Strategic Partnership Signed to Advance Domestic Tungsten Mining and Processing for U.S. Defense Applications LONDON, UK / ACCESS Newswire / July 8, 2026 / Guardian Metal Resources plc

Strategic Partnership Signed to Advance Domestic Tungsten Mining and Processing for U.S. Defense Applications LONDON, UK / <a href='https://www.accessnewswire.com/'>ACCESS Newswire</a> / July 8, 2026 / Guardian Metal Resources plc (NYSE.A:GMTL)(LON:GMET)(OTCQB:<a class="ticker" href="https://www.benzinga.com/quote/GMTLF">GMTLF</a>), a strategic exploration company focused on tungsten in Nevada, USA, is pleased to announce that it has entered into a strategic partnership (the "Partnership") with the Montana Mining Association ("MMA") to collaborate on a tungsten mining and recovery pilot program supporting domestic defense applications. The Partnership is also being advanced in conjunction with Montana Technological University ("MTU") and the Army Research Laboratory ("ARL").As part of the Partnership, Guardian Metal will supply stockpiled legacy ore from its Tempiute Tungsten project ("Tempiute" or the "Project"), located near Rachel, Nevada, approximately 150 miles northeast of Las Vegas. Tempiute, formerly known as the Emerson Tungsten Mine, is a significant past producing tungsten mine, which was originally discovered in 1916 and most recently operated during the 1980s.As a critical defense metal, tungsten has been formally designated a strategic priority by the U.S. government. Guardian Metal's mission is to advance its co-flagship projects, Tempiute and Pilot Mountain, as a cornerstone of U.S. tungsten supply, directly supporting national efforts to reshore production. This strategy is expected to reduce reliance on foreign supply chains, strengthen economic and defense security, and deliver long-term value for shareholders.KEY HIGHLIGHTS<table style="overflow:auto; height: 90px; display: block;"><tbody><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">Guardian Metal has entered into the Partnership to advance an entirely U.S.-based tungsten mining and recovery pilot program to support domestic defense applications.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">Tempiute selected as a U.S. feedstock source, with an initial ~250-400 tonnes of stockpiled legacy ore to be transported from Tempiute to Philipsburg, Montana, for trial processing at the partner milling and processing facility.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">First shipments of legacy ore are expected by late summer 2026, subject to completion of metallurgical test work currently underway at partner laboratories in both the U.S. and U.K., and pilot-scale test work to be completed on-site in Montana.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">The program is focused on upscaling domestic tungsten-rich sources of historical mine tailings and legacy ore stockpiles to evaluate pathways toward commercial production of tungsten metal powder for defense-relevant applications within the U.S.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">The Partnership further validates Guardian Metal's strategy of advancing its co-flagship tungsten assets, Tempiute and Pilot Mountain, towards a fully domestic mine-to-market tungsten supply chain.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">If the initial program is successful, further shipments of tungsten-rich material from Tempiute could be supplied as part of an expanded program.</td></tr></tbody></table>Matt Vincent, Executive Director of MMA, commented:"We are excited to work with Guardian Metal on this Partnership, which we feel is incredibly important to the industry and our nation's security. Guardian Metal's Tempiute material represents what we believe will prove to be an important domestic source of tungsten for this Partnership, as well as a demonstration of our Association's ability to effectively establish a broader network of critical minerals projects across the Mountain West."Oliver Friesen, CEO of Guardian Metal Resources, commented:"We are delighted to enter into this Partnership with MMA, ARL, and MTU to advance this strategically important pilot program. The selection of Tempiute as a feedstock source is a strong endorsement of the strategic significance of Guardian Metal's entirely Nevada-based tungsten project portfolio."At a time when tungsten supply security has never been more critical to U.S. defense and industrial capability, this initiative represents a tangible step toward building an entirely domestic supply chain, free from reliance on foreign sources."Forward Looking StatementsThis announcement contains forward-looking statements relating to expected or anticipated future events and anticipated results that are forward-looking in nature, and, as a result, are subject to certain risks and uncertainties, including general economic, market and business conditions, competition for qualified staff, the regulatory process and actions, technical issues, new legislation, potential delays or changes in plans, uncertainties resulting from operating in a new political jurisdiction, uncertainties regarding the results of exploration, the timing and granting of prospecting rights, the timing and granting of regulatory and other third party consents and approvals, Guardian Metal's or any third party's ability to execute and implement future plans, and the occurrence of unexpected events.Forward-looking statements are subject to risks and uncertainties, including those described in the Company's filings with the U.S. Securities and Exchange Commission. Guardian Metal undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by law.This announcement does not purport to be full or complete. No reliance may or should be placed by any person for any purpose on the information contained in this announcement or its accuracy, fairness or completeness. The information in this announcement is subject to change.For further information visit <a rel="nofollow" href="https://pr.report/nhba">www.Guardianmetalresources.com</a> or contact the following:<table style="border-color:currentcolor;border-width:medium;"><tbody><tr><td style="border:1pt solid windowtext;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Guardian Metal Resources plcOliver Friesen (CEO)</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:1pt solid windowtext;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 7583 8304</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Cairn Financial Advisers LLPNominated AdviserSandy Jamieson/Jo Turner/Louise O'Driscoll</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 7213 0880</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">BerenbergJoint Broker and Financial AdviserJennifer Lee/Ivan Briechle</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 3207 7800</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Tamesis Partners LLPJoint BrokerCharlie Bendon/Richard Greenfield</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 3882 2868</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">TavistockFinancial PR in the UKEmily Moss/Josephine Clerkin</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 7920 3150 /+44 (0) 7788 554035guardianmetal@tavistock.co.uk</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Edelman SmithfieldFinancial PR in the US</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">guardianmetal@edelmansmithfield.com</td></tr></tbody></table>About Guardian Metal ResourcesGuardian Metal Resources PLC (NYSE.A:GMTL)(LON:GMET)(OTCQB:<a class="ticker" href="https://www.benzinga.com/quote/GMTLF">GMTLF</a>) 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.This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact <a rel="nofollow" href="mailto:rns@lseg.com">rns@lseg.com</a> or visit <a rel="nofollow" href="https://pr.report/nhbb">www.rns.com</a>.SOURCE: Guardian Metal Resources PLC View the original <a href='https://www.accessnewswire.com/newsroom/en/metals-and-mining/guardian-metal-resources-plc-announces-tungsten-mining-and-processing-strategic-p-1188050'>press release</a> on ACCESS Newswire 
 <img src="https://app.accessnewswire.com/img.ashx?id=1188050" width="0" height="0"/>

