EnviroGold Global Announces Positive Results from Hecla Mining Company’s Greens Creek Tailings
EnviroGold Global Announces Positive Results from
Hecla Mining Company’s Greens Creek Tailings
VANCOUVER, Canada, March 2, 2026 – EnviroGold Global Limited (TSX-V: NVRO |
OTCQB: ESGLF | FSE: YGK) (“EnviroGold” or the “Company”), a clean technology
company focused on the recovery of precious and critical metals from mine waste and
tailings, announces the successful completion of Phase 2 of its structured test work program
on tailings from Hecla Mining Company (“Hecla”)’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 sulfide minerals and strong liberation of contained metals,
achieving high recovery rates, including 98.07% silver and 99.46% gold.
A bulk sample of feedstock from Greens Creek is in process of being shipped to EnviroGold’s
West Australian project development facility, where Phase 3 pilot plant optimization and
Phase 4 demonstration-scale processing is 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 sulfidic tailings using the
NVRO Process™ while reducing long-term environmental liabilities associated with legacy
mine waste. “The test work results clearly demonstrate the NVRO Processكhas 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
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 frameworks and critical-minerals strategies.
Additional information, including the Company’s investor presentation and corporate profile,
is available at www.envirogoldglobal.com.
CONTACTS:
Investor Cubed
Neil Simon, CEO
+1 647 258 3310
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is
defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy
or accuracy of this release.
Forward-Looking Statements
This news release contains “forward-looking statements” within the meaning of applicable
securities laws. Forward-looking statements are generally identified by words such as
“expect,” “plan,” “anticipate,” “intend,” “estimate,” “believe,” “may,” “will,” “should,”
“could,” “potential,” and similar expressions. Forward-looking statements in this news release
include, but are not limited to, statements regarding: the completion and timing of Phase 3
pilot plant optimization and Phase 4 demonstration-scale processing; the objectives and
expected outcomes of Phases 3 and 4, including optimization of operating conditions,
validation of saleable product quality and value, assessment of waste-stream characteristics
and operating parameters at industrial scale, and generation of engineering data for techno-
economic modelling; the technical suitability of the Greens Creek tailings for processing
using the NVRO Process™ and the ability to achieve recoveries or other performance results
at larger scale consistent with test work results; the potential to recover silver, gold, base
metals and critical minerals from sulfidic tailings using the NVRO Process™; the potential
environmental benefits of tailings and mine-waste reprocessing, including reduction of long-
term environmental liabilities; the Company’s ability to progress commercial evaluation and,
if successful, enter into commercial arrangements in respect of the Greens Creek tailings
opportunity; and any statements regarding the estimated gross metal value of the Greens
Creek tailings and related assumptions.
Forward-looking statements are based on management’s current expectations, assumptions
and beliefs as of the date hereof, including, without limitation: that the bulk sample is
representative of the Greens Creek tailings relevant to the opportunity being evaluated; that
metallurgical test work results are indicative of performance at pilot, demonstration and
commercial scale; that further test work, engineering studies and techno-economic modelling
will support continued evaluation; that required equipment, reagents, utilities, personnel, and
third-party services will be available on acceptable terms and within anticipated timelines;
that required permits, regulatory approvals and stakeholder support (including from
counterparties and relevant authorities) will be obtained on a timely basis; that the Company
will be able to negotiate and enter into commercial arrangements on acceptable terms; and that
commodity prices, foreign exchange rates, inflation, logistics and supply-chain conditions will
remain sufficiently supportive of continued evaluation.
Actual results may differ materially from those expressed or implied by forward-looking
statements due to risks and uncertainties, including, without limitation: variability in tailings
characteristics and metallurgical response; differences between laboratory, pilot,
demonstration and commercial-scale performance; technical or operational challenges,
including equipment performance, recoveries, impurities, product specifications, and waste-
stream management; delays or failure in completing Phases 3 and/or 4 on anticipated
timelines or achieving intended outcomes; errors or changes in assumptions used in techno-
economic modelling or any gross metal value estimate; changes in commodity prices, foreign
exchange rates, interest rates, inflation or market conditions; availability of financing;
permitting, regulatory or approval delays; inability to secure commercial agreements or
strategic partnerships on acceptable terms or timelines; health, safety and environmental risks;
changes in laws, regulations or government policy; and other risks and uncertainties beyond
the Company’s control. This list is not exhaustive.
Forward-looking statements are not guarantees of future performance and involve risks,
uncertainties and assumptions that are difficult to predict. Readers are cautioned not to place
undue reliance on forward-looking statements. Except as required by applicable securities
laws, the Company disclaims any obligation to update or revise any forward-looking
statements to reflect new information, future events or otherwise.