BULGOLD Confirms Major Epithermal Gold System at Kopernica, Lutila Project
TORONTO, ON / ACCESS Newswire / September 29, 2026 / BULGOLD Inc. (TSXV:ZLTO) (the "Company" or "BULGOLD") is pleased to announce the geological and geochemical modeling results from its 2026 diamond drilling programme at the Kopernica Vein System, located within the Lutila Gold Project, Slovak Republic.
The 2026 campaign - comprising drill holes KPDD002, KPDD003, KPDD004 and KPDD005 - has successfully achieved a critical technical milestone, confirming the discovery of a major epithermal upflow zone hosted within a rhyolite rock flow dome package located immediately south of the historic Kremnica low-sulfidation epithermal gold mine.
1. Highlights |
- Intact Epithermal System Confirmed: Low-cost, shallow drilling successfully verified a robust, fully intact low-sulfidation epithermal system across the Company's 100%-controlled area.
- Broad Upflow Zone Defined: Integrating data from the 2026 campaign, two earlier BULGOLD holes, and three historic holes outlines an epithermal upflow zone at least 500 meters wide and up to 1,000m long. The zone features widespread low-grade gold, characteristic epithermal rock textures and supporting pathfinder elements, arsenic (As), antimony (Sb) and thallium (Tl).
- Advanced Predictive Modeling: Combining comprehensive multi-element geochemistry with targeted X-ray diffraction (XRD) data has successfully mapped the 3D structural architecture of the host rhyolite block. This new alteration and mineralisation model provides clear vectors toward quartz vein structures.
- Key Mineralisation Trends Defined: Drill data has mapped specific high-priority zones and new potential across the rhyolite block:
- First Adularia Discovery (KPDD005): Identified the first adularia on the property within a 60-meter downhole intersection of intense-to-strong silicification on the current eastern margin of the upflow zone.
- West Vein Potential (KPDD004): Pervasive quartz-illite alteration identified throughout the hole indicating strong proximity to a major fluid conduit, with the target remaining open at depth and along strike.
- Parallel Targets: Geological indicators highlight potential for parallel-trending upflow zones hosting hidden quartz vein targets within the block.
- Tier-1 Jurisdiction & Infrastructure Advantage: The Lutila Gold Project delivers a rare combination of high-impact, greenfields exploration potential situated within a premier, historic mining district in the European Union. The asset benefits from exceptional local infrastructure, year-round access, and a clear regulatory framework, significantly lowering development hurdles and operational costs.
- Situated Within a Tier-1 Historic Trend: The Lutila Gold Project sits squarely between Central Slovakia's premier precious metal hubs: the Kremnica and Banská Å tiavnica epithermal vein fields. These adjacent districts boast a 1,000-year mining legacy, providing a strong geological validation that the Lutila volcanic corridor is deeply rooted in a highly productive, gold-bearing regional framework.
- Exploration target: underground, high-grade gold (Au) ± silver (Ag) quartz veins.
Quote from the President & CEO, Mr. Sean Hasson:
"The 2026 drilling results mark a significant technical shift for the Kopernica Vein System. This campaign was designed to target narrow, gold-rich epithermal quartz veins; instead, the data has outlined an intact hydrothermal system spanning at least 500 meters in width. The presence of pervasive potassic alteration, elevated volatile pathfinder geochemistry, and widespread low-grade gold confirms that these drill holes have intersected the primary upflow zones of the system. Integrating XRD mineralogical data with multi-element lithogeochemistry has allowed us to model the alteration architecture of this completely altered rhyolite host block, providing clear vectors toward our primary target: epithermal quartz veins and associated hydrothermal breccias.
Historically, epithermal systems within this district exhibit well-defined vertical 'gold windows' - as seen at the nearby Kremnica epithermal deposit, which was mined over vertical extents of up to 400 meters. The strong hydrothermal brecciation and crustiform-colloform textures previously identified at surface across the property indicate a high fluid-flux environment driven by boiling processes, which are key mechanisms for quartz vein development. These drilling results validate our geological model and significantly expand the exploration potential of this 100%-controlled project as we advance our targeting strategy."
2. The Kopernica Vein System - Drilling |
The 2026 diamond drilling campaign at the Kopernica Vein System was designed to target interpreted epithermal quartz veins. The programme comprised four diamond drill holes - KPDD002, KPDD003, KPDD004 and KPDD005 - for a total of 780.05 metres. The campaign successfully achieved a critical technical milestone by expanding the project's scope from a discrete vein target to a large-scale epithermal upflow system with the potential to host multiple parallel vein structures.
