API.CN · 2026-06-29 12:00:00

Appia Identifies Three High-Priority Drill Targets at Its Otherside Uranium Property Similar to the McArthur River Ingress/Egress Deposit Model

Drill Results

Appia Identifies Three High-Priority Drill

Targets at Its Otherside Uranium Property

Similar to the McArthur River Ingress/Egress

Deposit Model

Toronto, Ontario--(Newsfile Corp. - June 29, 2026) - Appia Rare Earths & Uranium Corp.

(CSE: API)

(OTCQB: APAAF) (FSE: A0I0) (MUN: A0I0) (BER: A0I0)

(the "

Company

" or "

Appia

") is pleased to

announce that newly processed SPARTAN Magnetotelluric ("MT") survey data along 3 lines (Figure 1)

has been received. The Company views the newly processed MT results, in combination with their

previous geophysical datasets, as extremely encouraging. After initial review, they have identified a

highly prospective drill target corridor on Line 2 at the Company's 100 percent owned Otherside Uranium

Property (the "Property") in Saskatchewan's Athabasca Basin, where targets P-09, P-09A, and P-10

(Figure 1) occur within a major electromagnetic (EM) conductor break/offset that displays some

geophysical similarities to the structural setting of Cameco's McArthur River uranium deposit.

Cameco's McArthur River uranium mine is the world's largest super high-grade uranium mine and

remains one of the Athabasca Basin's premier uranium operations.

Line 2 cuts across the central break of the approximately 49-km long Otherside conductor trend. This

area has been a key part of Appia's exploration thesis since the Property was originally staked several

years ago, as the large conductor offset near the center of the claim block was recognized as a

potentially favourable structural setting for Athabasca-style unconformity-type uranium mineralization.

The newly processed MT data has now provided stronger support for the Company's original

interpretation. Within the area of the conductor break surveyed by Line 2, and specifically in the area of

proposed drill targets P-09, P-09A, and P-10, the data has identified a combination of geophysical

features (Figure 2) that Appia considers highly prospective. These include:

high-density chimney-like responses within the sandstone column,

relatively low magnetic response,

a deep wide basement EM conductor system, (more than 3 km depth),

two or more interpreted faults,

an approximate 100-meter offset in the unconformity (potential structural geochemical trap) at ~

700-800 meters depth, resulting from an interpreted thrust fault.

Tom Drivas, CEO of Appia, commented:

"The newly processed MT data from Line 2 has identified what we believe is the most compelling drill

target area at Otherside. Drill targets P-09, P-09A, and P-10 occur within a major conductor break and

display several geophysical features that strengthen our original uranium exploration model for the

Property. This exciting development is pointing us toward a focused target area with characteristics

reminiscent of Cameco's world-renowned McArthur River super high grade uranium deposit, and we

are eager to advance the Property toward drilling as soon as possible."

The above-mentioned combination of geophysical features provides a strong rationale for drill testing. At

McArthur River, uranium mineralization is associated with the P2N Thrust Fault and associated P2 North

conductor, where unconformity offset, sandstone fracturing, alteration, and structurally controlled

mineralization occur near the contact between crystalline basement rocks and the overlying Athabasca

sandstone (Figure 3). The Line 2 target area at Appia's Otherside Uranium Property displays a similar

combination of key geophysical features, which further supports the Company's view that this area

represents a high-priority drill target.

The physical responses of the chimney-like structures at the Property signify highly altered, dense quartz-

rich zones indicative of a major hydrothermal fluid pathway. High concentrations of tourmaline (e.g.,

magnesium-rich dravite with a density of 3.03 to 3.18 g/cm³) combined with pervasive silicification

decrease porosity and significantly increase rock density. This signature points toward major

hydrothermal fluid movement within/near a fault system(s) with alteration halos of tourmaline, quartz, and

illite, a primary vector for unconformity-type uranium deposits, like the McArthur River ingress/egress

type (Figure 4).

Other notable anomalies along Line 2 also appear to display interpreted chimney-like geophysical

features extending upward from depth toward the surface or near-surface environment. These features

may represent potential structural pathways for hydrothermal fluids and could indicate favourable

conditions for additional unconformity-type uranium mineralization.

The processed data from Lines 1 and 3 are currently under further development and analysis. However,

based on the current interpretation, Line 2 has emerged as the immediate top priority area for follow-up

exploration drilling.

Appia is open to strategic partnership opportunities that may assist in advancing the Property through

the next phase(s) of exploration.

Figure 1 - MT Survey Lines and Drill Targets - Otherside Uranium Property, Saskatchewan. Source:

Google Earth Satellite Image - QGIS