Wesdome Intersects New Zone at Kiena’s Dubuisson Deposit
Wesdome (OTCQX:WDOFF) reported a new mineralized zone at the Dubuisson deposit, intersected by hole DB-25-068 returning 4.1 g/t Au over 25.8 metres (core length, uncapped), including 6.1 g/t Au over 6.1 metres. The interval begins at 410.4 metres and lies about 100 metres below the Dubuisson North Zone, roughly 350 metres from Level 33 exploration drift, indicating potential to expand the deposit at depth. As of mid-October 2025 the 2025 program completed 41 holes totalling 11,361 metres, with at least one follow-up hole planned and a larger barge program scheduled for summer 2026. Existing Dubuisson resources include a probable reserve of 36,400 oz at 5.8 g/t, indicated 18,000 oz at 4.6 g/t, and inferred 55,600 oz at 5.4 g/t.
Wesdome (OTCQX:WDOFF) ha riportato una nuova zona mineralizzata nella cava Dubuisson, intercettata dal pozzo DB-25-068 che restituisce 4.1 g/t Au su 25.8 metri (lunghezza del core, non tagliata), inclusi 6.1 g/t Au su 6.1 metri. L’intervallo inizia a 410.4 metri e si trova circa 100 metri sotto la North Zone di Dubuisson, a circa 350 metri dal drift esplorativo al Livello 33, suggerendo un potenziale ampliamento del giacimento in profondità. A metà ottobre 2025 il programma 2025 ha completato 41 fori per un totale di 11.361 metri, con almeno un foro di follow-up pianificato e un più ampio programma su chiatta previsto per l’estate 2026. Le risorse esistenti di Dubuisson includono una riserva probabile di 36.400 oz a 5.8 g/t, indicata 18.000 oz a 4.6 g/t, e inferita 55.600 oz a 5.4 g/t.
Wesdome (OTCQX:WDOFF) informó una nueva zona mineralizada en el depósito Dubuisson, cruzada por la perforación DB-25-068 que arrojó 4.1 g/t Au sobre 25.8 metros (longitud del núcleo, sin recortar), incluyendo 6.1 g/t Au sobre 6.1 metros. El intervalo comienza a 410.4 metros y se encuentra a unos 100 metros por debajo de la North Zone de Dubuisson, aproximadamente a 350 metros del desvío de exploración del Nivel 33, lo que indica potencial para ampliar el yacimiento en profundidad. A mediados de octubre de 2025, el programa 2025 completó 41 agujeros por un total de 11,361 metros, con al menos un pozo de seguimiento planeado y un programa mayor de barcaza previsto para el verano de 2026. Los recursos existentes de Dubuisson incluyen una reserva probable de 36,400 oz a 5.8 g/t, indicados 18,000 oz a 4.6 g/t, e inferidos 55,600 oz a 5.4 g/t.
Wesdome (OTCQX:WDOFF)가 Dubuisson 광맥에서 새로운 광맥 지대를 보고했습니다. DB-25-068 구멍으로 교차되었고 4.1 g/t Au를 25.8미터에서 얻었으며(코어 길이, 절단 없이), 포함 6.1 g/t Au를 6.1미터를 포함합니다. 구간은 410.4미터에서 시작되며 Dubuisson North Zone 아래 약 100미터, Level 33 탐사 드리프트에서 약 350미터 떨어진 위치에 있어 깊이에서의 광상 확장 가능성을 시사합니다. 2025년 10월 중순 기준으로 2025년 프로그램은 41개 구멍, 총 11,361미터를 완료했고, 최소 하나의 후속 구멍이 계획되었으며 2026년 여름에는 더 큰 바지선(barge) 프로그램이 예정되어 있습니다. Dubuisson 자원은 추정 매장량인 36,400 oz at 5.8 g/t의 가능 매장량, 표시됨 18,000 oz at 4.6 g/t, 그리고 추정 55,600 oz at 5.4 g/t를 포함합니다.
