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Production / Operations Neutral

RZOLV Reports Preliminary Positive Laboratory Results for Sequential Copper and Gold Extraction from Selected Low-Grade Copper-Gold Samples

Pre-revenue hydrometallurgy developer advancing non-cyanide gold extraction with pilot validation and recurring capital raises.

By The Northwire Desk — AI Analysis Jun 29, 2026 · 08:01 RZL · 0.315 RZOLV Technologies Inc.
Executive Summary
  • RZOLV Technologies announced preliminary laboratory results for sequential copper and gold extraction from low-grade copper-gold samples using its proprietary RZOLV platform.
  • Direct leaching achieved calculated-head gold recoveries of 82.3% to 94.8% and copper extraction of 71% to 80% via pre-treatment.
  • Sequential pre-treatment allowed copper to be extracted into separate liquors while gold remained in the solid residue, with no gold detected in the pre-treatment liquors.
  • Reagent additions were 27% to 64% lower in pre-treated tests compared to direct-leach tests.
  • Testing was conducted at laboratory scale using bottle-roll tests on two composite samples under unoptimized conditions.
  • Each condition was generally tested once with no confirmed duplicates.
  • Future work will focus on repeatability, process optimization, scale-up evaluation, and recovery of both metals into saleable products.
Material Impact
  • The release provides incremental technical validation of a sequential processing pathway but does not alter the company's commercial timeline or financial profile.
  • Results remain at the bench-scale, unoptimized, and single-run stage, meaning they do not yet demonstrate commercial viability or predictable scale-up.
  • No revenue, margin, or cash flow impact is realized from this update.
  • The announcement does not change the company's immediate capital requirements or going concern status.
RZL · Price
Company Overview
  • RZOLV Technologies is a pre-revenue clean technology company developing a proprietary, water-based, non-cyanide hydrometallurgical platform for the recovery of precious and critical metals.
  • The RZOLV platform targets gold, copper, silver, and rare earth elements from primary ores, tailings, metallurgical residues, and secondary feedstocks like e-waste and photovoltaic panels.
  • The company has listed on the TSX Venture Exchange (RZL), OTCQB Venture Market (RZOLF), and Frankfurt Stock Exchange (S711).
  • Strategic partnerships include a collaboration with EMEW Clean Technologies for integrated downstream electrowinning and a pilot demonstration agreement with Environmental Research and Development (ERD) in Arizona.
  • The business model relies on licensing, technology services, and joint ventures rather than direct mining or smelting operations.
Read the original news release →

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