

Highlights

Darren L. Smith, Patriot Executive and Vice President of Exploration, comments: "With the receipt of overlimit assay results, we have now confirmed a large cesium discovery at Shaakichiuwaanaan, supported by wide and well-mineralized drill intercepts. Cesium mineralization of this scale and grade, often combined with high-grade lithium and tantalum, is exceptionally rare globally and underscores the extraordinary endowment of the mineral system at Shaakichiuwaanaan in high-value critical minerals.

While our primary focus remains steadfast on advancing the CV5 Deposit to production based on its world-class lithium endowment, the discovery of cesium presents a compelling value-add opportunity for the Company. Cesium is a high-value and rare commodity which has the potential to become a meaningful by-product to future lithium operations, complementing our core business."

"Given the strategic importance and scarcity of cesium in global markets - and its growing use in key industrial and specialized applications – this discovery has the potential to significantly enhance stakeholder value and re-affirms Shaakichiuwaanaan as one of the top LCT pegmatite assets in the world. For this reason, the Company intends to further evaluate the cesium opportunity as we advance Shaakichiuwaanan towards development," added Mr. Smith.

Patriot Battery Metals Inc. (the "Company" or "Patriot") (TSX: PMET) (ASX: PMT) (OTCQX: PMETF) (FSE: R9GA) is pleased to announce the results of cesium (Cs) assay overlimit analysis, which reaffirm the discovery of two (2) distinct zones of cesium mineralization at the CV13 Pegmatite. The CV13 Pegmatite forms part of the Company's 100% owned Shaakichiuwaanaan Property (the "Property" or "Project"), located in the Eeyou Istchee James Bay region of Quebec.

The Shaakichiuwaanaan Property hosts a consolidated Mineral Resource Estimate1 ("MRE") of 80.1 Mt at 1.44% Li2O Indicated and 62.5 Mt at 1.31% Li2O Inferred. The CV5 Spodumene Pegmatite, which forms the bulk of the MRE, is accessible year-round by all-season road and is situated approximately 14 km from a major hydroelectric powerline corridor. The CV13 Pegmatite is located <3 km along geological trend from the CV5 Pegmatite, and hosts additional lithium and tantalum resources, as well as recently discovered zones of cesium mineralisation (see news release dated March 2, 2025).

CV13 Pegmatite

The initial discovery of two (2) distinct zones of cesium enrichment at CV13 was first announced in the Company's news release dated March 2, 2025, and was based on drill hole pegmatite intercepts which had returned analytical results for cesium that exceeded the detection limit – >10,000 ppm Cs (i.e., >1% Cs or >1.06% Cs2O) – of the analytical package. With the overlimit analytical results now received, the final grade-width calculations for the intervals >1% Cs2O are reported in this news release (see Figure 1, Figure 2, Figure 3, Figure 4, Table 1, and Table 3).

______________________________

1 Shaakichiuwaanaan (CV5 & CV13) Mineral Resource Estimate (80.1 Mt at 1.44% Li2O and 163 ppm Ta2O5 Indicated, and 62.5 Mt at 1.31% Li2O and 147 ppm Ta2O5 Inferred) is reported at a cut-off grade of 0.40% Li2O (open-pit), 0.60% Li2O (underground CV5), and 0.80% Li2O (underground CV13) with an Effective Date of August 21, 2024 (through drill hole CV24-526). Mineral Resources are not Mineral Reserves as they do not have demonstrated economic viability.

Significant results at CV13 include:

Vega Zone

The largest of the two (2) cesium zones at CV13 is coincident with the high-grade (lithium) Vega Zone (Figure 1) and can be traced through drilling over an extensive area of ~600 m x 400 m, ranging in thickness from 1-2 m to >10 m. The cesium mineralization at the Vega Zone sits ~125 m to 150 m from surface and remains open to the northwest. Additionally, the cesium zone at Vega is commonly accompanied by high-grade lithium and tantalum (Table 1).

Rigel Zone

The newly named "Rigel Zone" is situated coincident with the apex of the structural flexure at CV13 and is estimated through drilling to have a high-grade footprint of approximately 200 m x 80 m at up to ~5 m thick. This zone includes the highest cesium grades reported to date from the Property – 1.1 m at 26.61% Cs2O (CV23-204) and 2.0 m at 22.90% Cs2O (CV23-255) – which imply intervals of near-massive pollucite and represent some of the highest known cesium grades reported globally in recent years.

The Rigel Zone is present at shallow depth (~50 m from surface) and, while it appears to be smaller in scale than the Vega Zone, it also appears to be higher grade. Additionally, similar to Vega, the cesium zone at Rigel may be accompanied by high-grade lithium and tantalum (Table 1).

