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Guardian Metal Resources PLC Announces Pilot North: Very-High Grade Assay Results

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Guardian Metal Resources (OTCQB:GMTLF) has announced exceptional assay results from its 100%-owned Pilot North tungsten-copper project in Nevada. The company collected 92 rock chip samples from the recently staked 102 BLM Lode Claims, revealing significant mineral concentrations including copper grades up to 14.65%, silver up to 708 g/t, and tungsten trioxide up to 0.59%.

The Project, located 15km northwest of the company's Pilot Mountain project, encompasses five historical World War II-era mines: Copper Head, Western Metals, Muller Mountain, Jasper, and Tungsten Valley. The geology mirrors that of Pilot Mountain, with tungsten-copper bearing skarns at granitic intrusion contacts.

This strategic acquisition aligns with Guardian Metal's mission to establish itself as a cornerstone of U.S. tungsten supply, supporting national efforts to reduce foreign supply chain dependence for this critical defense mineral.

[ "Exceptional high-grade assay results with copper up to 14.65%, silver up to 708 g/t, and tungsten trioxide up to 0.59%", "100% ownership with no royalties on the Pilot North project", "Strategic location 15km from existing Pilot Mountain project with shared access road", "Project supports U.S. government's strategic priority for domestic tungsten production", "Multiple historical mines within the property indicating proven mineralization" ]

Guardian Metal Resources (OTCQB:GMTLF) ha annunciato risultati di saggi eccezionali dal suo progetto Pilot North di tungsteno-rame, interamente di proprietà, situato nel Nevada. L'azienda ha raccolto 92 campioni di roccia dai 102 nuovi lotti Lode Claims recentemente stanziati, rilevando concentrazioni significative tra cui grammi di rame fino al 14,65%, argento fino a 708 g/t e ossido di tungsteno fino a 0,59%.

Il progetto, situato a 15 km a nord-ovest del progetto Pilot Mountain dell'azienda, comprende cinque miniere storiche dell'era della Seconda Guerra Mondiale: Copper Head, Western Metals, Muller Mountain, Jasper e Tungsten Valley. La geologia è analoga a quella di Pilot Mountain, con skarn di tungsteno-rame ai contatti con intrusioni granitiche.

Questo acquisto strategico è in linea con l'obiettivo di Guardian Metal di affermarsi come pilastro dell'offerta statunitense di tungsteno, sostenendo gli sforzi nazionali per ridurre la dipendenza dalle forniture estere per questo minerale difensivo critico.

Guardian Metal Resources (OTCQB:GMTLF) ha anunciado resultados de ensayo excepcionales de su proyecto Pilot North de tungsteno-cobre, 100% propiedad, en Nevada. La compañía recolectó 92 muestras de roca de las 102 concesiones Lode Claims recientemente adquiridas, revelando concentraciones minerales significativas que incluyen cobre de hasta 14,65%, plata de hasta 708 g/t y óxido de tungsteno de hasta 0,59%.

El proyecto, ubicado a 15 km al noroeste del proyecto Pilot Mountain de la empresa, comprende cinco minas históricas de la era de la Segunda Guerra Mundial: Copper Head, Western Metals, Muller Mountain, Jasper y Tungsten Valley. La geología es similar a la de Pilot Mountain, con skarns de tungsteno-cobre en los contactos de intrusiones graníticas.

Esta adquisición estratégica se alinea con la misión de Guardian Metal de convertirse en un pilar de suministro de tungsteno de EE. UU., apoyando los esfuerzos nacionales para reducir la dependencia de la cadena de suministro extranjera de este mineral crítico para la defensa.

Guardian Metal Resources (OTCQB:GMTLF)는 네바다 주에 위치한 100% 소유의 Pilot North 텅스텐-구리 프로젝트에서 뛰어난 샘플링 결과를 발표했습니다. 회사는 최근 확보한 102개의 BLM 로드 클레임에서 92개의 암석 시료를 채취했으며, 구리 최대 14.65%, 은 708 g/t, 텅스텐 산화물 최대 0.59%의 유의미한 광물 농도를 확인했습니다.

이 프로젝트는 회사의 Pilot Mountain 프로젝트에서 북서쪽으로 15km 떨어진 위치에 있으며, 제2차 세계대전 시대의 다섯 광산인 Copper Head, Western Metals, Muller Mountain, Jasper, Tungsten Valley를 포함합니다. 지질은 Pilot Mountain와 유사하며, 석영 이 intrusion 접촉부에서 텅스텐-구리 함유 스카른이 형성되어 있습니다.

이 전략적 인수는 미국 텅스텐 공급의 초석으로 자리매김하겠다는 Guardian Metal의 사명과 맞물려, 이 중요한 방위 광물의 해외 공급망 의존도를 낮추려는 국가적 노력을 지지합니다.

Guardian Metal Resources (OTCQB:GMTLF) a annoncé des résultats d’échantillonnage exceptionnels pour son projet Pilot North de tungstène-cuivre, entièrement détenu, situé dans le Nevada. La société a prélevé 92 échantillons de roches sur les 102 claims Lode récemment attribués, révélant des concentrations minérales significatives, dont cuivre jusqu’à 14,65%, argent jusqu’à 708 g/t et oxyde de tungstène jusqu’à 0,59%.

Le projet, situé à 15 km au nord-ouest du projet Pilot Mountain, comprend cinq mines historiques de l’ère de la Seconde Guerre mondiale: Copper Head, Western Metals, Muller Mountain, Jasper et Tungsten Valley. La géologie est similaire à celle de Pilot Mountain, avec des skarns tungstène-cuivre au contact des intrusions granitiques.

