ESGold Reports Positive Results from Colombian Tailings
ESGold (OTCQB: ESAUF) reported initial bench-scale Deister table tests on bulk tailings from Colombia’s Bolívar region on Oct 14, 2025. Representative feed averaged ~4.88–5.05 g/t Au and ~30–35.7 g/t Ag. One test achieved ~52% gold recovery with clean separation; gravity concentrates averaged ~59 g/t Au and ~193 g/t Ag with ~2.8% mass pull. Tests used no added chemical reagents and matched ESGold’s low‑reagent gravity flowsheet. Results are preliminary and bench‑scale; the company plans optimization, confirmatory sampling and pilot‑scale testing to refine recoveries and concentrate specs prior to any commercialization.
ESGold (OTCQB: ESAUF) ha riportato test iniziali su scala di banco con tavolo Deister su scarti bulk dalla regione Bolívar in Colombia il 14 ottobre 2025. Il campione rappresentativo di alimentazione mediamente ~4,88–5,05 g/t Au e ~30–35,7 g/t Ag. Un test ha ottenuto ~52% di recupero dell'oro con una separazione pulita; i concentrati gravitari hanno mediamente ~59 g/t Au e ~193 g/t Ag con ~2,8% di massa estratta. I test non hanno utilizzato reagenti chimici aggiunti e hanno seguito il flusso a bassa reattività di gravità di ESGold. I risultati sono preliminari e su scala di banco; l'azienda prevede ottimizzazione, campionamento di conferma e test su scala pilota per perfezionare i recuperi e le specifiche dei concentrati prima di qualsiasi commercializzazione.
ESGold (OTCQB: ESAUF) informó pruebas iniciales a escala de banco con una mesa Deister sobre relaves masivos de la región Bolívar de Colombia el 14 de octubre de 2025. La alimentación representativa promedió ~4,88–5,05 g/t Au y ~30–35,7 g/t Ag. Una prueba logró ~52% de recuperación de oro con una separación limpia; los concentrados gravitatorios promediaron ~59 g/t Au y ~193 g/t Ag con ~2,8% de extracción de masa. Las pruebas no utilizaron reactivos químicos añadidos y coincidieron con el flujo gravitatorio de baja reactividad de ESGold. Los resultados son preliminares y a escala de banco; la compañía planea optimización, muestreo de confirmación y pruebas a escala piloto para refinar recuperaciones y las especificaciones de los concentrados antes de cualquier comercialización.
ESGold (OTCQB: ESAUF)는 콜롬비아 볼리바르 지역의 대량 잔류물에 대해 Deister 테이블 벤치 스케일 초기 테스트를 2025년 10월 14일에 보고했습니다. 대표 공급(feed) 평균은 대략 ~4.88–5.05 g/t 금 Au 및 ~30–35.7 g/t 은 Ag였습니다. 한 테스트에서 약 52%의 금 회수와 깨끗한 분리가 달성되었고, 중력 농축물은 대략 ~59 g/t Au 및 ~193 g/t Ag를 평균으로 보였으며 질량 추출은 ~2.8%였습니다. 테스트에는 첨가된 화학 시약이 없었고 ESGold의 저시약 중력 흐름도와 일치했습니다. 결과는 예비적이며 벤치 스케일입니다; 회사는 회수 및 농축물 규격을 개선하기 위한 최적화, 확인 샘플링 및 파일럿 규모 테스트를 계획하고 있으며 상용화 전에 수행할 예정입니다.
ESGold (OTCQB: ESAUF) a rapporté des tests initiaux à l’échelle bench sur une table Deister, sur des rejets en vrac de la région Bolívar en Colombie, le 14 octobre 2025. L’alimentation représentative a en moyenne ~4,88–5,05 g/t Au et ~30–35,7 g/t Ag. Un test a atteint ~52% de récupération de l’or avec une séparation nette ; les concentrats gravitaires ont en moyenne ~59 g/t Au et ~193 g/t Ag avec ~2,8% de traînée de masse. Les tests n’ont pas utilisé de réactifs chimiques ajoutés et correspondaient au flux gravitaire à faible réactif d’ESGold. Les résultats sont préliminaires et à l’échelle bench ; la société prévoit une optimisation, un échantillonnage de confirmation et des tests à l’échelle pilote pour affiner les récupérations et les spécifications des concentrés avant toute commercialisation.