CV5 Pegmatite

In addition to CV13, the CV5 Pegmatite also returned multiple cesium mineralized intercepts (see Figure 5, Figure 6, Figure 7, Table 2, and Table 3). Initial review indicates a wider distribution of cesium across the pegmatite, with distinct zones less apparent compared to the Vega and Rigel cesium zones at the CV13 Pegmatite. However, given the density of drilling, further review and modelling is required to determine continuity and distinct zonation, especially given that cesium zones are relatively small but very high-value. Drill intercept highlights for cesium at CV5 include:

Zone

Hole ID

From (m)

To (m)

Interval (m)

Cs2O (%)

Li2O (%)

Ta2O5 (ppm)

Comments

Vega

CV23-332

57.8

58.4

0.6

1.07

0.75

Vega

CV23-348

68.6

69.8

1.1

2.74

0.18

123

Vega

CV24-470

131.5

132.9

1.4

3.57

3.12

100

140.1

141.5

1.4

3.16

1.58

143.5

144.9

1.4

2.19

4.82

274

Vega

CV24-492

68.4

69.2

0.8

6.68

0.47

Vega

CV24-498

140.1

141.5

1.5

1.51

1.08

484

147.3

150.0

2.7

4.00

1.67

109

Vega

CV24-507

110.8

116.5

5.7

0.98

1.34

171

incl.

110.8

112.0

1.2

3.03

0.81

328

123.4

128.0

4.6

4.57

2.11

152.8

155.1

2.3

1.33

3.41

101

Vega

CV24-508

102.3

104.1

1.8

0.86

1.39

276

incl.

102.3

103.4

1.1

1.05

1.77

Vega

CV24-510

154.9

160.3

5.5

2.02

1.46

172.0

174.0

2.0

1.51

5.72

133

176.9

178.3

1.5

1.30

5.58

281

204.3

205.7

1.3

6.20

0.93

204

Vega

CV24-513

10.3

11.7

1.5

4.47

0.13

324

Vega

CV24-519

93.1

94.1

1.1

1.65

0.32

167

Some potential lepidolite

Vega

CV24-520

130.0

132.3

2.4

1.73

1.46

117

137.5

148.7

11.1

4.87

2.09

1,116

incl.

137.5

144.6

7.1

7.39

0.96

103

167.6

168.2

0.6

1.49

0.03

388

Vega

CV24-524

144.0

147.5

3.5

1.49

3.61

538

150.6

153.0

2.4

0.98

2.68

533

Vega

CV24-525

98.8

100.5

1.7

5.30

1.45

105.5

111.2

5.7

4.97

0.99

incl.

105.5

108.5

3.0

8.20

1.16

118.0

122.5

4.5

2.50

0.96

121

Vega

CV24-529

128.0

129.5

1.5

1.63

0.75

292

Vega

CV24-539

45.8

47.7

2.0

1.82

0.92

285

Vega

CV24-546

142.4

143.8

1.4

2.13

0.30

217

Vega

CV24-571

155.8

158.8

3.0

2.13

1.49

463

Vega

CV24-579

133.3

142.9

9.6

1.59

2.08

371

incl.

138.5

142.9

4.4

2.34

3.55

354

Vega

CV24-582

136.9

138.5

1.6

1.91

0.12

144.7

149.2

4.5

1.53

0.61

1,054

Some lepidolite (~5-10%)

Vega

CV24-747

205.5

206.8

1.3

2.41

4.58

189

211.5

212.9

1.4

3.54

3.13

303

Vega

CV24-754

142.5

160.5

18.1

2.71

1.89

288

incl.

142.5

149.9

7.4

5.45

1.00

286

Vega

CV24-757

251.9

258.5

6.6

0.87

3.80

148

Vega

CV24-761

124.5

129.0

4.5

4.11

1.36

166

incl.

126.6

127.5

0.8

12.30

1.74

201

137.0

138.5

1.5

1.69

2.51

187

Vega

CV24-771

79.7

80.8

1.2

3.80

0.27

239

Vega

CV24-773

144.5

147.1

2.6

2.52

0.12

154.6

159.0

4.4

1.32

2.30

476

163.6

165.3

1.7

2.14

3.29

188

Vega

CH23-069

2.3

5.3

3.0

9.43

2.80

148

Channel

incl.

3.3

4.3

1.0

22.41

1.63

CV24-446

74.6

76.1

1.5

3.82

0.70

1,258

Adjacent Vega Zone

CV24-538

189.8

190.3

0.5

1.98

0.02

243

Adjacent Vega Zone

CV24-545

202.5

203.2

0.7

2.57

0.01

248

Adjacent Vega Zone

CV24-561

397.8

398.3

0.5

1.41

2.19

215

Adjacent Vega Zone

417.7

418.6

0.8

1.28

0.14

281

Rigel

CV22-084

4.8

5.7

0.9

3.77

0.06

195

Rigel

CV23-191

78.0

79.1

1.1

1.67

4.64

Rigel

CV23-198

58.5

63.0

4.5

3.36

4.19

333

Some lepidolite (~25-30%)

Rigel

CV23-204

50.9

54.0

3.2

10.24

2.89

814

Some lepidolite (up to ~40%)

incl.