GMTLF

Guardian Metal Resources PLC Announces Tungsten Mining & Processing Strategic Partnership

Guardian Metal partners to advance domestic US tungsten supply chain

<section class="insight" data-version="1">
 <section data-block="information">
 <h3>Information</h3>
 Strategic Partnership Signed to Advance Domestic Tungsten Mining and Processing for U.S. Defense Applications LONDON, UK / ACCESS Newswire / July 8, 2026 / Guardian Metal Resources plc
 </section>

 <section data-block="ai-summary-paragraph">
 <h3>AI Summary</h3>
 Guardian Metal Resources announces a strategic U.S. tungsten pilot with MMA, MTU, and ARL to advance domestic mining and processing. The program uses Tempiute stockpiled ore to Montana-based facility; first shipments expected late summer 2026, depending on metallurgical tests. The effort supports a fully domestic mine-to-market tungsten supply chain, potentially boosting GMTL&#039;s defense exposure and long-term value.
 </section>

 <section data-block="ai-summary-bullets">
 <h3>Key Points</h3>
 <ul><li>Guardian Metal forms U.S.-based tungsten pilot with MMA, MTU, ARL.</li><li>Tempiute legacy ore stockpile (~250-400 tonnes) to Montana for testing.</li><li>First shipments expected by late summer 2026, pending metallurgical tests.</li><li>U.S. DoW invested US$6.2M in Golden Metal Resources USA LLC in 2025.</li></ul>
 </section>

 <section data-block="companies-mentioned">
 <h3>Companies Mentioned</h3>
 <ul><li>Guardian Metal Resources PLC (GMTL / GMTLF / GMET): Leads partnership; domestic tungsten strategy and Nevada assets.</li><li>Montana Mining Association (MMA): Strategic partner for domestic tungsten project development.</li><li>Montana Technological University (MTU): Research partner for metallurgical testing and pilot work.</li><li>Army Research Laboratory (ARL): Defense lab involved in the tungsten pilot program.</li><li>Golden Metal Resources USA LLC (Golden Metal (subsidiary)): DoW US$6.2M investment; supports Pilot Mountain PFS.</li></ul>
 </section>

