Significant High-Grade Tungsten and Silver Mineralization Verified at Tungstonia Project.

Vancouver, Canada – TheNewswire - August 7, 2025 – Spartan Metals Corp. (“Spartan” or the “Company”) (TSX-V: W) is pleased to provide assay results and project updates for its recently closed acquisition of the Eagle Property (the “Property”) announced on July 31, 2025. The Eagle property comprises 244 lode mineral claims in White Pine County, Nevada (Figure 1). The Property is 100% owned by the Company.

The Property is a tungsten-copper porphyry and skarn system which hosts one of the highest-grade past producing tungsten districts in the United States with the Tungstonia and Rees mine operations historically producing a reported 8,352 tonnes of tungsten trioxide (WO3) at average grades of 0.6-1.0% between 1917-19561. The Property also exhibits significant concentrations of rubidium, copper, silver, antimony as well as lesser lead and zinc, which is interpreted as part of the larger metal zonation pattern of the porphyry system across the district.

William Pettigrew, Spartan’s, CEO commented, “We were excited to conduct field reconnaissance and rock chip sampling for the purposes of verifying historic data and results from Ridgeline Minerals Corp’s 2024 rock chip sampling program as well as testing mineralization at previously unreported locations at Tungstonia. The results confirm the historic and previous work and provide new data approximately 200-400m down strike from historic production locations at Tungstonia”.

Mr. Pettigrew continues, “These encouraging results validate historic and previous sampling and highlight the potential for the Eagle Property to be a significant source of tungsten, rubidium, antimony, silver, and copper in the future. We look forward to continuing field activities at the Tungstonia and Rees Projects and developing the Project further.”

Figure 1 Location map of Eagle Project showing the Tungstonia and Rees areas, located in White Pine County, Nevada

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Tungstonia Project

Currently known tungsten mineralization occurs in 5 historically mined quartz-huebnerite (MnWO4) veins – named Veins 1 through 5 - hosted in granite. A total of 6 rock chip samples were taken at Tungstonia. Three samples were intended to validate results obtained by Ridgeline Minerals (RDG) in 2024 at Veins 1 and 2, which were the primary historically mined veins. The remaining three samples were focused on historically mapped but unsampled Vein 3 and 4 locations. All samples were taken at surface.

Figures 2 and 3 illustrate the RDG and Spartan sample locations with corresponding assay results. Ridgeline results indicated 0.54% WO3 and 13.5 g/t Ag at Vein 1 and 1.49% WO3 and 50.5 g/t Ag at Vein 2. Spartan results for Vein 1 were 1.97% WO3 and 308 g/t Ag (TS-25001) and for Vein 2 were 1.36% WO3 and 31.9 g/t Ag (TS-25002) and 1.88% WO3 and 12.5 g/t Ag (TS-25003). Spartan samples at both veins were taken within 10m of the RDG samples and the resulting assays validate the previous work.

Veins 3 and 4 were sampled extensively via trenching by the US Bureau of Mines (USBM) in about 1942 and associated surface mapping indicated these veins extended approximately 400m to the southwest but did not have reported assays. Spartan’s activities focused on testing the mapped but unsampled locations. Assays for Vein 3 were 2.37% WO3 and 9.6 g/t Ag (TS-25005) and 1.54% WO3 and 0.9 g/t Ag (TS-25006) with Vein 4 sample returning 0.92% WO3 and 5.1 g/t Ag (TS-25004)

These samples clearly verify the historic and Ridgeline results and further demonstrate the high-grade tungsten mineralization at the Tungstonia Project.  

 

Figure 2 Map with RDG 2024 (black) and Spartan (purple) samples showing verification of RDG results and overall W-Ag Potential at Tungstonia

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Figure 3 Close up view of Spartan (purple) and RDG (black)sampling at similar locations. Previous USBM trench left significant lengths of Veins 3 and 4 unsampled. Spartan’s sampling at the southernmost extent of mapped/unsampled veins confirms high-grade tungsten and silver mineralization up to 400m away from the previous USBM activity.

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QA/QC Procedures

Rock chip samples were taken by hand with rock hammer across veins to obtain an approximate 2-kilogram sample. Samples were submitted to American Assay Lab (AAL) of Sparks, Nevada, which is a certified and accredited laboratory, independent of the Company. Samples are prepared using industry standard-prep methods and analyzed using method IM-4AB52 (52 element suite: 0.5g 4-acid plus boric acid digestion/ICP-OES or ICP-MS with 4AB ore grade for overlimit W samples) and IM-NFEx for W. AAL undertakes its own internal coarse and pulp duplicate analysis to ensure proper sample preparation and equipment calibration. Spartan’s QAQC includes regular insertion of CRM standards, duplicates, and blanks with a stringent review of results completed by the Company’s Qualified Person, Brett R. Marsh, President, Spartan Exploration Nevada.

The technical information contained in this news release has been prepared under the supervision of, and approved by Brett R. Marsh, CPG. Mr. Marsh is President of Spartan Exploration Nevada Corp; a 100% owned subsidiary of Spartan Metals Corp and a “qualified person” as defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects.

 

1 Nevada Bureau of Mines and Geology, 1988, Bulletin 105 p213-217

  

About Spartan Metals Corp.

Spartan Metals is focused on developing critical minerals projects in top-tier mining jurisdictions in the Western United States, with an emphasis on building a portfolio of diverse strategic defense minerals such as Tungsten, Rubidium, Antimony, Bismuth, and Arsenic.

 

Spartan’s flagship project is the Eagle Project in eastern Nevada that consists of the highest-grade historic tungsten resource in the USA (the past-producing Tungsonia Mine) along with significant under-defined resources consisting of: high-grade rubidium; antimony; bismuth; indium; as well as precious and base metals. More information about Spartan Metals can be found at www.SpartanMetals.com  

 

On behalf of the Board of Spartan

“William Pettigrew”

CEO

 

Further Information:

William Pettigrew

+1 604-313-8585

wcpettigrew@icloud.com

 

Neither the TSX Venture Exchange nor its Regulation Service Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this press release

 

Forward Looking Statements

 

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