50.9

52.0

1.1

26.61

0.23

No lepidolite

Rigel

CV23-213

65.3

66.4

1.1

2.86

2.19

Rigel

CV23-218

78.8

79.5

0.8

1.48

1.77

Rigel

CV23-224

137.3

138.5

1.2

3.90

0.27

133

Rigel

CV23-255

75.0

80.0

5.0

13.32

0.24

incl.

78.0

80.0

2.0

22.90

0.44

Rigel

CV23-271

61.5

67.4

5.9

11.19

1.07

3,261

Some lepidolite (~10-15%)

incl.

64.0

65.0

1.0

22.69

0.48

110

Rigel

CV24-432

83.7

85.6

1.9

1.88

0.56

149

Rigel

CV24-436

38.1

39.6

1.6

4.46

2.78

113

Rigel

CV24-444

28.0

29.5

1.5

6.95

0.33

31.5

32.9

1.4

1.35

2.77

CV23-312

104.0

105.0

1.0

1.34

3.82

North-west of Rigel Zone

(1) All intervals are core length and presented for all pegmatite intervals >1 m and >1% Cs2O. (2) Lepidolite may occur with pollucite, although typically in minor amounts, and may contain some cesium in its structure through element substitution; however, it would be significantly less than pollucite. A mineralogy program is underway to more definitively confirm Cs deportment where lepidolite has been logged.

Hole ID

From (m)

To (m)

Interval (m)

Cs2O (%)

Li2O (%)

Ta2O5 (ppm)

Comments

CV22-030

182.0

184.0

2.0

1.03

1.61

114

CV22-036

236.3

237.1

0.8

1.92

1.35

CV22-042

208.4

209.4

1.0

1.58

0.37

255.5

257.5

2.0

1.69

4.66

154

Some lepidolite (~5%)

CV22-059

90.0

91.0

1.0

3.86

0.24

CV22-064

161.5

162.5

1.0

1.30

2.61

123

193.5

194.5

1.0

1.17

3.41

186

CV22-065

35.0

36.0

1.0

2.27

0.19

CV22-068

22.0

23.0

1.0

1.56

0.39

217

CV22-070

169.0

170.0

1.0

1.18

2.50

176.3

177.3

1.0

1.10

0.30

190

181.3

182.3

1.0

1.00

3.16

120

CV22-072

165.0

166.0

1.0

1.13

1.73

549

CV22-075

130.0

131.0

1.0

3.11

1.00

CV22-083

268.0

270.0

2.0

1.06

4.87

205

CV23-107

310.0

312.0

2.0

1.01

5.54

564

325.0

326.1

1.1

1.11

2.95

190

CV23-117

190.0

200.3

10.4

1.30

1.77

240

incl.

192.0

196.0

4.0

2.02

2.06

341

CV23-121

267.0

267.8

0.8

4.32

4.62

273.2

274.8

1.6

1.05

4.08

160

CV23-132

192.0

193.0

1.0

5.59

2.90

195.7

196.7

1.0

1.00

3.55

149

248.5

249.3

0.8

1.02

4.68

514

CV23-160A

89.8

90.7

0.9

1.01

4.48

198.1

199.2

1.0

2.04

1.93

109

CV23-165

430.4

431.2

0.8

1.04

1.22

292

CV23-172

330.9

332.9

2.0

2.24

1.69

300

incl.

330.9

331.6

0.7

5.31

0.59

136

CV23-176

167.0

168.2

1.1

1.24

5.17

138

CV23-177

241.5

242.5

1.0

1.67

1.78

326

CV23-181

225.0

226.0

1.0

1.22

3.25

819

264.5

266.5

2.0

0.90

4.80

278

incl.

265.5

266.5

1.0

1.21

5.39

286

278.5

279.3

0.8

1.23

3.09

900

297.5

298.5

1.0

3.46

0.25

247

CV23-182

158.4

159.4

1.0

1.71

0.40

173

CV23-184

207.8

209.9

2.1

2.23

2.73

170

incl.

207.8

208.8

1.0

3.93

3.05

173

212.0

213.0

1.0

2.96

2.52

145

216.0

217.0

1.1

0.98

1.81

CV23-185

100.8

101.8

1.0

1.02

3.09

193

CV23-190

105.0

106.0

1.0

1.46

2.09

433

CV23-201

265.3

268.2

2.9

4.11

0.89

333

Some lepidolite (~5%)

CV23-205

88.1

88.9

0.8

4.10

1.97

CV23-208

199.0

201.0

2.1

3.88

3.69

193

208.7

209.9

1.3

1.36

4.39

213.2

215.3

2.1

1.18

2.28

110

CV23-211

244.8

246.8

2.0

0.76

3.93

188

incl.

