Perpetua Resources Corp. (NASDAQ: PPTA) (TSX: PPTA) reported significant new mineral discoveries at its Stibnite Gold Project in Valley County, Idaho, on Aug. 6, 2026, marking the first exploratory drilling in nearly a decade. The results include high-grade gold, antimony, and a newly identified gold-tungsten zone, positioning the project as a potential dual-source of critical minerals for the United States. These findings aim to sustain or exceed the project’s estimated annual average production of 463,000 gold ounces beyond the first four years of operations.

The exploration program, approved by the U.S. Forest Service in 2025, focuses on testing targets within permitted pits and adjacent areas. Jon Cherry, President and CEO of Perpetua Resources, stated that the priority is testing higher-grade gold and antimony targets that could supplement the existing mine plan. "Our focus is on drilling areas that align with our currently planned mining sequence with potential to directly add value," Cherry said. The company also submitted tungsten exploration funding proposals to U.S. Government Agencies to supplement its current 10,000-meter drilling program.

Key Drilling Intercepts

Recent drilling totaled 8,340 meters, split between geotechnical and exploration work. Notable intercepts from the Clark Tunnel Fault Zone (CTFZ) and Huckleberry Fault Zone (HFZ) at Yellow Pine, and the NDMEA zone at Hangar Flats, are detailed below.

Note: True widths are estimated to be approximately 85-95% of reported interval lengths. Antimony and tungsten assays for Hangar Flats holes SB519-SB527 were performed using portable XRF equipment.

Tungsten Emerges as Strategic Opportunity

The discovery of tungsten alongside gold and antimony establishes it as a new exploration focus. Historically, Stibnite produced more tungsten than any other U.S. mine from 1941 to 1945, contributing approximately 50% of all tungsten consumed by the United States during the Second World War and Korean War. Recent Chinese export restrictions on critical minerals imposed in February 2025 have increased the strategic importance of domestic supply, pushing tungsten Ammonium Paratungstate (APT) prices up more than 500% from their 2024 lows.

Perpetua Resources believes its land package is uniquely positioned to help the U.S. government secure a second critical mineral, in addition to antimony. The company’s grant proposal seeks funding for drilling, sampling, metallurgical analysis, and resource evaluation beneath the Hangar Flats pit. This work aims to test known high-grade antimony-tungsten mineralization at depth while simultaneously testing significant gold and antimony resources not included in the current mine plan.

What the Numbers Show

The drilling results highlight a diversification of value drivers at Stibnite beyond gold. While the primary mine plan targets an estimated annual average production of 463,000 gold ounces, the new intercepts reveal substantial concentrations of antimony and tungsten in close proximity. For instance, Hole SB522 returned 9.8 meters of 8.3% antimony and 4.6% tungsten, indicating high-grade critical mineralization that could enhance the project’s strategic value. With 3.1 million ounces of indicated and inferred gold resources and 99.8 million pounds of antimony resources located outside current reserves, the company faces opportunities to expand its resource base, though any development outside the currently permitted scope will require additional regulatory review and permitting.

B. Riley Securities analyst Lucas Pipes has maintained a Buy rating on Perpetua Resources (NASDAQ: PPTA) while lowering the price target from $40 to $30. The adjustment signals a more conservative valuation outlook for the mining and exploration company, though the firm continues to view the stock as an attractive investment opportunity within its sector.

The price target reduction reflects updated financial assumptions or market conditions impacting the company's near-term valuation. Despite the lower ceiling, the maintenance of the Buy rating indicates that B. Riley Securities still sees significant upside potential relative to current market prices.

Analyst Recommendation Details

Investors should note that the change in price target does not alter the fundamental recommendation but adjusts the expected return horizon. This move aligns with broader market recalibrations in the resources sector.

What the Numbers Show

The 25% reduction in the price target suggests a tightening of margin expectations or a reassessment of commodity price trajectories affecting Perpetua Resources' projected cash flows. While the Buy rating remains intact, the gap between the current market price and the new target is narrower than previously estimated, implying reduced upside potential compared to earlier forecasts.