EnviroGold Global Announces Outstanding Phase 3 Metallurgical Results from Major Tailings Reprocessing Projects
EnviroGold (OTCQB: ESGLF) reported Phase 3 metallurgical results for its NVRO Process™ on a major tailings reprocessing project dated Nov 13, 2025. Independent ALS Perth testing showed 99.55% gold and 98.96% silver recovery to saleable concentrate, with gold in concentrate rising from 5.5g/t to 20.9g/t (+380%) and silver from 92g/t to 554g/t (+602%). Base and critical metals reporting to PLS increased 8%. Project-level highlights include 1.2 million tonnes of saleable concentrates, an 86% reduction in acid mine drainage potential, a 14% reduction in tailings volume, and in-situ metal value estimated above US $3 billion. Phase 4 will validate mass balance, recoveries, economics and environmental outcomes at scale.
EnviroGold (OTCQB: ESGLF) ha riportato i risultati metallurgici della fase 3 per il suo NVRO Process™ su un importante progetto di riutilizzo dei fanghi di scarto minerario datati 13 novembre 2025. I test indipendenti di ALS Perth hanno mostrato recuperi dell’oro del 99,55% e argento del 98,96% nel concentrato vendibile, con l’oro nel concentrato che è passato da 5,5 g/t a 20,9 g/t (+380%) e l’argento da 92 g/t a 554 g/t (+602%). La segnalazione di metalli di base e critici a PLS è aumentata dell’8%. I punti salienti a livello di progetto includono 1,2 milioni di tonnellate di concentrati vendibili, una riduzione dell’86% del potenziale di drenaggio acido da miniera, una riduzione del 14% del volume di fanghi da scarto e un valore dei metalli in situ stimato oltre US $3 miliardi. Il Phase 4 convaliderà su scala il bilancio di massa, i recuperi, l’economia e gli esiti ambientali.
EnviroGold (OTCQB: ESGLF) informó resultados metalúrgicos de la fase 3 para su NVRO Process™ en un importante proyecto de reprocesamiento de relaves con fecha 13 de noviembre de 2025. Las pruebas independientes de ALS Perth mostraron una recuperación de 99,55% de oro y 98,96% de plata al concentrado vendible, con el oro en el concentrado aumentando de 5,5 g/t a 20,9 g/t (+380%) y la plata de 92 g/t a 554 g/t (+602%). El informe de metales base y críticos a PLS aumentó 8%. Los aspectos destacados a nivel de proyecto incluyen 1,2 millones de toneladas de concentrados vendibles, una reducción del 86% del potencial de drenaje ácido minero, una reducción del 14% del volumen de relaves y un valor en sitio estimado de metales por encima de US $3 mil millones. El Phase 4 validará a escala el balance de masa, recuperaciones, economía y resultados ambientales.
EnviroGold (OTCQB: ESGLF) 은 NVRO Process™ 의 3상 금속시험 결과를 2025년 11월 13일에 공표했습니다. 독립적인 ALS 퍼스 테스트에서 회수율은 금 99.55%, 은 98.96%로 판매가능 농축물로의 회수되었으며, 농축물 내 금은 5.5 g/t에서 20.9 g/t로 상승해 (+380%), 은은 92 g/t에서 554 g/t로 상승해 (+602%)했습니다. PLS에 보고된 기본 및 주요 금속은 8%1.2백만 톤의 판매가능한 농축물, 산성 광산배출 가능성의 86% 감소, 잔류 슬러지의 체적 14% 감소, 현장 금속가치가 미화 30억 달러 이상으로 추정됩니다. Phase 4는 대규모로 질량밸런스, 회수, 경제성 및 환경적 결과를 검증합니다.
EnviroGold (OTCQB: ESGLF) a communiqué les résultats métallurgiques de la phase 3 pour son NVRO Process™ sur un important projet de rétraitement des stériles, datés du 13 novembre 2025. Des essais indépendants d’ALS Perth ont montré une récupération de l’or à 99,55% et de l’argent à 98,96% dans le concentré valorisable, avec l’or dans le concentré passant de 5,5 g/t à 20,9 g/t (+380%) et l’argent de 92 g/t à 554 g/t (+602%). Le reporting des métaux de base et critiques à PLS a augmenté de 8%. Les points forts au niveau du projet comprennent 1,2 million de tonnes de concentrés vendables, une réduction de 86% du potentiel de drainage minier acide, une réduction de 14% du volume de résidus, et une valeur en place des métaux estimée au-delà de US $3 milliards. Le Phase 4 validera à l’échelle le bilan de masse, les récupérations, l’économie et les résultats environnementaux.