244.8

245.8

1.0

1.01

3.41

241

CV23-219

109.5

111.5

2.0

5.24

3.50

187

194.6

195.6

1.0

1.57

2.11

CV23-223

285.0

287.1

2.1

1.17

4.12

231

CV23-241

166.2

169.2

2.9

0.88

2.89

426

Some potential lepidolite

186.2

187.1

0.9

2.36

3.21

263

CV23-272A

115.5

117.2

1.7

3.96

3.30

1097

348.8

349.8

1.0

1.12

0.77

138

CV23-285

360.2

361.5

1.3

1.03

4.24

107

CV23-298

88.6

90.8

2.2

1.43

2.97

121

CV23-331

77.9

79.9

2.0

1.08

2.57

150

CV23-364

264.1

265.0

0.9

3.32

0.67

390

268.1

269.3

1.3

1.91

3.12

492

CV24-373

119.6

124.2

4.6

0.90

0.75

460

incl.

121.4

124.2

2.8

1.22

0.59

668

CV24-374

243.6

245.2

1.6

1.10

1.29

532

259.5

261.0

1.5

0.97

3.49

CV24-386

496.0

497.4

1.4

1.07

2.12

CV24-401A

326.5

327.8

1.3

1.04

4.16

111

CV24-404

276.5

284.0

7.5

1.29

3.85

200

incl.

277.5

279.0

1.5

3.90

3.93

143

CV24-414

333.5

339.3

5.9

1.26

2.40

590

incl.

336.5

338.0

1.5

3.29

1.35

346

CV24-424

154.5

156.1

1.6

1.16

1.77

446

Some lepidolite (~5-10%)

CV24-441

167.7

169.2

1.6

1.78

2.78

CV24-479

231.2

232.1

0.9

1.37

2.87

753

Some lepidolite (~5%)

CV24-502

271.3

272.6

1.3

1.02

2.59

283

CV24-503

402.7

406.4

3.6

1.89

0.64

141

CV24-517

297.6

298.9

1.3

1.40

0.12

222

301.3

302.8

1.5

2.42

0.28

CV24-586

133.4

135.4

2.0

0.89

4.25

120

CV24-607

198.8

200.0

1.2

1.72

0.40

131

CV24-613

182.4

183.7

1.3

1.29

0.33

337

CV24-616

276.6

281.0

4.4

1.18

1.80

181

CV24-627

166.1

166.9

0.8

13.04

1.79

205

CV24-636

373.5

375.1

1.6

1.61

0.78

164

CV24-639

92.7

94.0

1.3

1.39

0.90

871

CV24-651

59.5

68.5

9.0

1.20

2.02

194

incl.

61.0

62.5

1.5

5.03

2.22

219

82.5

84.0

1.5

0.99

2.28

137

91.1

94.2

3.1

0.85

2.64

117

CV24-695

234.4

237.0

2.6

1.59

0.89

183

CV24-714

332.5

334.0

1.5

1.70

3.31

CV24-739

94.0

95.5

1.5

1.37

1.84

CV24-742

429.2

434.7

5.6

0.73

5.86

229

incl.

430.7

432.4

1.7

1.27

5.67

453

MINERALOGY AND GEOLOGICAL MODELLING

Pollucite, the principal and preferred ore mineral for cesium, has been identified by XRD mineralogical analysis at Shaakichiuwaanaan and is interpreted to be the primary source of the cesium enrichment at the Property based on cesium grades and logging. The high-grade cesium intercepts indicate that semi-massive to massive pollucite is present, especially in the Rigel Zone where several 10% to 20+% Cs2O intercepts are present. A mineralogical program focused on the Vega and Rigel cesium zones is underway to confirm the presence and quantitative abundance of pollucite, and to a lesser extent lepidolite where present.

With the overlimit assays for cesium now received, the Company is actively geologically modelling the Vega and Rigel cesium zones, both within the wider pegmatite geological model. Additionally, cesium will be added to the block model to further assess the potential of each zone.

In the same way that the Company's tantalum resource has the potential to be a valuable by-product, the identification of significant cesium mineralization at CV13 presents an opportunity to further evaluate the potential of cesium as a marketable by-product, which could complement the Company's lithium-focused development strategy and add to the suite of critical minerals that could be produced at Shaakichiuwaanaan. As the Feasibility Study for CV5 progresses for its lithium operation, the Company will assess the potential for a cesium resource at Shaakichiuwaanaan and its implications for future exploration and development.

