Appia Expands Otherside Uranium Property by Staking Twenty (20) Additional Mineral Claims Following Positive MT Survey Results
Appia expands its Otherside Uranium land package after MT survey anomalies and prepares geophysical work ahead of a planned 2027 drill program.
Rhea-AI Summary
Appia Rare Earths & Uranium (APAAF) has staked 20 additional mineral claims around its 100% owned Otherside Uranium Property in Saskatchewan’s Athabasca Basin, expanding the project to 26 claims totaling 20,443.95 hectares.
The staking follows Q1 2026 SPARTAN magnetotelluric (MT) survey results from three lines that outlined geophysical and structural anomalies interpreted as a potential ingress/egress-style setting favourable for uranium deposition, conceptually comparable to models used at the McArthur River deposit. Newly staked ground, acquired on June 22 and August 27, 2026, secures magnetic gradient and intensity changes and extends coverage northwest, east and southeast of the original property. Appia plans follow-up ground MT and Ambient Noise Tomography surveys, to be integrated into 3D geomodelling to refine targets for a planned 2027 drill campaign at Otherside.
Positive
- Otherside Property expanded to 26 claims totaling 20,443.95 hectares
- 20 new claims staked in June and August 2026 around MT anomalies
- Planned ground MT and ANT surveys to support a 2027 drill campaign
Negative
- None.
AI-generated analysis. How Rhea-AI works. Not financial advice.
Toronto, Ontario--(Newsfile Corp. - September 15, 2026) - Appia Rare Earths & Uranium Corp. (CSE: API) (OTCQB: APAAF) (FWB: A0I0) (MUN: A0I0) (BER: A0I0) (the "Company" or "Appia") is pleased to announce that it has staked 20 additional mineral claims (Figure 1) surrounding its 100 percent owned Otherside Uranium Property (the "Property") in Saskatchewan's Athabasca Basin.
The expansion follows encouraging results from the three survey lines completed as part of Appia's Q1 2026 SPARTAN Magnetotelluric ('MT') survey, which identified several geophysical and structural anomalies interpreted to represent a potential ingress/egress-style setting favourable for uranium deposition. This geological setting displays conceptual similarities to the structural controls associated with the high-grade McArthur River uranium deposit in Saskatchewan's Athabasca Basin (Figure 3). This new expansion increases the total Property size to 26 claims totaling 20,443.95 hectares.
The newly staked claims were selected to expand Appia's land position around prospective areas identified through the MT survey and the Company's expanded interpretation of the geophysical datasets that may lead to new potential zones for uranium mineralization.
The strategic expansion was completed for the following reasons:
- to provide additional ground northwest and southeast of the property, allowing the Company to extend future geophysical coverage and further evaluate Lines 1, 2, and 3 (Figures 2 through 4), in both directions; and
- to secure several magnetic gradient and intensity changes east and southeast of the original Property that may represent additional prospective geological and/or structural features warranting follow-up exploration (Figure 5).
Tom Drivas, CEO of Appia, commented:
"The positive MT results strengthen our confidence in the exploration potential at Otherside and highlight the importance of securing additional ground surrounding the Property. By expanding northwest, east, and southeast of the Property to cover several anomalies warranting follow-up exploration, Appia has strengthened its position to evaluate the broader uranium potential identified through its recent work."
The additional claims provide Appia with greater flexibility to refine its regional geological interpretations, and to advance follow-up exploration for the planned ground MT and Ambient Noise Tomography ("ANT") surveys. The data from these surveys are planned to be integrated into a multidisciplinary 3D geomodelling and used to refine target selection for Appia's planned 2027 drill campaign.
For the location of Appia's Otherside Uranium Property and its regional position relative to other major uranium deposits including UEC/Orano's Shea Creek, NexGen Energy's Arrow deposit at Rook I, and Paladin Energy's Triple R deposit, please refer to Figure 6.
