VANCOUVER, British Columbia, Nov. 13, 2025 (GLOBE NEWSWIRE) -- EnviroGold Global Limited (CSE: NVRO | OTCQB: ESGLF | FSE: YGK) (“EnviroGold” or the “Company”), a clean-technology company enabling the recovery of critical and precious metals from mine waste and tailings, is pleased to announce that it has achieved exceptional results from the Phase 3 test work of the Company’s Rapid Deployment Pathway for its Major Tailings Reprocessing Projects.
NVRO Process™ Metallurgical Recoveries Independently Validated
Following successful pre-concentration and processing of the customer tailings using the Company’s proprietary NVRO Process™, the residual product was independently tested at ALS Laboratories in Perth, Australia, achieving the following results:
- 99.55% gold and 98.96% silver recovered to a saleable concentrate, exceeding previous benchmark outcomes.
- Gold in concentrate increased 380% from 5.5g/t to 20.9g/t.
- Silver in concentrate increased 602% from 92g/t to 554g/t.
- Base and critical metals reporting to pregnant leach solution (PLS) increased by 8%.
- Strong correlation between laboratory results and Andritz IDEAS simulation modelling, confirming the reliability and scalability of the NVRO Process™.
These results reinforce that the project tailings represent a high-value, technically robust candidate for a commercial scale NVRO Process™ implementation, with strong potential for multiple revenues streams from precious metals concentrates and recovery of base and critical metals from the PLS. We have achieved similar performance outcomes from other customers Phase 3 test work.
Environmental and Sustainability Benefits
Environmental and Sustainability Benefits - Continued
The Company’s tailings reprocessing plan for this customer is designed to deliver:
- an 86% reduction in acid mine draining potential by reducing pyrite content.
- 1.2 million tonnes of saleable precious metal concentrates.
- additional revenue from base and critical metals recovered from the PLS.
- a 14% reduction in on-site tailings volumes.
Large-Scale Economic and Strategic Opportunity
This project’s existing tailings facilities are estimated to contain more than 9 million tonnes of tailings material with gross in-situ metal values exceeding US $3 billion1, primarily comprising of gold and silver.
Path Forward
The next phase of the project’s development is Phase 4 of the Rapid Deployment Pathway. This Phase will validate mass balance, recovery performance, project economics and environmental outcomes at scale.
Management Commentary
EnviroGold’s Grant Freeman commented: “These Phase 3 results confirm the exceptional technical and economic potential of the NVRO Process™ to realise metal value from tailings while delivering exceptional environmental benefits.”
“I am proud of the work that our team and partners have achieved in 2025 delivering a combination of near total precious metal recovery, validation of our predictive process model and the environmental benefits of pyrite and tailings volume reduction, added EnviroGold COO Royston Denysschen. These results highlight EnviroGold’s value proposition as a scalable, environmentally responsible solution for the global mining industry.”
About EnviroGold Global
EnviroGold Global Limited is a clean-technology company transforming the mining industry by recovering high-value metals from mine waste and tailings while reducing environmental liabilities. The Company’s proprietary NVRO Process™ delivers efficient, low-carbon extraction of precious, base, and critical metals, aligning with the global demand for sustainable metal supply and responsible resource management. Operating under a capital-light technology-licensing model, EnviroGold combines innovation, scalability, and ESG performance to deliver recurring revenue and long-term shareholder value.