EnviroGold (OTCQB: ESGLF) berichtete Phase-3-metallurgische Ergebnisse für seinen NVRO Process™ auf einem großen Nachlasstopp-Recyclingprojekt mit dem Datum 13. November 2025. Unabhängige ALS Perth-Tests zeigten eine Gold-Rückgewinnung von 99,55% und eine Silber-Rückgewinnung von 98,96% im verkaufsfähigen Konzentrat, wobei Gold im Konzentrats mit 5,5 g/t auf 20,9 g/t anstieg (+380%) und Silber von 92 g/t auf 554 g/t (+602%). Die Berichterstattung zu Basismetallen und kritischen Metallen an PLS stieg um 8%. Projekthighlights umfassen 1,2 Millionen Tonnen verkaufsfähige Konzentrate, eine 86%-ige Reduktion des potenziellen sauren Abbaus durch Bergbau, eine 14%-ige Reduktion des Tailings-Volumens und einen intrinischen Metallwert von über US $3 Milliarden geschätzt. Phase 4 validiert die Massenbilanz, Rückgewinnungen, Wirtschaftlichkeit und Umweltresultate in großem Maßstab.
EnviroGold (OTCQB: ESGLF) أبلغت عن نتائج مورفولوجية للمرحلة 3 لعملية NVRO Process™ في مشروع إعادة معالجة مخلفات هام على 13 نوفمبر 2025. أظهرت اختبارات ALS Perth المستقلة استرداد 99.55% من الذهب و 98.96% من الفضة إلى التركيز القابل للبيع، مع ارتفاع نسبة الذهب في التركيز من 5.5 ج/طن إلى 20.9 ج/طن (+380%) والفضة من 92 ج/طن إلى 554 ج/طن (+602%). زادت تقارير المعادن الأساسية والحرجة إلى PLS بمقدار 8%. وتشمل أبرز نقاط المشروع 1.2 مليون طن من التركيزات القابلة للبيع، انخفاضاً بنسبة 86% في احتمال تلوث المياه الحمضية المرتبط بالتعدين، انخفاضاً بنسبة 14% في حجم المخلفات، وقيمة معدنية في الموقع فوق US $3 مليار. ستؤكد المرحلة 4 ميزان الكتلة، والاستردادات، والاقتصاديات والنتائج البيئية على نطاق واسع.
- 99.55% gold recovery to saleable concentrate
- 20.9g/t gold in concentrate (up 380%)
- 1.2 million tonnes of saleable precious metal concentrates estimated
- Commercial-scale performance and economics not yet validated; Phase 4 pending
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 and98.96% 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
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.
Investors can access the Q3 Investor Presentation on the Company's website at: https://envirogoldglobal.com/investors/, along with the Terra Studio Company Profile at: https://www.terrastudio.biz/blog/post/11325/on-the-cusp-of-formidable-growth/
CONTACTS:
Investor Cubed
Neil Simon, CEO
+1 647 258 3310
nsimon@investor3.ca
ir@envirogoldglobal.com
Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this news release.
Forward-Looking Statements
This news release contains “forward-looking statements” and “forward-looking information” within the meaning of applicable Canadian securities laws (collectively, “forward-looking statements”). Forward-looking statements are often, but not always, identified by words such as “expects,” “anticipates,” “believes,” “intends,” “estimates,” “potential,” “plans,” “projects,” “targets,” “may,” “will,” “should,” “could,” or similar expressions. These statements reflect the Company’s current expectations and assumptions, which are believed to be reasonable as of the date hereof, and are based on information currently available to the Company.
Forward-looking statements in this news release include, without limitation, statements regarding: the Company’s ability to advance, scale, and commercialize the NVRO Process™; the expected benefits of the NVRO Process™, including efficiency, recovery performance, cost reduction, and environmental outcomes; the planned operation, objectives, and results of the Phase 4 Demonstration Plant campaign; the potential for future project development, partnerships, or licensing agreements; and the anticipated contribution of these results to the Company’s broader commercialization strategy.
Forward-looking statements are inherently subject to known and unknown risks, uncertainties, and other factors that may cause actual results, performance, or achievements to differ materially from those expressed or implied by such statements. These factors include, but are not limited to: risks related to technology development, scale-up, and integration; pilot and demonstration plant performance; variability in feedstock quality and availability; engineering, construction, and commissioning risks; regulatory, permitting, and environmental approval processes; market conditions affecting commodity prices and demand for recovered metals; reliance on strategic partners and key personnel; protection and enforcement of intellectual property; access to capital and liquidity; and general economic, market, and geopolitical conditions. Additional risks are described in the Company’s public disclosure documents available under its profile on SEDAR+ at www.sedarplus.ca.
Readers are cautioned not to place undue reliance on forward-looking statements. Except as required by applicable securities laws, the Company undertakes no obligation to update or revise any forward-looking statement, whether as a result of new information, future events, or otherwise.
1 These figures are based on current spot prices and do not represent recoverable value, mineral resources, or mineral reserves as defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects. Further test work and engineering studies are required to assess economic viability.
A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/85a8a7a6-728a-46c2-a15a-75c6779b090c.
FAQ
What did EnviroGold (ESGLF) report on Nov 13, 2025 about Phase 3 recoveries?
How much did gold and silver grades increase in EnviroGold's Phase 3 concentrates?
What environmental benefits did EnviroGold claim for the NVRO Process on Nov 13, 2025?
How large is the tailings opportunity EnviroGold referenced for the project?
What is the next technical step for EnviroGold's NVRO Process after Phase 3 results?
Did an independent lab verify EnviroGold's Phase 3 metallurgical results for ESGLF?
