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IDEX Metals Outlines Four Broad Chargeability Targets Across 91.45 Line-Kilometre IP Survey at the Freeze Copper Project, Idaho, USA

Corporate Updates

IDEX Metals Outlines Four Broad Chargeability Targets Across 91.45 Line-Kilometre IP Survey

at the Freeze Copper Project, Idaho, USA

Vancouver, British Columbia: August 11, 2026 - IDEX Metals Corporation (“ IDEX” or the “ Company”) is

pleased to announce the results of a 91.45 line-kilometre induced polarization (“IP”) survey completed on

its 31,645 acre Freeze Project in Washington County, Idaho. The survey was carried out by TMC

Geophysics between April 1 and June 11, 2026, and has been integrated with IP data acquired over the

same ground by Dias Geophysics in 2024 and Moombarriga Geophysics in 2025 to produce a merged

three-dimensional resistivity and chargeability model extending to approximately 600 metres below

surface.

Highlights

• 91.45 line-kilometres of pole-dipole IP acquired along 27 lines, with individual line lengths of 2.0 to

6.25 kilometres and effective penetration to approximately 275 to 550 metres depending on

electrode spacing.

• Four broad anomalous corridors each traced over approximately 1.1 to 1.6 kilometres of strike,

spatially associated with the Shiver, Kismet, North Breccia and CM targets.

• Anomalies correlate with known porphyry-style alteration and mineralization drilled in 2025 and

2026.

• Chargeability and resistivity zonation consistent with a porphyry system, the survey has outlined a

district-scale polarizable footprint with an inner low-chargeability, elevated-resistivity domain

flanked by a strongly polarizable halo, a pattern typical of zoned porphyry systems. The corridors

remain open in several directions.

• Copper, molybdenum and tungsten occurring at both priority targets: 2026 drilling has encountered

visually logged chalcopyrite, molybdenite and tungsten at North Breccia — an 800-metre step-out

north from 2025 drilling — while Kismet drilling continues to expand copper oxide mineralization,

including an 80-metre step-out west, that extends the known oxide zone laterally and at depth.

“This is a huge moment for Freeze." said Clayton Fisher, CEO of IDEX Metals. "The IP survey has

connected the dots across the project and shown us that we’re not looking at one isolated target —

we’re looking at a much larger system with four major chargeability corridors and several targets still

open.

Target A is the one we’re most focused on right now. It sits between Kismet and North Breccia, where

we already have copper, molybdenum and tungsten in the system, and it gives us a clear drill target in

the heart of our highest-priority area.

We have drills turning, assays pending, and a growing list of targets across the property. This is exactly

why we expanded the 2026 program — Freeze has scale, it has momentum, and we believe we’re just

getting started.”

IP Survey

Figure 1: Extent of the 2026 IDEX IP survey, Freeze Project.

IDEX completed 91.45 line-kilometres of pole-dipole induced polarization over the northwestern portion

of the Freeze Project between April 1 and June 11, 2026, carried out by TMC Geophysics. The survey

comprised twenty-seven lines in two orthogonal sets, allowing polarizable features to be traced in two

directions rather than inferred from a single orientation: thirteen lines, oriented NW/SE, ranging from

3.10 to 6.25 kilometres in length and totalling 63.45 line-kilometres, and fourteen lines, oriented NE/SW,

at 2.00 kilometres each, totalling 28.00 line-kilometres. Core coverage was acquired at 200 metre line

spacing across the highest-priority ground from L-3800N through L-5600N, widening to 400 metres to the

north, with the cross-cutting set averaging approximately 250 metre spacing across the main block and a

wider-spaced group of four reconnaissance lines to the south.

The 2026 data were merged with induced polarization surveys completed by Dias Geophysics in 2024 and

Moombarriga Geophysics in 2025 and inverted as a single three-dimensional dataset extending to

approximately 600 metres below surface, giving continuous coverage across the three campaigns.

Depth of investigation varies with electrode spacing and line orientation. Resolution of the inversion

decreases with depth, and features imaged below approximately 450 metres are less well constrained,

particularly on the wider-spaced lines.

IP Targets

Figure 2: Plan view chargeability (mV/V), 450 m depth slice, Freeze Project.

Figure 3: Plan view resistivity (ohm-m), 450 m depth slice, Freeze Project.

