Spartan Metals Reports Significant Silver-Antimony-Copper Assays with Grades up to 1,927 g/t Ag, 0.67% Sb, and 1.83% Cu from Past Producing Antelope Mine, Nevada
Spartan reports high-grade silver-antimony-copper intercepts at Antelope, extending district potential despite pre-revenue status and elevated capital demands.

Spartan Metals Corp. reported high-grade silver, antimony, and copper assays from backpack core drilling and surface sampling at the past-producing Antelope Mine within its 100%-owned Eagle Project in Nevada. Key intercepts include 688 g/t Ag over 0.3 m (0.67% Cu, 0.30% Sb) and surface rock samples returning Ag up to 1,927 g/t, Sb up to 0.67%, and Cu up to 1.83%.
The mineralized footprint has expanded to approximately 1.3 km by 0.6 km, significantly wider than the historical mine extent of approximately 50 m along strike. The company outlined its 2026 exploration roadmap, which includes continued surface and backpack sampling, ground geophysics, and approximately 3,000 meters of diamond core drilling scheduled for early to mid-August 2026. QA/QC is handled by American Assay Lab with review by Qualified Person Brett R. Marsh.
Spartan Metals Corp. (W) released an update that validates its district-scale exploration thesis, though the company remains in the pre-resource, pre-revenue stage. The market has already priced in the exploration phase through prior announcements, including the Victorio acquisition in March 2026 and the April 2026 private placement. The stock has declined approximately 30% from its March high, indicating the market is awaiting economic definition, such as resources or a preliminary economic assessment, rather than reacting to incremental assay highlights.
Spartan Metals Corp. (W) owns the Eagle Project, a 100%-held asset spanning approximately 36.5 km² (9,033 acres) in White Pine County, Nevada. The project encompasses past-producing Tungstonia, Yellow Jacket, Antelope, and Rees mines, featuring porphyry, skarn, and carbonate replacement deposit (CRD) geologies. The company’s primary focus is on tungsten (W) and rubidium (Rb), with secondary targets including silver (Ag), antimony (Sb), copper (Cu), arsenic (As), bismuth (Bi), and indium (In). Nevada is recognized as a Tier-1 mining jurisdiction, offering streamlined permitting initiatives for critical minerals.