Wesdome (OTCQX:WDOFF) a signalé une nouvelle zone mineralisée dans le gisement Dubuisson, intersectée par le forage DB-25-068 qui a donné 4,1 g/t Au sur 25,8 mètres (longueur du cœur, non arrondie), incluant 6,1 g/t Au sur 6,1 mètres. L’intervalle commence à 410,4 mètres et se situe à environ 100 mètres en dessous de la North Zone de Dubuisson, à environ 350 mètres du drift d’exploration du Niveau 33, ce qui indique un potentiel d’expansion de la mine en profondeur. À la mi-octobre 2025, le programme 2025 a complété 41 forages pour un total de 11 361 mètres, avec au moins un forage de suivi prévu et un programme plus important sur barge prévu pour l’été 2026. Les ressources existantes de Dubuisson comprennent une réserve probable de 36 400 oz à 5,8 g/t, indiquée 18 000 oz à 4,6 g/t, et inférée 55 600 oz à 5,4 g/t.
Wesdome (OTCQX:WDOFF) meldete eine neue mineralisierte Zone am Dubuisson-Depon, die von Bohrloch DB-25-068 durchteilt wurde und 4,1 g/t Au über 25,8 Meter (Kernlänge, ungekappt) ergibt, einschließlich 6,1 g/t Au über 6,1 Meter. Das Intervall beginnt bei 410,4 Metern und liegt etwa 100 Meter unter der Dubuisson North Zone, rund 350 Meter vom Explorationsdrift Level 33 entfernt, was auf Potenzial zur Erweiterung des Vorkommens in der Tiefe hindeutet. Bis Mitte Oktober 2025 hat das Programm 2025 41 Bohrlöcher mit insgesamt 11.361 Metern abgeschlossen, mit mindestens einem Folgebohrloch geplant und einem größeren Barge-Programm, das für den Sommer 2026 vorgesehen ist. Die bestehenden Dubuisson-Ressourcen umfassen eine wahrscheinliche Reserve von 36.400 oz bei 5,8 g/t, indicierte 18.000 oz bei 4,6 g/t und abgeleitete 55.600 oz bei 5,4 g/t.
Wesdome (OTCQX:WDOFF) أبلغت عن منطقة mineralizada جديدة في ترسب Dubuisson، تم اكتشافها بواسطة الحفرة DB-25-068 عائدة 4.1 g/t Au على 25.8 متر (طول اللب، غير مقطوع)، بما في ذلك 6.1 g/t Au على 6.1 أمتار. تقع الفترة عند 410.4 متر وتبعد حوالى 100 متر أسفل منطقة Dubuisson North Zone، وعلى نحو تقريبي 350 متر من ميل الاستكشاف Level 33، مما يشير إلى إمكانية توسيع الحوض عند العمق. وبحلول منتصف أكتوبر 2025 أكمل برنامج 2025 41 بئرًا بإجمالي 11,361 متر، مع التخطيط لبئر متابعة واحد على الأقل وبرنامج سفينة/بارجة أوسع محدد للصيف 2026. تشمل موارد Dubuisson الحالية احتياطيًا محتملًا قدره 36,400 أوقية عند 5.8 جم/طن، محفزًا 18,000 أوقية عند 4.6 جم/طن، وموارد مستدلّة 55,600 أوقية عند 5.4 جم/طن.
