ISOENERGY AND PUREPOINT INTERSECT UP TO 8.1% U₃O₈ AT DORADO PROJECT
IsoEnergy (NYSE American: ISOU) and Purepoint Uranium reported significant uranium discoveries from their summer drill program at the 50/50 joint venture Dorado Project in Saskatchewan's Athabasca Basin. The standout result came from drill hole PG25-07A, which yielded 2.1 metres grading 1.6% U₃O₈, including an impressive 0.4 metres at 8.1% U₃O₈, plus an additional 4.9 metres at 0.52% U₃O₈.
The companies completed 5,030 metres across 11 holes before wildfires forced an early end to the planned 5,400-metre program. Additional drilling at Serin and Turaco targets provided valuable geophysical calibration data. The planned Celeste project drilling was deferred due to wildfire risks. Follow-up programs are scheduled for early 2026 pending final assays and interpretations.
IsoEnergy (NYSE American: ISOU) e Purepoint Uranium hanno riportato significative scoperte di uranio dal loro programma estivo di trivellazione nel progetto Dorado in joint venture 50/50 nell'Athabasca Basin, Saskatchewan. Il risultato di rilievo proviene dal pozzo di trivellazione PG25-07A, che ha fornito 2,1 metri con 1,6% di U₃O₈, inclusi 0,4 metri a 8,1% di U₃O₈, oltre a ulteriori 4,9 metri a 0,52% di U₃O₈. Le aziende hanno completato 5.030 metri in 11 pozzi prima che gli incendi boschivi imponessero una chiusura anticipata del programma previsto di 5.400 metri. Drill aggiuntivi sui bersagli Serin e Turaco hanno fornito dati di calibrazione geofisica utili. I programmi di follow-up sono previsti per l'inizio del 2026, in attesa dei finali degli assay e delle interpretazioni.
IsoEnergy (NYSE American: ISOU) y Purepoint Uranium informaron de descubrimientos significativos de uranio en su programa de perforación de verano en el proyecto Dorado, una empresa conjunta 50/50 en la cuenca de Athabasca, Saskatchewan. El resultado destacado provino de la perforación PG25-07A, que arrojó 2,1 metros con 1,6% U₃O₈, incluyendo un impresionante 0,4 metros al 8,1% U₃O₈, además de 4,9 metros al 0,52% U₃O₈. Las compañías completaron 5.030 metros en 11 pozos antes de que los incendios forestales obligaran a finalizar anticipadamente el programa de 5.400 metros. Perforaciones adicionales en los objetivos Serin y Turaco proporcionaron valiosos datos de calibración geofísica. Los planes de perforación para Celeste se aplazaron debido a riesgos de incendio. Se espera que los programas de seguimiento comiencen a principios de 2026, pendientes de los ensayos finales e interpretaciones.
IsoEnergy (NYSE American: ISOU)와 Purepoint Uranium은 사우스캐나스카 주 Athabasca Basin에 위치한 50/50 합작 Dorado 프로젝트의 여름 시추 프로그램에서 의미 있는 우라늄 발견을 보고했습니다. 돋보이는 결과는 PG25-07A 시추 구멍에서 나왔으며 2.1m에서 U₃O₈ 1.6%를 산출했고, 0.4m에서 U₃O₈ 8.1%의 인상적인 구간과 4.9m에서 0.52% U₃O₈를 포함합니다. 회사들은 11개 구멍에 걸쳐 총 5,030m를 완료했으나 산불로 5,400m 프로그램의 예정된 조기 종료가 강요되었습니다. Serin과 Turaco 목표에 대한 추가 시추는 귀중한 지구물리 보정 데이터를 제공했습니다. Celeste 프로젝트의 시추는 산불 위험으로 연기되었습니다. 추후 프로그램은 2026년 초에 최종 분석 및 해석이 확정되는 대로 예정되어 있습니다.
IsoEnergy (NYSE American: ISOU) et Purepoint Uranium ont annoncé des découvertes significatives d’uranium lors de leur programme estival de forage dans le projet Dorado en coentreprise 50/50 dans le bassin Athabasca, Saskatchewan. Le résultat marquant provient de la carotte PG25-07A, qui a donné 2,1 mètres à 1,6% d’U₃O₈, dont un impressionnant 0,4 mètre à 8,1% d’U₃O₈, et 4,9 mètres à 0,52% d’U₃O₈ supplémentaires. Les sociétés ont terminé 5 030 mètres sur 11 forages avant que les incendies de forêt n’obligent une fermeture anticipée du programme prévu de 5 400 mètres. Des forages supplémentaires sur les cibles Serin et Turaco ont fourni des données de calibration géophysique précieuses. Le programme de forage prévu pour Celeste a été différé en raison des risques d’incendie. Les programmes de suivi sont prévus pour début 2026, en attendant les résultats finaux et les interprétations.
