Gorilla Gold Mines Ltd (ASX:GG8) Comet Vale drilling progress sets up December resource reset

Gorilla Gold (ASX:GG8) has advanced its Comet Vale Gold Project in Western Australia with another set of drilling results from the Cheer prospect, adding momentum to an updated Mineral Resource Estimate scheduled for December 2025 and reinforcing the company’s focus on building a high grade resource base across multiple prospects in the Goldfields.

Highlights

• Updated Mineral Resource Estimate for Comet Vale due in December 2025, incorporating 2025 drilling from Lakeview, Sovereign and Cheer.

• Latest Cheer results include 15 metres at 4.4 grams per tonne gold from 93 metres to end of hole in CVEX102 and 5 metres at 3.4 grams per tonne gold from 109 metres in CVEX098.

• Standout intercepts across the MRE update set include Lakeview with 19 metres at 18.1 grams per tonne from 80 metres, 11 metres at 24.8 grams per tonne from 145 metres, and 24 metres at 10.3 grams per tonne from 200 metres, and Sovereign with 5 metres at 66.3 grams per tonne from 399 metres, 7 metres at 19 grams per tonne from 49 metres, and 6 metres at 22 grams per tonne from 70 metres.

• Current stated resources across the portfolio comprise Comet Vale 95 thousand ounces at 4.8 grams per tonne, Mulwarrie 350 thousand ounces at 3.6 grams per tonne, and Vivien 278 thousand ounces at 4.1 grams per tonne.

• Two reverse circulation rigs and two diamond rigs operating across Comet Vale, with Mulwarrie drilling to restart in November.

Comet Vale sits 97 kilometres north of Kalgoorlie on granted mining leases in a district with several operating mills within one hundred kilometres, a factor that is usually helpful for project optionality.

The field campaign has broadened the footprint beyond the historical Sovereign underground workings and has defined multiple east west mineralised structures that extend for more than one kilometre each, with drilling this year returning some of the highest grade and gram metre intercepts reported on the project to date.

Within that context, the new Cheer intersections extend mineralisation along strike to a reported 1.2 kilometres and to a depth of two hundred metres, with mineralisation remaining open along strike and at depth.

At Lakeview, the accumulation of thick and high grade hits positions the prospect as a central feature of the pending estimate.

The disclosed intercepts of 19 metres at 18.1 grams per tonne, 11 metres at 24.8 grams per tonne and 24 metres at 10.3 grams per tonne, supported by earlier programs, indicate continuity along strike and at depth that will be quantified in the December model.

At Sovereign and Sovereign North, very high grade narrow intervals such as 5 metres at 66.3 grams per tonne demonstrate the tenor present within the broader system, while at Cheer the program has progressed from a maiden 2024 phase to a steady expansion of the mineralised trend.

“This has been an exceptional year of drilling and discoveries at the Comet Vale Project for Gorilla, which will culminate in a very significant MRE update in early December 2025,”

Charles Hughes, Gorilla Gold Chief Executive Officer, said.

The project history is material. Comet Vale has produced more than two hundred thousand ounces at grades above twenty grams per tonne, and the current stated resource of 95 thousand ounces at 4.8 grams per tonne reflects past focus on getting the Sovereign mine back into production rather than on systematic exploration.

The recent strategy reverses that ordering, prioritising discovery, step out programs and resource conversion ahead of any restart decisions, with the company flagging near mine infill around the end of the decline at Sovereign where high grades occur in the inferred category.

Operationally, two reverse circulation rigs and two diamond rigs are allocated across Cheer, Sovereign North and Lakeview, which should maintain sampling density into and beyond the cut off for the December update.

In parallel, teams are mobilising to Mulwarrie where a program aimed at increasing the 350 thousand ounce resource and lifting the indicated component is scheduled to commence in November. Vivien drilling is slated to start in January, adding a third front of activity.

The December 2025 Comet Vale estimate will be a key inflection point because it will consolidate a year of aggressive drilling across Lakeview, Sovereign and Cheer into a single updated model, while subsequent programs are already planned to pursue extensions, convert near mine ounces and test additional targets such as the intersection of the Silverback and Sovereign shear zones, Lakeview West and Happy Jack.

With multiple rigs active, granted tenure, and established regional infrastructure, the work program outlined for the December quarter and early 2026 provides a clear framework against which investors can track delivery, grade continuity and growth in the resource base.

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