The drilling programme was executed safely and within budget. All core was oriented and logged systematically at the Company's Lutila core shed facility, with excellent core recovery averaging 98%.
Integrating data from this 2026 campaign, two earlier BULGOLD holes, and three historic holes defines a major epithermal upflow zone at least 500 metres wide. This extensive zone features widespread anomalous gold mineralisation, characteristic epithermal rock textures, and a robust pathfinder element footprint consisting of arsenic, antimony and thallium.
| HOLE ID | DEPTH (m) | X_UTM34N | Y_UTM34N | Z_UTM34N | Azimuth | Dip | Comment |
| CVDD001 | 515.4 | 344676 | 5392596 | 575 | 91 | -67 | BULGOLD |
| KG-KP-2a | 98.5 | 344673 | 5392593 | 575 | 285 | -65 | HISTORIC |
| KG-KP-3 | 175 | 344588 | 5392645 | 581 | 100 | -45 | HISTORIC |
| KG-KP-5a | 157.3 | 344729 | 5392666 | 600 | 280 | -75 | HISTORIC |
| KPDD001 | 645.6 | 344667 | 5392585 | 574 | 280 | -49 | BULGOLD |
| KPDD002 | 209.65 | 344356 | 5392619 | 513 | 103 | -51 | BULGOLD |
| KPDD003 | 207.8 | 344412 | 5392510 | 518 | 80 | -51 | BULGOLD |
| KPDD004 | 148.2 | 344388 | 5392510 | 514 | 244 | -51 | BULGOLD |
| KPDD005 | 214.4 | 344769 | 5392275 | 594 | 55 | -50 | BULGOLD |
Table 1: Exploration drill hole information.
Selected analytical results highlighting the widespread anomalous gold mineralisation within the newly defined 500-metre-wide epithermal upflow zone at the Kopernica Vein System are presented in Table 2 (below). The data includes significant intercepts from the 2026 diamond drilling campaign, integrated with key intervals from earlier BULGOLD and historic drilling.
| HOLEID | FROM | TO | LENGTH | Au (g/t)* | Alteration Stage |
| CVDD001 | 33 | 51 | 18 | 0.14 | Sericite-Pyrite-Quartz |
| CVDD001 | 126 | 131 | 5 | 0.13 | Sericite-Pyrite-Quartz |
| CVDD001 | 358 | 364 | 6 | 0.13 | Sericite-Pyrite-Quartz |
| KG-KP-2a | 16.2 | 29 | 12.8 | 0.26 | Sericite-Pyrite-Quartz |
| KG-KP-3 | 1 | 7 | 6 | 0.29 | Sericite-Pyrite-Quartz |
| KG-KP-5a | 85.6 | 108 | 22.4 | 0.34 | Sericite-Pyrite-Quartz |
| KPDD001 | 7 | 11 | 4 | 0.29 | Sericite-Pyrite-Quartz |
| KPDD001 | 15 | 16 | 1 | 0.11 | Sericite-Pyrite-Quartz |
| KPDD001 | 22 | 23 | 1 | 0.12 | Sericite-Pyrite-Quartz |
| KPDD001 | 221 | 222 | 1 | 0.24 | Pyrite-Sericite±Quartz |
| KPDD001 | 418 | 420 | 2 | 0.17 | Pyrite-Sericite±Quartz |
| KPDD001 | 491 | 492 | 1 | 0.36 | Quartz-Sericite-Pyrite |
| KPDD001 | 498 | 504 | 6 | 0.14 | Quartz-Sericite-Pyrite |
| KPDD002 | 20 | 21 | 1 | 0.16 | Pyrite-Sericite±Quartz |
| KPDD003 | 31 | 33 | 2 | 0.19 | Sericite-Pyrite-Quartz |
| KPDD004 | 11 | 12 | 1 | 0.13 | Sericite-Pyrite-Quartz |
| KPDD004 | 31 | 38 | 7 | 0.10 | Sericite-Pyrite-Quartz |
| KPDD004 | 41 | 42 | 1 | 0.33 | Sericite-Pyrite-Quartz |
| KPDD004 | 55 | 56 | 1 | 0.10 | Pyrite-Sericite±Quartz |
| KPDD004 | 61 | 63 | 2 | 0.10 | Sericite-Pyrite-Quartz |
| KPDD005 | 48 | 49 | 1 | 0.15 |