IsoEnergy (NYSE American: ISOU) und Purepoint Uranium meldeten signifikante Urangrundlagen aus ihrem Sommer-Bohrprogramm beim 50/50-Joint-Venture Dorado-Projekt im Athabasca-Becken in Saskatchewan. Das herausragende Resultat stammte aus Bohrloch PG25-07A, das 2,1 Meter mit 1,6% U₃O₈ lieferte, einschließlich einer beeindruckenden 0,4 Meter bei 8,1% U₃O₈ sowie zusätzlich 4,9 Meter bei 0,52% U₃O₈. Die Unternehmen schlossen 5.030 Meter in 11 Bohrungen ab, bevor Waldbrände das geplante 5.400-Meter-Programm vorzeitig beendeten. Weitere Bohrungen bei den Zielen Serin und Turaco lieferten wertvolle geophysikalische Kalibrierungsdaten. Die geplanten Bohrungen für Celeste wurden aufgrund von Waldbrandrisiken verschoben. Folgeprogramme sind für Anfang 2026 vorgesehen, vorbehaltlich der abschließenden Assays und Interpretationen.
IsoEnergy (بورصة NYSE الأمريكية: ISOU) وPurepoint Uranium أعلنا عن اكتشافات هامة لليورانيوم من برنامج الحفر الصيفي في مشروع Dorado بالشراكة 50/50 في حوض Athabasca في ساسكاتشوان. النتيجة البارزة جاءت من بئر الحفر PG25-07A، حيث أسفر عن 2.1 متر بنسبة 1.6% U₃O₈، متضمنة 0.4 متر بمقدار 8.1% U₃O₈، إضافة إلى 4.9 متر بنسبة 0.52% U₃O₈، كما هو مذكور. أكملا 5,030 متر عبر 11 بئرًا قبل أن تجبر حرائق الغابات إنهاء البرنامج المخطط لــ 5,400 متر مبكرًا. قدمت الحفريات الإضافية عند أهداف Serin وTuraco بيانات معايرة جيوفزيائية قيمة. تم تأجيل حفر Celeste بسبب مخاطر الحرائق. من المقرر أن تتابع البرامج في أوائل 2026، بناءً على النتائج النهائية والتفسيرات.
IsoEnergy（美国纽约证券交易所：ISOU） 与 Purepoint Uranium 在萨斯喀彻温省阿瑟巴斯卡盆地的 50/50合资 Dorado 项目 夏季钻探计划中宣布了重要的铀发现。突出的结果来自钻孔 PG25-07A，产出 2.1 米，U₃O₈ 含量 1.6%，其中还包括一个引人注目的 0.4 米，U₃O₈ 含量 8.1%，以及额外的 4.9 米，0.52% U₃O₈。两家公司在 11 根钻孔中累计完成 5,030 米，但野火迫使原计划的 5,400 米项目提前结束。对 Serin 和 Turaco 目标的追加钻探提供了宝贵的地球物理标定数据。由于野火风险，Celeste 项目的钻探被推迟。后续计划在 2026 年初进行，需待最终测定值和解读结果。
- None.
- Program curtailed due to wildfires, falling short of planned 5,400-metre target
- Celeste project drilling deferred due to wildfire risks
- No significant uranium mineralization found in Turaco Grid drilling
- Most drill hole assay results still pending
Insights
High-grade uranium discovery strengthens IsoEnergy/Purepoint's Dorado Project, with 8.1% U₃O₈ intersection demonstrating exceptional enrichment potential.
The latest drill results from the IsoEnergy-Purepoint joint venture represent a significant advancement for the Dorado Project. The standout intersection in hole PG25-07A of
The additional
While the summer program was curtailed due to wildfires (completing 5,030 meters across 11 holes versus the planned 5,400 meters), the high-grade results from the initial assays validate the exploration model. The absence of mineralization in the Turaco Grid drilling is not unusual in uranium exploration, where deposits can be highly localized. The anomalous radioactivity in the Serin Grid (up to 1,200 CPS) provides secondary targets for future investigation.
The southeastern margin of Saskatchewan's Athabasca Basin, where this project is located, has historically produced some of the world's richest uranium deposits. This discovery continues to demonstrate the region's exceptional uranium potential. The planned follow-up drilling in 2026 will be critical to determining the Nova zone's dimensions and continuity.
"Eight percent uranium is an excellent grade from the centre of the very strong radioactive interval drilled by hole 7A," said Chris Frostad, President and CEO of Purepoint Uranium. "These assays reinforce the strength of this newly discovered system and provide a solid anchor point as we continue to test the mineralized structure in all directions."