Table 1 - Otherside Uranium Property Disposition Summary
| Disposition Number | Claim Status | Acquisition Date | Area (ha) |
| MC00015670 | Existing | 11/12/2021 | 3560.333 |
| MC00015671 | Existing | 11/12/2021 | 2165.528 |
| MC00015672 | Existing | 11/12/2021 | 2710.31 |
| MC00019821 | Existing | 10/22/2024 | 498.176 |
| MC00022066 | Existing | 1/10/2025 | 761.301 |
| MC00022079 | Existing | 1/20/2025 | 746.228 |
| MC00023757 | Newly Staked | 6/22/2026 | 146.839 |
| MC00023758 | Newly Staked | 6/22/2026 | 184.962 |
| MC00023759 | Newly Staked | 6/22/2026 | 447.652 |
| MC00023760 | Newly Staked | 6/22/2026 | 361.684 |
| MC00023761 | Newly Staked | 6/22/2026 | 282.864 |
| MC00023762 | Newly Staked | 6/22/2026 | 263.327 |
| MC00023763 | Newly Staked | 6/22/2026 | 530.935 |
| MC00023764 | Newly Staked | 6/22/2026 | 396.320 |
| MC00023765 | Newly Staked | 6/22/2026 | 698.917 |
| MC00023766 | Newly Staked | 6/22/2026 | 398.207 |
| MC00023767 | Newly Staked | 6/22/2026 | 263.128 |
| MC00023768 | Newly Staked | 6/22/2026 | 398.191 |
| MC00023769 | Newly Staked | 6/22/2026 | 331.227 |
| MC00024089 | Newly Staked | 8/27/2026 | 394.048 |
| MC00024090 | Newly Staked | 8/27/2026 | 1,421.205 |
| MC00024091 | Newly Staked | 8/27/2026 | 571.971 |
| MC00024092 | Newly Staked | 8/27/2026 | 655.765 |
| MC00024093 | Newly Staked | 8/27/2026 | 910.487 |
| MC00024094 | Newly Staked | 8/27/2026 | 766.347 |
| MC00024095 | Newly Staked | 8/27/2026 | 577.995 |
Figure 1 - Existing (black) and Newly Staked Claims (red) - Appia's Otherside Uranium Property
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/314389_47fe59f5c4811b52_001full.jpg
Figure 2 - SPARTAN MT Survey Line 1 Results
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https://images.newsfilecorp.com/files/5416/314389_47fe59f5c4811b52_002full.jpg
Figure 3 - Comparison of McArthur River's egress type uranium deposit v.s. Appia's MT survey Line 2 results displaying potentially similar geophysical and structural signatures. A) Appia's MT Survey Results, B) Resistivity model from the McArthur River AMT data (Tuncer et al., 2006), C) Typical egress-type deposit models in the Athabasca Basin (Jefferson et al., 2007). Note: These comparisons are conceptual exploration models based on geophysical interpretations; comparable uranium mineralization has yet to be discovered at Otherside.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/314389_47fe59f5c4811b52_003full.jpg
Figure 4 - SPARTAN MT Survey Line 3 Results
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https://images.newsfilecorp.com/files/5416/314389_47fe59f5c4811b52_005full.jpg
Figure 5 - Expanded Otherside Uranium Property showing MT survey lines and preliminary exploration targets over the Saskatchewan GeoAtlas aeromagnetic vertical derivative grid.
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https://images.newsfilecorp.com/files/5416/314389_47fe59f5c4811b52_006full.jpg
Figure 6 - Regional Athabasca Basin Bouguer gravity map showing Appia's Otherside Uranium Property and selected major uranium deposits in relation to broad regional gravity features. GeoAtlas Bouguer Gravity Map.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/314389_47fe59f5c4811b52_007full.jpg
References
Government of Saskatchewan. Saskatchewan Bouguer Gravity Map. Saskatchewan GeoAtlas, Government of Saskatchewan, accessed 24 June 2026. GeoAtlas, gisappl.saskatchewan.ca/Html5Ext/index.html?viewer=GeoAtlas.
Jefferson, C. W., D. J. Thomas, S. S. Gandhi, P. Ramaekers, G. Delaney, D. Brisbin, C. Cutts, P. Portella and R. A. Olson, 2007. Unconformity associated uranium deposits, in Jefferson, C.W., and Delaney, G., eds., EXTECH IV: Geology and Uranium EXploration TECHnology of the Proterozoic Athabasca Basin, Saskatchewan and Alberta: Geological Survey of Canada, Bulletin 588 (also Saskatchewan Geological Society, Special Publication 18; Geological Association of Canada, Mineral Deposits Division, Special Publication 4).