 <section data-block="category">
 <h3>Industry News</h3>
 Industry News: reports a strategic partnership advancing domestic tungsten supply and defense-related pilot program in the U.S., aligning GMTL&#039;s assets with national security objectives.
 </section>

 <section data-block="market-moving">
 <h3>Market-Moving</h3>
 <ul><li>Domestic tungsten supply push could lift GMTLF valuation with progress.</li><li>Late-summer 2026 shipments could serve as near-term catalysts.</li><li>Nevada-focused assets reduce geopolitical supply risk.</li><li>US government backing via DoW funding underscores defense demand.</li></ul>
 </section>

 <section data-block="key-facts">
 <h3>Key Facts</h3>
 <ul><li>GMTL ticker GMTL on NYSE American; GMET on LON; GMTLF on OTCQB; listing date March 20, 2026.</li><li>Initial Tempiute stockpile ore ~250-400 tonnes to Philipsburg, MT.</li><li>First shipments expected by late summer 2026, pending metallurgical tests in US/UK.</li><li>US DoW invested US$6.2M in Golden Metal Resources USA LLC in July 2025.</li><li>Tempiute discovered 1916; last operated in the 1980s; Nevada-based assets.</li></ul>
 </section>

 <section data-block="trading-thesis">
 <h3>Trading Thesis</h3>
 GMTLF likely to react positively on pilot milestones with near-term catalysts through late-2026.
 </section>
</section>