ESGold (OTCQB: ESAUF) berichtete initiale Bench-Scale-Deister-Tischtests auf Bulk-Rückständen aus der Bolívar-Region in Kolumbien am 14. Oktober 2025. Die repräsentative Förderung durchschnittlich ~4,88–5,05 g/t Au und ~30–35,7 g/t Ag. Ein Test erreichte ~52% Goldausbeute mit sauberer Trennung; Gravity-Concentrates wiesen durchschnittlich ~59 g/t Au und ~193 g/t Ag auf mit ~2,8% Massenanteil. Tests verwendeten keine zusätzlichen chemischen Reagenzien und entsprachen ESGolds Low-Reagent-Gravity-Flowsheet. Die Ergebnisse sind vorläufig und bench-scale; das Unternehmen plant Optimierung, bestätigende Probenahme und Pilot-Scale-Tests, um die Ausbeuten und Konzentrat-Spezifikationen vor einer Vermarktung zu verfeinern.
ESGold (OTCQB: ESAUF) أبلغت عن اختبارات ابتدائية على نطاق طاولة Deister على مخلفات Bulk من منطقة بوليفار في كولومبيا في 14 أكتوبر 2025. التغذية الممثلة بلغت في المتوسط ~4.88–5.05 g/t ذهب و ~30–35.7 g/t فضة. حقق اختبار واحد ~52% من استرداد الذهب مع فصل نظيف؛ وكانت المواد المركّزة الجاذبية متوسطًا ~59 g/t ذهب و ~193 g/t فضة مع ~2.8% من سحب الكتلة. الاختبارات لم تستخدم أي مواد كيميائية مضافة وتوافقت مع مخطط التدفق الجاذبي منخفض التفاعل لـ ESGold. النتائج ابتدائية وعلى نطاق المختبر؛ تخطط الشركة للتحسين، وأخذ عينات تأكيد واختبارات على نطاق تجريبي لتحديد معدلات الاسترداد ومواصفات المواد المركزة قبل أي تسويق.
ESGold (OTCQB: ESAUF) 就来自哥伦比亚博列瓦尔地区的 Bulk 尾矿在 2025 年 10 月 14 日 对 Deister 桌面进行初步 bench 规模测试进行了报道。代表性进料平均约为 ~4.88–5.05 g/t 金 Au 和 ~30–35.7 g/t 银 Ag。一次测试实现了 ~52% 的金回收率并获得清洁分离；重力浓缩物平均约 ~59 g/t Au 和 ~193 g/t Ag，质量拉动约 ~2.8%。测试未使用任何添加化学试剂，符合 ESGold 的低试剂重力流程。结果为初步且在 bench 规模；公司计划进行优化、确认采样和试点规模测试，以在任何商业化前完善回收率和浓缩物规格。
- Feed grade ~5.05 g/t Au average
- Gravity concentrate ~59 g/t Au average
- No added reagents in bench tests (low‑emission flowsheet)
- Gold recovery variable; only one test reached ~52%
- Mass pull relatively high at ~2.8% (requires secondary upgrade)
- Results preliminary and sample representativeness not confirmed
Initial testing confirms favorable gold and silver recoveries from historical tailings using a simple, low reagent gravity circuit, validating ESGold’s clean, low-cost extraction model and supporting the Company’s future pilot and expansion plans
VANCOUVER, B.C., Oct. 14, 2025 (GLOBE NEWSWIRE) -- via IBN – ESGold Corp. (“ESGold” or the “Company”) (CSE: ESAU | OTCQB: ESAUF | FSE: Z7D) reports initial metallurgical results from the Deister table tests from bulk tailings samples collected in Colombia’s Bolívar region under the Company’s recently signed Planta Magdalena memorandum of understanding. Bench work, which was supervised by Edmond St-Jean, Ing., confirms materials tested are amenable to simple gravity separation using a circuit analogous to the flowsheet for ESGold’s Montauban project in Quebec.
Key Highlights
- Representative feed grades (bench scale): Mean analyzed ~4.88 g/t Au and ~35.7 g/t Ag (mean “calculated” balance ~5.05 g/t Au, ~30.2 g/t Ag), consistent with historical mercury-processed tailings.
- Recoveries (bench scale): Gold recovery varied by test with one test achieving ~
52% Au recovery with clean separation. Lower and variable recoveries in other tests were attributed to manual, irregular feeding during bench work. Optimization procedures implemented are expected to improve and stabilize recoveries.
