EnviroGold Global Announces Filing of New Patent Application Completing Intellectual Property Protection for its NVRO Clean Leach Process

TORONTO, May 08, 2024 (GLOBE NEWSWIRE) -- EnviroGold Global Limited (CSE: NVRO | OTCQB: ESGLF | FSE: YGK) (“EnviroGold,” or the “Company”), a technology company enabling the global mining industry to monetize valuable metals contained in mine waste and tailings, reduce environmental liabilities and improve social and environmental outcomes, is pleased to announce it has filed a new patent application (Australian Provisional Patent Application number AU2024901328) for an improved method of extraction of metals from refractory ores. This patent application, combined with the previously filed Application PCT AU2023/051121 for an improved process for recovery of refractory ores, completes the suite of intellectual property protection the Company requires for its NVRO Clean Leach Process.

The Company’s Chief Technology Officer, Mr. Brock Hill said, “This patent application follows an extended pilot study conducted at ALS Global’s Perth, Western Australia Metallurgical Facility in July 2023. The pilot study was designed to confirm process recoveries and identify any process challenges which could prevent the Company from moving to full scale commercial production. The results of this work have enabled the Company to significantly improve several components of the NVRO Clean Leach Process including improved catalyst recovery, lower operational cost, and increased recovery of gold & silver from refractory ores.”

CEO David Cam commented that “The patent filing builds on the previous patent application and together completes the intellectual property protection for the Company’s NVRO Clean Leach Process and gives our Company a first mover advantage in this exciting and growing market. The improvements also broaden the Company’s ability to reprocess other mine tailings and concentrates, enabling the Company to pursue reprocessing opportunities across a broader range of metals, including strategic metals and rare earth elements.”

The Company has 7 active projects representing a total of over 300 million tonnes of tailings, 5 of these projects are associated with major global mining companies.

Mr. Cam also confirmed earlier market guidance, that the Company has committed to build a centralized demonstration plant in Brisbane, Australia that will allow customers, including several of the world’s largest mining and mineral processing companies, to test the NVRO Clean Leach Process on tailings and smelter by-products. The modular plant will incorporate the component features protected by the current patent applications.