Final Report for Southern Flank Greenfields Drilling Program - Q14 and TP14 Prospects Resourcing the Territory Program - Round 18 Alligator River Project

Abstract

The Southern Flank corridor contains two primary prospects, 'TP14 & 'Q14', with favourable geological settings for the formation of Proterozoic Unconformity Related Uranium Deposits ('URUD's'). The main objectives of the program were to: 1. Test interpreted stratigraphy of prospective unit: Paleoproterozoic Lower Cahill Formation and Neo-Archean Gneiss; 2. Test surface radiometric & geochemical anomalies; 3. Identify the extent and trend of associated hydrothermal alteration. The prospectivity of the area is supported by geophysical, geochemical & geological datasets fully owned by Deep Yellow Ltd. The RC drilling program commenced on 03/10/2025, progressing from Phase 1 to 2, and later at Q14 progressing to Phase 3 Diamond Drilling from 15/10/2025 to 30/10/2025. The drilling identified broad hydrothermal alteration at the Q14 prospect (dominated by clay, white mica and iron oxides), with intense brecciation and coincident uranium mineralisation. TP14 reverse circulation (RC) drilling completed the phase-1 drill holes, and results indicate a future focus to the north rather than the planned westward line.