ATEX extends B2B Breccia 200m south; intersects 37m of 1.72% CuEq

Mineralization Expanded Beyond B2B Breccia to the North and Eastern B2B Extent Better Defined; ATEX also Identified New Porphyry Targets

Phase VII to Advance Multiple High-Priority Targets Ahead of Updated Mineral Resource in 2H 2027

Toronto, Ontario--(Newsfile Corp. - August 26, 2026) - ATEX Resources Inc. (TSX: ATX) (OTCQX: ATXRF) (" ATEX " or the " Company ") is pleased to announce the final set of assay results for its Phase VI drill program, concluding the campaign at the Valeriano Copper-Gold Project (" Valeriano " or the " Project "), located in the Atacama Region, Chile. ATEX plans to begin its Phase VII drill program shortly with more details to be provided closer to program commencement.

Drilling highlights include:

Final Phase VI drill results expanded the high-grade B2B breccia strike length approximately 200 metres to the south where it remains open for further growth and follow-up in Phase VII.

Further defined the B2B breccia limits to the north and east and highlighted expansion potential to the north beyond B2B in mineralized rhyolite.

New porphyry vectors were identified north and south of B2B, including porphyry-style alteration, copper mineralization and quartz veining more than 400 metres north of the known system, supporting the potential for continued exploration success beyond currently drilled areas.

Multiple high-priority follow-up targets will be advanced in the upcoming Phase VII drill program.

Key drill hole highlights are summarized in the table below, with full technical context provided in the Technical Highlights section.

Table 1 - Drill Hole Highlights

Notes:

Copper equivalent ("CuEq") values and constituent metal grades are summarized from Table 2.

ATXD19A: 64m of 1.01% CuEq: 0.66% Cu, 0.29 g/t Au, 1.3 g/t Ag and 103 g/t Mo; 228m of 0.84% CuEq: 0.54% Cu, 0.23 g/t Au, 1