Guardian Metal Resources PLC (GMTL) SEC Filings

Guardian Metal Resources PLC registers for resale by selling shareholders up to 72,111,177 ordinary shares, including in the form of American Depositary Shares; each ADS represents five ordinary shares. This is a resale registration, not a sale by the company, and registration does not mean holders will sell all the shares. Guardian will receive no proceeds from selling shareholders’ sales.

Guardian had 198,797,008 ordinary shares outstanding as of September 11, 2026. Separately, it issued 3,989,027 new ordinary shares on August 17, 2026, following warrant exercises before expiry, raising £1,595,610.80 (approximately $2,115,000). The selling shareholders determine if, when and how to sell the registered shares.

Guardian Metal Resources PLC (GMTL) reported positive drilling results from its Tempiute tungsten project in Nevada, covering completed Phase I regional drilling and early Phase II resource drilling around the historical underground mine. Phase II plans approximately 46 diamond drillholes, with 28 completed so far, targeting the South Thumb and Schofield zones to support a potential initial Mineral Resource estimate.

Highlighted Phase II intersections include 92.0m at 0.34% WO3 from 102.5m in hole TP26-046, plus 27.9m at 0.27% WO3 from 68.6m, and 20.2m at 0.21% WO3 from 210.0m in TP26-042. Phase I comprised 41 holes, 20 of which intersected strong tungsten mineralization across multiple targets beyond the historical mine footprint. Based on these results and visual observations from additional holes, the company decided to commence rehabilitation of historical underground workings, expected to start in October 2026, to enable underground drilling and prepare the project for potential future mine development.

Guardian Metal Resources PLC (GMTL) reports that on September 17, 2026 it filed its Annual Report on Form 20-F for the year ended June 30, 2026 with the U.S. Securities and Exchange Commission. The report is available on the company’s website and on the SEC’s website, and hard copies of the audited financial statements are offered free of charge on request.

The company describes itself as a strategic mineral exploration business focused on reviving U.S. mined tungsten production through its Pilot Mountain and Tempiute projects in Nevada. It notes that in July 2025 the U.S. Department of War, under Title III of the Defense Production Act of 1950, invested US$6 in its wholly owned U.S. subsidiary to support the Pilot Mountain pre-feasibility study, and that it completed a listing on the NYSE American on March 20, 2026.

Guardian Metal Resources PLC (GMTL) has filed a post‑effective amendment to its Form F‑1 to update its existing resale registration with audited financials for the year ended June 30, 2026 and related disclosures from its latest Form 20‑F. The prospectus covers the resale, from time to time, of up to 72,111,177 ordinary shares, including in the form of American Depositary Shares, by existing selling shareholders under a Registration Rights Agreement. The company is not issuing new securities and will receive no proceeds from these sales, though it will bear registration expenses. Ordinary shares trade on AIM under “GMET” and ADSs on NYSE American under “GMTL.” Guardian is a U.S.-focused, exploration‑ and development‑stage critical minerals company advancing tungsten projects in Nevada, including its flagship Pilot Mountain project, which has entered definitive feasibility following a pre‑feasibility study and initial reserve declaration.

Guardian Metal Resources PLC (GMTL) reported audited results for the year ended June 30, 2026, highlighting a transformational financing and project-advancement year while remaining pre-revenue. The Group recorded a loss of US$10.0 million, up from US$2.7 million in 2025, driven mainly by higher administrative, listing and share-based payment expenses as it scaled operations and completed a NYSE American listing.

Cash and cash equivalents rose sharply to US$52.5 million from US$1.9 million, supported by total equity fundraisings of US$89.3 million, including an upsized NYSE American IPO raising about US$68.3 million. Intangible exploration and evaluation assets increased to US$41.0 million as the company invested heavily in its Nevada tungsten portfolio. At Pilot Mountain, a Department of War DPA Title III investment of US$6.2 million funded a Pre‑Feasibility Study showing an after‑tax NPV of US$660.3 million and IRR of 59.6%, with 11.8Mt of Probable Reserves and planned first production targeted in Q4 2028. The company also advanced the Tempiute project, acquired strategic land and water rights, and ends FY2026 with a much stronger balance sheet to fund its next phase of studies and permitting.

Guardian Metal Resources PLC, a UK-based tungsten and critical minerals company, is an exploration- and development-stage issuer with no producing mines and no revenue from mining operations as of June 30, 2026. Its flagship Pilot Mountain project in Nevada has declared mineral resources and probable mineral reserves, supported by a pre-feasibility study, while other projects such as Tempiute remain at the exploration or early development stage.

The company’s future depends heavily on tungsten prices and access to substantial external financing. Economic assessments for Pilot Mountain are highly sensitive to the assumed ammonium paratungstate (APT) price, and prolonged price weakness could render projects uneconomic or force delays or curtailment of activities. Capital needs are expected to rise significantly as projects move through permitting, feasibility and potential construction, and there is no assurance that debt or equity funding will be available on acceptable terms.

Guardian is listed on AIM and its ADSs, each representing five ordinary shares, trade on NYSE American. It qualifies as an emerging growth company, a smaller reporting company and a foreign private issuer, which reduces some U.S. reporting and governance requirements but may offer shareholders less protection than U.S. domestic standards. Key risks highlighted include uncertainty in mineral resource and reserve estimates, cost overruns, potential changes to U.S. mining law, climate-transition and reclamation obligations, concentration of future sales in a small customer base, significant ownership by a single shareholder, share price volatility, and possible dilution from future equity financing.

Guardian Metal Resources PLC (GMTL) furnished its Annual Report for the year ended June 30, 2026, highlighting major progress at its Nevada tungsten portfolio, particularly the Pilot Mountain project. The company completed a Pre‑Feasibility Study showing production of approximately 15,916 tonnes of WO₃ over an initial eight‑year mine life, with forecast after‑tax free cash flow of US$1.058 billion. At a base case tungsten price of US$197,300 per tonne of WO₃, Pilot Mountain’s after‑tax NPV is US$660.3 million at an 8% discount rate and its internal rate of return is 59.6%, with a capital payback of about one year from first commercial production.

Guardian Metal strengthened its balance sheet through total equity fundraisings of US$89.3 million, including an upsized NYSE American IPO in March 2026 that raised gross proceeds of about US$68.3 million, plus a US$6.2 million DPA Title III investment from the U.S. Department of War. Cash at June 30, 2026 was US$52.459 million, up from US$1.873 million a year earlier. The group reported a loss of US$10.043 million, driven by higher administrative and listing costs and stepped‑up project spending, while investing US$26.470 million in mining assets. Management and the auditor both state that the group remains well funded and the financial statements are prepared on a going‑concern basis.

Guardian Metal Resources PLC (GMTL) received an amended Schedule 13G filing showing that Duquesne Family Office LLC and Stanley Druckenmiller together report beneficial ownership of 24,699,825 Ordinary Shares, representing 12.7% of the company’s Ordinary Shares, par value GBP 0.01 per share.

All voting and dispositive authority over these shares is reported as shared, with no sole voting or dispositive power. This Amendment No. 1 is filed to correct an error in the originally filed beneficial ownership statement.