Target A

Target A is a broad, moderate to strong polarizable response in the east-central grid, trending northeast-

southwest over approximately 1.3 kilometres. The anomaly appears to sub-outcrop to the south (at the

North Breccia and Kismet) and deepens rapidly to the north. Target A is believed to be related to

mineralization and/or alteration associated with the North Breccia and Kismet targets.

Target A is the Company’s highest-priority target and is currently being drilled on both flanks of the

anomaly. The chargeability pattern at the margins of Target A is characteristic of the pyrite halo that

typically envelops a porphyry centre, and the copper, molybdenum and tungsten mineralization logged in

the 2026 core are consistent with a magmatic hydrothermal metal assemblage. Drilling will subsequently

trace the chargeability feature to the north to define the relationship between chargeability, resistivity

and mineralization.

Target B

Target B occupies the northeast of the survey area and comprises a broad, moderate to strong polarizable

response trending north-south over approximately 1.1 kilometres, locally coincident with a slight

resistivity decrease. The source is better defined below 250 metres of vertical depth and appears to

deepen westward. Target B is coincident with a broadscale copper-in-soils anomaly in the north of the

anomaly at the Shiver target and may reflect mineralization associated with deeply seated intrusions

largely covered by tertiary basalt.

Permitting for this target is in progress and IDEX anticipates receiving approval by the end of August 2026.

Target C

Target C covers the west-central grid and is defined by a broad, moderate to very strong response trending

northeast-southwest over approximately 1.3 kilometres. The anomaly widens markedly to the south,

where sources may also extend along northwest-southeast trends, and is locally shallow-seated in the

west.

Permitting for this target is in progress and IDEX anticipates receiving approval by the end of August 2026.

Target D

Target D in the northwest of the survey area, comprises a cluster of closely spaced moderate to very

strong polarizable anomalies trending northeast-southwest over approximately 1.6 kilometres and

remaining open to the northeast. Sources are generally better defined below 150 to 200 metres of vertical

depth. Target D may reflect mineralization (copper and gold) associated with the CM target. This portion

of the survey was completed by Dias Geoscience in 2024. This target is fully permitted.

Porphyry Potential

Taken together, the merged 2024 to 2026 inversion outlines a coherent, district-scale polarizable system

across the northwestern Freeze Project. The four corridors are individually 1.1 to 1.6 kilometres in strike

length, several remain open, and the strongest responses persist to the base of the reliably imaged model,

indicating the sources are not confined to near-surface cover. At Target A the chargeability halo, its spatial

coincidence with the pyrite intersected in drilling, and the copper-molybdenum-tungsten assemblage

logged in core together provide a coherent vector toward an interpreted porphyry centre to the east.

IDEX considers the Freeze Project to have the scale and zonation characteristics of a porphyry copper-

molybdenum-gold system and intends to test that interpretation directly with the current and planned

drill programs.

Figure 4: Chargeability depth slices at 150, 225, 300 and 450 m (mV/V), showing continuation of chargeable features to depth.

Slices are shown at equal spacing for legibility and the depth axis is exaggerated; spacing is not to scale.

Figure 5: Resistivity depth slices at 150, 225, 300 and 450 m (ohm-m). Slices are shown at equal spacing for legibility and the

depth axis is exaggerated; spacing is not to scale.

2026 Drilling Update

Figure 6: 2026 drill programme collar locations and hole traces over modelled chargeability, Freeze Project.

North Breccia

Drilling has commenced at North Breccia, with holes KSMT26-007, KSMT26-008 & KSMT26-011 having

been completed. The holes have intersected chalcopyrite, molybdenite, and tungsten mineralization has

been identified in the drill core by visual logging. The first drillholes were designed to test outcropping

mineralization at the North Breccia which is believed to be related to or a continuation of mineralization

encountered at the Kismet Breccia complex.

For the next hole, the Company will step out 800 m to the east to test the core of the chargeability high

at Target A and its relationship to mineralization in holes KSMT25-006, KSMT26-007, KSMT26-008,

KSMT26-009, KSMT26-010 and KSMT26-011. This collar location will allow the Company to test multiple

geological hypotheses related to the high chargeability feature at Target A. It will also allow IDEX to test

the anomaly to depth and in multiple directions including to the N-NW and S-SE.

The goal of the next series of drillholes will be to provide further information on the correlation between

high chargeability features and potential magmatic-hydrothermal alteration and mineralization.

Assays are currently pending for holes KSMT26-007 and KSMT26-008.