Cette acquisition stratégique s’aligne sur la mission de Guardian Metal de devenir une pierre angulaire de l’approvisionnement américain en tungstène, soutenant les efforts nationaux visant à réduire la dépendance vis-à-vis des chaînes d’approvisionnement étrangères pour ce minerai de défense critique.

Guardian Metal Resources (OTCQB:GMTLF) hat außergewöhnliche Bohrergebnisse von seinem zu 100 % im Besitz befindlichen Pilot North-Tungsten-Kupfer-Projekt in Nevada bekannt gegeben. Das Unternehmen sammelte 92 Gesteinsproben aus den kürzlich gestellten 102 BLM Lode Claims und ergab signifikante Mineralienkonzentrationen, darunter Kupfergrade bis zu 14,65%, Silber bis zu 708 g/t und Wolframtrioxid bis zu 0,59%.

Das Projekt, 15 km nordwestlich des Pilot Mountain-Projekts des Unternehmens gelegen, umfasst fünf historische Minen aus der WWII-Ära: Copper Head, Western Metals, Muller Mountain, Jasper und Tungsten Valley. Die Geologie ähnelt der von Pilot Mountain, mit Wolfram-Kupfer-Skanen an Kontakten granitischer Invasionen.

Diese strategische Akquisition steht im Einklang mit Guardian Metals Mission, sich als Grundpfeiler der US-Wolframversorgung zu etablieren und nationale Bemühungen zu unterstützen, die Abhängigkeit von ausländischen Lieferketten für dieses kritische Verteidigungsmineral zu reduzieren.

Guardian Metal Resources (OTCQB:GMTLF) أعلنت عن نتائج فحص استثنائية من مشروع Pilot North المملوك بنسبة 100% من المعادن القابلة للصهر في نيفادا، وهو مشروع يضم النحاس والـتنجستن. جمعت الشركة حوالى 92 عينة صخر من 102 من مطالبات BLM المضافة حديثاً، وكشفت عن تركيزات معدنية مهمة تشمل نسب النحاس حتى 14.65%، والفضة حتى 708 جم/طن، وثاني أكسيد التنجستن حتى 0.59%.

ويقع المشروع على بُعد حوالي 15 كم شمال غرب من مشروع Pilot Mountain الخاص بالشركة، ويشمل خمس مناجم تاريخية من عصر الحرب العالمية الثانية: Copper Head، Western Metals، Muller Mountain، Jasper وTungsten Valley. تشابه جيولوجيته مع Pilot Mountain مع وجود سكّران تحمل النحاس والتنجستن عند تماسات التدخلات granite.

تتماشى هذه الاستحواذ الاستراتيجي مع مهمة Guardian Metal لإثبات نفسها كركيزة لإمدادات التنجستن الأمريكية، دعمًا للجهود الوطنية لتقليل الاعتماد على سلاسل التوريد الأجنبية لهذا المعدن الدفاعي الحساس.

Guardian Metal Resources (OTCQB:GMTLF) 宣布其在内华达州完全自有的 Pilot North 钨-铜项目获得卓越的化验结果。公司从最近投用的 102 块 BLM 载名地块中采集了 92 份岩石样本,显示显著的矿物含量,包括 铜品位高达 14.65%、银高达 708 g/t,以及三氧化钨高达 0.59%

该项目位于公司 Pilot Mountain 项目西北约 15 公里,包含五处二战时期的历史矿山:Copper Head、Western Metals、Muller Mountain、Jasper 和 Tungsten Valley。该地质与 Pilot Mountain 相似,在花岗岩侵入体接触处有含钨-铜的 Skarn。

这一战略性收购符合 Guardian Metal 的使命,即成为美国钨供应的基石,支持国家减少对外部供应链在这一关键防务矿物上的依赖的努力。

Positive
  • None.
Negative
  • Project is still in early exploration phase requiring additional geological mapping and potential drilling
  • Historical mines indicate previous extraction, potentially limiting remaining resources
  • Further exploration work and capital expenditure required to advance the project

LONDON, UK / ACCESS Newswire / September 29, 2025 / 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):

    • 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

    • 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.

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

    • 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

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com.

SOURCE: Guardian Metal Resources PLC



View the original press release on ACCESS Newswire

FAQ

What were the key findings from GMTLF's Pilot North assay results?

The assays revealed 31 overlimit copper results up to 14.65%, 12 overlimit silver results up to 708 g/t, and 13 overlimit tungsten trioxide results up to 0.59%, along with significant zinc, lead, gallium, and gold values.

Where is Guardian Metal's Pilot North project located and what is its ownership structure?

Pilot North is located in the Walker Lane Mineral Belt, Nevada, approximately 15km northwest of the company's Pilot Mountain project. The project is 100% owned by Guardian Metal with no royalties through its Nevada operating company.

How many mining claims does GMTLF hold at Pilot North?

Guardian Metal holds 102 Bureau of Land Management (BLM) Lode Claims at Pilot North, which were staked in August 2025.

What historical mines are included in the Pilot North project?

The project includes five World War II-era mines: Copper Head, Western Metals, Muller Mountain, Jasper, and Tungsten Valley, all featuring tungsten-copper bearing skarns.

What are the next steps for GMTLF's Pilot North project?

The company plans to conduct detailed geological mapping of the most prospective areas, followed by potential geophysical surveys and diamond drilling.
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