Summary

Mine Type	Open Pit
Status	Active
Commodities	Gold Silver
Mining Method	Truck & Shovel / Loader
Production Start	...
Snapshot	Charters Towers Operation is anchored by the Blackjack processing facility and a strategic package of associated mining leases and infrastructure, including Blackjack, Far Fanning, Granite Castle and Great Britain. Mining in the Blackjack South Pit began in July 2025, with ore supply aligned to Blackjack processing mill throughput. Highlights as at September 2025: Blackjack Plant • Refurbishment & commissioning of the CIL plant completed in July 2025; • Trial pour successfully executed on 6 July 2025; • First ore introduced to the crushing circuit on 14 July 2025 as part of final commissioning phase with first ore milled on 19 July 2025, leading to the first ore-feed smelt on 30 July 2025; • Ramp-up to steady operating state completed in August 2025. Blackjack - Mine Planning Development plan locked in for South Pit (in production), followed by North Pit then Central Pit.
Related Asset

Deposit type

• Vein / narrow vein
• Intrusion related

Summary:

The Charters Towers project includes the Blackjack, Far Fanning, Great Britain and Granite Castle deposits.

Far Fanning
The Project occurs in the Devonian to Carboniferous Burdekin Basin. Mineralisation is hosted within the Devonian Dotswood Group comprised of arkoses, conglomerates, red shales, siltstones and tuffaceous sediments. The Far Fanning Project is located on the northern limb of the regional, west-plunging Kitty O'Shea Anticline. Folded sediments are intruded by the Permo-Carboniferous Mt Kitty O'Shea Suite which is comprised of dolerite, diorite and gabbro. A series of radial andesitic dykes and ring fractures are distributed out from the intrusive centre.

The broad structural target zone at Far Fanning is delineated over a strike length of 1,700m trending west to north-west and is characterised by open fold structures at the eastern end of the trend and monoclines throughout the rest of the structural zone.

The mineralisation consists of numerous lenses. These mineralised lenses parallel and cross cut bedding and vary in width from 2m to over 20m. The overall dip of the lenses is roughly normal to the direction of maximum steepening of the fold. Although the beds in the fold flexure dip to the south, the mineralisation tends to dip to the north at 35° to 50°.

Gold mineralisation is associated with quartz-sulphide stringers and veinlets with minor breccias and disseminated sulphides.

Great Britain
Great Britain is thought to represent an exposed roof pendant of the Ravenswood Batholith, an Ordovician to Mid-Devonian igneous complex intruded into a Proterozoic to Cambrian package of metamorphosed sediments and igneous rocks.

The gold mineralisation at Great Britain is hosted by quartz-carbonate sulphide stockwork and stringer veins within silica-sericite altered envelopes, within the lower greenschist facies Charters Towers Metamorphics.

Locally the host lithologies are comprised of siltstones, sandstones and cherts interbedded with moderately foliated calc-silicates, phyllites and minor banded iron units. The metasediments strike northwest and dip 50 to 60 degrees to the northeast. Subvertical dolerite dykes intrude metasediments and displace the mineralised lodes.

Gold mineralisation occurs as three sub-parallel stacked lodes that are continuous and northeast dipping. The lodes vary in width from 2 to 15m.

Mineralisation identified at Puzzler and Dogmatix prospects reported elevated copper and silver content, with traces of molybdenum. This elemental association is supportive of Permo-Carboniferous gold mineralisation analogous to Mt Leyshon and Ravenswood.

Granite Castle
The geology of the area is comprised of quartzites, schists, gneiss and amphibolites of the Proterozoic Cape River Beds which have been intruded by two Silurian-Devonian intrusives, the Lolworth Intrusive complex and Dumbano Granite. The Dumbano Granite regarded as the source of the mineralising fluids.

Gold mineralisation at Granite Castle is contained within shear zones hosted by the younger phases of the Dumbano Granite. Small scale mining is historically reported to have occurred at Granite Castle between 1910 and 1942 resulting. At total of 1,900t was produced at an average grade of 39g/t Au for 2,411oz Au produced.

Production was predominantly from the Granite Castle and Boulder King lines of workings. Mineralisation at Granite Castle is strongly structurally controlled and is not confined to a specific host lithology. Lodes of mineralisation have formed as a result of hydrothermal fluids, shears emplaced and subsequently have been greisenised. The overprinting has resulted in the masking of much of the original hydrothermal system.

Appreciable levels of silver, lead and zinc are associated with the mineralisation. A total of twelve discrete shear zones have been identified within the project area.

Gold and silver mineralisation are hosted within a steeply dipping (~80 degrees) shear zones from surface and has been tested to a depth of 150m. The Mineral Resource has been estimated along a 600m strike length of the shear zone.

Mapping of the shear zone extends 1km to the west and 200m to the east of the extent of the Mineral Resource.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Commodity Production

Operational metrics

Metrics	2025
Annual processing capacity	....

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Oct 22, 2025
.......................	.......................		Oct 22, 2025
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.......................	.......................		Dec 3, 2025