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Pilot North: Very-High Grade Assay Results

29th Sep 2025 07:00

RNS Number : 1066B
Guardian Metal Resources PLC
29 September 2025
 

29 September 2025

Guardian Metal Resources plc

('Guardian Metal' or the 'Company')

Pilot North: Very-High Grade Assay Results

Guardian Metal Resources plc (LON:GMET, OTCQB:GMTLF), a strategic development and mineral exploration company focused on tungsten in Nevada, USA, is pleased to provide an exploration update for the recently acquired, 100%-owned, Pilot North tungsten-copper project ("Pilot North" or the "Project"), located in the Walker Lane Mineral Belt, approximately 15km northwest of the Company's Pilot Mountain project, in Nevada.

The Company's mission is to establish Guardian Metal as a cornerstone of U.S. tungsten supply, directly supporting national efforts to reshore production of this critical defence mineral. With tungsten designated as a strategic priority by the U.S. government, the Company is advancing its two flagship Nevada projects-Tempiute and Pilot Mountain. By unlocking domestic tungsten resources, Guardian Metal aims to help reduce reliance on foreign supply chains, strengthen U.S. economic and defence security, and deliver long-term value for shareholders.

The Company has now received the assay results for 92 rock chip samples collected during geological fieldwork following the recent staking of Pilot North through direct mining claim staking totalling 102 new Bureau of Land Management ("BLM") Lode Claims, announced 13 August 2025.1 The Project was established as a direct result of the Company's ongoing regional exploration programme.

Oliver Friesen, CEO of Guardian Metal, commented: 

"I am very pleased with the progress we have made on Pilot North since our initial staking just a few months ago. The combination of both the high tenor and consistency of the rock chip assay results-particularly in copper, silver, and tungsten-across much of the Project area is very encouraging and, in our view, underscores the potential importance of this developing opportunity for the Company.

"Importantly, this Project is 100% owned by Guardian Metal, royalty free. Conveniently, it is also 15 km away from Pilot Mountain and shares the same access road.

"We look forward to continuing to move this opportunity forward rapidly, alongside the important work that is currently ongoing at both Pilot Mountain and Tempiute."

 

TECHNICAL SUMMARY

§ Pilot North includes the historical World War II-era mines of "Copper Head", "Western Metals", "Muller Mountain", "Jasper" and "Tungsten Valley", each with extensive outcropping tungsten (W) - copper (Cu) bearing skarns at the contact of granitic intrusions with limestones of the Luning Formation (i.e. the same geology as the Company's Pilot Mountain project).

 

§ Notably, very high-grade copper, silver, tungsten, zinc and strongly anomalous lead, gallium and gold was returned from multiple areas within the Project including (Table 1):

 

o 31 overlimit copper assay results including: 14.65%, 10.6%, 9.21%, 8.86%, 7.22%, 6.92%, 6.89%, 6.78%, 6.7%, 6.27%, 5.56% and 5.3% Cu.

 

o 12 overlimit silver assay results including: 708 g/t, 538 g/t, 496 g/t, 319 g/t, 284 g/t, and 276 g/t Ag.

 

o 13 overlimit tungsten trioxide (WO3) assay results including: 0.59%, 0.46%, 0.40%, 0.36%, and 0.36% WO3.

 

o Additionally, gold results up to 1.025 ppm Au, gallium results up to 49 ppm Ga, zinc results up to 12% Zn, and lead results up 3.81% Pb.

 

§ The Company shortly will be undertaking detailed geological mapping of the most prospective areas to guide the next exploration steps which may include geophysical surveys and diamond drilling.

 

BACKGROUND

Pilot North is located approximately 15 km northwest of the Company's co-flagship Pilot Mountain project and shares the same road access. Pilot North comprises five distinct areas: Copper Head, Western Metals, Muller Mountain, Tungsten Valley and Jasper. The Company considers that these all represent genetically related tungsten-copper-polymetallic skarn mineralisation at the contacts of granitic intrusions with limestones of the Luning Formation, a similar geological setting to the deposits at Pilot Mountain.

Following initial reconnaissance and staking of Pilot North, the Company's expert geological consultant, Dr Lawrence Carter, undertook detailed geological mapping and sampling across the Project to characterise the mineralisation and to develop strategies to advance Pilot North as a satellite to the Company's flagship Pilot Mountain project. From this fieldwork, 92 rock chip sampled were assayed at ALS USA Inc laboratories using the following analytical packages: ME-MS61 for multielement, Au-ICP21 for gold, ME-XRF15c for high grade WO3 and Ag/Cu/Pb/Zn-OG62 for overlimit samples (see Table 1).

