Gorilla Gold Mines Reports 55.4g/t High-Grade Gold Intersection at New Vince Prospect Near Vivien Underground Mine

Exceptional High-Grade Gold Intercept at Newly Discovered Vince Prospect

Exploration drilling by Gorilla Gold at the Vivien Gold Project has delivered one of the company’s highest-grade intercepts to date. The Vince Prospect, located roughly 400 metres north of the historic Vivien Main underground mine, returned 2.1 metres grading 55.4 grams per tonne gold from 226.9 metres depth in drill hole VIVEX012. This intercept was identified at a previously untested structural target mirroring the geological setting of the main Vivien mineralization, validating the company’s exploration model for pinpointing high-grade zones. Gold mineralization at Vince is linked to the same vein assemblage as the Vivien Main lode, indicating geological continuity within the project area.

Discovered in 2026, the Vince Prospect is considered a structural repeat of the Vivien Main mineralization. Exploration targeted a northeast-striking fault juxtaposing mafic and sedimentary stratigraphy, replicating the geological structure hosting the Vivien Main orebody. Multiple mineralized veins were intersected along the 400-metre drill hole, highlighting potential for additional high-grade zones along strike. An off-hole downhole electromagnetic (DHEM) conductor detected in VIVEX012 further supports the possibility of expanding the discovery beyond the initial intercept.

Vivien Project’s Strong Historical Production and Current Resource Base

The Vivien Gold Project contains a significant mineral resource of 278,000 ounces at 4.2g/t gold, underscoring its economic potential. Historically, the project produced over 370,000 ounces of gold at an average grade exceeding 5.5g/t, demonstrating the high quality of the orebody. Underground mining continued until 2023, primarily from the Vivien Main lode located within granted mining leases near the Agnew-Leinster Road. The region benefits from several operational gold mills within 100 kilometres, offering processing infrastructure to support future development.

Situated 10 kilometres west of Leinster in Western Australia’s Kalgoorlie-Leinster gold district, Vivien lies in a tier-one jurisdiction for gold exploration and production. Beyond Vivien Main, gold mineralization has been identified at multiple prospects including Gem, Rik, Deb, and Val, indicating a broad mineralized system with exploration upside. The current resource and historical production emphasize Vivien as a high-grade gold project with a proven mining history and substantial potential across multiple prospects.

Val Prospect Drilling Yields Encouraging Results Near Existing Infrastructure

The Val Prospect, located just 70 metres from underground workings at Vivien Main, continues to deliver positive drilling results responsive to downhole electromagnetic targeting. Recent drilling returned 4.1 metres at 5.3g/t gold from 218.8 metres depth in hole VIVEX016, and 7.1 metres at 2.0g/t gold from 300.0 metres in hole VIVEX015. Discovered during 2025 exploration, Val lies 30 metres from the Vivien western pit wall and exhibits a distinct orientation from the Vivien Main lode, suggesting a separate mineralized structure within the broader system.

Val’s proximity to existing underground infrastructure offers strategic advantages for future development, facilitating efficient drilling and geological evaluation from established mine access. The ongoing positive drill results and responsiveness to DHEM targeting reinforce the view that Vivien hosts multiple high-grade zones rather than a single orebody. The effectiveness of geophysical methods at Val supports their continued use across the Vivien project.

Agreement Finalized to Begin De-Watering of Vivien Underground Mine

Gorilla Gold has entered into an agreement with a Goldfields Ltd subsidiary to commence de-watering of the fully permitted Vivien underground mine, with pumping expected to start in the coming weeks. This milestone enables restoration of underground access for drilling, geological mapping, and technical assessments essential for evaluating redevelopment options. Removing the flooding constraint allows detailed underground exploration previously not feasible.

De-watering will facilitate underground drilling and comprehensive technical studies to assess potential mine redevelopment. The mine’s fully permitted status indicates regulatory approvals are in place, potentially accelerating future development timelines if economic viability is confirmed. The involvement of Goldfields Ltd’s subsidiary brings experienced mining services expertise to this critical infrastructure operation, advancing understanding of underground mineralization geometry, grade distribution, and mine design possibilities.

