Dart Mining NL announced that surface sampling of vein-hosted, late-stage epithermal mineralisation at Dart's Granite Flat Copper-Gold project in Northeast Victoria has returned high-grade gold mineralisation. Surface sampling focussing on historic reef working around the Sulphide Shaft ­ Crawley's and Hodder's lines of reef at Granite Flat has identified high-grade gold-silver-copper mineralisation across a strike length of over 400m. Mineralisation is associated with late-stage, low sulphidation vein systems that demonstrate epithermal textures and characteristics.

These veinsets overprint the host Banimboola Quartz Monzodiorite intrusion, and are associated with strong, localised sericite (phyllic) and chlorite alteration, with veins commonly ranging from 0.1m to greater than 0.75m in width. Outcrop on mineralised systems is poor at Granite Flat, and prospecting pits and mine shafts provide the best opportunity to assess in situ mineralisation. The composition of these late-stage epithermal veins is dominantly Au-Ag-Cu, with sporadic, locally enriched Sb, Mo, Te, Bi.

This pattern of elemental enrichment is consistent with a low sulphidation epithermal systems. Vein textures include crustiform banding and comb textures and occasionally include boiling textures and carbonate replacement by silica. Peak results include: · 42.9g/t Au, 705ppm Bi, & 53.1ppm Te (70579)· 0.72g/t Au, 73.7g/t Ag, 0.21% Cu, 690ppm Bi, 0.16% Mo, 0.21% Pb, 0.2% Sb, 0.56%Zn (70650) · 2.88g/t Au, 61.9g/t Ag, 0.21% Cu, 268ppm Bi, 0.20% Mo, 0.54% Pb, 0.05% Sb, 0.46%Zn (70327) · 27.9g/t Au, 6.2g/t Ag, 0.12% Cu (70593). Geochemical correlation of sampling results demonstrates distinct trends between the Crawley's Line, Hodder's Line and Sulphide Shaft workings.

Copper and arsenic fail to show any correlation with gold mineralisation, and copper shows no correlation with any other elements, suggesting that copper mineralisation may represent a discrete event, or that gold and silver mineralisation is tied to separate mineral phases. The Crawley's Line of reef can be characterised by Au-Bi-Te ± Ag-Cu-As mineralisation, whereas the Hodder's line of mineralisation is distinct, in that it can be defined by Ag-Cu-As ± Au-Sb-Zn. On the Hodder's mineralisation trend, Sb and Zn enrichment are directly correlated.

Mineralised samples from Sulphide Shaft demonstrate enrichment in most base metals, which is attributed to multiple mineralisation events evident in the nature of the breccia that hosts mineralisation at the site. Mineralisation at Sulphide Shaft is characterised by the trend Ag-Cu-Bi-Mo-Pb-Zn- Sb ± Au-Te-As. Notably, Te shows a very strong correlation with Au across all samples, suggesting that gold mineralisation may be associated with tellurides.

Several Rotary Air Blast (RAB) drill holes targeted the Sulphide Shaft, Crawley's, and Hodder's line of workings, which include 29m @ 1.2g/t AuEq, including 3m @ 3.7g/t AuEq (EMPRAB03); 8m @ 1.9g/t AuEq, including 2m @ 6.3g/t AuEq (EMPRAB04); 6m @ 2.9g/t AuEq, including 2m @ 7.6g/t AuEq (EMPRAB07). Additional diamond drilling has recently been completed along a strike length of 500m along the Crawley's line of reef to further assess the surface chip and RAB drilling results along strike and at depth. Dart Mining (DTM) considers that gold, silver, and copper are included in the gold equivalent calculation ("AuEq") have reasonable potential to be recovered at Granite Flat given current understanding of the project in these early exploration phases, current geological understanding, and historic production from the area.

The gold equivalence formula used by Dart Mining was calculated based on 100% recovery, using the five-year mean commodity of US$1607 per ounce gold, USD 19.88 per ounce silver, and USD 3.34 per pound copper. Based on the initial stage of exploration, and the geological understanding of the project, DTM considers that AuEq = Au[ppm] + (1.4252xCu[%]) + (0.01237xAg[ppm]) is appropriate for use in the initial exploration targeting of Au-Ag-Cu mineralisation at Granite Flat. The Granite Flat prospect is located nine kilometres southeast of Mitta Mitta township and is accessed via the Omeo Highway.

Historically, the prospect was mined at several small production centres between 1856 and 1918, following an initial discovery identified by tracing the source of alluvial gold in the Mitta River upstream. Previous explorers have targeted the area with geophysical surveys, rock chip, soil and stream sediment sampling, and drilling and trenching. Historic soil grids have established several large, strong Cu-Au anomalies that have seen variable drilling efforts across the prospect.

In total, 18 costeans, 52 reverse circulation (RC) and 19 diamond drillholes have been completed by previous explorers between 1986­1997 (Meltech Ltd., CRA Exploration [now Rio Tinto], and Perseverance Mining Ltd.). The broad intersections of low grade Cu-Au mineralisation returned in historic drilling and Dart's recent 42 hole RAB drilling program are hosted within potassic, chlorite and epidote-altered granodiorite, further confirming the potential for porphyry-style mineralisation. Mineralised zones at Granite Flat are hosted within the Banimboola Quartz Monzodiorite (BQM).

The BQM has been broadly identified as hosting a porphyry style of Cu-Au mineralisation associated with I-type granitoid and sulphide veins, with alteration varying from silicic to argillic to propylitic, with moderate to high background copper (Hesp, 1974; Bolger et al., 1983; Ramsay & Vandenberg, 1986; Wilde, 1988). Monzonite intrusive bodies are often the host of porphyry systems in the Lachlan Fold Belt. Additionally, the Granite Flat prospect lies adjacent to the Gilmore Suture, a significant crustal-scale structure that is associated with the emplacement of several porphyry Cu-Au systems across the border in New South Wales.

Whilst still in the early stages of exploration, Dart Mining geologists believe that many of the geological characteristics and mineralised features of the Granite Flat prospect correspond with key elements of the porphyry exploration model.