EnviroGold Advances Metal Recovery Pilot with Greens Creek Feedstock
Event summary
- EnviroGold received tailings from Hecla Mining’s Greens Creek mine in Fremantle, Western Australia, on April 21, 2026.
- The feedstock will be used in Phase 3 (50 kg/day) and Phase 4 (300 tonnes/year) pilot and demonstration campaigns of EnviroGold’s NVRO Process.
- Phase 1 and Phase 2 test work were completed on March 2, 2026, paving the way for these scaled-up campaigns.
- The program aims to achieve Technology Readiness Level (TRL) 8, signifying commercial validation of both process and product streams.
The big picture
EnviroGold's NVRO Process targets a growing market for sustainable metal recovery from mine waste, driven by increasing ESG pressures and the need for secure critical mineral supply chains. The company’s progress toward TRL 8 represents a significant step in validating this technology, but the pilot program’s success is crucial for attracting further investment and securing larger-scale deployments. The reliance on tailings from existing mining operations introduces a degree of operational and logistical complexity that will need to be managed effectively.
What we're watching
- Execution Risk
- The success of the pilot and demonstration campaigns hinges on achieving the stated processing capacities and timelines, which are subject to third-party lab turnaround times and potential operational challenges.
- Product Viability
- Whether the material produced can be assessed for quality and saleability at the projected rates will be a key indicator of the NVRO Process’s commercial potential.
- Feedstock Dependency
- EnviroGold’s progress is directly tied to the availability and characteristics of mine tailings, highlighting a potential dependency on Hecla and other mining partners.
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