Guardian Metal raises £1.6m from warrant exercise

Guardian Metal Resources PLC reported that holders exercised warrants for 3,989,027 new ordinary shares at an exercise price of 40 pence per share, raising £1,595,610.80 for the company.

Rhea-AI Filing Summary

Guardian Metal Resources PLC reported that holders exercised warrants for 3,989,027 new ordinary shares at an exercise price of 40 pence per share, raising £1,595,610.80 for the company. These warrants were issued in connection with a strategic financing announced on 15 August 2024.

After this exercise, only 100,000 warrants remain outstanding, also exercisable at 40 pence per share and expiring on 25 January 2027, related to the Tempiute Definitive Exploration Lease and Option to Purchase Agreement. Application will be made for the new shares to be admitted to trading on AIM, expected on or around 20 August 2026, where they will rank pari passu with existing shares.

Following admission, Guardian Metal’s issued share capital will be 198,797,008 ordinary shares of 1 pence each, representing the company’s total voting rights. The company highlights its focus on tungsten projects in Nevada and notes a prior US$6 investment from the U.S. Department of War under Title III of the Defense Production Act to support the Pilot Mountain PFS.

Key Figures

Warrant Shares Exercised: 3,989,027 shares Exercise Price: 40 pence per share Cash Raised: £1,595,610.80 +5 more

8 metrics

Warrant Shares Exercised 3,989,027 shares New ordinary shares from warrant exercise at 40 pence per share

Exercise Price 40 pence per share Exercise price for each Warrant Share

Cash Raised £1,595,610.80 Gross proceeds to the company from the warrant exercise

Remaining Warrants 100,000 shares Outstanding Warrant Shares after the reported exercise

Post-Admission Share Capital 198,797,008 shares Total issued ordinary shares of 1 pence each after AIM admission

Remaining Warrants Expiry 25 January 2027 Expiry date of the 100,000 remaining Warrant Shares

DoW Investment US$6 Investment in Golden Metal Resources (USA) LLC under Title III DPA

Expected AIM Admission Date 20 August 2026 Expected date for new Warrant Shares to begin trading on AIM

Key Terms

warrant exercise, pari passu, total voting rights, Definitive Exploration Lease and Option to Purchase Agreement, +2 more

6 terms

warrant exercise financial

"Guardian Metal Resources plc announces that the Company has received a notice to exercise warrants"

A warrant exercise is when the holder of a warrant pays a preset price to convert that warrant into actual company shares. Think of it like using a coupon to buy a product at a locked-in price; if the market price is higher, the buyer gains immediate value. For investors it matters because exercising brings cash into the company but also increases the total number of shares, which can reduce each existing shareholder’s ownership percentage and affect the stock price.

pari passu financial

"The Warrant Shares will rank pari passu in all respects with the ordinary shares"

An instruction that different claims, securities, or creditors are treated equally and share rights or payments on the same priority level. For investors, it means their position will be paid or have voting power alongside others in the same class rather than being favored or subordinated—think of several people standing in one bus line who all get on together rather than some cutting ahead. That parity affects expected recovery in reorganizations, dividend order, and relative risk.

total voting rights financial

"This number will represent the total voting rights in the Company"

The total voting rights number is the count of shares that carry the right to vote at a company’s shareholder meetings, reflecting how much voting power exists in the market. Investors use it to understand control and influence—like knowing how many votes are in play when measuring ownership stakes, calculating a shareholder’s voting percentage, or assessing how easy it would be for a holder to sway decisions.

Definitive Exploration Lease and Option to Purchase Agreement technical

"These Warrant Shares relate to Tempiute's Definitive Exploration Lease and Option to Purchase Agreement"

Title III of the Defense Production Act of 1950 regulatory

"the U.S. Department of War under Title III of the Defense Production Act of 1950"

strategic mineral exploration company financial

"is a strategic mineral exploration company driving the revival of U.S. mined tungsten"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What warrant exercise did Guardian Metal Resources (GMTL) announce on this Form 6-K?

Guardian Metal Resources announced the exercise of warrants over 3,989,027 new ordinary shares at an exercise price of 40 pence per share, providing cash proceeds of £1,595,610.80 to the company as part of previously arranged strategic financing.

How does the warrant exercise affect Guardian Metal Resources (GMTL) share capital and voting rights?

