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Hebei Ladery Import & Export Co., Ltd. [Hebei,China] Business Type:Manufacturer , Trade Company Main Markets: Africa , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide Exporter:61% - 70% Certs:ISO9001, CE

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Declared resources of Isca polymetallic mine, Bolivia

2023-09-22

According to Mining.com, Eloro Resources (Eloro Resources) has announced the preliminary resource estimate of its Iska Iska (Iska Iska, hereinafter referred to as Iska) silver tin polymetallic project in southwest Bolivia.

In view of the polymetallic characteristics of the Iska deposit, the resource quantity will be delineated by the boundary value of Net Smelter Return (NSR).

Based on the NSR value of US $20.32 / t, and the boundary value of US $9.2 / t, the project's presumed open pit mineral resources are 541 million tonnes with a grade of 0.69% zinc, 0.28% lead and 13.6 g silver. Among them, according to the NSR value of 34.50 US dollars/ton, the boundary value of 25 US dollars/ton, the near-surface ore resources are estimated to be 132 million tons, zinc grade 1.11%, lead 0.50%, silver 24.3g/ton.

The total ore resources are 670 million tons, 298 million ounces of silver metal, 4.09 million tons of zinc, 1.74 million tons of lead, and 130,000 tons of tin, that is, 1.15 billion ounces of silver equivalent.

"While we classify the resource as speculative, most of it can be upgraded to constructive after further drilling," said Tom Larson, the company's chief executive officer.

In addition, the NSR boundary value of lead, zinc and silver ore mined in open pit is $9.2 / ton and that of underground mining is $34 / ton. The NSR boundary value for open pit mining of lead, zinc and tin ores is $6 / ton.

The estimated ore resource of underground mining is 19 million tons, the grade of zinc is 1.88%, the lead is 0.36%, the silver is 18.8 g/ton, the NSR value is 42.23 US dollars/ton, and the boundary value is 34.40 US dollars/ton.

The total estimated ore resources are 670 million tons with an NSR value of US $19.62 / t, of which 97% can be mined in open pit. The Santa Barbara open pit can reach a diameter of 1.4 kilometers, a maximum depth of 750 meters, and a stripping ratio of 1:1.

The above resources are based on the drilling results of 139 diamond holes totaling 96,386 meters, all of which have seen significant mineralization and the ore bodies have not penetrated in any direction.

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