Wesdome (OTCQX:WDOFF) 报告在 Dubuisson 矿床发现新的矿化区域，钻孔 DB-25-068 相交，回出 4.1 g/t Au 25.8 米（芯长，未截断），其中包括 6.1 g/t Au 6.1 米。该区间始于 410.4 米，位于 Dubuisson North Zone 约 100 米之下，距离 Level 33 探钻巷道约 350 米，表明在深部扩展矿床的潜力。到 2025 年 10 月中旬，2025 年计划完成 41 个孔，总计 11,361 米，至少计划一个后续孔，并计划在 2026 年夏季实施更大规模的驳船/泊位程序。Dubuaisson 的现有资源包括可能储量 36,400 盎司，品位 5.8 g/t，指示量 18,000 盎司，品位 4.6 g/t，以及推定量 55,600 盎司，品位 5.4 g/t。
- Drill intercept 4.1 g/t Au over 25.8 metres
- High-grade interval 6.1 g/t Au over 6.1 metres
- 2025 drill progress 41 holes, 11,361 metres drilled
- Proximity to infrastructure within 350 metres of Level 33 drift
- Existing probable reserve 36,400 oz at 5.8 g/t Au
- True width of mineralization cannot be estimated with current holes
- Additional drilling required to define extent and convert resources
Returns 4.1 g/t Au (uncut) over 25.8 metres (core length) below current resource
TORONTO, Oct. 27, 2025 (GLOBE NEWSWIRE) -- Wesdome Gold Mines Ltd. (TSX:WDO, OTCQX:WDOFF) (“Wesdome” or the “Company”) is pleased to announce a new mineralized zone at the Dubuisson deposit, located east of the Kiena Deep deposit at the Company’s
The new zone has been intersected by drill hole DB-25-068, returning 4.1 g/t Au (uncut) over 25.8 metres (core length). Located approximately 100 metres below, and lateral to, the Dubuisson North Zone and currently interpreted to be between the Dubuisson North and South zones, this new zone represents a compelling opportunity to expand the Dubuisson deposit at depth. The combined grade and thickness are particularly encouraging, as the intercept highlights the potential for future bulk-tonnage mineralization at Kiena.
Highlights
New Dubuisson Zone (Figures 1,2 Table 1)1
Drilling confirms a new mineralized zone and resource expansion potential
- Hole DB-25-068: 4.1 g/t Au over 25.8 metres (from 410.4 metres, core length, uncapped)
Including: 6.1 g/t Au over 6.1 metres (from 412.5 metres, core length, uncapped)
Anthea Bath, President and Chief Executive Officer, stated, “This new mineralized zone underscores the strong potential for expansion at the Dubuisson deposit. The intercept’s grade, width, and proximity to existing infrastructure – within 350 metres of the Level 33 exploration drift – make it particularly significant. Like the Shawkey South Zone, this area remains completely open at depth and exhibits strong geological similarities to the adjacent Goldex mine. This style of mineralization is particularly exciting as it highlights the potential for bulk-tonnage underground deposits within our land package. While it’s still early days, we are beginning to think about how such deposits could augment future production.”
Jono Lawrence, Senior Vice President Exploration and Resources, added, “Wesdome initiated drilling at the diorite-hosted Dubuisson deposit in June, targeting infill and geotechnical holes to support resource conversion within the Dubuisson North and South zones, and we successfully intercepted a new zone late in the summer. As of mid-October, the 2025 drilling campaign has completed 41 holes totaling 11,361 metres drilled. To put this into perspective, only 53 holes had been drilled at Dubuisson in the three years prior to 2025, underscoring both how underexplored this deposit remains and the scale of its untapped potential within the broader Kiena Complex. The results to date continue to demonstrate that the more we drill, the more we find. At least one follow-up hole is planned before the end of the current barge drilling season, with a larger barge-based drilling program scheduled to commence in summer 2026. A more expansive exploration update will be released later in the fourth quarter.”
Technical Details
The Dubuisson deposit currently hosts a probable reserve of 36,400 ounces at 5.8 g/t, an indicated resource of 18,000 ounces at 4.6 g/t Au exclusive of reserves, and an inferred resource of 55,600 ounces at 5.4 g/t Au2.
The deposit is characterized by a stacked system of shallow-dipping, quartz-tourmaline veins present within sheared, albite and hematite-altered, subvertical diorite intrusive units, a style of mineralization distinct from that of Kiena Deep. The units trend approximately east-west, dip steeply, and occur in two broad groupings, the Dubuisson North Zone and the Dubuisson South Zone. The diorite units, along with feldspar porphyry dykes, crosscut the deformed ultramafic rocks and schist units that make up most of the host country rock.
