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 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.
