Revolver Resources Holdings Limited provided update on ‘Revolver Reveals Maiden Copper Mineral Resource at Dianne’. The resource estimation was based on a validated Dianne drillhole database which contains drilling from 14 diamond holes drilled by RRR during 2021-2022 totalling 2,264 metres and 49 historic holes completed by Mareeba Mining and Exploration (MME) between 1972 and 1975, Openley Pty Ltd. (OPL) in 1995 and Dianne Mining Corporation Pty Ltd. (DMC) in 2001, comprising 732.5 metres of diamond core (DD) and 1898.3m of reverse circulation pre-collars with diamond tails (RC/DD) and 1,893.0 metres of reverse circulation drilling (RC). The validation process for historic drillholes included compiling source drillhole data, QAQC data, geology data, historic and new metallurgical test work, comprehensive verification of the historic data, completion of resampling, assaying, pair hole analysis and bulk density analyses of existing core.

Historic drillholes that could not be adequately validated through the validation process were omitted from the database used for the resource estimation. Recent sampling of the deposit by RRR consisted of diamond drilling (H Q3, HQ, and N Third Quarter core size). Sample interval lengths ranged from 0.25 ­ 1.8 m in length based on geological intervals determined by logging geologists.

The core was cut in half or quarter by a diamond core saw on site with care taken to sample the same side of core each time for a representative sample. Fragments of broken or clayey core were sampled using a small plastic scoop ensuring fragments were taken uniformly along the core length. Friable material on exposed fracture surfaces on the ends of core potentially containing copper, zinc and cobalt oxides that may be washed away with core sawing have had a representative part of the surface scraped from the fracture and added to the sample prior to cutting.

Mareeba Mining and Exploration (MME) completed diamond drilling between 1972 and 1975. Original sampling was half core for geochemical analysis. In most cases only the massive, high- grade copper mineralisation was selected for sampling.

Visually determined zones of ‘lower grade’ copper mineralisation were not sampled by MME. Sample preparation methodology was not documented. Drillholes stored at the Geological Survey of QLD (GSQ) Exploration Data Centre (EDC) were check assayed in 2001 by JNK Exploration Services and in 2021 by Global Ore Discovery (Global Ore) on behalf of RRR to validate the grades returned from the original assays by MME.

The 2001 check assays were ¼ core re-assays, with some additional ½ core samples of previously unsampled core. Coherent core was cut using the EDC diamond saw and broken core was sampled as a composite grab by EDC samplers. The 2021 check assays were ¼ core for re-assays and ½ core when new samples of previously unsampled core was cut by the EDC diamond saw with supervision and sampling by Global Ore.

Openley Pty Ltd. (OPL) drilled 19 reverse circulation (RC) holes in 1995. Three holes (ORC15-17) were extended with NQ diamond tails (RCDD). RC samples were bagged over 1 m intervals with one half retained after splitting.

Initial RC sampling was completed as 5 m composites with 1 m re- sampling of intervals assaying >1 % Cu. RC sample collection protocols were not recorded. Select intervals of ½ cut diamond core were sampled for geochemical analysis.

Dianne Mining Corporation Pty Ltd. (DMC) drilled 11 diamond holes with RC precollars in 2001, followed by a 12-hole RC drill program in 2022. RC samples were taken as 1 m samples, with the unmineralised upper portion of the hole not sampled in some cases. Samples were either split into three equal parts using a Jones riffle splitter or split into a 1/8 sample by unspecified type of splitter.

Selected samples of diamond core were cut and sampled as ¼ HQ or NQ core with sampling intervals of 0.06-5.2 m based on geological boundaries. Drill samples collected by RRR in 2021-2022 were assayed by ALS in Townsville. Sample preparation included weighing samples, drying to 60°C, crushing core to 2 mm, splitting by a Boyd rotary splitter then pulverising a subsample to 85% passing 75 µm. Assaying included 30 g fire assay with AA finish (Lab Code Au-AA25) for Au and a 33-element suite with near-total four acid digest and ICP-AES finish (Lab Code ME-ICP61).

Assays for Cu and Zn > 10,0000 ppm were re- assayed with Ore grade analysis (Lab Code OG62). Company control data included the insertion of coarse and pulp blanks and certified standards for Au, Ag, Cu, Pb and Zn. Additional Company controls included field, lab coarse reject (crushing stage) and pulp (pulverising stage) duplicates.

Quartz washes were requested during sample preparation after samples with logged native copper to minimise sample contamination. Standard assay results were within acceptable statistical variation. Blank assays showed no contamination.

ALS quality control included blanks, standards, pulverisation repeat assays and sizings and returned results within acceptable statistical variation. Original assays for DMD03, and DMD06-14 were carried out by Supervise-Sheen Laboratories Ltd, other holes not documented but are assumed to be assayed by the same lab. Samples were assayed for Cu, Pb, Zn, Ag, Cd and Co by AAS.

Copper and Zn were also assayed by a wet assay method (noted in DMD05 and DMD06 but may be expected in other holes). The exact assay details (digest and finish) are not documented. Quality control procedures are unknown.

The 2001 check assays by JNK Exploration Services were undertaken by ALS Brisbane laboratory included Cu, Pb, Zn, Ag by partial aqua regia digest with AAS finish (Lab Code A101) and Au by 50 g fire assay with AAS finish (Lab Code PM209). Sample prep is unknown but assumed to be valid given the reputable lab (ALS) and year (2001). Company quality control protocols were not implemented.

ALS quality control comprised of blanks, standards and pulverisation repeat assays, with results acceptable and passing ALS internal review.