Amani Gold Limited announced a resource upgrade for the Kebigada deposit of 141.1Mt @ 0.97g/t Au (4.4Moz contained) which includes a maiden measured resource of 32.9Mt @ 1.08g/t Au (1.1Moz contained). The Giro Gold Project Global Mineral Resource Estimate (Kebigada and Douze Match) is now 149.2Mt @ 0.99g/t Au (4.7Moz contained). Updated Kebigada Resource: Amani Gold (Amani) commissioned Geowiz Consulting (Geowiz) to prepare a Mineral Resource Estimate (MRE) for the Kebigada Gold Deposit (Kebigada) which forms part of the Giro Gold Project (Giro) located in the Haut-Uele Province, northeast Democratic Republic of Congo (DRC). The MRE is reported in Table 1 within an optimised open pit shell to determine that blocks > 0.5g/t Au have reasonable prospects of future economic extraction by surface mining. The MRE has been classified as Measured, Indicated and Inferred in accordance with the JORC Code. A total of 209 reverse circulation drillholes (20,209m) and 38 diamond drillholes (12,514m) were used to define the Kebigada deposit for a total of 32,723m of drilling. Amani completed 8 diamond drillholes holes (3,532m) in September 2022 which were successful in confirming the March 2020 MRE and extending the mineralisation at depth.
The deposit was sampled by drilling at nominal 50m spacing with infilling to 25m in the central part of the deposit. The diamond drillholes were predominantly drilled to the north-east (045°) at a dip between 50 and 60 degrees. The reverse circulation drillholes were drilled to the north-east (045°) at a constant dip of 60°. Diamond drillhole core was split longitudinally in half, producing samples with an average weight of between approximately 2 and 4kg. The same half was continuously sampled on nominal 1 m intervals. The sample interval was adjusted in order to honour geological contacts. The reverse circulation drillhole samples were passed through a riffle splitter three times, after which approximately 5kg was taken as a reference sample and 2kg was weighed and labelled for laboratory dispatch. The samples were crushed and split in an accredited laboratory to produce a 50g charge for fire assay with an Atomic Absorption (AA) finish. Sampling was carried out under strict QAQC procedures as per industry standards where certified reference materials (CRMs) of varying grades, blank samples and field duplicates are each inserted at a rate of 1 in 30 so that every 10th sample is a quality control sample. The overall strike of the mineralised zone at Kebigada is around 335°, therefore the block model and drill hole data were rotated clockwise by 25° to better align the model blocks with the mineralisation. Wireframe surfaces were generated for the base of laterite and base of saprolite using the drillhole logs and used to divide the mineralisation into three zones - laterite, saprolite and fresh rock. The mineralisation dips 65°-70° west (in local grid) in the fresh rock and saprolite, but is flat in the laterite zone. A block model was set up with a parent cell size 10m (E) x 20m (N) x 10m (RL) with standard sub-celling to 2.5m (E) x 5.0m (N) x 2.5m (RL) in the laterite zone. The smaller 10m Easting dimension was used to reflect the geometry and orientation of the mineralisation. Samples composited to 2m length were used to interpolate Au into the block model using ordinary krigingafter applying top-cuts to reduce the influence of outlier grades. All block modelling was completed using SurpacTM v6.6.2 software. Three individual zones - laterite, saprolite and fresh rock - were used to assign average measured densities to the block model taken from 12,522 core samples and all tonnages are estimated on a dry weight basis. The laterite has been extensively worked by artisanal miners in places and limited mining was carried out in the Belgian colonial era. The laterite and saprolite tonnage estimates were reduced by 5% to account for cavities intersected during drilling.
A three-pass search strategy was used for the estimates, with an increase in the search radius and decrease in the
number of samples required to estimate a block for passes 2 and 3. The search ellipse was oriented at -70 to grid west
for the saprolite and fresh rock and horizontally for the laterite. Blocks estimated in the first search pass were classified
as Measured, blocks estimated in the second search pass were classified as Indicated, while all other estimated blocks
were classified as Inferred. The estimation pass categories were further modified to restrict the Measured and Indicated
resources to the central part of the deposit. Previous estimates have only classified the deposit to an Indicated category
but since the last resource update in 2020, Amani has drilled a further 8 diamond drillholes (3,532m) to confirm and
extend the known mineralisation. These holes have shown excellent correlation with the 2020 block model and have
provided confidence to upgrade the central part of the 2020 Indicated blocks to Measured category. A Lerch-Grossman pit optimisation was run using a price of USD 2,000 per ounce with recoveries of 88% as reported in
the 9th November 2016 metallurgical testwork announcement. A 50° slope angle was used for fresh rock and laterite,
mining costs of USD 2.50 per tonne and processing cost of USD 28 per tonne were assumed. The block model was
reported inside the pit shell to determine that blocks >0.5g/t Au have reasonable prospects of future economic
extraction by surface mining. Validation of the grade estimates was completed by: Visual checks on screen in cross-section and plan view to ensure that block model grades honour the grade of sample composites; Statistical comparison of sample and block grades; Generation of swath plots to compare input and output grades in a semi-local sense by northing. The deposit appears to be of sufficient grade, quantity, and coherence to have reasonable prospects for eventual economic extraction. RC Drilling Campaign: Recent exploration reverse circulation drilling completed at the Kebigada South-East prospect does not form part of the current Kebigada resource area (see ASX Announcement titled "RC Drilling Intersects Extension Zone Of Kebigada Deposit" dated 27 February 2023). Further drilling is required to test the consistency and extent of these extensions and incorporate them into the Giro Mineral Resource Estimate.