- Concentrate grades (bench scale): Average gravity concentrate ~59 g/t Au and ~193 g/t Ag across tests (test-to-test variability noted).
- Mass pull: ~
2.8% of feed reported to gravity concentrate on average. A secondary upgrade step (e.g., Gemini table) is expected to further reduce concentrate mass for downstream treatment. - Simple circuit, low reagents: Tests used no additional chemical reagents and results were compatible with ESGold’s low-reagent, low-emission gravity flowsheet at its Montauban project.
“With our team now on the ground in Bolívar, these results provide clear validation of the strong potential economics that can be achieved through a simple, clean extraction process,” said Gordon Robb, CEO of ESGold. “We were encouraged as tests confirm the technical merits of the material and suggest that further optimization, including recovery of silver values, could further enhance the project. As we move forward with validation, our team is focused on advancing pilot work, improving process efficiency, and assessing the surrounding area for additional sources of higher-grade feed. Taken together, these steps represent the beginning of what appears to be a very promising chapter for ESGold in Colombia.”
Economic Significance (Illustrative Only)
Because this material from Colombia’s Bolívar region has been through the ore treatment process and is on surface, the development concept avoids drilling, blasting and haulage, which can shorten the path to potential cash flow - providing pilot results confirm stable recoveries and saleable concentrate/doré. Any per-tonne value illustrations from the report are bench-scale and preliminary and they are not production forecasts and are currently insufficient to demonstrate economic viability.
Next Steps
The Company will now focus on parameter optimization (i.e., grind size, table slope, and water flow), confirmatory sampling across the tailings area, and pilot-scale testing on site in Colombia. These steps will help refine recoveries, confirm concentrate specifications, and finalize the modular flowsheet design ahead of potential deployment.
Why This Matters to Investors
Early metallurgical results reported herein validate ESGold’s ability to identify and advance low-CapEx, high-margin opportunities that fit within its clean mining strategy. With Mountauban’s concurrent advancing towards 2026 production, the addition of the potential operation in Colombia strengthens ESGold’s long-term growth outlook. The combination of near-term production, scalable processing, and exploration upside positions ESGold to build one of the most innovative and sustainable emerging producers in the gold and silver sector.
Qualified Person
The technical content of this news release has been reviewed and approved by John Langton (P.Geo.) a Qualified Person under National Instrument 43-101 - Standards of Disclosure for Mineral Projects. The bench testing summarized in this press release was supervised by Edmond St-Jean, Ing., whose underlying report notes that samples were provided sealed by the Company’s project partner in Colombia and used as received. As such, representativeness cannot be confirmed at this stage. Data and results are preliminary but considered reliable for disclosure purposes.
About ESGold Corp.
ESGold Corp. (CSE: ESAU | OTCQB: ESAUF | FSE: Z7D) is a fully permitted, fully funded, pre-production mining company advancing a scalable clean mining model across North and South America. The Company’s flagship Montauban Gold-Silver Project in Quebec is under construction with production anticipated in 2026. ESGold is also advancing a joint venture in Colombia, validating one of South America’s most prolific gold regions for tailings reprocessing and systematic exploration. With a dual-track strategy of cash flow today and discovery tomorrow, ESGold is building a platform for clean, sustainable growth and long-term shareholder value.
For more information, please contact ESGold Corp. at +1-888-370-1059 or visit esgold.com for additional resources, including a French version of this press release, past news releases, a 3D model of the Montauban processing plant, media interviews, and opinion-editorial pieces.
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For further information or to connect directly, please reach out to Gordon Robb, CEO of ESGold Corp. at gordon@esgold.com or call 250-217-2321.
On behalf of the Board of Directors
ESGold Corp.
Paul Mastantuono
Chairman & COO
info@esgold.com
+1-888-370-1059
Cautionary Note Regarding Forward-Looking Information
This news release contains “forward-looking information” within the meaning of applicable Canadian securities laws, including statements regarding metallurgical recoveries, project economics and results, optimization strategies and next steps, and exploration potential. Forward-looking information is based on reasonable assumptions believed to be current but involves known and unknown risks and uncertainties that may cause actual results to differ materially. Historical data referenced herein is not current, has not been independently verified by ESGold, and should not be relied upon for investment decisions. ESGold disclaims any obligation to update or revise forward-looking information except as required by law.
Neither the Canadian Securities Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release.
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