Due to the multi-metal nature of the deposit, the resources are reported using Net Smelter Return (NSR) cut-off values which are as follows: Polymetallic Domain (Zn-Pb-Ag) = US$9.20/t for open pit (OP) mining and US$34.00/t for underground (UG) mining; Tin Domain (Sn-Ag-Pb) = US$6.00/t for OP mining. Costs have been significantly reduced due to the major impact of the positive “ore-sorting” tests.
Potentially open pittable inferred mineral resource in Polymetallic Domain (Zn-Pb-Ag) of 541 million tonnes grading 0.69% Zn, 0.28% Pb and 13.6 g Ag/t with an NSR value of US$20.32/t at an NSR cut-off of US$9.20/t which is equal to the estimated operating cost.
Polymetallic Domain includes a core inferred mineral resource at an NSR cutoff of US$15/t of 342 million tonnes grading 0.85% Zn, 0.35% Pb and 17 g Ag/t with an NSR value of US$25.22/t which is 2.74 times estimated operating cost of US $9.20/t
This core mineral resource includes a higher grade near surface inferred mineral resource at an NSR cut-off of US25/t of 132 million tonnes grading 1.11% Zn, 0.50% Pb and 24.3 g Ag/t with an NSR value of US$34.50/t which is 3.75 times estimated operating cost of US $9.20/t
Potentially open pittable inferred mineral resource in the Tin Domain (Sn-Pb-Ag) of 110 million tonnes grading 0.12% Sn, 0.14% Pb and 14.2 g Ag/t with an NSR value of US$12.22/t at an NSR cut-off of US$6.00/t
Potential underground inferred mineral resource in the Polymetallic Domain of 19 million tonnes grading 1.88% Zn, 0.36% Pb and 18.8 g Ag/t with an NSR value of US$42.23 at an NSR cut-off of US$34.40/t.

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https://www.globenewswire.com/news-release/2023/10/17/2761148/0/en/Eloro-Resources-Files-NI-43-101-Technical-Report-for-Initial-Mineral-Resource-Estimate-for-Iska-Iska-Project-Potosi-Department-Southwestern-Bolivia.html