Volta Initiates Gallium Recovery Study with Laurentian University, Sudbury, Canada

Executive Summary

• Volta Metals began laboratory‑scale bioleaching tests at Laurentian University targeting gallium and rare earth elements (REEs) from the Springer Deposit.
• Initial test results showed recoveries of up to 75 % for gallium and 56 %–100 % for various REEs.
• Phase‑two benchwork is underway, with results expected in Q3 2026; positive outcomes could lead to bulk leach validation and potential scale‑up.

Key Details

• Test Program Partner: Dr. Vasu Appanna’s Biomine Research & Development laboratory (Laurentian University, Sudbury, ON).
• Target Materials: Small batch of Springer “master mineral composites” representing historic intersected mineralization.
• Initial Recovery Results:
• Gallium – up to 75 % recovery.
• REEs – recoveries ranging from 56 % to 100 %, including neodymium, samarium, gadolinium, dysprosium, and ytterbium.
• Technology Approach: Combination of specialized microbial consortia, environmentally‑friendly chemical media, and affinity columns for selective metal extraction.
• Next Phase (Phase‑Two Benchwork): Optimizing chemical and microbial conditions to maximize gallium/REE liberation; results anticipated Q3 2026.
• Future Plans: If phase‑two results are positive, the program will progress to bulk leach validation studies aimed at scaling the process for commercial application.
• Historical Resource Context: 2012 Springer resource (4.2 Mt Indicated @ 1.14 % TREO; 12.7 Mt Inferred @ 1.17 % TREO) is historic and not yet verified; an updated mineral resource estimate is expected this quarter based on 2025 drilling.
• Qualified Persons: Dr. Vasu Appanna (independent QP for testwork); Dr. Julie Selway, P.Geo. (QP for historical deposit information).

Notable Quotes

• “This sustainable extraction approach is expected to further unlock Springer's potential by supporting the efficient, domestic supply of highly critical and strategic elements.” – Kerem Usenmez, President & CEO, Volta Metals Ltd.