Table 1. Summary of Rock Chip Sample Assay Results

SAMPLE

Au

Ag

Ag

Cu

Cu

Pb

Pb

Ga

Zn

Zn

WO3

Unit

ppm

ppm

ppm

ppm

%

ppm

%

ppm

ppm

%

%

ALS Lab Method

Au-ICP21

ME-MS61

Ag-OG62

ME-MS61

Cu-OG62

ME-MS61

Pb-OG62

ME-MS61

ME-MS61

Zn-OG62

ME-XRF15c

LCCH01

0.13

 

8

3

 

23

25

 

LCCH02

52.90

 

2.58

12

 

31

336

 

LCCH03

81.20

 

4.01

4

 

23

1,990

 

LCCH04

55.20

 

3.34

4

 

13

1,450

 

LCCH05

3.13

 

1,840

 

3

 

17

188

 

LCCH06

115

2.29

155

 

11

554

 

LCCH07

86.10

 

2.56

5

 

12

1.17

 

LCCH08

2.61

 

754

 

8

 

17

420

 

LCCH09

0.45

 

141

 

13

 

32

373

 

LCCH10

30.70

 

5.56

251

 

12

1.15

 

LCCH11

1.03

97.00

 

2.80

4

 

24

578

 

LCCH12

0.05

12.05

 

3,910

 

3

 

24

182

 

LCCH13

0.01

5.45

 

1,860

 

207

 

18

648

 

LCCH14

201

14.65

2,850

 

2

1.30

 

LCCH15

708

7,970

 

3.81

17

2,880

 

LCCH16

231

2,080

 

6,260

 

17

3,060

0.19

LCCH17

538

658

 

3.19

18

9,210

0.59

LCCH18

0.05

48.50

 

2.27

130

 

24

236

 

LCCH19

3.46

 

188

 

209

 

16

89

 

LCCH20

2.33

 

1,120

 

48

 

16

161

 

LCCH21

0.61

 

5.30

13

 

1

733

 

LCCH22

1.22

 

6,020

 

19

 

34

141

 

LCCH23

0.44

 

7.22

7

 

14

442

 

LCCH24

13.50

 

2,320

 

8

 

15

46

 

LCCH25

1.85

 

918

 

10

 

18

47

 

LCCH26

2.94

 

624

 

84

 

29

170

 

LCCH27

0.75

 

601

 

11

 

18

31

 

LCJA01

41.00

 

123

 

1,520

 

14

46

 

LCJA02

0.30

 

58

 

16

 

17

6

 

LCJA03

1.04

 

65

 

19

 

6

11

 

LCJA04

0.21

 

41

 

14

 

1

28

 

LCJA05

4.38

 

1,055

 

8

 

2

981

 

LCMM01

0.01

0.93

 

429

 

3

 

20

384

 

LCMM02

4.44

 

7,180

 

5

 

16

753

 

LCMM03

1.26

 

1,205

 

5

 

11

291

 

LCMM04

0.01

4.05

 

2,290

 

13

 

19

179

 

LCMM05

0.76

 

286

 

5

 

20

73

 

LCMM06

6.22

 

1,140

 

11

 

21

68

 

LCMM07

0.00

1.62

 

1.76

4

 

31

346

0.14

LCMM08

0.19

 

172

 

4

 

34

23

 

LCMM09

24.50

 

1.87

4

 

10

1.36

 

LCMM10

0.81

 

857

 

6

 

22

633

 

LCMM11

0.10

319

6.78

1,530

 

7

2,080

0.14

LCMM12

1.24

 

222

 

11

 

18

336

 

LCMM13

1.81

 

463

 

18

 

14

118

 

LCMM14

0.26

 

89

 

13

 

16

139

 

LCMM15

0.35

 

143

 

13

 

13

116

 

LCMM16

5.59

 

1,405

 

27

 

16

306

 

LCMM17

0.12

79.90

 

2.08

457

 

3

4,590

0.11

LCMM18

2.77

 

670

 

73

 

17

1,665

 

LCMM19

59.00

 

3.05

691

 

12

1.57

 

LCMM20

59.80

 

1.29

78

 

7

2,360

 

LCMM21

0.00

8.35

 

1,470

 

231

 

2

1.03

 

LCMM22

84.90

 

9.21

102

 

14

12.00

0.46

LCMM23

496

6.70

1,920

 

3

4,660

 

LCMM24

215

8.86

31

 

7

9,990

0.19

LCMM25

6.59

 

1,450

 

47

 

22

250

 

LCMM26

284

6.92

39

 

8

1.61

 

LCMM27

2.43

 

2,530

 

21

 

18

1,375

 

LCMM28

37.80

 

2.95

84

 

32

1,265

 

LCMM29

0.40

 

155

 

3

 

46

233

 

LCMM30

133

2.99

688

 

36

6,560

0.36

LCTV01

0.49

 

248

 

32

 

18

167

0.24

LCTV02

2.32

 

791

 

23

 

50

209

 

LCTV03

30.90

 

8,120

 

986

 

34

534

0.19

LCTV04

3.69

 

1,290

 

243

 

10

551

 

