Guardian Metal Resources (NYSE:GMTL), a tungsten exploration company advancing two Nevada projects, will publish the pre-feasibility study (PFS) for its Pilot Mountain Tungsten Project on 30 June.
The study is underpinned by a $6.2 million Title III Defense Production Act investment from the U.S. Department of Defense, awarded in July 2025 to Guardian Metal's wholly owned subsidiary Golden Metal Resources (USA) LLC.
The company describes completion of the PFS as a significant development milestone and a step toward establishing the first new domestically mined U.S. tungsten operation in more than 15 years.
Samuel Engineering and a group of specialist engineering and environmental firms collaborated with Guardian Metal's in-house team on the study.
Following publication, Guardian Metal will host a live investor presentation on 1 July at 11:00 ET to discuss the results and outline next steps for the project.
