Guardian Metal Resources PLC Announces Tempiute - Drilling Operations Underway

Rhea-AI Summary

Guardian Metal Resources (OTCQX:GMTLF) has launched its first diamond drilling program at the Tempiute tungsten project in Nevada, marking the first drilling activity at the site since the 1980s. The program targets multiple brownfield exploration sites and new skarn zones along the eastern contact zone.

The Phase I program encompasses 19 drill targets, with Phase II targets to be determined based on initial results. The project's proximity to ALS Laboratory in Reno enables efficient sample processing and regular results updates. Tempiute, historically the USA's largest tungsten mine in the 1980s, represents a strategic asset in Guardian Metal's mission to establish domestic tungsten supply chains for U.S. defense and economic security.

Positive

• First drilling program at Tempiute since the 1980s, exploring a historically significant tungsten mine
• Strategic location near ALS Laboratory enables quick processing and continuous news flow
• Project aligns with U.S. government's strategic priority for domestic tungsten production
• Multiple brownfield targets identified through detailed mapping

Negative

• Results and timeline uncertainties typical of exploration projects
• Success of the drilling program not guaranteed

LONDON, UK / ACCESS Newswire / September 5, 2025 / Guardian Metal Resources plc (LON:GMET)(OTCQX:GMTLF), a strategic development and mineral exploration company focused on tungsten in Nevada, USA, is pleased to announce an exploration update at the Company's Tempiute tungsten project ("Tempiute" or the "Project") located 250 miles southeast of the Company's Pilot Mountain project in Nevada, USA. Tempiute is a significant past-producing tungsten mine and during the 1980s was the largest in the USA.

Guardian Metal's mission is to establish our co-flagship projects as the cornerstone of U.S. tungsten supply, directly supporting national efforts to reshore production of this critical defence mineral. With tungsten designated as a strategic priority by the U.S. government, the Company is advancing its two flagship Nevada projects-Tempiute and Pilot Mountain. By unlocking domestic tungsten resources, Guardian Metal aims to help reduce reliance on foreign supply chains, strengthen U.S. economic and defence security, and deliver long-term value for shareholders.

HIGHLIGHTS

• The Company has now commenced its first ever diamond drilling programme targeting multiple brownfield exploration targets at Tempiute. This will be the first drilling programme at Tempiute since the 1980s.

• Drilling will target along-strike extensions of historically mined orebodies confirmed by surface geological mapping, as well as new skarn zones defined along the recently staked eastern contact zone. Planned drill holes are designed to intersect mineralised skarn down dip.

• 19 drill targets are planned for the Phase I program, with Phase II targets to be defined progressively as results from Phase I drilling are received.

• Due to the Project's proximity to ALS Laboratory Group's Reno, NV location, drill core samples will be logged, processed and shipped for assay testing in batches, therefore allowing for semi-continuous news flow throughout the duration of the campaign.

• The Company's CEO will be on site this month to oversee the start of drilling at Tempiute, tour ongoing work at Pilot Mountain, and for meetings with key stakeholders.

Oliver Friesen, CEO of Golden Metal, commented:

"Our team is very excited to have commenced the first diamond drilling programme at Tempiute since the 1980s. With multiple brownfield targets identified through detailed mapping, as well as newly defined zones along the eastern contact, this campaign provides a rare opportunity to test highly prospective ground in one of Nevada's most important historical tungsten districts.

"Importantly, the close proximity of the ALS facility in Reno means we expect a steady flow of assay results throughout the programme, facilitating regular updates to our shareholders. Combined with the momentum already building at Pilot Mountain, we are advancing both of our Nevada tungsten assets in parallel, firmly positioning Guardian Metal at the centre of U.S. efforts to strengthen domestic critical mineral supply chains."

Forward Looking Statements

This 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, such as general economic, market and business conditions, competition for qualified staff, the regulatory process and actions, technical issues, new legislation, uncertainties resulting from potential delays or changes in plans, uncertainties resulting from working in a new political jurisdiction, uncertainties regarding the results of exploration, uncertainties regarding the timing and granting of prospecting rights, uncertainties regarding the timing and granting of regulatory and other third party consents and approvals, uncertainties regarding the Company's or any third party's ability to execute and implement future plans, and the occurrence of unexpected events.

Actual results achieved may vary from the information provided herein as a result of numerous known and unknown risks and uncertainties and other factors.

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 20 7213 0880
Shard Capital Partners LLP Lead Broker Damon Heath/Erik Woolgar	Tel: +44 (0) 20 7186 9000

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 rns@lseg.com or visit www.rns.com.

SOURCE: Guardian Metal Resources PLC

View the original press release on ACCESS Newswire

FAQ

What is the significance of Guardian Metal's Tempiute drilling program in 2025?

The program represents the first drilling activity at Tempiute since the 1980s, targeting 19 drill sites in Phase I to explore extensions of historically mined orebodies and new skarn zones. The site was previously the largest tungsten mine in the USA.

How many drill targets has GMTLF identified for the Tempiute Phase I program?

Guardian Metal has identified 19 drill targets for the Phase I program, with Phase II targets to be defined based on Phase I results.

Where is Guardian Metal's Tempiute project located?

The Tempiute project is located 250 miles southeast of the company's Pilot Mountain project in Nevada, USA.

What is the strategic importance of GMTLF's Tempiute tungsten project?

Tempiute is strategically important as it aims to establish domestic U.S. tungsten supply, supporting national defense needs and reducing reliance on foreign supply chains. Tungsten is designated as a strategic priority by the U.S. government.

How will Guardian Metal process and report drilling results from Tempiute?

Due to proximity to ALS Laboratory in Reno, drill core samples will be processed and tested in batches, enabling semi-continuous news flow throughout the drilling campaign.