ABOUT CESIUM – EXTREMELY RARE CRITICAL METAL

Cesium (Cs) is a specialty metal and is listed as a critical and strategic mineral by Canada, the province of Quebec (Canada), Japan, and the United States. The principal use of cesium, which is almost exclusively recovered (in its primary form) from the mineral pollucite, is in the form of cesium formate brine. Due to its high-density, low toxicity, biodegradable nature, and recoverability, cesium is used to support the completion of oil and gas wells at high pressure and temperature.

Cesium is also used in atomic clocks, GPS, aircraft guidance, and telecommunications. Its compounds have various applications: cesium carbonate in fuel cells, cesium chloride in chemistry and nuclear medicine, cesium hydroxide in batteries, cesium iodide in X-ray equipment, cesium nitrate in pyrotechnics and scintillation counters, and cesium sulfates in water treatment and scientific instruments. Cesium pricing varies based on its end-product form and purity; however, in its refined form, cesium metal (Cs >99.5%) is a high value commodity similar to gold and currently trades around US$2,550/oz (excluding VAT, Source – Shanghai Metal Markets).

Mineral deposits of cesium (pollucite) are extremely rare globally and represent the most fractionated component of LCT pegmatite systems, which are effectively the only primary source of cesium globally. Economic deposits of cesium are typically on the scale of <10 kt to 350,000 kt in size and supported by drill intercepts of typically less than 3 to 10 m (core length). This compares to lithium pegmatite deposits that typically range in the millions of tonnes (<10 Mt and rarely over 100 Mt) in size and are supported by much thicker drill intercepts.

Examples of the few current/past producing mines include Tanco (Canada), Bikita (Zimbabwe), and Sinclair (Australia). Australia's first commercial cesium mine, Sinclair, extracted its last cesium in 2019.

Hole ID

Substrate

Total Depth (m)

Azimuth (°)

Dip (°)

Easting

Northing

Elevation (m)