LCTV05

24.50

 

351

 

1,810

 

9

335

0.27

LCTV06

14.15

 

1,770

 

14

 

16

101

 

LCTV07

0.48

 

354

 

15

 

16

64

 

LCWM01

276

4.51

1,275

 

35

2,880

 

LCWM02

7.19

 

3,220

 

32

 

44

358

 

LCWM03

25.10

 

3.09

9

 

16

1,875

 

LCWM04

0.07

132

6.89

31

 

12

1,120

 

LCWM05

0.61

 

395

 

4

 

12

62

 

LCWM06

0.01

33.80

 

2.48

23

 

10

1,085

 

LCWM07

0.01

6.81

 

6.27

3

 

6

1,955

 

LCWM08

19.30

 

4.12

3

 

20

6,890

 

LCWM09

0.34

 

730

 

1,030

 

3

1.52

 

LCWM10

0.04

0.80

 

7,620

 

6

 

18

3,270

 

LCWM11

0.18

68.50

 

668

 

8,030

 

2

980

 

LCWM12

0.53

14.55

 

304

 

1,705

 

2

234

 

LCWM13

0.13

71.60

 

131

 

2,460

 

1

209

 

LCWM14

0.53

94.40

 

1.06

3,840

 

1

284

 

PZMM01

91.20

 

10.60

21

 

10

2,700

 

PZMM02

0.64

 

361

 

22

 

24

75

 

PZMM03

0.91

 

740

 

8

 

28

85

 

PZMM04

0.16

 

65

 

12

 

18

83

 

PZMM05

0.19

 

49

 

6

 

22

100

 

PZMM06

0.11

 

23

 

10

 

19

73

 

PZMM07

0.05

24.20

 

3,740

 

7

 

27

241

0.36

PZMM08

25.10

 

3,900

 

7

 

27

257

0.40

HRWM0625

0.35

 

237

 

11

 

42

253

 

Table Notes : Summary of certificated assay results provided by accredited laboratory ALS USA Inc. ppm: parts per million, 10,000 ppm = 1%

 

MEDIA

Figure 1. Example of copper oxide rich garnet skarn outcropping on the Pilot North project.

 

Figure 2. Example of historical mine workings on the Pilot North project targeting garnet skarns.

 

Figure 3. Visible light and ultraviolet (UV) light view of copper oxide and scheelite rich skarn from the Muller Mountain area.

 

PROPERTY OWNERSHIP

Guardian Metal holds a royalty free, 100% interest in the Pilot North Project, through its wholly-owned Nevada operating company, Golden Metal Resources LLC.

 

COMPETENT PERSON STATEMENT

The technical information contained in this disclosure has been read and approved by Mr Nick O'Reilly (MSc, DIC, MIMMM QMR, MAusIMM, FGS), who is a qualified geologist and acts as a Competent Person under the AIM Rules - Note for Mining and Oil & Gas Companies. Mr O'Reilly is a Principal consultant working for Mining Analyst Consulting Ltd which has been retained by Guardian Metal to provide technical support.

References

 

1 Company Announcement, Pilot North: Enlargement following Assay Results, dated 13 August 2025( https://polaris.brighterir.com/public/guardian_metal_resources/news/rns/story/w106z3r )

 

2 Company Announcement, Pilot North Tungsten Project Acquired via Staking, dated 7 July 2025 ( https://polaris.brighterir.com/public/guardian_metal_resources/news/rns/story/wveg0px )

 

 

This announcement contains inside information for the purposes of Article 7 of EU Regulation 596/2014 (which forms part of domestic UK law pursuant to the European Union (Withdrawal) Act 2018).

Forward Looking Statements

This announcement contains forward-looking statements relating to expected or anticipated future events and anticipated results that are forward-looking in nature and, as a result, are subject to certain risks and uncertainties, such as general economic, market and business conditions, competition for qualified staff, the regulatory process and actions, technical issues, new legislation, uncertainties resulting from potential delays or changes in plans, uncertainties resulting from working in a new political jurisdiction, uncertainties regarding the results of exploration, uncertainties regarding the timing and granting of prospecting rights, uncertainties regarding the timing and granting of regulatory and other third party consents and approvals, uncertainties regarding the Company's or any third party's ability to execute and implement future plans, and the occurrence of unexpected events. 

Actual results achieved may vary from the information provided herein as a result of numerous known and unknown risks and uncertainties and other factors.

For further information visit www.Guardianmetalresources.com or contact the following:

Guardian Metal Resources plc

Oliver Friesen (CEO)

Tel: +44 (0) 20 7583 8304

Cairn Financial Advisers LLP

Nominated Adviser

Sandy Jamieson/Jo Turner/Louise O'Driscoll

Tel: +44 20 7213 0880

Shard Capital Partners LLP

Lead Broker

Damon Heath/Erik Woolgar

Tel: +44 (0) 20 7186 9000

 

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