Siren Gold Limited Annual Report 2021

Mapping and Sampling (continued) Soil geochemistry has now been completed for over 5kms from Big River North to around 2kms south of St George. The arsenic soil geochemistry shows large anomalies at Big River mine and a 3km long anomaly from Golden Hill to south of St George (Figure 8). Only preliminary pXRF arsenic results have been received to date for the bottom six lines but these results clearly show that the arsenic anomaly continues strongly to the south. The St George soils program has recently been extended 800m to the south, with an additional four 200m spaced lines as shown on Figure 8. Arsenic and gold results for these samples are awaited. Figure 9 shows gold soils received to date with many samples results awaited. These samples have been sent to LabWest in Perth, where they are being analysed using the new UltraFine+ soil technique method developed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and LabWest. The sub-2-micron clay fraction is analysed with the latest microwave digestion techniques and ICP machines, which has low detection limits, and gives clearer data trends and can potentially detect gold in areas covered by glacial till. The gold results received to date largely mirror the arsenic results. Mapping and soil sampling will continue in 2022 south of St George and north of Big River where very little exploration has been completed. Diamond Drilling Only 7 diamond holes have been drilled south of the Big River mine. OGL drilled 7 diamond holes at Big River South and St George in 2011/12 for a total of 926m. All but one hole intersected gold mineralisation, which is encouraging, with several holes intersecting 3-4 narrow structures, with the highest grades of 1m @ 5.5g/t Au in BRS006 and 4m @ 2.1g/t Au in BRS004 at Big River South. Initial drilling at St George by Siren is planned towards the end of 2022. Directors’ Report Figure 9. Big River - St George gold soil plan. for the year ended 31 December 2021 Annual Report 2021 13