Core Size

Cluster

CV22-084

Land

247.8

200

-80

565010.3

5927857.6

398.5

CV13

CV23-191

Land

308.2

170

-45

565125.9

5928034.9

432.4

CV13

CV23-198

Land

98.0

140

-80

565126.2

5928036.0

432.4

CV13

CV23-204

Land

262.9

130

-80

565057.6

5927954.3

419.2

CV13

CV23-213

Land

209.0

200

-85

564876.6

5927915.3

409.7

CV13

CV23-218

Land

254.1

200

-45

564841.3

5927978.6

415.4

CV13

CV23-224

Land

308.0

200

-45

564748.9

5928008.0

414.1

CV13

CV23-255

Land

131.2

-45

564936.2

5927944.4

417.7

CV13

CV23-271

Land

149.2

110

-75

565068.5

5927999.1

429.0

CV13

CV23-312

Land

149.0

200

-90

564373.8

5928148.9

408.1

CV13

CV23-332

Land

427.9

140

-45

565421.2

5928393.4

405.5

CV13

CV23-348

Land

386.0

140

-90

565420.9

5928393.8

405.3

CV13

CV24-432

Land

278.0

200

-90

564895.9

5928117.1

426.3

CV13

CV24-436

Land

220.9

200

-60

564799.1

5928146.2

422.6

CV13

CV24-444

Land

248.0

200

-90

564799.0

5928146.2

422.6

CV13

CV24-446

Land

286.6

140

-90

565514.5

5928211.3

412.6

CV13

CV24-470

Land

281.2

320

-80

565430.9

5928494.3

393.9

CV13

CV24-492

Land

290.4

140

-45

565697.4

5928512.1

385.7

CV13

CV24-498

Land

218.0

140

-45

565467.1

5928559.6

387.9

CV13

CV24-507

Land

187.0

-90

565466.6

5928560.1

387.7

CV13

CV24-508

Land

152.0

140

-45

565710.4

5928599.6

382.2

CV13

CV24-510

Land

239.0

270

-55

565458.5

5928561.1

387.8

CV13

CV24-513

Land

171.2

320

-75

565707.2

5928604.4

381.9

CV13

CV24-519

Land

248.0

140

-45

565599.7

5928537.4

385.4

CV13

CV24-520

Land

243.7

320

-60

565459.7

5928564.3

387.4

CV13

CV24-524

Land

209.0

-60

565464.9

5928560.5

387.7

CV13

CV24-525

Land

161.0

320

-75

565596.8

5928540.8

385.1

CV13

CV24-529

Land

395.0

-90

565280.0

5928735.1

388.1

CV13

CV24-538

Land

370.2

130

-60

565631.2

5928931.1

403.7

CV13

CV24-539

Land

305.0

-65

565279.8

5928735.6

388.3

CV13

CV24-545

Land

311.0

230

-50

565627.9

5928929.8

403.2

CV13

CV24-546

Land

385.3

260

-65

565279.3

5928733.5

388.3

CV13

CV24-561

Land

443.1

-65

565107.0

5928411.2

418.7

CV13

CV24-571

Land

236.1

-65

565030.0

5928630.0

399.6

CV13

CV24-579

Land

215.0

-90

565030.0

5928630.0

399.6

CV13

CV24-582

Land

227.2

-65

565030.0

5928630.0

399.6

CV13

CV24-747

Land

281.0

-60

565266.8

5928409.4

412.5

CV13

CV24-754

Land

235.9

280

-65

565288.0

5928612.6

390.0

CV13

CV24-757

Land

305.3

-45

565269.4

5928408.3

412.8

CV13

CV24-761

Land

227.1

-90

565289.2

5928610.8

390.0

CV13

CV24-771

Land

164.3

-90

565267.5

5928407.2

413.1

CV13

CV24-773

Land

200.0

-55

565291.6

5928615.0

389.7

CV13

CH23-069

Land

6.8

-36

565393.2

5928283.7

418.1

n/a

CV13

CV22-030

Ice

258.0

158

-45

570385.1

5930855.6

372.8

CV5

CV22-036

Land

334.8

158

-45

570041.9

5930778.2

379.9

CV5

CV22-042

Land

393.0

158

-65

571487.1

5931201.7

379.1

CV5

CV22-059

Water

352.9

158

-45

570300.2

5930796.4

373.2

CV5

CV22-064

Water

340.7

158

-53

570199.3

5930782.3

373.2

CV5

CV22-065

Land

242.0

158

-45

570331.7

5930722.3

381.7

CV5

CV22-068

Land

233.0

158

-45

569930.0

5930522.4

378.2

CV5

CV22-070

Water

297.4

158

-45

570118.7

5930731.4

373.2

CV5

CV22-072

Water

404.0

158

-45

570080.9

5930689.0

373.2

CV5

CV22-075

Water

372.4

158

-45

569987.6

5930639.4

373.7

CV5

CV22-083

Land

440.0

158

-65

571660.9

5931296.4

379.5

CV5

CV23-107

Land

428.2

158

-65

572027.0

5931475.3

374.5

CV5

CV23-117

Land

566.1

158

-75

571865.9

5931434.7

375.7

CV5

CV23-121

Land

454.7

158

-48

571782.1

5931402.9

377.0

CV5

CV23-132

Land

374.0

158

-49

571068.0

5931148.3

374.7

CV5

CV23-160A

Land

443.0

158

-45

569567.5

5930470.9

380.4

CV5

CV23-165

Land

555.1

165

-60

572647.7

5931669.8

382.4

CV5

CV23-172

Land

404.0

158

-45

569479.9

5930448.2

384.1

CV5

CV23-176

Land

434.0

158

-45

569388.0

5930399.5

386.2

CV5

CV23-177

Ice

394.7

158

-45

571453.4

5931292.5

373.0

CV5

CV23-181

Ice

354.0

158

-46

571316.2

5931230.0

372.9

CV5

CV23-182

Land

369.0

158

-45

569295.1

5930361.6

389.4

CV5

CV23-184

Land

417.4

158

-45

569198.6

5930332.0

392.7

CV5

CV23-185

Ice

425.0

158

-60

571453.3

5931292.7

372.9

CV5

CV23-190

Land

303.3

338

-45

569596.9

5930277.1

382.2

CV5

CV23-201

Land

385.8

158

-45

569015.1

5930242.6

390.3

CV5

CV23-205

Land

353.0

158

-60

569015.0

5930242.8

390.2

CV5

CV23-208

Land

368.0

158

-45

568937.2

5930165.2

391.0

CV5

CV23-211

Land

425.0

158

-60

568937.1

5930165.5

391.0

CV5

CV23-219

Land

380.1

158

-45

568848.3

5930136.9

394.8

CV5

CV23-223

Land

428.0

158

-60

568848.3

5930137.2

394.9

CV5

CV23-241

Water

418.9

158

-62

570172.4

5930717.8

372.6

CV5

CV23-272A

Water

410.2

158

-45

570328.8

5930856.6

372.8

CV5

CV23-285

Water

469.9

158

-60

570328.4

5930856.8

372.8

CV5

CV23-298

Water

440.1

158

-64

570449.3

5930831.3

372.7

CV5

CV23-331

Land

423.0

158

-45

568415.4

5929988.0

