Metallis Resources Inc. announced that it has staked 81 additional mining claims in the State of Idaho, increasing the size of the recently optioned Greyhound Property (the Property) to 677 hectares. This extended package of lode claims now covers all historic mineralization at the past producing Greyhound and Bulldog silver/gold mines, as well as encompassing prospective geology in underexplored terrain parallel and along strike northward of the 3.6 km mineralized Greyhound Shear. The new claims include a recently identified, important basin­like circular structure in the northwestern area of the Property, along with outcrops of intermediate to felsic intrusive rocks thought to be Laramide in age.

A geological hypothesis is being explored that this circular feature is related to a mineralized porphyritic stock belonging to the Great Falls Tectonic Zone as seen in other major nearby deposits. Recent exploration successes in the region have demonstrated that silver dominated vein deposits can be spatially related to large copper porphyry systems. With this in mind, the team has identified a number of elevated historic copper grades from the northwesterly end of the property. This geological concept would not have been understood when the majority of the historical work took place and is something the Metallis technical team will continue to investigate with further data compilation and future boots on the ground exploration.

The team has also taken note of elevated antimony grades identified in historic assays from the Greyhound area. Multiple historic crude ore samples taken from the Greyhound Mine have returned 1%-2% antimony and suggest there may be potential for this unique strategic battery metal as countries seek to expand their sources of critical minerals and develop local supply chains. Just 36 km northwest, along strike from the Greyhound property, resides Perpetua Resources' Stibnite Mine, with mineral reserves of 5 million ounces of gold and significant antimony.

Perpetua has recently been the recipient of multiple government grants totaling over USD 40 million to develop and secure the antimony resource from their project.