Gorilla Gold (ASX:GG8) sovereign deposit expands high-grade zone at Comet Vale

Gorilla Gold has reported material progress at its North Kalgoorlie Hub in Western Australia, with ongoing drilling at the Comet Vale Project producing multiple high-grade gold intercepts at the Sovereign Deposit.

The results confirm the scale and grade of the Comet Vale system and highlight the continued expansion of high-grade zones within the current resource, while concurrent drilling at other projects in the hub, including Mulwarrie and Vivien, supports the company’s broader growth strategy.

Highlights

• Sovereign Deposit intercepts include 3.8m @ 21.0 g/t Au from 374.3m (STEX165) and 2.1m @ 24.8 g/t Au from 328.8m (STEX171).
• Five rigs are now active across the North Kalgoorlie Hub to accelerate resource definition and discovery drilling.
• Sovereign hosts a current resource of 410,000 oz @ 4.3 g/t Au over 1.3 km strike, with potential extension beyond 2.5 km.
• High-grade mineralisation occurs in quartz veins within shear zones, adjacent to major stratigraphic contacts from mafic to ultramafic lithologies, with visible gold and sulphide development.
• Parallel drilling programmes at Mulwarrie and Vivien are ongoing, with assay results awaited, to expand the hub’s resource base of 1.2 Moz @ 3.7 g/t Au.

The Sovereign Deposit remains the largest and highest-grade target in the Comet Vale Project, with mineralisation hosted in quartz veins associated with pyrrhotite-chalcopyrite-sphalerite-galena sulphides forming within shear zones at lithological contacts.

Recent intercepts extend the known mineralisation footprint, highlighting multiple parallel lodes developing around the contact of two major units, and supporting the potential to increase grade and overall resource size.

Ongoing infill and step-out drilling is conducted with rigorous QAQC protocols, including 1m RC and half-core diamond samples, photon assay analysis, and internal standards to ensure assay accuracy.

Gorilla Gold CEO Charles Hughes said:

“Our 2026 exploration campaign is now really moving up a gear as the flow of assay results begins to accelerate. These latest results from the cornerstone Sovereign Deposit continue to reinforce the scale and endowment of the key gold systems across the Comet Vale Project,”

Beyond Sovereign, Gorilla Gold continues definition and discovery drilling across the North Kalgoorlie Hub, with two RC rigs testing high-grade footwall lodes at Sovereign while other rigs follow up discoveries at Diddy Kong, Donkey Kong, and Magilla.

Parallel exploration at Mulwarrie follows up March step-out results, with the historically underexplored hub containing over 60 km of high-priority structural targets, and ongoing metallurgical, geotechnical, and hydrological studies supporting the company’s long-term development plans.

Looking ahead, Gorilla Gold’s 2026 programme is positioned to expand the resource base, further define high-grade zones, and deliver additional growth across the North Kalgoorlie Hub.

With multiple rigs operational and a systematic approach to both discovery and definition drilling, the company is on track to build on its 2025 performance of adding over 1 Moz of new resources, consolidating Comet Vale and Mulwarrie as cornerstone assets within WA’s Eastern Goldfields.

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