(Incorporated in the United Kingdom)

Note: This is NOT an IPO. This is a public offering – an uplisting to the NYSE-American Exchange from the AIM (market) of the London Stock Exchange. This is an offering of American Depositary Shares (ADS), according to the prospectus. Each ADS represents 5 (five) ordinary shares. After the U.S. public offering, Guardian Metal Resources PLC’s ordinary shares will continue to trade under the symbol “GMET” on the AIM in London.

We are an exploration-stage mining company focused on developing our tungsten projects in Nevada. Our major projects are the tungsten properties – Pilot Mountain and Tempiute.

Note: We do not currently operate producing mines. We have not generated revenue from mineral production.

Our activities are focused on the exploration and technical evaluation of our mineral properties and preparing the groundwork for future permitting and development decisions. Our projects are located within established mining jurisdictions in Nevada, where mining regulations and permitting processes have historically been favorable to the sector.

Our operational activities include detailed engineering activities to support the completion of a feasibility study at Pilot Mountain and exploration and resource definition drilling at Tempiute. These programs are conducted through our U.S. subsidiaries and supported by independent consultants, including qualified persons as defined under Subpart 1300 of Regulation S-K.

In addition to work at Pilot Mountain and Tempiute, we manage a portfolio of earlier-stage exploration projects, including the Garfield gold-silver-copper project, the Golconda gold project, the Kibby Basin lithium project and the Stonewall gold-silver project. Together, we believe these properties provide a pipeline of exploration opportunities across multiple commodities within Nevada, a well-established mining jurisdiction. We continue to evaluate opportunities to advance our assets, maintain regulatory compliance and meet the technical and environmental requirements associated with future project development.

Note: Net loss is in U.S. dollars for the 12 months that ended Dec. 31, 2025. The company has no revenue.

(Note: Guardian Metal Resources PLC upsized its public offering – its uplisting to the NYSE-AmEx – to 4.44 million American Depositary Shares (ADS)  – up from 3.06 million ADS in the prospectus – and priced the deal at $13.50 – to raise $59.94 million on Thursday night, March 19, 2026. The public offering price of $13.50 is the as-converted U.S. dollar equivalent of the ordinary share’s closing price on Thursday, March 19, 2026, on the AIM in London. Each ADS represents five ordinary shares. In the prospectus, the assumed public offering price (the reference price) was $16.35. the U.S. dollar as-converted closing price of Guardian Metal’s ordinary shares on London’s AIM on March 12, 2026, according to the prospectus.)

(Background: Guardian Metal Resources PLC disclosed the terms for its ADS offering – an uplisting to the NYSE-American Exchange (NYSE-AmEx) – in an F-1/A filing early Monday, March 16, 2026: 3.06 million ADS at $16.35 per share – to raise $50.03 million. The $16.35 ADS price is the U.S. dollar-as converted price, based on Guardian Metal’s ordinary share’s closing price on March 12, 2026, on the AIM, a market of the London Stock Exchange. Background: Guardian Metal Resources PLC filed its F-1 on Feb. 26, 2026, for its public offering of up to $50 million – in connection with its plan for an uplisting to the NYSE-American Exchange. This is an offering of American Depositary Shares (ADS).)