17:51:04 EST Mon 02 Mar 2026
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or Name
USA
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Envirogold Global Ltd
Symbol NVRO
Shares Issued 482,990,991
Close 2026-02-27 C$ 0.17
Market Cap C$ 82,108,468
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Envirogold talks phase 2 Greens Creek tailings testing

2026-03-02 14:44 ET - News Release

Mr. Grant Freeman reports

ENVIROGOLD GLOBAL ANNOUNCES POSITIVE RESULTS FROM HECLA MINING COMPANY'S GREENS CREEK TAILINGS

Envirogold Global Ltd. has successfully completed phase 2 of its structured test work program on tailings from Hecla Mining Company's Greens Creek mine in Alaska. The company previously described this party as a North American Tier 1 customer due to confidentiality considerations; it is now able to identify Hecla as the counterparty for this project.

Completion of phases 1 and 2 of Envirogold's rapid deployment pathway confirms the technical suitability of the Greens Creek tailings for the NVRO process, demonstrating near-complete oxidation of sulphide minerals and strong liberation of contained metals, achieving high recovery rates, including 98.07 per cent silver and 99.46 per cent gold.

A bulk sample of feedstock from Greens Creek is in the process of being shipped to Envirogold's West Australian project development facility, where phase 3 pilot plant optimization and phase 4 demonstration-scale processing are to be completed.

These phases are designed to optimize the process operating conditions, validate saleable product quality and value, evaluate waste stream characteristics and operating parameters at industrial scale, and generate engineering data for techno-economic modelling to support continued commercial evaluation of the tailings processing opportunity.

Subject to further study, approvals and commercial arrangements, the project has the potential to recover silver, gold, base metals and critical minerals from sulphidic tailings using the NVRO process while reducing long-term environmental liabilities associated with legacy mine waste. "The test work results clearly demonstrate the NVRO process has the potential to unlock significant metal production from mineralization contained in Greens Creek's tailings facility, material that was not recovered in prior milling activities over the facility's 35-year operational history," said Grant Freeman, chief executive officer. "We are grateful to Hecla for the opportunity to assess their tailings and the potential commercial opportunity."

About Envirogold Global Ltd.

Envirogold Global is a clean-technology company that enables the recovery of high-value precious, base and critical metals from mine waste and tailings using its proprietary NVRO process. By unlocking metals from existing, above-ground assets, Envirogold delivers scalable, lower-impact metal recovery solutions that complement traditional mining operations and align with global ESG (environmental, social and governance) frameworks and critical minerals strategies.

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