Highlights:
- Drill hole PG25-07A intersected 0.4 metres at
8.1% U₃O₈ from within 2.1 metres of1.6% U₃O₈ at the Nova discovery zone. The hole also returned an additional 4.9 metres at0.52% U₃O₈, that included 0.4 metres at2.9% U₃O₈. - Select samples from PG25-07A were fast-tracked for assay to confirm
uranium grades and mineral composition. Full assays from all holes remain pending. - A total of 5,030 metres were completed across 11 holes before wildfires curtailed the planned 5,400-metre summer drill program.
- Additional drilling at Serin and Turaco targets, within the Dorado Project, has provided valuable data for calibration of the project's geophysics.
- Celeste project drill program deferred due to ongoing wildfire risks across northern
Saskatchewan . - Follow-up programs planned for early 2026 pending final assays and geologic/geophysical interpretation.
Despite having time and budget remaining, the program was cut short due to regional wildfires that limited helicopter access and created hazardous field conditions. As a result, drilling at the nearby Celeste project, also a Purepoint-IsoEnergy joint venture, has been deferred to a future program.
Table 1: Assay Results of Nova Discovery Drill Holes Received to Date
Hole ID | From (m) | To (m) | Length | % U3O8 |
PG25-07A | 384.3 | 386.4 | 2.1 | 1.62 |
Includes | 386.0 | 386.4 | 0.4 | 8.13 |
391.8 | 396.7 | 4.9 | 0.52 | |
Includes | 392.6 | 392.9 | 0.3 | 2.47 |
Includes | 394.5 | 394.9 | 0.4 | 2.92 |
399.4 | 399.7 | 0.3 | 0.24 | |
402.2 | 402.8 | 0.6 | 0.25 | |
Previously Reported Assays | ||||
PG25-04 | 386.3 | 386.9 | 0.6 | 0.96 |
409.1 | 409.5 | 0.4 | 0.15 | |
PG25-05 | 328.9 | 329.9 | 1.0 | 2.19 |
Includes | 329.2 | 329.5 | 0.3 | 5.38 |
399.3 | 399.6 | 0.3 | 0.10 | |
Turaco Grid Drilling
Two holes (TUR25-01 and TUR25-02) totaling 832 metres were completed at the Turaco Grid, targeting two parallel, newly reinterpreted airborne electromagnetic (EM) conductors within Zone 3. Neither hole encountered anomalous radioactivity, but both the results will help calibrate the Dorado Project's updated geophysical model. The highest radioactivity returned from the downhole probe was 578 CPS.
Serin Grid Drilling
Two holes (SL25-10 and SL25-11) were drilled at the Serin Grid, totaling 1,032 metres. While uranium mineralization was not encountered in SL25-10, anomalous radioactivity was hosted by a 6-metre-wide chloritized pegmatite in SL25-11 and returned up to 1,200 CPS from the downhole gamma probe. The drill hole results provide valuable insights into the basement geology and structural context that will guide future targeting.
Next Steps
Purepoint and IsoEnergy are now awaiting the full suite of geochemical assays and structural interpretations for the 2025 drill program. The results will support detailed planning for follow-up drilling in 2026, focused on expanding Nova and testing priority corridors across the broader Dorado Project property.
About the Dorado JV Project
The Dorado Project (Figure 3) is the flagship project of the IsoEnergy-Purepoint 50/50 joint venture, a partnership encompassing more than 98,000 hectares of prime uranium exploration ground. The Dorado Project includes the former
Recent drilling by IsoEnergy east of the Hurricane Deposit has intersected strongly elevated radioactivity in multiple holes. The anomalous radioactivity confirms the continuity of fertile graphitic rock package and further highlights the opportunity for additional high-grade discoveries across the region.
The shallow unconformity depths across the Dorado Project property—typically between 30 and 300 metres—allow for highly efficient drilling and rapid follow-up on results.
Gamma Logging and Geochemical Assaying
A Mount Sopris 2PGA-1000 downhole total gamma probe was utilized for radiometric surveying. All drill intercepts are core width and true thickness is yet to be determined.
Core samples are submitted to the Saskatchewan Research Council ("SRC") Geoanalytical Laboratories in
The basement rock drill core is NQ in size and samples are created in the field by spitting the core in half. Field duplicate samples are also created in the field by spitting every 30th sample of remaining core; one quarter is sent to the laboratory and one quarter of the core remains in the core box. Data verification includes internal SRC laboratory quality assurance and quality control (QA/QC), blanks, comparison of results of the duplicate samples and variance of standard samples.
References
Alonso, D., Dalidowicz, F., Mondy, J., 1991: Henday Lake Project 1991 Winter Activities and Results, Cogema Canada Limited.
Saskatchewan Mineral Assessment File Number 74I-0053.