395.9

CV5

CV23-364

Land

401.0

158

-65

568370.8

5929962.2

392.6

CV5

CV24-373

Land

479.2

160

-45

569832.6

5930629.6

373.0

CV5

CV24-374

Land

470.0

158

-46

570693.3

5931027.8

373.3

CV5

CV24-386

Land

552.6

158

-58

571388.7

5931175.9

376.5

CV5

CV24-401A

Land

626.1

158

-58

572056.2

5931528.9

373.1

CV5

CV24-404

Land

668.2

162

-59

571931.0

5931431.7

377.3

CV5

CV24-414

Land

425.0

158

-45

569516.5

5930473.0

383.8

CV5

CV24-424

Land

389.0

158

-53

569615.3

5930495.5

378.1

CV5

CV24-441

Ice

342.2

158

-65

571004.7

5931058.3

372.0

CV5

CV24-479

Land

467.1

-55

570355.0

5930476.9

379.2

CV5

CV24-502

Land

476.5

145

-52

570360.1

5930766.7

374.0

CV5

CV24-503

Land

533.1

160

-45

570305.6

5930884.3

372.1

CV5

CV24-517

Land

428.1

152

-56

570402.3

5930773.8

374.1

CV5

CV24-586

Land

395.9

156

-45

568872.3

5930201.4

390.1

CV5

CV24-607

Land

236.0

156

-45

569093.9

5930179.0

398.0

CV5

CV24-613

Water

364.9

156

-62

570030.5

5930662.8

373.4

CV5

CV24-616

Land

398.1

156

-45

569100.9

5930296.8

389.9

CV5

CV24-627

Water

394.7

156

-50

570030.9

5930662.0

372.9

CV5

CV24-636

Land

537.3

155

-50

570159.1

5930879.4

381.2

CV5

CV24-639

Land

194.0

355

-60

569682.3

5930336.1

382.1

CV5

CV24-651

Land

289.9

161

-75

569598.8

5930402.1

382.0

CV5

CV24-695

Land

343.9

310

-70

569965.8

5930425.6

377.0

CV5

CV24-714

Land

449.1

159

-51

571947.9

5931540.8

380.9

CV5

CV24-739

Land

401.0

158

-55

568598.9

5930071.1

388.9

CV5

CV24-742

Land

509.8

188

-47

572565.1

5931727.7

373.7

CV5

(1) Coordinate system NAD83 / UTM zone 18N; (2) Azimuths and dips presented are those 'planned' and may vary off collar/downhole. (2) All holes are diamond drill except for CH23-069, which is a channel.

Quality Assurance / Quality Control (QAQC)

A Quality Assurance / Quality Control protocol following industry best practices was incorporated into the program and included systematic insertion of quartz blanks and certified reference materials (Li focus) into sample batches at a rate of approximately 5% each. Additionally, analysis of pulp-split sample duplicates was completed to assess analytical precision, and external (secondary) laboratory pulp-split duplicates were prepared at the primary lab for subsequent check analysis and validation.

All samples collected were shipped to SGS Canada's laboratory in Val-d'Or, QC, or Radisson, QC, for sample preparation (code PRP90 special) which includes drying at 105°C, crush to 90% passing 2 mm, riffle split 250 g, and pulverize 85% passing 75 microns. The pulps were shipped by air to SGS Canada's laboratory in Burnaby, BC, where the samples were homogenized and subsequently analyzed for multi-element (including Li, Cs, and Ta) using sodium peroxide fusion with ICP-AES/MS finish (codes GE_ICP91A50 and GE_IMS91A50).

Overlimits for cesium are requested when the analytical result exceeds the upper detection limit (10,000 ppm Cs) of the GE_ICP91A50 and GE_IMS91A50 analytical packages. The overlimit package used for cesium is either GC_AAS49C – acid digestion for alkaline elements or GC_XRF76V – borate fusion XRF. Both cesium overlimit packages report Cs in %.

Qualified/Competent Person

The information in this news release that relates to exploration results for the Shaakichiuwaanaan Property is based on, and fairly represents, information compiled by Mr. Darren L. Smith, M.Sc., P.Geo., who is a Qualified Person as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects, and member in good standing with the Ordre des Géologues du Québec (Geologist Permit number 01968), and with the Association of Professional Engineers and Geoscientists of Alberta (member number 87868). Mr. Smith has reviewed and approved the technical information in this news release.

Mr. Smith is an Executive and Vice President of Exploration for Patriot Battery Metals Inc. and holds common shares, Restricted Share Units (RSUs), and Performance Share Units (PSUs) in the Company.

Mr. Smith has sufficient experience, which is relevant to the style of mineralization, type of deposit under consideration, and to the activities being undertaken to qualify as a Competent Person as described by the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code). Mr. Smith consents to the inclusion in this news release of the matters based on his information in the form and context in which it appears.

About Patriot Battery Metals Inc.

Patriot Battery Metals Inc. is a hard-rock lithium exploration company focused on advancing its district-scale 100%-owned Shaakichiuwaanaan Property (formerly known as Corvette) located in the Eeyou Istchee James Bay region of Quebec, Canada, which is accessible year-round by all-season road and is proximal to regional powerline infrastructure. The Shaakichiuwaanaan Mineral Resource1, which includes the CV5 & CV13 spodumene pegmatites, totals 80.1 Mt at 1.44% Li2O Indicated, and 62.5 Mt at 1.31% Li2O Inferred, and ranks as the largest lithium pegmatite resource in the Americas, and the 8th largest lithium pegmatite resource in the world.

