Guardian Metal Resources PLC Regulatory News (GMET)

2 June 2026

Guardian Metal Resources plc

("Guardian Metal" or the "Company")

Exercise of Options

Guardian Metal Resources plc (LON:GMET/OTCQB:GMTLF/NYSE A:GMTL), a strategic exploration company focused on tungsten in Nevada, USA, announces that the Company has received a notice to exercise options over a total of 500,000 new ordinary shares of 1 pence each in the Company ("Option Shares") at an exercise price of 14 pence per Option Share, raising £70,000 for the Company.

ADMISSION AND TOTAL VOTING RIGHTS

Application will be made for the 500,000 Option Shares to be admitted to trading on AIM which is expected to occur on or around 8 June 2026 ("Admission"). The Option 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 194,807,981 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 please contact the following:

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 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 U.S. $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.