Mining projects

Mining intelligence · Project

Promontorio-La Negra

Resource DefinitionSilverMexico
Total silver eq. resources
207.18 Moz
Measured & indicated · 162.76 MozInferred · 44.42 MozTotal Promontorio-La Negra Project mineral resource estimate; in situ tonnage, grades and metal content. Promontorio reported at 25 g/t AgEq cutoff and La Negra at 40 g/t AgEq cutoff.
Linked companies
1
Ownership and project roles

The asset

Project overview

Silver resource property in Mexico comprising the Promontorio and La Negra deposits, both covered by the 2023 project mineral resource estimate.

Mine type
Open pit
Region
North America
Mexico
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Companies behind the asset

Ownership & project roles

Mineral inventory

Resources and reserves

How this data is collected

Explore the reported mineral inventory, from headline totals to individual deposits. Resources and reserves remain separate; equivalent metal uses the company’s own assumptions.

Mineral resources as at Aug 27, 2023NI 43-101
Total silver eq.
207.18Moz AgEq

Measured & indicated + Inferred

Measured & indicated
162.76Moz AgEq
Inferred
44.42Moz AgEq

Total Promontorio-La Negra Project mineral resource estimate; in situ tonnage, grades and metal content. Promontorio reported at 25 g/t AgEq cutoff and La Negra at 40 g/t AgEq cutoff.. Total combines resource categories with different confidence levels; inferred resources are not reserves.

Source Promontorio-La Negra 43-101 Resource Estimation (Nov 2023) (13.26 MB) · PDF page 14 · Aug 27, 2023

Market cap per resource ounce

Kootenay Silver · US$87.9M market cap

All categories
US$0.42/ oz AgEq
Measured & indicated
US$0.54/ oz AgEq
Inferred
US$1.98/ oz AgEq

Each figure divides the whole company market cap by that category’s reported ounces in this estimate. No ownership adjustment; other company assets are not deducted. Resource ounces are not recoverable production or cash value. Share price 2026-09-21 · FX 2026-09-22.

Total Project

CategoryTonnageMtGradeContained metalCut-off
Silverg/tGoldg/tLead%Zinc%Silver eq.g/tSilverMozGoldkozLeadMlbZincMlbSilver eq.Moz
Measured12.45370.4560.530.61111.714.82183146.03166.6244.72
Indicated34.9547.50.360.40.4710553.4404306.72361118.04
Measured & indicatedsubtotal47.444.80.3850.430.5106.868.23587452.75527.62162.76
Inferred15.8334.60.3250.810.8987.317.61165282.27310.2544.42
Breakdown by deposit (2) — restates the totals above, not additional to them

La Negra

CategoryTonnageMtGradeContained metal
Silverg/tGoldg/tSilver eq.g/tSilverMozGoldkozSilver eq.Moz
Indicated5.29126.30.067129.321.451121.97
Inferred1.26112.20.06114.84.5424.64

Cut-off 40 g/t

Promontorio

CategoryTonnageMtGradeContained metal
Silverg/tGoldg/tLead%Zinc%Silver eq.g/tSilverMozGoldkozLeadMlbZincMlbSilver eq.Moz
Measured12.45370.4560.530.61111.714.82183146.03166.6244.72
Indicated29.6633.50.4120.470.55100.731.95393306.7236196.07
Measured & indicatedsubtotal42.1234.50.4250.490.5710446.77575452.75527.62140.79
Inferred14.5827.90.3480.420.4584.913.07163136.24143.6339.78

Cut-off 25 g/t

Shaded columns are equivalent figures. An equivalent column combines the metals beside it on the company's own price assumptions. It is not additional metal and must not be added to them.

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