A Preliminary Economic Assessment ("PEA") was announced for the CV5 Pegmatite August 21, 2024, and highlights it as a potential North American lithium raw materials powerhouse. The PEA outlines the potential for a competitive and globally significant high-grade lithium project targeting up to ~800 ktpa spodumene concentrate using a simple Dense Media Separation ("DMS") only process flowsheet.

For further information, please contact us at [email protected] or by calling +1 (604) 279-8709, or visit www.patriotbatterymetals.com. Please also refer to the Company's continuous disclosure filings, available under its profile at www.sedarplus.ca and www.asx.com.au, for available exploration data.

This news release has been approved by the Board of Directors.

"KEN BRINSDEN"

Kenneth Brinsden, President, CEO, & Managing Director

Disclaimer for Forward-looking Information

This news release contains "forward-looking statements" within the meaning of applicable securities laws and other statements that are not historical facts. Forward-looking statements are included to provide information about management's current expectations and plans that allow investors and others to have a better understanding of the Company's business plans and financial performance and condition.

All statements other than statements of historical facts are forward-looking statements that involve risks and uncertainties. Forward-looking statements are typically identified by words such as "potentially adding", "advancing to production", "opportunity", "to become", "growing", "enhance", "intends to", "further", "underway", "will" and similar words or expressions. Forward-looking statements in this release include, but are not limited to, statements on the Feasibility Study and the potential of cesium at Shaakichiuwaanaan as a marketable by-product.

Forward-looking statements are based upon certain assumptions and other important factors that, if untrue, could cause the actual results, performance or achievements of the Company to be materially different from future results, performance or achievements expressed or implied by such statements. There can be no assurance that such statements will prove to be accurate. Key assumptions upon which the Company's forward-looking information is based include, without limitation, that proposed exploration and mineral resource estimate work on the Property will continue as expected, the accuracy of reserve and resource estimates, the classification of resources between inferred and indicated and the assumptions on which the reserve and resource estimates are based, long-term demand for spodumene supply, and that exploration and development results continue to support management's current plans for Property development and expectations for the Project.

Readers are cautioned that the foregoing list is not exhaustive of all factors and assumptions which may have been used. Forward-looking statements are also subject to risks and uncertainties facing the Company's business, any of which could have a material adverse effect on the Company's business, financial condition, results of operations and growth prospects. Readers are directed to carefully review the detailed risk discussion in the Company's most recent Annual Information Form filed on SEDAR+, which discussion is incorporated by reference in this news release, for a fuller understanding of the risks and uncertainties that affect the Company's business and operations.

Although the Company believes its expectations are based upon reasonable assumptions and has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that forward-looking information will prove to be accurate. Readers should not place undue reliance on forward-looking statements.

Forward-looking statements contained herein are presented for the purpose of assisting investors in understanding the Company's business plans, financial performance and condition and may not be appropriate for other purposes.

The forward-looking statements contained herein are made only as of the date hereof. 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 to the extent required by applicable law. The Company qualifies all of its forward-looking statements by these cautionary statements.

Competent Person Statement (ASX Listing Rule)

The mineral resource estimate in this release was reported by the Company in accordance with ASX Listing Rule 5.8 on August 5, 2024. The Company confirms that, as of the date of this announcement, it is not aware of any new information or data verified by the competent person that materially affects the information included in the announcement and that all material assumptions and technical parameters underpinning the estimates in the announcement continue to apply and have not materially changed. The Company confirms that, as at the date of this announcement, the form and context in which the competent person's findings are presented have not been materially modified from the original market announcement.

The production target referred to in this release was reported by the Company in accordance with ASX Listing Rule 5.16 on August 21, 2024. The Company confirms that, as of the date of this announcement, all material assumptions and technical parameters underpinning the production target in the original announcement continue to apply and have not materially changed.

Appendix 1 – JORC Code 2012 Table 1 (ASX Listing Rule 5.7.1)

Section 1 – Sampling Techniques and Data

Criteria

JORC Code explanation

Commentary

Sampling techniques

Drilling techniques

Drill sample recovery

Logging

Sub-sampling techniques and sample preparation

Quality of assay data and laboratory tests

Verification of sampling and assaying

Location of data points

Data spacing and distribution

Orientation of data in relation to geological structure

Sample security

Audits or reviews

Section 2 – Reporting of Exploration Results

Criteria

JORC Code explanation

Commentary

Mineral tenement and land tenure status

Exploration done by other parties

Geology

Drill hole Information

Data aggregation methods

Relationship between mineralization widths and intercept lengths

Diagrams

Balanced reporting

Other substantive exploration data

Further work

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SOURCE Patriot Battery Metals Inc.