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Vancouver, British Columbia, September 18, 2025 — Standard Uranium Ltd. (“Standard Uranium” or the “Company”) (TSX-V: STND) (OTCQB: STTDF) (Frankfurt: FWB:9SU0) is pleased to announce that it has signed a letter of intent (the “LOI”), dated September 15, 2025, with Collective Metals Inc. (CSE: COMT) (the “Optionee”), an arms-length party. Pursuant to the LOI, the Optionee will be granted the option (the “Option”) to acquire a seventy-five percent interest in the 4,002-hectare Rocas Project (“Rocas” or the “Project”) located in the eastern Athabasca Basin region (Figure 1).
Rocas Project Highlights:
- Prime Location – More than 7.5 km of exploration strike length alonga strong NE-SW magnetic low trend coincident with EM conductors and cross-cutting faults, providing shallow drill targets south of Key Lake.
- Uranium at Surface – Mineralized outcrop grab samples along approximately 900 metres of strike length, grading up to 0.50 wt.% U3O8 and never drill tested1 (Figure 2).
- New Uranium Targets – Results from a high-resolution ground gravity survey completed in 2024 highlight potential alteration halos and high-priority exploration targets along well defined structural corridors.
The Option is exercisable by the Optionee completing cash payments and share issuances, and incurring the following exploration expenditures on the Project:
| Consideration Payments | Consideration Shares | Exploration Expenditures | Operator Fees | Earn-in at completion of each Year | |
| Year 1 | $50,000 | $250,000 | $1,500,000 | 10% | 0% |
| Year 2 | $50,000 | $250,000 | $1,500,000 | 12% | 0% |
| Year 3 | $125,000 | $225,000 | $1,500,000 | 12% | 75% |
| Total | $225,000 | $725,000 | $4,500,000 |
Jon Bey, Standard Uranium CEO and Chairman, commented: “We are very pleased to have agreed to terms with our new partners at Collective Metals to advance our newly expanded Rocas Project. The global demand for nuclear energy requires more uranium exploration and high-grade discoveries. There is no better place on the planet to make these discoveries than the Athabasca Basin region. We look forward to completing this transaction and beginning phase one of our three-year exploration programs run by our Standard Uranium technical team.”
The Rocas project comprises 4,002 hectares, located 75 kilometers southwest of the Key Lake Mine and Mill facilities along Highway 914, and approximately 72 kilometers south of the present-day margin of the Athabasca Basin. The project was acquired via staking in May 2023 and recently expanded by an additional 931 hectares. Standard Uranium holds a 100%-interest in the Property.
The Project covers 7.5 kilometres of a northeast trending magnetic low/electromagnetic (“EM”) conductor corridor which hosts several uranium showings, including historical mineralized outcrop grab samples along approximately 900 metres of strike length, grading up to 0.50 wt.% U3O81. Notably, none of the historical uranium occurrences have been drill-tested.
Historical airborne EM work in 2017 defined conductive trends on the Project west of and sub-parallel to the Key Lake Road shear zone, corresponding with favourable metasedimentary basement lithologies. Multiple parallel conductors, offsets, and termination points indicate the trend widening and potential cross-cutting structures. Additionally, a 2007 field sampling program identified anomalous lakebed geochemical anomalies that statistically rank as greater than 95th percentile U, Co, V, and Zn along the conductor corridor, including high U/Th ratios2.