Tuncer, V., M. J. Unsworth, W. Siripunvaraporn and J. A. Craven, 2006. Exploration for unconformity type uranium deposits with audio magnetotelluric data: A case study from the McArthur River Mine, Saskatchewan (Canada), Geophysics, 71 (6), B201 - B209.
About the Otherside Property
The Otherside Property is strategically located within the prolific, uranium-bearing Athabasca Basin of Saskatchewan, Canada. This area is renowned for its significant uranium deposits and conditions that have historically led to major high-grade uranium discoveries.
The Otherside Property displays certain interpreted geophysical and structural characteristics comparable in concept to exploration vectors associated with high-grade Athabasca Basin uranium systems, including McArthur River. Such signatures include long structural corridors hosting multiple conductors with associated magnetic gradients and gravity low areas.
Otherside's property area is 20,443.95 hectares and is
Qualified Person
The technical content in this news release was reviewed and approved by Dr. Irvine R. Annesley, P.Geo., Senior Exploration Advisor of Appia and a Qualified Person as defined by National Instrument 43-101.
About Appia Rare Earths & Uranium Corp.
Appia is a publicly traded Canadian company in the rare earth element and uranium sectors. The Company holds a
The Company is also focusing on delineating high-grade critical rare earth elements and gallium on the Alces Lake property and exploring for high-grade uranium in the prolific Athabasca Basin on its Otherside, Loranger, North Wollaston, and Eastside properties. The Company holds exploration rights covering 102,450.74 hectares (253,161.29 acres) in Saskatchewan. The Company also has a
Appia has 194.9 million common shares outstanding, 211.3 million shares fully diluted.
Cautionary note regarding forward-looking statements: This News Release contains forward-looking statements which are typically preceded by, followed by or including the words "believes", "expects", "anticipates", "estimates", "intends", "plans" or similar expressions. Forward-looking statements are not a guarantee of future performance as they involve risks, uncertainties and assumptions. We do not intend and do not assume any obligation to update these forward-looking statements and shareholders are cautioned not to put undue reliance on such statements.
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For more information, visit www.appiareu.com.
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Contacts:
| Tom Drivas CEO and Director (416) 876-3957 tdrivas@appiareu.com | Kurt Radtke President (907) 791-0213 kradtke@appiareu.com |
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/314389
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many mineral claims now make up Appia’s Otherside Uranium Property and what is the total area?
The Otherside Uranium Property now comprises 26 mineral claims with a total area of 20,443.95 hectares.
When were the newly staked Otherside claims acquired and how many were added on each date?
Appia staked newly added claims on two dates in 2026: 13 claims (MC00023757 to MC00023769) on June 22, 2026, and 7 claims (MC00024089 to MC00024095) on August 27, 2026.
What exploration work does Appia plan next for the Otherside Uranium Property?
Appia plans ground MT and Ambient Noise Tomography (ANT) surveys at Otherside. The company said data from these surveys will be integrated into multidisciplinary 3D geomodelling to refine targets for a planned 2027 drill campaign.
What conceptual geological model is guiding Appia’s interpretation of the MT results at Otherside?
The MT survey outlined anomalies interpreted as a potential ingress/egress-style setting favourable for uranium deposition. Appia notes conceptual similarities between these features and structural controls used in exploration models for high-grade Athabasca Basin uranium deposits such as McArthur River, while stating that comparable uranium mineralization has not yet been discovered at Otherside.
Who is the Qualified Person responsible for the technical information on the Otherside Property?
The technical content was reviewed and approved by Dr. Irvine R. Annesley, P.Geo., Senior Exploration Advisor to Appia and a Qualified Person as defined by National Instrument 43-101.
What is Appia’s broader exploration footprint in Saskatchewan and Brazil?
Appia holds exploration rights covering 102,450.74 hectares in Saskatchewan, including Otherside, Loranger, North Wollaston and Eastside. It also holds a 25% interest in Ultra Rare Earth, whose Ultra Hard Rock and Ultra IAC projects in Goiás, Brazil, total 42,932.24 hectares.