Structural observations from drill core and televiewer readings indicate that the veins dip shallowly to the north. The true width of mineralization cannot be estimated due to the number of drill holes completed to date.
The quartz-tourmaline vein-hosted style of mineralization at Dubuisson is geologically similar to that identified through drilling at the Shawkey South Zone, located approximately two kilometres to the southwest, where drill hole S-21-831 intersected 2.3 g/t Au over 72.0 metres (refer to May 23, 2023 press release). Like Dubuisson, the Shawkey Zone is hosted within a diorite unit, and is located less than two kilometres west of, and along trend from, the Goldex mine intrusive.
A composite estimate returned 4.1 g/t Au over 25.8 metres from 410.4 metres down hole (core length, uncapped). This includes four intervals with grades comparable to, or exceeding, the cut-off grades previously used in resource estimation at the Dubuisson deposit (2.62 g/t Au cut-off; all core length, uncapped):
- 6.1 g/t Au over 6.1 metres at (from 412.5 metres)
- 3.8 g/t Au over 1.9 metres at (from 423.4 metres)
- 8.1 g/t Au over 3.5 metres at (from 428.6 metres)
- 3.6 g/t Au over 2.1 metres at (from 434.1 metres)
Applying lower cut-off grades could potentially define a broader mineralized interval.
About Wesdome
Wesdome is a Canadian-focused gold producer with two high-grade underground assets, the Eagle River mine in Ontario and the Kiena mine in Québec. The Company’s primary goal is to responsibly leverage its operating platform and high-quality brownfield and greenfield exploration pipeline to build a growing value-driven gold producer.
For Further Information
| Raj Gill SVP, Corporate Development & Investor Relations Phone: +1.416.360.3743 E-Mail: invest@wesdome.com | Trish Moran VP, Investor Relations Phone: +1.416.564.4290 E-mail: trish.moran@wesdome.com |
Technical Disclosure
Analytical work was performed by ALS Minerals of Val-d’Or (Quebec), a certified commercial laboratory (Accredited Lab #689). Sample preparation was completed at ALS Minerals in Val d'Or (Quebec). Assaying comprised fire assay methods with an atomic absorption finish. Any sample assaying >10 g/t Au was re-run using the fire assay method with gravimetric finish, and also with the metallic sieve method. In addition to laboratory internal duplicates, standards, and blanks, the geology department inserts blind duplicates, standards, and blanks into the sample stream at a frequency of one in twenty to monitor quality control. Additionally, blanks are inserted after visible gold is observed to highlight potential contamination between samples.
The technical content of this release has been compiled, reviewed, and approved by Serge Gonthier, P.Geo, Principal Geologist, Resources and Geology for Wesdome, and Breanne Beh, P. Geo., Director Surface and Greenfields Exploration for Wesdome, who are the Company’s "Qualified Person" as defined in National Instrument 43-101 - Standards of Disclosure for Mineral Projects.
Forward-Looking Information
This press release contains "forward-looking information" within the meaning of applicable Canadian securities legislation, including but not limited to statements regarding: the opportunity to expand the Dubuisson deposit at depth; the potential for future bulk-tonnage mineralization at Kiena; the planned follow-up hole before the end of the current barge drilling season, along with the larger barge-based drilling program scheduled for 2026; and the result of applying lower cut-off grades to the deposit to potentially define a broader mineralized interval. Forward-looking statements are based on the opinions and estimates of management as of the date such statements are made and they are subject to known and unknown risks, uncertainties, and other factors that may cause the actual results, level of activity, performance or achievements of Wesdome to be materially different from those expressed or implied by such forward-looking statements or forward-looking information. Although management of Wesdome has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or 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 forward-looking statements or information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. The Company undertakes no obligation to update forward-looking statements if circumstances, management’s estimates or opinions should change, except as required by securities legislation. Accordingly, the reader is cautioned not to place undue reliance on forward-looking statements.
