RZOLV Reports Preliminary Bench-Scale Silver Recovery Results on Solar Panel Concentrate, Highlighting Opportunity for High-Value PV Recycling

Executive Summary

• RZOLV Technologies reported preliminary bench‑scale hydrometallurgical tests on a fine solar‑panel concentrate, achieving ~89.8% final silver recovery.
• Higher reagent dosage dramatically accelerated extraction kinetics (≈55 % recovery in 15 min vs. 20 % at standard dosage).
• Results support moving to structured follow‑on work to define operating windows, consumption behavior, and downstream recovery/solution recycle performance.

Key Details

• Test Material: Fine concentrate from crushed photovoltaic panels; average grade ≈ 977 g/t Ag.
• Analytical Verification: Head, residue, and leach solutions assayed by ALS Laboratories (including fire assay for silver).
• Recovery Performance: Both standard and 2× dosage tests reached a final calculated recovery of 89.8% Ag.
• Kinetic Comparison:
• Standard dosage – 15 min: 20.4 %; 45 min: 45.0 %; 1 h: 55.6 %; 4 h: 81.3 %.
• 2× dosage – 15 min: 55.5 %; 45 min: 79.4 %; 1 h: 82.2 %; 4 h: 82.8 %.
• Residue Silver Content: Final residue ~110–111 ppm Ag for both dosage levels.
• Test Conditions: Ambient laboratory temperature (~22 °C) under mechanically agitated leach conditions.
• Next Steps: Structured follow‑on testing to (i) define operating parameters, (ii) quantify reagent consumption, (iii) evaluate downstream recovery and solution recycle performance, and (iv) assess scale‑up potential.

Notable Quotes

“These early results are encouraging because they show high silver recovery alongside materially improved kinetics under practical agitated conditions,” – Duane Nelson, President & CEO, RZOLV Technologies Inc.

Materiality Assessment: Non‑Material – Positive (the release provides a positive operational update but does not contain financial or earnings information that would be deemed material to investors).