Strategic Partnership Signed to Advance Domestic Tungsten Mining and Processing for U.S. Defense Applications LONDON, UK / <a href='https://www.accessnewswire.com/'>ACCESS Newswire</a> / July 8, 2026 / Guardian Metal Resources plc (NYSE.A:GMTL)(LON:GMET)(OTCQB:<a class="ticker" href="https://www.benzinga.com/quote/GMTLF">GMTLF</a>), a strategic exploration company focused on tungsten in Nevada, USA, is pleased to announce that it has entered into a strategic partnership (the "Partnership") with the Montana Mining Association ("MMA") to collaborate on a tungsten mining and recovery pilot program supporting domestic defense applications. The Partnership is also being advanced in conjunction with Montana Technological University ("MTU") and the Army Research Laboratory ("ARL").As part of the Partnership, Guardian Metal will supply stockpiled legacy ore from its Tempiute Tungsten project ("Tempiute" or the "Project"), located near Rachel, Nevada, approximately 150 miles northeast of Las Vegas. Tempiute, formerly known as the Emerson Tungsten Mine, is a significant past producing tungsten mine, which was originally discovered in 1916 and most recently operated during the 1980s.As a critical defense metal, tungsten has been formally designated a strategic priority by the U.S. government. Guardian Metal's mission is to advance its co-flagship projects, Tempiute and Pilot Mountain, as a cornerstone of U.S. tungsten supply, directly supporting national efforts to reshore production. This strategy is expected to reduce reliance on foreign supply chains, strengthen economic and defense security, and deliver long-term value for shareholders.KEY HIGHLIGHTS<table style="overflow:auto; height: 90px; display: block;"><tbody><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">Guardian Metal has entered into the Partnership to advance an entirely U.S.-based tungsten mining and recovery pilot program to support domestic defense applications.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">Tempiute selected as a U.S. feedstock source, with an initial ~250-400 tonnes of stockpiled legacy ore to be transported from Tempiute to Philipsburg, Montana, for trial processing at the partner milling and processing facility.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">First shipments of legacy ore are expected by late summer 2026, subject to completion of metallurgical test work currently underway at partner laboratories in both the U.S. and U.K., and pilot-scale test work to be completed on-site in Montana.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">The program is focused on upscaling domestic tungsten-rich sources of historical mine tailings and legacy ore stockpiles to evaluate pathways toward commercial production of tungsten metal powder for defense-relevant applications within the U.S.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">The Partnership further validates Guardian Metal's strategy of advancing its co-flagship tungsten assets, Tempiute and Pilot Mountain, towards a fully domestic mine-to-market tungsten supply chain.</td></tr><tr><td style="padding:0cm 5.4pt;vertical-align:top;width:6pt;"><ul><li></li></ul></td><td style="padding:0cm 5.4pt;vertical-align:top;width:423.7pt;">If the initial program is successful, further shipments of tungsten-rich material from Tempiute could be supplied as part of an expanded program.</td></tr></tbody></table>Matt Vincent, Executive Director of MMA, commented:"We are excited to work with Guardian Metal on this Partnership, which we feel is incredibly important to the industry and our nation's security. Guardian Metal's Tempiute material represents what we believe will prove to be an important domestic source of tungsten for this Partnership, as well as a demonstration of our Association's ability to effectively establish a broader network of critical minerals projects across the Mountain West."Oliver Friesen, CEO of Guardian Metal Resources, commented:"We are delighted to enter into this Partnership with MMA, ARL, and MTU to advance this strategically important pilot program. The selection of Tempiute as a feedstock source is a strong endorsement of the strategic significance of Guardian Metal's entirely Nevada-based tungsten project portfolio."At a time when tungsten supply security has never been more critical to U.S. defense and industrial capability, this initiative represents a tangible step toward building an entirely domestic supply chain, free from reliance on foreign sources."Forward Looking StatementsThis announcement contains forward-looking statements relating to expected or anticipated future events and anticipated results that are forward-looking in nature, and, as a result, are subject to certain risks and uncertainties, including general economic, market and business conditions, competition for qualified staff, the regulatory process and actions, technical issues, new legislation, potential delays or changes in plans, uncertainties resulting from operating in a new political jurisdiction, uncertainties regarding the results of exploration, the timing and granting of prospecting rights, the timing and granting of regulatory and other third party consents and approvals, Guardian Metal's or any third party's ability to execute and implement future plans, and the occurrence of unexpected events.Forward-looking statements are subject to risks and uncertainties, including those described in the Company's filings with the U.S. Securities and Exchange Commission. Guardian Metal undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by law.This announcement does not purport to be full or complete. No reliance may or should be placed by any person for any purpose on the information contained in this announcement or its accuracy, fairness or completeness. The information in this announcement is subject to change.For further information visit <a rel="nofollow" href="https://pr.report/nhba">www.Guardianmetalresources.com</a> or contact the following:<table style="border-color:currentcolor;border-width:medium;"><tbody><tr><td style="border:1pt solid windowtext;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Guardian Metal Resources plcOliver Friesen (CEO)</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:1pt solid windowtext;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 7583 8304</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Cairn Financial Advisers LLPNominated AdviserSandy Jamieson/Jo Turner/Louise O'Driscoll</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 7213 0880</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">BerenbergJoint Broker and Financial AdviserJennifer Lee/Ivan Briechle</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 3207 7800</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Tamesis Partners LLPJoint BrokerCharlie Bendon/Richard Greenfield</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 20 3882 2868</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">TavistockFinancial PR in the UKEmily Moss/Josephine Clerkin</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">Tel: +44 (0) 7920 3150 /+44 (0) 7788 554035guardianmetal@tavistock.co.uk</td></tr><tr><td style="border-bottom:1pt solid windowtext;border-left:1pt solid windowtext;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:258.3pt;">Edelman SmithfieldFinancial PR in the US</td><td style="border-bottom:1pt solid windowtext;border-left:medium none currentcolor;border-right:1pt solid windowtext;border-top:medium none currentcolor;padding:0cm 5.4pt;vertical-align:top;width:166.4pt;">guardianmetal@edelmansmithfield.com</td></tr></tbody></table>About Guardian Metal ResourcesGuardian Metal Resources PLC (NYSE.A:GMTL)(LON:GMET)(OTCQB:<a class="ticker" href="https://www.benzinga.com/quote/GMTLF">GMTLF</a>) 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.This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact <a rel="nofollow" href="mailto:rns@lseg.com">rns@lseg.com</a> or visit <a rel="nofollow" href="https://pr.report/nhbb">www.rns.com</a>.SOURCE: Guardian Metal Resources PLC View the original <a href='https://www.accessnewswire.com/newsroom/en/metals-and-mining/guardian-metal-resources-plc-announces-tungsten-mining-and-processing-strategic-p-1188050'>press release</a> on ACCESS Newswire 
 <img src="https://app.accessnewswire.com/img.ashx?id=1188050" width="0" height="0"/>

Guardian Metal Resources announces a strategic U.S. tungsten pilot with MMA, MTU, and ARL to advance domestic mining and processing. The program uses Tempiute stockpiled ore to Montana-based facility; first shipments expected late summer 2026, depending on metallurgical tests. The effort supports a fully domestic mine-to-market tungsten supply chain, potentially boosting GMTL's defense exposure and long-term value.

Guardian Metal Resources PLC Announces Tungsten Mining & Processing Strategic Partnership

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