Exploration Drilling Supported by Western Australian EIS Funding

The Vivien drilling program has received co-funding from the Western Australian Exploration Incentives Scheme (EIS), which supports exploration activities by reducing financial burdens on junior explorers. This government partnership underscores Western Australia’s commitment to fostering mineral discoveries and sustaining a strong exploration pipeline. While maintaining operational control and ownership of discoveries, Gorilla Gold benefits from reduced upfront costs during this drilling campaign.

Securing EIS co-sponsorship highlights Vivien’s alignment with state exploration priorities. This funding enables Gorilla Gold to sustain exploration momentum across its portfolio while managing cash flow, a vital factor for a junior miner operating multiple projects in the North Kalgoorlie Hub. The successful drilling outcomes under this program validate the company’s geological targeting and exploration strategy at Vivien.

North Kalgoorlie Hub Drilling Targets Resource Expansion at Sovereign

Drilling continues across Gorilla Gold’s North Kalgoorlie Hub, focusing on resource growth at the Sovereign project and follow-up of recent regional discoveries. The company is actively exploring multiple assets within the Kalgoorlie mining district, a tier-one jurisdiction with rich gold mining heritage and numerous operational and development-stage projects. This ongoing drilling program reflects Gorilla Gold’s strategy to expand resources across its Western Australian goldfields portfolio while prioritizing high-grade discoveries at Vivien.

The North Kalgoorlie Hub offers a concentrated exploration portfolio with access to established mining infrastructure, processing capacity, and skilled labour. Maintaining active drilling across several projects supports resource growth and builds development optionality. Gorilla Gold balances exploration at Vivien with broader regional programs, positioning itself to capitalize on discovery opportunities while advancing near-term potential at Vince and Val prospects.

Geological Model Validated by New High-Grade Mineralization Discovery

The Vince Prospect discovery confirms Gorilla Gold’s geological model aimed at identifying structural repeats of Vivien Main mineralization. Targeting northeast-striking faults juxtaposing distinct stratigraphic units successfully located Vince 400 metres north of the main mine, demonstrating the exploration team’s strong understanding of mineralization controls.

This successful model application suggests further high-grade discoveries are possible along similar structural trends within the Vivien project. Multiple gold-bearing quartz veins and an off-hole DHEM conductor at Vince indicate mineralization extends beyond the initial intercept. Geological continuity between Vince and Vivien Main vein assemblages supports the interpretation of a broader mineralized system, guiding future exploration drilling across identified structural targets.

Multi-Prospect Exploration and Effective DHEM Targeting Across Vivien

Gorilla Gold has identified mineralization at several prospects within Vivien, including Gem, Rik, Deb, and Val, alongside Vivien Main and the new Vince prospect. This multi-prospect portfolio points to a widespread mineralized system with potential for additional high-grade zones across various structural trends. Drilling success at Val and Vince demonstrates the effectiveness of downhole electromagnetic (DHEM) geophysical techniques in detecting mineralization at depth.

The positive correlation of drilling results with DHEM targets at Val supports continued use of this geophysical method throughout Vivien. DHEM surveys have successfully identified conductive zones that yielded mineralized intersections, validating this approach for prioritizing drill targets. Combining DHEM with geological insights provides a robust framework for systematic exploration of multiple prospects within the project.

Investment Outlook and Market Implications of Recent Discoveries

The announcement of a high-grade gold discovery adjacent to an existing resource typically attracts investor interest due to potential resource expansion. The Vince Prospect discovery, following strong Val results and coinciding with planned underground de-watering, presents a series of near-term catalysts for market attention. Immediate share price impacts were not publicly available at announcement time.

Investors will likely monitor the progress of the underground de-watering and subsequent underground drilling and mapping programs. Multiple high-grade discoveries across Vivien prospects may enhance market perception of resource growth and development prospects. Future drill results expanding mineralization and underground technical assessments post de-watering could serve as catalysts for reassessing Gorilla Gold’s asset value and exploration potential.