# EDGAR Filing Document

**Accession Number:** 0002039972
**File Stem:** 0001654954-26-005867
**Filing Date:** 2026-6
**Character Count:** 5966
**Document Hash:** 68e08b9b65889b24f1691991e7b07201
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001654954-26-005867.hdr.sgml**: 20260611

**ACCESSION NUMBER**: 0001654954-26-005867

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260611

**FILED AS OF DATE**: 20260611

**DATE AS OF CHANGE**: 20260611

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Guardian Metal Resources PLC
- **CENTRAL INDEX KEY:** 0002039972
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 994890935
- **STATE OF INCORPORATION:** X0
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43199
- **FILM NUMBER:** 261081368

**BUSINESS ADDRESS:**
- **STREET 1:** SALISBURY HOUSE
- **STREET 2:** LONDON WALL
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** EC2M 5PS
- **BUSINESS PHONE:** 44 20 3778 1396

**MAIL ADDRESS:**
- **STREET 1:** SALISBURY HOUSE
- **STREET 2:** LONDON WALL
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** EC2M 5PS

 **UNITED STATES**

 **SECURITIES AND EXCHANGE COMMISSION**

 **WASHINGTON, D.C. 20549**

 **FORM 6-K**

 **REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934**

 **11 June, 2026**

 **Commission File Number 001-43199**

 **Guardian Metal Resources PLC**

 **c/o Orana Corporate LLP**

 **25 Eccleston Place**

 **London SW1W 9NF**

 **United Kingdom**

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ___

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ____

**Guardian Metal Resources PLC**

On 11 June, 2026, Guardian Metal Resources PLC issued a press release titled "Board Update"

A copy of the press release is attached hereto as Exhibit 99.1.

**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on behalf by the undersigned, thereunto duly authorized.

 **Guardian Metal Resources PLC**

(Registrant)

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| | |
|:---|:---|
| Date: 11 June, 2026 | By: /s/ Oliver Friesen |
|  | <br> Name: Oliver Friesen |
|  | <br> Title: Chief Executive Officer |

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 **Exhibit Index**

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| | |
|:---|:---|
|  **Exhibit** | **Description of Exhibit**  |
| 99.1 | Board Update dated 11 June, 2026. |

---

11 June 2026

 **Guardian Metal Resources plc**

 **('Guardian Metal' or the 'Company')**

 **Board Update**

Further to its announcement of board changes on 21 May 2026 and the conclusion of necessary due diligence, Guardian Metal Resources plc (NYSE-A: GMTL, LON: GMET, OTCQB: GMTLF), a mineral exploration company focused on tungsten within Nevada, USA, announces the formal appointment of Dr Mark Bramley Thorpe to its Board with immediate effect.

Mark will be an Independent Non-executive Director of Guardian Metal and will be a member of the Audit Committee. He replaces Mr. Mark Burnett who retired from the Board, as announced previously.

 **Regulatory Disclosures:**

The following information is disclosed pursuant to Rule 17 and Schedule Two paragraph (g) of the AIM Rules for Companies in relation to Mr. Thorpe, aged 66 :

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| | |
|:---|:---|
| **Current directorships and/or partnerships:**<br>| **Former directorships and/or partnerships (within the last five years):**<br>|
| -<br>| Envirogold Global Limited (Canada)<br> Canada Mining Innovation Council (Canada)<br>|

---

There is no further information to be disclosed pursuant to paragraph (g) of Schedule 2 of the AIM rules.

For further information visit <u>www.Guardianmetalresources.com</u> or contact the following:

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| | |
|:---|:---|
| **Guardian Metal Resources plc**<br> Oliver Friesen (CEO)<br>| Tel: +44 (0) 20 7583 8304<br>|
| **Cairn Financial Advisers LLP**<br> Nominated Adviser<br> Sandy Jamieson/Jo Turner/Louise O'Driscoll<br>| Tel: +44 (0) 20 7213 0880<br>|
| **Berenberg**<br> Joint Broker and Financial Adviser<br> Jennifer Lee/Ivan Briechle<br>| Tel: +44 (0) 20 3207 7800<br>|
| **Tamesis Partners LLP**<br> Joint Broker<br> Charlie Bendon/Richard Greenfield<br>| Tel: +44 (0) 20 3882 2868<br>|
| **Tavistock**<br> Financial PR in the UK<br> Emily Moss/Josephine Clerkin | Tel: +44 (0) 7920 3150 /<br> +44 (0) 7788 554035<br> guardianmetal@tavistock.co.uk<br>|
| **Edelman Smithfield**<br> Financial PR in the US | <br> guardianmetal@edelmansmithfield.com<br>|

---

**About Guardian Metal Resources** 

Guardian Metal Resources PLC (NYSE.A: GMTL, LON:GMET, OTCQB:GMTLF) is a strategic mineral exploration company driving the revival of U.S. mined tungsten production and strengthening America's defense metal independence. The Company is advancing two co-flagship tungsten projects, Pilot Mountain, one of the largest undeveloped tungsten deposits in the U.S. and Tempiute, formerly America's largest producing tungsten operation, both located in Nevada, one of the top-rated mining jurisdictions in the United States.

In July 2025, the U.S. Department of War (DoW) under Title III of the Defense Production Act of 1950, as amended, invested US$6.2M in Golden Metal Resources (USA) LLC, a wholly-owned subsidiary of Guardian Metal Resources PLC, to support the Pilot Mountain PFS. The Company completed a U.S. listing on the NYSE American on March 20, 2026.

Tungsten is a strategic metal critical to the defense, energy transition, technology, and industrial sectors. In the context of shifting geopolitical dynamics and tightening Chinese export restrictions, Guardian Metal is well positioned to play a leading role in re-establishing a secure, domestically mined U.S. supply chain for this vital defense metal.