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Regulus Reports Attractive Copper Extraction Rates Using Nuton Bio-Leaching and Provides Update on Integrated Sulphide Project Resource Estimate
Globenewswire· 2025-05-20 11:00
Core Viewpoint - Regulus Resources Inc. is advancing its Phase Two metallurgical test program with Nuton LLC, focusing on bio-leaching technologies for the AntaKori copper-gold project, while also progressing on an integrated resource estimate with Compañía Minera Coimolache S.A. for the Integrated Sulphide Project [1][4]. Nuton Phase Two Program - The Phase One program confirmed that AntaKori material is suitable for Nuton's proprietary sulphide bio-leaching technology [2]. - The Phase Two program is evaluating various conditions for optimal leaching of enargite-rich high-sulphidation mineralization, with the highest copper extraction achieved so far being 88.3% [3]. - Additional columns have been initiated to further refine the optimal conditions for leaching [3]. Integrated Sulphide Project - Regulus and Coimolache are collaboratively developing an integrated geological model for the Integrated Sulphide Project, which is a prerequisite for the resource estimate [4]. - SRK Peru has been contracted to complete the resource estimate, expected to be finalized by mid-year [4]. Company Insights - The CEO of Regulus expressed optimism regarding the results from the Phase Two program, highlighting the potential of Nuton's bio-leaching technology for both high-sulphidation and porphyry mineralization [5]. - The AntaKori project currently hosts indicated mineral resources of 250 million tonnes at a grade of 0.48% Cu, 0.29 g/t Au, and 7.5 g/t Ag, and inferred mineral resources of 267 million tonnes at a grade of 0.41% Cu, 0.26 g/t Au, and 7.8 g/t Ag [7].