APPENDIX
Figure 1. Plan View – Kiena Mine
Figure 2. Dubuisson Zone – Cross-Section (Looking West)
Table 1: Dubuisson Drill Results (Previously Unreleased)
Composite Results
Figures in table may not add due to rounding
| Hole No. | From (m) | To (m) | Core Length (m) | Estimated True Width (m) | Grade (g/t Au) | Cut Grade (g/t Au) | Target |
| DB-25-068 | 410.4 | 436.2 | 25.8 | --- | 4.1 | --- | New Dubuisson Zone |
| including | 412.5 | 418.6 | 6.1 | --- | 6.1 | --- | New Dubuisson Zone |
| including | 423.4 | 425.3 | 1.90 | --- | 3.8 | --- | New Dubuisson Zone |
| Including | 428.6 | 432.1 | 3.50 | --- | 8.1 | --- | New Dubuisson Zone |
| including | 434.1 | 436.2 | 2.10 | --- | 3.6 | --- | New Dubuisson Zone |
Composite estimate based on assay cut-off grade of 2.62 g/t Au, with up to two consecutive sample intervals with assays below 2.62 g/t Au dispersed between the samples with at or higher than cut-off grade values.
Assay Results
Figures in table may not add due to rounding
| Hole No. | From (m) | To (m) | Core Length (m) | Grade (g/t Au) | Cut Grade (g/t Au) | Target |
| DB-25-068 | 408.4 | 409.4 | 1.0 | 1.7 | New Dubuisson Zone | |
| DB-25-068 | 409.4 | 410.4 | 1.0 | 1.3 | New Dubuisson Zone | |
| DB-25-068 | 410.4 | 411.5 | 1.1 | 5.3 | New Dubuisson Zone | |
| DB-25-068 | 411.5 | 412.5 | 1.0 | 1.8 | New Dubuisson Zone | |
| DB-25-068 | 412.5 | 413.6 | 1.1 | 8.4 | New Dubuisson Zone | |
| DB-25-068 | 413.6 | 414.7 | 1.1 | 2.9 | New Dubuisson Zone | |
| DB-25-068 | 414.7 | 415.6 | 0.9 | 6.6 | New Dubuisson Zone | |
| DB-25-068 | 415.6 | 416.6 | 1.0 | 5.2 | New Dubuisson Zone | |
| DB-25-068 | 416.6 | 417.5 | 0.9 | 11.6 | New Dubuisson Zone | |
| DB-25-068 | 417.5 | 418.6 | 1.1 | 3.0 | New Dubuisson Zone | |
| DB-25-068 | 418.6 | 419.7 | 1.1 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 419.7 | 420.7 | 1.0 | 0.2 | New Dubuisson Zone | |
| DB-25-068 | 420.7 | 421.6 | 0.9 | 9.5 | New Dubuisson Zone | |
| DB-25-068 | 421.6 | 422.3 | 0.7 | 1.3 | New Dubuisson Zone | |
| DB-25-068 | 422.3 | 423.4 | 1.1 | 0.9 | New Dubuisson Zone | |
| DB-25-068 | 423.4 | 424.4 | 1.0 | 3.5 | New Dubuisson Zone | |
| DB-25-068 | 424.4 | 425.3 | 0.9 | 4.2 | New Dubuisson Zone | |
| DB-25-068 | 425.3 | 426.3 | 1.0 | 2.3 | New Dubuisson Zone | |
| DB-25-068 | 426.3 | 427.6 | 1.3 | 1.0 | New Dubuisson Zone | |
| DB-25-068 | 427.6 | 428.6 | 1.0 | 2.0 | New Dubuisson Zone | |
| DB-25-068 | 428.6 | 429.8 | 1.2 | 17.6 | New Dubuisson Zone | |
| DB-25-068 | 429.8 | 431.0 | 1.2 | 3.0 | New Dubuisson Zone | |
| DB-25-068 | 431.0 | 432.1 | 1.1 | 3.3 | New Dubuisson Zone | |
| DB-25-068 | 432.1 | 433.0 | 0.9 | 0.9 | New Dubuisson Zone | |
| DB-25-068 | 433.0 | 434.1 | 1.1 | 0.4 | New Dubuisson Zone | |
| DB-25-068 | 434.1 | 435.1 | 1.0 | 2.7 | New Dubuisson Zone | |
| DB-25-068 | 435.1 | 436.2 | 1.1 | 4.4 | New Dubuisson Zone | |
| DB-25-068 | 436.2 | 437.1 | 0.9 | 0.4 | New Dubuisson Zone | |
| DB-25-068 | 437.1 | 438.0 | 0.9 | 2.3 | New Dubuisson Zone | |