Cutts, C. and Lesiczka, M., 2007: Henday Lake Project 2007 Activities and Results, Areva Resources Canada Inc.
Saskatchewan Mineral Assessment File Number 74I08-0071.
Donmez, S., 2013: Hatchet Lake Project, Richardson Lake Area, Winter 2013 Diamond Drilling Program, Denison Mines Corp.
Saskatchewan Mineral Assessment File Number MAW00308
Goulet, D., Pascal, M., and Donmez, S., 2015: Murphy Lake Diamond Drilling Program and Slingram Moving Loop Surface Transient
Electromagnetic Survey, Denison Mines Corp., Saskatchewan Mineral Assessment File Number MAW01724
Munholland, P. and Bingham, D., 1999: Henday Lake Project 1999 Activities and Results, Cogema Resources Inc.
Mineral Assessment File Number 74I09-0062.
Qualified Person Statement
The scientific and technical information contained in this news release relating to IsoEnergy and Purepoint was reviewed and approved by Dr. Dan Brisbin, P.Geo., IsoEnergy's Vice President, Exploration and Scott Frostad BSc, MASc, P.Geo., Purepoint's Vice President, Exploration, who are "Qualified Persons" (as defined in NI 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101")).
For additional information with respect to the current mineral resource estimate for IsoEnergy's Hurricane Deposit, please refer to the Technical Report prepared in accordance with NI 43-101 entitled "Technical Report on the Larocque East Project,
This news release refers to properties other than those in which IsoEnergy and Purepoint have an interest. Mineralization on those other properties is not necessarily indicative of mineralization on the Joint Venture properties.
About IsoEnergy Ltd.
IsoEnergy (NYSE American: ISOU; TSX: ISO) is a leading, globally diversified uranium company with substantial current and historical mineral resources in top uranium mining jurisdictions of
About Purepoint
Purepoint Uranium Group Inc. (TSXV: PTU) (OTCQB: PTUUF) is a focused explorer with a dynamic portfolio of advanced projects within the renowned
Additionally, the Company holds a promising VMS project currently optioned to and strategically positioned adjacent to and on trend with Foran Mining Corporation's McIlvenna Bay project. Through a robust and proactive exploration strategy, Purepoint is solidifying its position as a leading explorer in one of the globe's most significant uranium districts.
Neither the Exchange nor its Regulation Services Provider (as that term is defined in the policies of the Exchange) accepts responsibility for the adequacy or accuracy of this Press release.
Cautionary Statement Regarding Forward-Looking Information
This press release contains "forward-looking information" within the meaning of applicable Canadian securities legislation. Generally, forward-looking information can be identified by the use of forward-looking terminology such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved". This forward-looking information may relate to additional planned exploration activities, including the timing thereof and the anticipated results thereof; and any other activities, events or developments that the companies expect or anticipate will or may occur in the future.
Forward-looking statements are necessarily based upon a number of assumptions that, while considered reasonable by management at the time, are inherently subject to business, market and economic risks, uncertainties and contingencies that may cause actual results, performance or achievements to be materially different from those expressed or implied by forward-looking statements. Such assumptions include, but are not limited to, that planned exploration activities are completed as anticipated; the anticipated costs of planned exploration activities, the price of uranium; that general business and economic conditions will not change in a materially adverse manner; that financing will be available if and when needed and on reasonable terms; and that third party contractors, equipment and supplies and governmental and other approvals required to conduct the Joint Venture's planned activities will be available on reasonable terms and in a timely manner. Although each of IsoEnergy and Purepoint have attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information.
Such statements represent the current views of IsoEnergy and Purepoint with respect to future events and are necessarily based upon a number of assumptions and estimates that, while considered reasonable by IsoEnergy and Purepoint, are inherently subject to significant business, economic, competitive, political and social risks, contingencies and uncertainties. Risks and uncertainties include but are not limited to the following: the inability of the Joint Venture to complete the exploration activities as currently contemplated; ; uncertainty of additional financing; no known mineral resources or reserves; aboriginal title and consultation issues; reliance on key management and other personnel; actual results of technical work programs and technical and economic assessments being different than anticipated; regulatory determinations and delays; stock market conditions generally; demand, supply and pricing for uranium; and general economic and political conditions. Other factors which could materially affect such forward-looking information are described in the risk factors in each of IsoEnergy's and Purepoint's most recent annual management's discussion and analyses or annual information forms and IsoEnergy's and Purepoint's other filings with the Canadian securities regulators which are available, respectively, on each company's profile on SEDAR+ at www.sedarplus.ca. IsoEnergy and Purepoint do not undertake to update any forward-looking information, except in accordance with applicable securities laws.
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SOURCE IsoEnergy Ltd.
FAQ
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