Green Manganese Completes Bench-Scale Trials at the University of British Columbia

Vancouver, Canada – May 2025. Green Manganese, a clean-tech venture developing a low-carbon, water-based process for manganese extraction, has successfully completed bench-scale metallurgical tests at the University of British Columbia.

The study, conducted in collaboration with UBC’s Hydrometallurgy Research Group, validated the company’s proprietary calcium-chloride leaching process on multiple carbonate and oxide feedstocks. The trials achieved over 85–95% manganese recovery while maintaining near-neutral pH conditions, confirming the potential for low-emission, acid-free extraction of manganese and associated metals.

These results demonstrate the scalability of Green Manganese’s process and its suitability for recovering manganese from low-grade ores, tailings, and smelter dust — resources typically discarded by conventional methods. The process produced high-purity Mn₃O₄ and minimized waste, with no generation of acidic tailings and significant opportunities for reagent recycling.

“This milestone confirms that our water-based extraction technology can deliver high recovery and purity without the environmental footprint of traditional smelting or acid leaching,” said Alexey Demyakin, CEO of Green Manganese. “It’s a major step toward building our 1,500-tonne demonstration plant in Vancouver.”

The completion of these bench-scale trials marks Technology Readiness Level 5–6, paving the way for the next phase — construction of a demonstration plant aimed at validating commercial-scale performance and producing offtake-ready product samples for steel and battery customers across North America and Europe.