Confirmation Of Predictable Gold Recoveries Black Pine Oxide Gold Project

VANCOUVER- Liberty Gold Corp. reported on results from its Phase 5B metallurgical program at the Company’s Black Pine Oxide Gold Project in southeast Idaho. The new results confirm consistent, predictable gold recoveries across the primary ore bodies at Black Pine, further supporting a low cost, run-of-mine (“ROM”) heap leach processing flowsheet.

Consistent Gold Extractions and Leach Performance: Weighted average column leach gold extraction of 81.9% at an average head grade of 0.65 parts per million (ppm) gold (Au), with individual composites ranging from 52% to 94.5%. Phase 5B composites exhibit the typical Black Pine leach result of greater than 80% of the eventual gold extraction achieved in under 10 days. The feasibility recovery model has been updated with these new results and shows gold recoveries in line or slightly better than previous results across Rangefront and Discovery Zones.

Gold extractions from direct leach coarse crush bottle rolls (P80 of 1.68 millimeters (“mm”)) are aligned with column leach results (P80 of 16.9mm) at 78.4% vs 81.9%, respectively. This relationship further validates that gold leaching at Back Pine is highly insensitive to crush size. Phase 5B testing focused on infill sampling within the primary mining phases of Rangefront and Discovery Zones. Feasibility level metallurgical work will be completed in H1, 2026. It is anticipated that with resource growth at Rangefront, additional test work may be required to achieve variability coverage.

Jon Gilligan, President and CEO, said, “We are nearing completion of our comprehensive metallurgical program at Black Pine. Column gold extractions of 80 to 90 percent with rapid leach kinetics underscore the significant potential of this oxide gold asset. These results also confirm Rangefront as the premier leaching ore at Black Pine with up to a 10 percent recovery improvement over the Discovery zone. We look forward to further results from the bulk sample, large diameter columns and the ongoing work at Rangefront as it grows to potentially become the most significant gold mineralized zone at Black Pine.”

The Phase 5B program was designed to improve sample coverage in the main deposit areas and confirm consistency of gold extraction within the main rock types. Column leach tests showed silver (Ag) extractions up to 68.1%, with an average of 19%. These silver grades and extractions are in line with previous results.

Phase 5B gold extractions are in line with or slightly better than previous metallurgical testing results from both Discovery and Rangefront Zones, verifying strong recovery in the two largest mining phases at Black Pine. The consistent correlation between bottle roll and column leach data continues to reinforce that gold extraction is insensitive to particle size. This insensitivity supports the feasibility of low-cost, ROM leach processing for Black Pine oxide ores.

Liberty Gold has an ongoing feasibility-level metallurgical program for Black Pine:

1) Phase 6: Seven (Six in-pit and one surface) 20 tonne ROM surface bulk samples sourced from the main mineralized lithology types, are being tested in Pilot-Scale columns (4 feet diameter x 20 feet high). Three bulk samples are currently under leach and the remaining four are in preparation. Results are expected in H1 2026.

2) Phase 7: Nine cut-off grade variability composites currently under column leach. These tests are to verify gold extraction at the lowest end of the grade/recovery curve in the current recovery model. Leaching of these columns will be completed in September and reported in Q4, 2025.

3) Phase 8: 24 sonic drill holes (~1,400 meters) have been completed in the legacy heap leach pad, with initial gold assays received. This material will be tested for the potential to act as over-liner material and also as direct leach feed. Metallurgical composites have been shipped to Newfields and Forte Dynamics and test work will begin late in Q3 2025.

These programs are designed to finalize predicted gold leach recoveries and optimize process design criteria as inputs to the Feasibility Study targeted for completion in Q4 2026. Additional phases of metallurgical work are being evaluated for improved recovery model precision going into detailed mine/process design and eventual production.