Following admission of the 3,989,027 new shares to AIM, Guardian Metal’s issued share capital will total 198,797,008 ordinary shares of 1 pence each. This figure will represent the company’s total voting rights for disclosure calculations under UK transparency rules.

How many Guardian Metal Resources (GMTL) warrants remain outstanding and when do they expire?

After the reported exercise, 100,000 warrant shares remain on the register. These remaining warrants carry an exercise price of 40 pence per share and an expiry date of 25 January 2027, linked to the Tempiute project agreement.

When will the new Guardian Metal Resources (GMTL) warrant shares start trading on AIM?

Application will be made for the 3,989,027 new warrant shares to be admitted to trading on AIM, with admission expected on or around 20 August 2026. The new shares will rank pari passu with Guardian Metal’s existing ordinary shares.

What strategic support has Guardian Metal Resources (GMTL) received from the U.S. government?

In July 2025, the U.S. Department of War invested US$6 in Golden Metal Resources (USA) LLC, a wholly owned subsidiary of Guardian Metal Resources PLC, under Title III of the Defense Production Act of 1950 to support the recently completed Pilot Mountain PFS.

What are Guardian Metal Resources’ (GMTL) main projects mentioned in this disclosure?

Guardian Metal Resources is advancing two co-flagship tungsten projects in Nevada: Pilot Mountain, described as one of the largest undeveloped U.S. tungsten deposits, and Tempiute, formerly one of America’s largest producing tungsten operations, both in a top-rated mining jurisdiction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 08/17/2026 - 07:29 AM EDT Learn about SEC filing dates

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

17 August, 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 17 August, 2026, Guardian Metal Resources PLC issued a press release titled “Warrant Exercise.”

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)

Date: 17 August, 2026		By: /s/ Oliver Friesen
		Name: Oliver Friesen
		Title: Chief Executive Officer

Exhibit Index

Exhibit	Description of Exhibit
99.1	Warrant Exercise dated 17 August, 2026.

17 August 2026

Guardian Metal Resources plc

("Guardian Metal" or the "Company")

Warrant Exercise

Guardian Metal Resources plc (NYSE.A: GMTL, LON: GMET, OTCQB: GMTLF), a strategic exploration company focused on tungsten in Nevada, USA, announces that the Company has received a notice to exercise warrants over a total of 3,989,027 new ordinary shares of 1 pence each in the Company at an exercise price of 40 pence per Option Share ("Warrant Shares"), raising £1,595,610.80 for the Company.

The Warrant Shares were issued in connection with the strategic financing raise as announced 15 August 2024.

Following the exercise of the Warrant Shares, there are only 100,000 Warrant Shares remaining on the register. They also have an exercise price of 40p per Warrant Share, with an expiry date of 25 January 2027. These Warrant Shares relate to Tempiute's Definitive Exploration Lease and Option to Purchase Agreement, as announced in January 2025.

ADMISSION AND TOTAL VOTING RIGHTS

Application will be made for the 3,989,027 Warrant Shares to be admitted to trading on AIM which is expected to occur on or around 20 August 2026 ("Admission"). The Warrant Shares will rank pari passu in all respects with the ordinary shares of the Company currently traded on AIM.

Following Admission, the Company's issued share capital will comprise 198,797,008 ordinary shares of 1p each. This number will represent the total voting rights in the Company and may be used by shareholders as the denominator for the calculation by which they can determine if they are required to notify their interest in, or a change to their interest in, the Company under the Financial Conduct Authority's Disclosure and Transparency Rules.

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 (0) 20 7213 0880
Berenberg Joint Broker and Financial Adviser Jennifer Lee/Ivan Briechle	Tel: +44 (0) 20 3207 7800
Tamesis Partners LLP Joint Broker Charlie Bendon/Richard Greenfield	Tel: +44 (0) 20 3882 2868
Tavistock Financial PR in the UK Emily Moss/Josephine Clerkin	Tel: +44 (0) 7920 3150 / +44 (0) 7788 554035 guardianmetal@tavistock.co.uk
Edelman Smithfield Financial PR in the US	guardianmetal@edelmansmithfield.com

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 defence 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 one of America's largest producing tungsten operations, both located in Nevada, one of the top-rated mining jurisdictions in the world.

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 recently completed 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 defence, 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 defence metal.