| DB-25-068 | 438.0 | 439.1 | 1.1 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 439.1 | 440.1 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 440.1 | 440.8 | 0.7 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 440.8 | 441.4 | 0.6 | 0.7 | New Dubuisson Zone | |
| DB-25-068 | 441.4 | 442.4 | 1.0 | 1.0 | New Dubuisson Zone | |
| DB-25-068 | 442.4 | 443.1 | 0.7 | 3.0 | New Dubuisson Zone | |
| DB-25-068 | 443.1 | 443.8 | 0.7 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 443.8 | 444.8 | 1.0 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 444.8 | 445.8 | 1.0 | 0.9 | New Dubuisson Zone | |
| DB-25-068 | 445.8 | 446.3 | 0.5 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 446.3 | 447.3 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 447.3 | 448.3 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 448.3 | 449.3 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 449.3 | 450.3 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 450.3 | 451.3 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 451.3 | 452.3 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 452.3 | 453.4 | 1.1 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 453.4 | 454.4 | 1.0 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 454.4 | 455.0 | 0.6 | 1.1 | New Dubuisson Zone | |
| DB-25-068 | 455.0 | 455.6 | 0.6 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 455.6 | 456.2 | 0.6 | 20.5 | New Dubuisson Zone | |
| DB-25-068 | 456.2 | 457.0 | 0.8 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 457.0 | 457.7 | 0.7 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 457.7 | 458.7 | 1.0 | 0.6 | New Dubuisson Zone | |
| DB-25-068 | 458.7 | 459.3 | 0.6 | 1.2 | New Dubuisson Zone | |
| DB-25-068 | 459.3 | 459.9 | 0.6 | 1.8 | New Dubuisson Zone | |
| DB-25-068 | 459.9 | 460.9 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 460.9 | 461.9 | 1.0 | 0.0 | New Dubuisson Zone | |
| DB-25-068 | 461.9 | 463.0 | 1.1 | 0.1 | New Dubuisson Zone | |
| DB-25-068 | 463.0 | 464.1 | 1.1 | 0.5 | New Dubuisson Zone | |
| DB-25-068 | 464.1 | 465.2 | 1.1 | 1.5 | New Dubuisson Zone | |
*Given that there is no conceptual geological model for Dubuisson Central Zone neither true width nor top cuts were defined.
____________
- No top cut or true width defined; down hole composite estimate based on assay cut-off grade of 2.62 g/t Au, with up to two consecutive sample intervals with assays below 2.62 g/t Au dispersed between the higher-grade values.
- Refer to March 19, 2025 press release for notes to Mineral Resources and Mineral Reserves.
PDF available: http://ml.globenewswire.com/Resource/Download/559e44f6-ebdd-4e74-8793-30487db3b234
Photos accompanying this announcement are available at:
https://www.globenewswire.com/NewsRoom/AttachmentNg/355dcb51-1316-4252-afb6-1af86f8f9dd6
https://www.globenewswire.com/NewsRoom/AttachmentNg/c014ef7e-1914-4db3-ab20-e32a875e4f41
FAQ
What did Wesdome (WDOFF) intercept at Dubuisson in October 2025?
How close is the new Dubuisson zone to Wesdome's underground infrastructure?
What are the current Dubuisson reserves and resources reported by Wesdome?
How much drilling has Wesdome completed at Kiena in 2025?
Will Wesdome follow up the DB-25-068 intercept at Dubuisson?
