The geology of the host rocks and the mineralisation is exposed in the open pit mines in the Chatree leases and the area has been the subject of a number of geological investigations commissioned by Akara.

In the mine area, the host volcanic sequence comprises four main units. The basal unit is dominated by andesite lavas and breccias, containing dacite dome complexes. This is followed by a thick sequence dominated by andesitic breccia. Overlying this is a largely sedimentary package with interfingering rhyolitic breccias. The uppermost unit in the mine area is a lithic rich fiamme breccia. As the lithologies interfinger, the locations of some unit boundaries in core, and especially in chips, are not always clear. All units are cut by dykes, predominantly andesitic, and typically less than 10 metres wide.

Mineralisation
Epithermal gold deposits, such as those at Chatree, are generally formed in areas of active volcanism around the margins of continents, and may be associated with “bonanza” or high grade style mineralisation. Mineralisation in such deposits is deposited from hot fluids which are estimated to range in temperatures from less than 100 degrees centigrade to approximately 300 degrees centigrade. The mineralisation contained in these fluids is deposited as they rise to elevated crustal settings and boil, cool or mix with evolved nearsurface waters which oxidise the fluids to promote high grade gold deposition. The fluids usually travel to ........

Chatree comprises multiple open pits with two carbon-in-leach processing plants able to process 5.5 Mtpa.

Ore will be initially sourced from low grade stockpiles before mining operations recommence in September 2023.

- Chatree was an established open pit mining operation using conventional open pit mining methods and a locally based mining contractor. Conventional open pit mining and contract mining is also assumed for the restart of operations. The Competent Person considers the mining methods to be appropriate for the deposit.

- Pit optimization was undertaken using Whittle Four-X pit optimization, with consideration of all operating costs, commodity prices, mine recovery and dilution factors, metallurgical recoveries, process throughputs, and mining rate limits. Limits were placed on pit optimization to prevent mining within 20 m of the tailing storage facilities. A revenue factor 1.12 optimal pit shell was used as the basis of the final pit designs. Stage mining was used to smooth material movements for scheduling.

- Detailed pit designs were completed for all pits, designed following pit slope recommendations of O’Bryan 2013 and dual lane haul ramps, except for the final benches, which have been designed with one way access to reduce stripping requirements.

- Bench height selection is appropriate for the deposit and expected mining equipment, with both ore and waste to be blasted on 9 m benches then mined in 3 m fl ........

- subscription is required.

- subscription is required.